Python Software Engineer

Bristol (Hybrid)

A growing tech startup is looking for a Python Software Engineer to join their engineering team and help build and improve a behavioural science platform used by consumer brands.

You’ll work closely with the Head of Engineering in a collaborative team, contributing across the platform and customer-facing product. This is a hands-on role suited to someone who enjoys varied engineering challenges and the opportunity to wear multiple hats in a startup environment.

Responsibilities

• Develop backend services and APIs using Python
• Contribute to the development of the core platform and product features
• Build and maintain services using Docker and AWS
• Work within a Linux-first development environment
• Collaborate closely with the Head of Engineering on platform improvements
• Take ownership of problems and contribute across different areas of the product as needed

Tech Stack

• Python
• FastAPI
• Docker / containerisation
• AWS
• Linux

About You

• Around 2-4 years of software engineering experience
• Strong Python development skills
• Experience building APIs or backend services
• Comfortable working in Linux environments
• Familiar with AWS or cloud infrastructure
• Experience with Docker or containerised applications
• Enjoy working in small teams where engineers take ownership

Ready to Apply?

Contact Jack Winder to find out more.
Please apply with a CV and a cover letter outlining why you’re perfect for the role.
Know someone great for the job? We offer a referral scheme-just get in touch!
Note: We do our best to respond to every application, but due to volume, we can’t always guarantee it. If you haven’t heard back within 7 days, unfortunately, you haven’t been successful this time. Keep an eye on our site for new opportunities!

DV Cleared Software Engineer (DBA / Data-Focused)

Contract: 12 months

Location: Cheltenham (5 days per week onsite, occasional travel to Gloucester)

Rate: £500 - £570 per day (Umbrella, Inside IR35)

Must hold live UKIC DV clearance

About the Role

An exciting opportunity has arisen for an experienced Software Engineer with a strong DBA background to support a growing national security programme based in Cheltenham. This role sits within a high-performing technical team delivering solutions that have real-world impact across the UK Government sector.

You’ll work on data-focused systems, contributing across the full software lifecycle while supporting and improving secure Oracle-based platforms and automation using Ansible.

Key Responsibilities

Design, develop, test, document and support software components within a secure system environment

Provide accurate estimates for development effort from given specifications

Work with a strong focus on data processing and database-driven systems

Support and develop Oracle and Ansible-based infrastructure, including automation

Analyse code defects and deliver timely, robust fixes

Required Skills & Experience

Strong background as a DBA / data-focused software engineer

Hands-on experience with Oracle and Ansible

Solid understanding of backend systems and data processing

Proven ability to troubleshoot, analyse and resolve complex technical issues

Comfortable working collaboratively within Agile teams

Desirable

Exposure to cloud or platform technologies such as AWS, Docker, microservices

Experience working in secure or regulated environments

The Ideal Candidate

You’ll be technically strong, curious, and motivated to solve complex problems. This role would suit someone who enjoys working close to the data layer, values clean, well-documented solutions, and wants to contribute to meaningful, high-impact programmes.

TPBN1_UKTJ

Open Source Software Engineer

Location: Cheltenham

Are you passionate about open source technologies and building innovative solutions? We are looking for an Open Source Software Engineer to join our team and deliver bespoke solutions across multiple platforms, disconnected networks, and cloud environments.

About the Role

As an Open Source Software Engineer, you will work within a small, collaborative team to design and develop software solutions based on open source principles. You’ll contribute to all stages of the development life cycle, from requirements gathering to deployment, while sharing knowledge and supporting team members.

Key Responsibilities

• Develop software for client projects individually or as part of a team.
• Collaborate with technical leads and product owners to implement requirements.
• Capture business needs and translate them into technical specifications.
• Contribute to improving development approaches and quality of deliverables.
• Engage directly with clients and stakeholders to deliver tailored solutions.
• Produce detailed technical design specifications and documentation.

What We’re Looking For

• Qualifications:
  • Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience.
• Experience:
  • Proficiency in programming languages such as Go, Python, or JavaScript.
  • Hands-on experience with Linux-based operating systems (RHEL, Rocky, Debian, Ubuntu).
  • Experience contributing to or managing open source projects on GitHub/GitLab.
  • Strong understanding of Git and version control systems.
  • Knowledge of open source licenses (MIT, GPL, Apache).
  • Familiarity with cloud platforms (AWS or Azure).
• Skills:
  • Ability to write clear technical documentation.
  • Strong debugging, problem-solving, and performance optimisation skills.
  • Excellent communication and collaboration abilities.
• Desirable:
  • Experience with containerisation (Docker) and orchestration (Kubernetes).
  • Agile development experience and familiarity with CI/CD tools.
  • Knowledge of database technologies and messaging systems.

Why Join Us?

• Work on cutting-edge open source projects and cloud-based solutions.
• Collaborate with a talented team in a dynamic, innovative environment.
• Contribute to impactful projects that drive technology sustainability.
• Enjoy opportunities for professional growth and technical leadership.

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

• Must have active enhanced DV (West) Clearance
• Junior to Lead levels available
• £45k to £95k DoE plus 15% clearance bonus
• Must be willing to be full-time on-site in Cheltenham
• Skills required in machine learning, GenAI, NLP, Customer Engagement/Consultancy

Who are we?

We are recruiting Junior, Senior and Lead Data Scientists with AI specialism and enhanced DV Clearance for a prestigious client to work on a portfolio of public and private sector projects. Our client is a global leader in technology, consulting, and engineering services at the forefront of innovation to evolve the world of digital, cloud, and platforms. You’ll experience excellent career progression opportunities to develop your skillset and personal profile in an inclusive culture.

What will the Data Scientist be doing?

Our client is seeking individuals with strong technical expertise in machine learning, GenAI, computer vision, and data science, alongside solid skills in solution architecture and software engineering to design and scale impactful solutions. This role involves working closely with clients to identify challenges, define solutions, communicate their value clearly, and lead teams to successful delivery. There are also opportunities to publish whitepapers and represent the organisation at conferences, all within an inclusive and diverse working environment.

Key Skills and Requirements:

• Proficient in AI techniques including machine learning, GenAI, NLP, deep learning, graph analytics, and time series analysis.
• Strong communicator with the ability to simplify complex concepts, manage stakeholders, and motivate/lead Agile teams to deliver robust outcomes.
• Experienced in securing work through RFI/RFPs, bids, and presentations across public and private sectors.
• Skilled in data science platforms (e.g. Databricks, AzureML) and cloud services (AWS, Azure, GCP), with knowledge of tools like Terraform.
• Experienced in deploying solutions using Docker, Kubernetes, CI/CD tools.

To be Considered:

Please either apply by clicking online or emailing me directly at . For further information please call me on or - I can make myself available outside of normal working hours to suit from 7 am until 10 pm. If unavailable, please leave a message and either myself or one of my colleagues will respond. By applying for this role, you give express consent for us to process & submit (subject to required skills) your application to our client in conjunction with this vacancy only. Also feel free to connect with me on LinkedIn, just search for Henry Clay-Davies. I look forward to hearing from you.

KEY SKILLS:

Data Science / Data Scientist / AI Engineer / AI / Machine Learning / ML / NLP / GenAI / Stakeholder Engagement / Customer Engagement / AWS / Azure / Cloud / Docker / Kubernetes / CI/CD / Deep Learning

Raytheon UK has a unique, perm opportunity for a Senior Data Scientist and Machine Learning Researcher to join our Strategic Research Group (SRG).

As a Senior Data Scientist and Machine Learning Researcher, you will be responsible for the technical development and leadership of AI/ML projects from initial idea scoping right through to final project delivery both in customer and internal domains. You will demonstrate novel thinking and propose new ideas for solving challenging problems while mentoring others on your project team to deliver towards your proposed solution.

Based in Gloucester, Manchester or London in a hybrid capacity (average of 3 days a week on-site). You must be eligible and willing to gain SC and eDV clearance.

Responsibilities

Develop complex, novel data science solutions, contributing significantly to machine learning projects with minimal guidance

Brings experience in scoping, designing, and delivering data-centric solutions while working collaboratively across disciplines

Undertake research and applied AI/ML tasks on both customer and internal research projects

Generate ideas for new research directions and provide technical leadership in small project groups

Mentor more junior team members within their project team and the wider SRG

Work with customers and internal stakeholders, with varied technical knowledge, to determine appropriate technical approaches and do the technical development required for delivery.

Required Skills & Experience

BSc in Machine Learning, Data Science, Computer Science, Mathematics or related field

Experience coding in Python and associated ML packages (HuggingFace, TensorFlow, PyTorch)

Proven experience of delivering ML solutions to customers and internal stakeholders

Demonstrate deep understanding of AI/ML algorithms for different data types and tasks including Generative AI, NLP and computer vision, sufficient to be able to undertake research and development beyond existing literature.

Experience of training and developing AI models including Large Language Models

Ability to produce high-quality scientific writing for internal & external stakeholders as well as academic publications

Experience of mentoring and undertaking technical leadership on small projects

Desirable Skills & Experience

PhD. or Masters degree

Experience using robust ML pipelines, appropriate version control and environment management (e.g. venvs or Docker)

Working knowledge of Linux systems, using basic commandline functionality (e.g. AWS CLI, Docker CLI, Linux commands)

Experience of deploying AI models in a scalable way for external users

Experience working in Cloud, preferably AWS but also GCP or Azure

Research publications in peer reviewed journals

Experience of writing technical project proposals

Benefits and Work Culture

37hr working week with early finish Fridays - start your weekend early!

An informal, flexible working culture that is output focused

25 days holiday + statutory public holidays, plus opportunity to buy and sell up to 5 days and up to 5 paid days volunteering

Contributory Pension Scheme (up to 10.5% company contribution)

Annual company bonus scheme (discretionary)

6 times salary Life Assurance with pension

Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work, amongst others

Enhanced sick pay

Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave

Raytheon UK

This business area provides DevSecOps at scale, Artificial Intelligence, Machine Learning, cyber and geospatial intelligence capabilities to support the defence, intelligence and cyber sectors. Collaborating with customers and suppliers to deliver secure, mission critical systems using the latest technologies and innovations.

Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. Together, we are not just advancing technology; we’re building a community committed to safeguarding a safer and more connected world.

RTX

Raytheon UK is a landed company and part of the wider RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon.

TPBN1_UKTJ

Analytics Platform Engineer (Python, Kubernetes) - Secure Gov - Cheltenham - (RL8096)

Job Title - Analytics Platform Engineer (Principle & Senior)
Location - Cheltenham
Salary - Competitive
Benefits - Bonus and commission scheme, comprehensive benefits package including private medical and pension, flexible hybrid working, clear progression with funded training, and enhanced long-term incentives including additional leave and retention bonuses.

Work on analytics platforms that support highly sensitive, mission-critical programmes within a secure environment. This is an opportunity to build and scale modern data platforms while contributing to projects of national significance, alongside some of the strongest engineers in the sector.

The Client - We’re partnering with a leading organisation in the secure government sector to support the growth of a key programme delivering advanced data and analytics capabilities. This is a critical hire within an expanding team, focused on building and scaling platforms that underpin mission-critical solutions.

Operating at the forefront of data, cloud, and AI-driven innovation, they offer an environment where engineers can work on complex, high-impact challenges with real-world significance.

The Candidate - This would suit a candidate with a strong background in data or analytics platform engineering, who is comfortable working across both software development and infrastructure. You’ll enjoy solving complex technical challenges, working in dynamic environments, and collaborating closely with Data Scientists and MLOps teams. A pragmatic, adaptable mindset is key, along with a passion for building scalable, secure systems that enable data-driven outcomes. You should also be comfortable working in secure, highly regulated environments.

The Role - We are seeking Senior and Principal Analytics Platform Engineers to join a growing team delivering high-impact solutions within a secure environment. You will play a key role in designing, building, and evolving a modern analytics platform, supporting the full life cycle from development through to deployment and ongoing optimisation. This is a hands-on role offering exposure to a broad and evolving technology landscape. Due to the nature of the work, you will be operating within a highly secure environment with specific access requirements.

Key Duties:

• Design, build and evolve scalable analytics and data platforms
• Contribute across the full software development life cycle
• Support cloud migration and data management initiatives
• Develop, test and deploy new platform capabilities
• Troubleshoot and enhance existing analytics services
• Provide hands-on support to Data Scientists and MLOps teams
• Tackle complex engineering challenges across a varied tech stack

Requirements:

• Strong experience with Python
• Experience with Kubernetes and Docker
• Understanding of CI/CD pipelines (eg GitLab)
• Exposure to data platforms, MLOps or machine learning environments

Desirable:

• Spark or Scala
• AWS services (eg S3)
• Elasticsearch or graph databases
• Vector databases/modern data tooling
• OIDC/OAuth
• Node.js or React

To apply for this Analytics Platform Engineer permanent job, please click the button below and submit your latest CV.
Curo Services endeavours to respond to all applications, however this may not always be possible during periods of high volume. Thank you for your patience.
Curo Services is a trading name of Curo Resourcing Ltd and acts as an Employment Business for contract and temporary recruitment as well as an Employment Agency in relation to permanent vacancies.

Location: Gloucester (Hybrid / On-site) Salary: Up to £72,000 (Dependent on Experience) Security Clearance: Must be eligible a sole British Citizen. Role Overview As a DevOps Engineer within the Digital Intelligence division, you will be the vital link between development, testing, and operations. You will support national security missions by automating the delivery of high-assurance software. Your work ensures that code moves swiftly from developer environments to secure, hardened production platforms with maximum reliability and minimal manual intervention. Key Responsibilities CI/CD Pipeline Management: Design, build, and maintain automated build and release pipelines (e.g., Jenkins, GitLab CI) to streamline software delivery. Infrastructure as Code (IaC): Use tools like Terraform or Ansible to manage cloud and on-premise infrastructure in a repeatable, version-controlled manner. Container Orchestration: Deploy and manage scalable workloads using Docker and Kubernetes (EKS, AKS, or self-hosted clusters). Cloud & Platform Management: Configure and secure environments across Public (AWS/Azure) and Private cloud platforms. System Integration: Collaborate with software engineers to resolve complex issues across infrastructure, networking, and databases. Security & Hardening: Implement DevSecOps best practices, including server hardening and automated security benchmarking (e.g., CIS). Professional Experience Proven experience in a DevOps, SRE, or Infrastructure role within a complex, high-security or regulated environment. Experience working within Agile delivery teams (Scrum or Kanban). Strong understanding of monitoring and logging stacks (e.g., ELK, Prometheus, Grafana). Deep familiarity with version control systems, specifically Git. A “Security-First” mindset regarding all aspects of automation and deployment. Benefits & Culture Flexible Working: Hybrid working model with a focus on work-life balance. Career Progression: Defined pathways into Senior DevOps or Lead Architect roles. Professional Development: Access to dedicated training budgets and internal mentorship. Pension & Healthcare: Industry-leading pension scheme and private medical insurance. Security & Eligibility Nationality: Due to the nature of the work within Digital Intelligence, candidates must typically be British Citizens (often without dual nationality) to meet vetting requirements. Clearance: Successful candidates will be required to undergo a rigorous UK government background investigation (SC or DV level).

TPBN1_UKTJ

Software Engineer - Open Source Specialist Location: Gloucestershire Contract Type: Contract About the Role Guidant Global is partnering with our client to recruit an experienced Software Engineer with strong open‑source expertise. You'll join a small, highly skilled technical team delivering bespoke, open‑source‑driven solutions across multiple platforms, including cloud environments and disconnected networks. This role is ideal for someone who thrives in collaborative engineering environments, enjoys solving complex problems, and is passionate about building scalable, secure, and high‑performance applications. Key Responsibilities Develop high‑quality software for client projects, working individually or as part of a development team Collaborate with technical leads and product owners to interpret and deliver against technical requirements Engage directly with clients to gather requirements and propose innovative solutions Contribute to all aspects of the software development lifecycle Produce detailed technical documentation and design specifications Share expertise with colleagues, supporting a culture of continuous learning Work alongside or directly within client teams when required Drive improvements in development approaches, code quality, and delivery standards Required Qualifications Bachelor's degree in Computer Science, Software Engineering, or equivalent experience Proven experience contributing to or managing open‑source projects Experience & Technical Skills Essential Strong proficiency in Go, Python, or JavaScript Experience with Linux-based operating systems (RHEL, Rocky, Debian, Ubuntu) Hands‑on experience with Git and open-source platforms (GitHub/GitLab) Ability to build and deploy scalable applications or libraries Strong debugging, problem‑solving, and performance optimisation skills Understanding of open‑source licensing (MIT, GPL, Apache) Experience with cloud platforms such as AWS or Azure Ability to create clear, comprehensive technical documentation Experience working within development teams on both minor and major projects Background developing robust, scalable, secure enterprise systems Experience across the full software development lifecycle Ability to follow fast, iterative development approaches Understanding of build & release management using tools like Maven, NPM, PyPI, Ansible Experience using Atlassian toolsets (Jira, Confluence, etc.) Desirable Experience with containerisation and orchestration (Docker, Kubernetes) Understanding of Agile sprint planning and cross‑team collaboration Ability to take on technical leadership responsibilities Stakeholder engagement across technical and non‑technical functions Knowledge of CI/CD tools, scripting languages, database technologies, messaging technologies Experience with vulnerability research Behavioural Competencies Strong communication skills, able to engage effectively with both technical and non‑technical audiences Collaborative team player who shares knowledge openly Proactive approach to problem‑solving and client engagement Adaptable, innovative, and comfortable working in fast‑paced environments Why Join Through Guidant Global? Guidant Global is a trusted partner in connecting talented professionals with impactful, forward‑thinking organisations. We support you throughout the recruitment process, offering transparent communication and a people‑first approach. Guidant Global is acting as an Employment Business in relation to this vacancy

DevOps Engineer - eDV Cleared - Up to £100,000

Oscar Technology are working with a leading consultancy focused on delivering highly secure IT Infrastructure and Networks for government and defence organisations across the UK.

Despite their successes to date, they have plenty of ambitious goals to achieve in the coming years, with the team expected to grow exponentially in coming months. Now is the time to join.

Due to the nature of the role, an active UK*C DV Clearance is required for eligibility.

Your day-to-day will consist of:

• Gathering and analysing statistics from operating systems and applications regarding performance tuning and error searching.
• Troubleshooting and providing solutions for technical issues across the stack.
• Be a part of system design consultation, platform management and capacity planning.
• Using well-defined service level objectives to balance feature development speed and reliability.
• Ensure compliance with GIT Policies
• Manage and optimise AWS Cloud Infrastructure
• Design, develop, test, and deploy scalable and resilient solutions, including Terraform modules and Kubernetes configurations, to support evolving business needs.
• Optimize deployment processes through automated CI/CD pipelines

Requirements:

• Bachelor’s degree (or equivalent) in Computer Science or related discipline.
• Prior experience in a DevOps Engineer role using Azure OR AWS, (EC2, RDS, S3, VPC, CloudFormation)
• Experience with IaC such as Terraform.
• A background in containerisation and orchestration technologies such as Docker and Kubernetes.
• Knowledge with CI/CID pipelines and tools.
• Experience with monitoring and observability tools, including Grafana, Prometheus or Loki.

DevOps Engineer - eDV Cleared - Up to £100,000

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

DevOps Engineer - eDV Cleared - Up to £100,000

Oscar Technology are working with a leading consultancy focused on delivering highly secure IT Infrastructure and Networks for government and defence organisations across the UK.

Despite their successes to date, they have plenty of ambitious goals to achieve in the coming years, with the team expected to grow exponentially in coming months. Now is the time to join.

Due to the nature of the role, an active UK*C DV Clearance is required for eligibility.

Your day-to-day will consist of:

Gathering and analysing statistics from operating systems and applications regarding performance tuning and error searching.

Troubleshooting and providing solutions for technical issues across the stack.

Be a part of system design consultation, platform management and capacity planning.

Using well-defined service level objectives to balance feature development speed and reliability.

Ensure compliance with GIT Policies

Manage and optimise AWS Cloud Infrastructure

Design, develop, test, and deploy scalable and resilient solutions, including Terraform modules and Kubernetes configurations, to support evolving business needs.

Optimize deployment processes through automated CI/CD pipelines

Requirements:

Bachelor’s degree (or equivalent) in Computer Science or related discipline.

Prior experience in a DevOps Engineer role using Azure OR AWS, (EC2, RDS, S3, VPC, CloudFormation)

Experience with IaC such as Terraform.

A background in containerisation and orchestration technologies such as Docker and Kubernetes.

Knowledge with CI/CID pipelines and tools.

Experience with monitoring and observability tools, including Grafana, Prometheus or Loki.

DevOps Engineer - eDV Cleared - Up to £100,000

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

TPBN1_UKTJ

At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence.

Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do. Together, we are not just advancing technology; we’re building a community committed to safeguarding a safer and more connected world.

This Senior Data Scientist & Machine Learning Researcher is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focused problems. In this role you will be responsible for the technical development and leadership of AI/ML projects from initial idea scoping right through to final project delivery both in customer and internal domains. You will demonstrate novel thinking and propose new ideas for solving challenging problems while mentoring others on your project team to deliver towards your proposed solution.

Responsibilities

• Develop complex, novel data science solutions, contributing significantly to machine learning projects with minimal guidance.
• Brings experience in scoping, designing, and delivering data-centric solutions while working collaboratively across disciplines.
• Undertake research and applied AI/ML tasks on both customer and internal research projects.
• Provide technical leadership in small project groups.
• Generate ideas for new research directions.
• Advise on suitability of group research ideas based on previous experience.
• Mentor more junior team members within their project team and the wider SRG.
• Deliver AI/ML/Data Science solutions to broad range of problems in defence.
• Work with customers and internal stakeholders to determine appropriate technical approaches and do the technical development required for delivery.
• Prepared to present and undertake practical demonstrations of work internally in the team and to senior stakeholders with adaptability to audiences of different levels of technical expertise.

Required Skills & Experience

• BSc in Machine Learning, Data Science, Computer Science, Mathematics or related field.
• Experience coding in Python and associated ML packages (HuggingFace, TensorFlow, PyTorch).
• Have an established track record of delivering ML solutions to customers and internal stakeholders.
• Demonstrate deep understanding of AI/ML algorithms for different data types and tasks including Generative AI, NLP and computer vision, sufficient to be able to undertake research and development beyond existing literature.
• Experience of training and developing AI models including Large Language Models.
• Ability to produce high-quality scientific writing for internal & external stakeholders as well as academic publications.
• Experience of mentoring other team members and undertaking technical leadership on small projects or sub-parts of larger deliveries.

Desirable Skills & Experience

• Experience using robust ML pipelines, appropriate version control and environment management (e.g. venvs / Docker)
• Working knowledge of Linux systems, using basic commandline functionality
• Experience of deploying AI models in a scalable way for external users.
• Experience working with cloud services
• Experience of writing technical project proposals.

Benefits

• 25 days holiday + statutory public holidays, plus opportunity to buy / sell up to 5 days
• Contributory Pension Scheme (up to 10.5% company contribution)
• Company bonus scheme (discretionary)
• 6 times salary Life Assurance
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave

Work Culture

• 37hr working week, with an early 1.30pm finish Friday
• Remote, hybrid and site based working opportunities, dependant on your needs and the requirements of the role
• Flexible working culture that is output, not time spent at desk, focused. Formal flexible working arrangements can also be requested.
• Up to 5 paid days volunteering each year

RTX

Raytheon UK is a landed company and part of the wider RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon.

Supporting over 35,000 jobs across 13 UK sites, RTX is helping to drive prosperity. Each year our work contributes over £2.7bn to the UK economy and offers a wealth of opportunities to 4,000 suppliers across England, Scotland, Wales and Northern Ireland. We’re investing in all corners of the country, supporting 29,040 jobs in England, 3,040 in Northern Ireland, 1,900 in Scotland and 1,600 in Wales.

Site Reliability Engineer Bristol, Hybrid (3 days onsite, 2 from home) Up to £95K & Great Benefits

Ready to take on high-impact engineering challenges that actually matter? Want to work on mission-critical systems used across the UK s most high-profile government organisations?

This is your chance to join TwinStream a team of elite engineers who built their careers cracking complex cross-domain problems, and then built a company to do it even better.

We re growing fast. Demand for our services is skyrocketing. And now we re looking for a Site Reliability Engineer who s ready to step into a role with real ownership, real influence, and real opportunities to innovate.

Why You ll Love This Role

As our new SRE, you ll be right at the heart of our evolving cloud and on-prem platforms. This isn t a keep the lights on job it s a role where you ll shape infrastructure strategy, partner closely with software and systems teams, and push performance, reliability, and automation to the next level.

You’ll help us evolve observability, enhance delivery pipelines, eliminate toil, drive reliability metrics, and make smart technical decisions that keep our systems robust as we scale.

If you love solving gnarly problems, improving how things work, and innovating at speed this is the role for you.

Key Responsibilities of the Site Reliability Engineer:

• Collaborating with Software Engineers to improve subsystem reliability and performance
• Partnering with System Administrators to automate toil and cut down alert noise
• Taking observability to the next level find issues before they hit the business
• Supporting development environments to boost speed and quality
• Researching & evaluating tools to guide key buy-vs-build decisions
• Deepening your expertise across multiple technical and business domains
• Expanding your knowledge of diverse tech stacks and platforms

What You Bring

• Modern configuration management tools (Ansible, Chef or similar)
• Terraform
• Docker containers & orchestration (Kubernetes, OpenShift, Docker Swarm)
• CI/CD tooling (Jenkins or similar)
• Monitoring/metrics stack (InfluxDB, Prometheus, Grafana)
• MQ messaging (RabbitMQ or other AMQP solutions)
• SQL & relational databases
• Linux administration & shell scripting
• Network security fundamentals
• Cloud hosting (ideally AWS: EC2, RDS, S3, Lambda)

Bonus points for:

• Experience with Java, Go, Python or similar
• Knowledge of cross-domain principles & tech
• Service management experience
• Hands-on observability implementation
• Proven ability to reduce downtime with smart reliability metrics

Why You ll Love Working at TwinStream

• Competitive salary, £65k - £95k DOE
• 8% employer pension contribution
• Private medical healthcare (including dental & optical for the whole family)
• Flexible working culture
• Learning & development owned by YOU
• Electric vehicle salary-sacrifice scheme
• 28 days holiday + bank holidays
• Regular team events, plus Christmas & summer parties
• Life assurance & cycle-to-work scheme

Security Clearance

You ll need to be eligible for SC and/or DV clearance. Any offer will be subject to successful security screening.

Ready to engineer impact?

Apply now and shape the future of secure, high-performance cross-domain systems.

Our Principal Data Scientist & Machine Learning Researcher sits within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focused problems. In this role you will work with high levels of autonomy and be responsible for the design, planning and technical leadership of multiple AI/ML projects. You will help lead and set technical and strategic direction for the group, support with customer and stakeholder engagement and deliver technical solutions on internal and external projects.

At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence. Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development.

Hybrid role: 3 days a week at our site(s) or customer site min

Must be eligible and willing to gain SC & eDV clearance

Responsibilities

• Support the Head of Data Science & Machine Learning using your experience to contribute to the group strategy and stakeholder engagement.
• Bring ideas for novel research that will drive competitive advantage in across our customer community.
• Work with autonomy to develop complex, novel data science solutions.
• Support in triaging and responding to opportunities, aligning to the group and wider business strategies.
• Design and deliver data-centric solutions while working collaboratively across disciplines.
• Technical delivery of research and applied AI/ML tasks on both customer and internal research projects.
• Provide technical leadership across multiple projects.
• Manage more junior team members across the SRG.
• Deliver AI/ML/Data Science solutions to broad range of problems in defence.
• Work with customers and internal stakeholders to determine appropriate technical approaches and do the technical development required for delivery.
• Prepared to present and undertake practical demonstrations of work internally in the team, to senior stakeholders and at conferences with adaptability to audiences of different levels of technical expertise.

Required Skills & Experience

• Strong experience of delivering novel ML solutions to customers and internal stakeholders
• Excellent coding practice using Python and associated ML packages (HuggingFace, TensorFlow, PyTorch), following best practices
• Experience developing robust ML pipelines with MLOps tools for model training, monitoring and deployment
• Experience of appropriate version control and environment management (such as venvs or Docker)
• Experience of writing technical project proposals
• Experience of managing teams either line management or technically
• Expert knowledge of AI/ML algorithms for different data types and tasks including Generative AI, NLP and computer vision, sufficient to be able to propose research beyond existing literature
• Experience of training and developing AI models including Large Language Models
• Ability to produce high-quality scientific writing for internal & external stakeholders as well as academic publications
• Ability to work with high levels of autonomy, with awareness of appropriate business policies and strategy to dictate your actions

Desirable Skills & Experience

• Experience of deploying AI models in a scalable way for external users.
• Experience developing supporting systems for AI deployments (e.g. backend databases, front end UIs)
• Working knowledge of Linux systems, using basic commandline functionality (e.g. AWS CLI, Docker CLI, Linux commands like ssh, ls, cd)
• Experience working in Cloud services

Benefits

• 25 days holiday + statutory public holidays, plus opportunity to buy and sell up to 5 days
• Contributory Pension Scheme (up to 10.5% company contribution)
• Company bonus scheme (discretionary)
• 6 times salary Life Assurance
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave
• Private Medical Insurance (dependant on grade)

Work Culture

• 37hr working week, with an early 1.30pm finish Friday
• Flexible working culture that is output, not time spent at desk, focused. More formal flexible working arrangements can also be requested.
• Up to 5 paid days volunteering each year

RTX

Raytheon UK is a landed company and part of the wider RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon.

Supporting over 35,000 jobs across 13 UK sites, RTX is helping to drive prosperity. Each year our work contributes over £2.7bn to the UK economy and offers a wealth of opportunities to 4,000 suppliers across England, Scotland, Wales and Northern Ireland. We’re investing in all corners of the country, supporting 29,040 jobs in England, 3,040 in Northern Ireland, 1,900 in Scotland and 1,600 in Wales.

Role Overview

The Software Engineer (R&D) designs, develops and delivers robust, scalable software solutions while also originating and assessing new innovations. The role requires strong computer science foundations, the ability to think abstractly, and experience building performant core algorithms.

The Software Engineer (R&D) works independently on complex technical tasks, collaborates effectively within Agile teams, and contributes across the full software development lifecycle. They are expected to mentor junior Engineers, contribute to architectural direction, and drive quality and innovation through best practices.

In addition to core product development, the role may involve:

• R&D investigations and prototyping that feed into future products
• On project basis work within a two-week sprint Scrum framework
• Professional services projects for specific customers
• Supporting customers through advanced technical problem-solving and bug resolution

Key ResponsibilitiesR&D and Innovation

• Originate, prototype and assess new innovations
• Think abstractly to explore algorithms and approaches for calculating distances, performance and accuracy.
• Explain problems addressed and approach to them, listen and appreciate feedback
• Prototype ideas in code, design and run appropriate performance and correctness tests (including O(n) analysis).
• Call time on investigations that are not producing results and refocus effort where appropriate.
• Roadmap architectural approaches that address diverse and sometimes unconnected customer feedback.
• Ensure R&D work remains focused on clear goals and outcomes.
• Document findings thoroughly and hand over validated work to the wider development team.
• Demonstrable knowledge and experience in data mining, machine learning (including deep learning), generative AI (e.g., with Retrieval-Augmented Generation), and reinforcement learning.

Software Development & Delivery

• Design, develop, test and maintain software applications using Java (8+), XSLT, XML, JSON, JavaScript, TypeScript and React.
• Develop and maintain automated tests to ensure high coverage, performance and reliability.
• Take ownership of feature development from concept through deployment.
• Write clean, maintainable and well-documented code following industry best practices.
• Submit code for CI pipelines, resolve broken builds, and actively participate in debugging and optimisation.
• Participate in code reviews, providing constructive feedback and mentoring junior Engineers.
• Data Science algorithms and techniques.
• Probability & Statistics.
• Parsing frameworks.
• Deeper knowledge of AI techniques beyond assembling predefined components.
• Background in theory of the techniques and maths that AI uses.

Collaboration & Agile Ways of Working

• Actively participate in Agile ceremonies including Daily Scrum, Sprint Planning, Reviews and Retrospectives.
• Work closely with Product Management to understand customer feedback and prioritise areas for innovation.
• Collaborate across Engineering, Product and R&D to define and deliver new features.
• Contribute to backlog refinement and continuous improvement of team processes and technical practices.

Customer & Operational Support

• Collaborate with internal support teams to deliver accurate solutions and improve customer satisfaction.
• Maintain accurate records of development work, R&D investigations, failed attempts and time spent.
• Keep JIRA issues and project documentation up to date.

Required Skills & Experience

• Degree in Computer Science, Software Engineering, or equivalent professional experience.
• 3+ years experience in a major programming language, with strong experience writing core algorithms.
• Advanced proficiency in Java (8+).
• Good knowledge of XSLT and data transformation techniques.
• Experience working with structured data formats such as XML and JSON.
• Strong understanding of algorithms, data structures and performance analysis (O(n .
• Experience with REST APIs, SaaS architectures and cloud infrastructure (preferably AWS).
• Hands-on experience with Git, Bitbucket, JIRA and Confluence.
• Familiarity with Agile/Scrum methodologies.
• Ability to work independently, lead technical initiatives, and collaborate effectively within teams.

Desirable Experience

• XML comparison, transformation or document-processing systems.
• CI/CD pipelines and automated testing frameworks.
• Containerisation technologies such as Docker or Kubernetes.
• Data science algorithms, probability and statistics.
• Parsing frameworks.
• Deeper understanding of AI techniques and their mathematical foundations.
• Experience with JavaScript, TypeScript and React. JF1

Day Rate: £650 (Inside IR35)
Contract Length: 12 months
Clearance Required: UK SC and willing to undergo DV

Location - 4 days on site - Gloucester / Hereford

An opportunity is available for an experienced Integration Engineer to join a high-profile defence programme, working on the integration of mobile and server-based systems within a secure environment.

The Role

You will operate as a senior technical contributor, acting as a bridge between customers, software development teams, and third-party suppliers. The focus is on integrating, configuring, and supporting Linux-based systems and containerised applications, alongside mobile and Android platforms.

You should be comfortable working across the full system landscape, understanding software at a broad level, and contributing to solution design, configuration, and troubleshooting.

Key Responsibilities

• System administration of multiple Linux machines running critical services
• Managing and supporting container-based applications (Docker)
• Certificate management
• Setup and configuration of applications and services on Linux systems
• Setup and configuration of applications on Android devices
• Integrating mobile and server-based systems
• Debugging configuration and networking issues across systems
• Administering mobile device management (MDM) platforms
• Eliciting user requirements to define device configurations and setup processes
• Producing clear documentation for configurations and processes

Required Skills & Experience

• Proficiency in Linux system administration
• Experience with containerisation technologies (Docker / Podman)
• Comfortable working with Android devices
• Basic understanding of networking and secure systems
• Ability to write software (experience with Java and/or Kotlin desirable)
• Excellent problem-solving, communication, and documentation skills

Ideal Profile

• Keen to work hands-on with Linux-based systems and containerised environments
• Broad understanding of software development and system design
• Comfortable operating as a senior engineer on projects and engaging directly with customers

Interview Process

• Single-stage interview via Microsoft Teams

If you are an experienced Integration Engineer seeking a long-term, high-impact contract within a secure environment, please apply with your latest CV.

Python Software Engineer with strong container orchestration and a passion for machine learning is sought by a high growth scale up based near Cheltenham.

Working at the forefront of defence and national security innovation this Python Software Engineer will work within a collaborative engineering function to build bleeding edge AI/ ML enabled software solutions that keep millions of people safe.

This role would suit software engineers with experience working in an R&D/ innovation focussed environment who are looking for more end to end project exposure and fast track progression opportunity

This Python Software Engineer based near Cheltenham should have most of the following key skills:

• Solid Python engineering skills
• Containerisation (docker, Kubernetes)
• Solid general Machine learning skills - PyTorch,Tensorflow etc
• NoSQL database experience
• Experience working in R&D or innovation focused engineering teams would be a plus
• Front end skills would be useful - Angular, React etc
• An active SC clearance would be a plus but not essential

This Python Software Engineer will receive

• Starting salary of up to £75,000
• Hybrid working (2 days a week in the office)
• Extensive personal development scheme
• 25 days holiday
• 10% private pension scheme
• Bonus
• Private healthcare
• Truly autonomous, collaborative culture with extensive growth potential
• Regular remuneration reviews

So if you are a Python Software Engineer who wants to join a market leading business with innovation at its core please apply now to be considered

Cheltenham - Hybrid - Permanent
Research & development, generative AI, machine learning, LLM, Python, NoSQL, PyTorch, Tensorflow, Docker, Kubernetes

Hybrid/ Central Bristol
60-75,000 + 10% bonus

We’re hugely excited to be recruiting exclusively for a Full Stack Software Engineer, to join a startup-style team within a global, data-driven organisation. Think fast moving, big budget, heaps of autonomy, and a breakaway type of culture that is committed to pushing technical boundaries.

A typical Day to Day

You’ll work across frontend and backend, building new features, enhancing existing ones, and exploring AI-driven capabilities like automation, predictive analytics, and intelligent decision-making tools. Collaboration with product, data, and global teams is key - you’ll have the freedom to experiment, innovate, and make a direct impact.

The Tech You’ll Use:

Their backend is predominately Python (Django & FastAPI) with JavaScript front end (bonus points if you’re a Vue pro!), you’ll be pulling from a SQL Database and predominately Docker K8’s DevOps set up.

Is it for you?

You’ll likely be someone that is motivated by using cutting edge AI derived tech, but also has no qualms in explaining jargon to non-technical folk! This is at times a semi outwards facing role, as you’ll work with the wider group to help implement the platforms solutions. You’ll likely have 4+ years commercial of Full Stack Software Engineering experience.

Sound a bit of you? Great! Please apply with an up to date CV and we can take it from there

Role: Full Stack Developer - .Net/C# - Angular

Hybrid: 1 days in Office / 4 days home

Location: Somerset / Milton Keynes / Bristol

Salary/Package: 40k - 50K

Health Cash Plan

Access to a Benefits Portal and Employee Assistance Program

EV Car and Cycle to work scheme

Flexible weekly wellbeing time

Dedicated Volunteering Time

25 days holiday rising to 30, plus Bank Holidays

Comprehensive induction and training program

General:

Our client is the UK’s leading provider of electronic and paper document distribution services, by providing our service to the NHS, Local Government, and a wide range of Commercial organisations, we make a real difference to patients, citizens and businesses through our innovative use of communication technology. This is a fantastic opportunity for someone to join our Testing Team in a rapidly growing company.

You’ll join our Research & Development team to design, build, and maintain full-stack applications using Angular on the front end and .NET (C#) on the back end.

You’ll collaborate closely with the Product and Testing teams to deliver new features from concept to completion, resolving defects, and enhancing overall system performance. Exposure to AWS and Microsoft Azure is desirable as we continue to modernise and expand our cloud footprint.

The roles & responsibilities for this position will evolve over time as you gain more experience.

Profile:

You’re a pragmatic developer who enjoys shipping clean, well-tested code and iterating based on feedback. You value teamwork, embrace change, and contribute ideas that improve the product and the way we work. You understand secure development practices and handle confidential information with care.

Duties:

The primary activities are:

Build new features across the stack (Angular, .NET/C#, REST) to clear specifications and acceptance criteria as part of a mature Scrum team

Deliver high quality, maintainable software with unit testing and clear documentation

Review pull requests, give/receive constructive feedback, and help raise development standards

Investigate and resolve functional and performance issues; contribute to root-cause analysis and remediation

Maintain and upgrade third-party libraries, frameworks, and SDKs

Essential Experience:

You will have at least 12 months commercial development experience, and be required to demonstrate essential skills within:

Angular

.NET

You will also demonstrate proficiency with:

Front end: Angular, responsive UI, accessibility basics (WCAG)

Back end: .NET (C#), asynchronous programming, dependency injection

Quality: Unit testing - Jest/NUnit or similar, code review

APIs & data: RESTful design, OpenAPI/Swagger, NoSQL databases

Ways of working: Collaborating with product/platform/developers/testers, strong written and verbal communication, attention to detail, and handling confidential information sensitively

Team skills: Working autonomously while communicating progress; respectfully challenging the status quo with a critical, evidence-based mindset

Desirable Experience:

Developing web solutions for Amazon Web Services (AWS) and/or Microsoft Azure

Experience with Docker and container orchestration tools

Proficiency with Github Actions or Azure DevOps

Working Relationships:

You will work closely with the Testing Teams to perform all planned and reactive tasks, escalating to your Line Manager when potential issues are identified. Cross-functional collaboration with Product, Support, and DevOps is expected.

Special/Additional Working Conditions:

You will be working at either our Wellington, Bristol or Milton Keynes office.

All offices are fully air-conditioned with a modern and spacious open-plan layout. The Head Office is situated close to J26 of the M5 where there is free on-street parking.

INDIT

Planet Recruitment acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. Planet Recruitment is an Equal Opportunities Employer.

By applying for this role your details will be submitted to Planet Recruitment. Our Candidate Privacy Information Statement explains how we will use your information.

Only candidates with the relevant skills and experience will be contacted after application, if you do not hear back from us within 7 days you have unfortunately been unsuccessful in your application.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person’s gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and abilities to perform the duties of the position.

Full-Stack .NET Developer - Leading SaaS Platform
Salary: Up to 55,000 per annum
Location: Bristol (hybrid - 1-2 office visits per month)

CPS Group are once again partnering with a rapidly expanding SaaS organisation following a successful placement earlier this year. Due to strong growth and ongoing investment in their technology, they’re looking to add another talented Full-Stack .NET Developer to their agile development team.

The Role

You’ll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers, you’ll contribute to all stages of development - from concept and design through to deployment and continuous improvement.

Delivering high-quality, maintainable code that meets performance and security standards.
Collaborating with designers, developers, and stakeholders in an agile team environment.
Participating in sprint planning and design sessions, contributing to technical decisions.
Troubleshooting and resolving complex technical challenges quickly and effectively.
Continuously improving code quality through testing, reviews, and best practices.

Skills & Experience:

• .NET (C#, ASP.NET)
• Angular
• REST/API Development
• SQL Server
• TypeScript, JavaScript, HTML, CSS
• Strong understanding of Agile delivery (Scrum or Kanban)
• Experience with Azure services (e.g. Cosmos DB, Microservices, Docker, NServiceBus)
• Familiarity with cloud-native or distributed architectures

Benefits:

• Salary up to 55,000 per annum
• Hybrid working (1-2 visits per month to the Bristol office)
• 25 days annual leave (plus bank holidays), rising with service
• Birthday leave + extra days for length of service
• Private healthcare & subsidised dental care
• Company pension contribution
• Cycle-to-work scheme & on-site gym
• Option to buy additional annual leave

If you’re a Full-Stack .NET Developer seeking a meaningful role with flexibility and growth, we’d love to hear from you.

To discuss this opportunity in more depth, please contact Sam John at CPS Group.

By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed)>