We are hiring a Full Stack Software Engineer with a strong test-driven development (TDD) background to help build the next generation of a mission-critical cybersecurity and communications platform used globally.
This is a hands-on role focused on designing and delivering partner API integrations across a complex security ecosystem - including endpoint protection, network security, user awareness tooling, and monitoring systems.
You ll work as part of a collaborative product team alongside full stack and front-end developers, supported by QA and DevOps, reporting into engineering leadership.
Why This Role Matters
The next-generation platform will provide customers with a unified view of security across distributed environments. As integrations expand, maintaining a high bar for quality, reliability, and test coverage is critical.
This role will also play a key part in strengthening TDD practices across the team - leading through code and delivery.
What You ll Do
Requirements (Must Have)
Nice to Have
Benefits
If you take pride in writing well-tested, production-grade code and want to contribute to building critical cybersecurity software used at global scale, we d love to hear from you.
Full Stack Engineer (TDD / C# / JavaScript)
We are looking for an experienced AI Product Engineer to help build and scale AI-powered features within a modern product environment. This is a hands-on engineering role focused on integrating commercial AI APIs into a .NET ecosystem not building models from scratch.
You will design, develop, and deliver production-ready features that rely on services such as Anthropic Claude, AWS Bedrock, and OpenAI. AI-assisted development will be a core part of your workflow, and you will help shape how it is adopted across the engineering team.
This role is ideal for someone who has already worked in a team where AI was embedded into real products and can bring proven patterns, practices, and standards into a new environment.
What You ll Do
Must Have
Nice to Have
Not the Right Fit If You
If you re passionate about building real-world AI features and want to work in a team where AI is part of the engineering craft not just a concept we d love to hear from you.
Benefits:
AI Product Engineer
We are looking for an experienced AI Product Engineer to help build and scale AI-powered features within a modern product environment. This is a hands-on engineering role focused on integrating commercial AI APIs into a .NET ecosystem not building models from scratch.
You will design, develop, and deliver production-ready features that rely on services such as Anthropic Claude, AWS Bedrock, and OpenAI. AI-assisted development will be a core part of your workflow, and you will help shape how it is adopted across the engineering team.
This role is ideal for someone who has already worked in a team where AI was embedded into real products and can bring proven patterns, practices, and standards into a new environment.
What Youll Do
Must Have
Nice to Have
Not the Right Fit If You
If youre passionate about building real-world AI features and want to work in a team where AI is part of the engineering craft not just a concept wed love to hear from you.
Benefits:
AI Product Engineer
Technical Support Engineer - Service Management
We are looking for a skilled and customer-focused Technical Support Engineer to join our Service Management team. You’ll be at the forefront of customer interaction-delivering exceptional support experiences through a combination of technical expertise, communication, and empathy.
Hybrid working
Inside IR35
Experience & Technical Skills
Key responsibilities
Core Skills & Attributes:
Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.
Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation
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We’re looking for a Senior Applied AI Engineer to design and deliver production-grade AI-powered features within a modern .NET product environment.
This is a hands-on engineering role focused on applying AI in real systems — not training models. You’ll work with commercial AI platforms such as Anthropic Claude, AWS Bedrock, and OpenAI to build reliable, scalable, and observable features that ship to users.
You’ll also play a key role in shaping how AI is adopted across the engineering team — setting standards, introducing tooling, and leading by example through high-quality, AI-assisted development practices.
This role suits someone who has already successfully integrated AI into production products and can bring proven patterns into a growing team.
What You’ll Do
Must Have
Nice to Have
Not the Right Fit If You
Why Join Us
If you want to build high-quality, production AI systems and help shape how modern engineering teams apply AI in practice, we’d love to hear from you.
Senior Applied AI Engineer (.NET)
Software Engineer (.NET) We’re looking for a skilled Software Engineer to join our growing technology team, where you’ll play a key role in designing, building, and supporting robust software applications. This role offers the opportunity to work on moderately complex systems, collaborate with experienced engineers, and contribute to solutions used by a wide range of stakeholders. The Role You will be responsible for the end-to-end design of software applications or components, applying agreed engineering standards, patterns, and tools. Working as part of a collaborative team, you’ll help design components of larger systems, define user and system interfaces, and contribute to design decisions by evaluating options and trade-offs. You’ll also take part in peer reviews and stakeholder presentations as required. Key Responsibilities \* Design and develop complex software applications and components \* Support and maintain existing customer systems through bug triage and resolution \* Use approved code repositories and branching strategies to manage source control \* Produce documentation that meets standards across all stages of the software development lifecycle \* Adhere to defined coding standards and best practices \* Ensure all code is stored in OSL-approved source control systems \* Contribute to reviews of team output and assist with presenting work to stakeholders Skills, Experience & Qualifications \* Deep understanding of Microsoft .NET C# and .NET Core \* Experience working with MySQL, MariaDB, or other data stores \* Understanding of containerisation technologies and message queues (e.g. RabbitMQ) \* Exposure to Python, C++, image processing, and geospatial calculations \* Familiarity with Azure DevOps for work management, source control, branching, and pull requests \* Understanding of agile delivery practices, including stand-ups, sprint planning, and retrospectives \* Working knowledge of Linux \* Strong analytical skills with the ability to collaborate effectively within a team
DevOps Engineer
Guildford offices (Next to train station) and competitive salary depending on experience
Stratospherec are working with a Guildford based Enterprise Management software company who have thousands of clients across the UK and Europe.
This DevOps Engineer is a new position in their growing DevOps team of engineers and this role is integral to the continued success of the TechOps team as a central function that underpins the effective development and running of the software as a service that this company supplies to their customers.
We are looking for candidates with 2 years or more commercial DevOps Engineering experience ideally in an AWS, Linux, NoSQL environment and with Python, Java or Bash Scripting experience.
DevOps Engineer - Role Responsibilities:
You will need Skills in some of the following:
Package offered:
If this is job opportunity might be of interest then please apply for immediate interview.
Senior PHP Developer
Salary: 45,000 - 50,000
Location: Barnsley/Hybrid
Benefits/Perks: 31 days holiday Paid Training Free parking
The Opportunity
Join a well-established, growing technology services company with a strong product suite and fantastic work culture.
As a Senior PHP Developer, you’ll be part of a collaborative tech team with real ownership and long-term growth potential.
The Role
Tech Stack
About You
APPLY NOW to be considered for interviews!
Senior PHP Developer - PHP - Software Developer - JavaScript - Laravel - Linux - AWS - MySQL - MariaDB - Developer - API - Vue.js
The Opportunity:
My client are a charity organisation currently looking for a Senior Software Engineer on a permanent basis. Working as the Senior Software Engineer, you will be responsible for developing and maintaining the digital platforms, from their main website to web-based tools and applications that support their beneficiaries and staff.
You ll work closely with communications, data, and project teams to ensure online presence is reliable, engaging, and inclusive. You will balance hands-on coding with strategic thinking, identifying opportunities to improve user journeys, accessibility, and the overall digital experience.
Skills and Experience:
Role and Responsibilities:
Applications:
Please contact John here at ISR to learn more about our client who are continuing to grow across the education sector here in Devon?
We re looking for a Senior Applied AI Engineer to design and deliver production-grade AI-powered features within a modern .NET product environment.
This is a hands-on engineering role focused on applying AI in real systems not training models. You ll work with commercial AI platforms such as Anthropic Claude, AWS Bedrock, and OpenAI to build reliable, scalable, and observable features that ship to users.
You ll also play a key role in shaping how AI is adopted across the engineering team setting standards, introducing tooling, and leading by example through high-quality, AI-assisted development practices.
This role suits someone who has already successfully integrated AI into production products and can bring proven patterns into a growing team.
What You ll Do
Must Have
Nice to Have
Not the Right Fit If You
Why Join Us
If you want to build high-quality, production AI systems and help shape how modern engineering teams apply AI in practice, we d love to hear from you.
Senior Applied AI Engineer (.NET)
Lead Engineer Location: Reading area Hybrid: 2 times a week in office Security Clearance: Must currently hold, or have recently held, SC or NATO Secret clearance Salary: £80k - £90k + bonus + healthcare We’re looking for a Lead Engineer to join a business working on complex, real-world, data heavy software solutions. This is not a pure architecture role, and it is not a people-management position from day one. It is a senior technical leadership role for someone who is still deeply hands-on, can drive delivery, bring clarity to ambiguity, and act as a trusted right hand to senior leadership. You’ll be joining a technically strong team working on a core product in a flat, low-hierarchy environment. The role is ideal for someone who enjoys solving hard engineering problems, taking ownership, and helping experienced teams move faster with better structure, accountability, and direction. The role You’ll play a key part in shaping technical direction, improving engineering effectiveness, and helping unblock a busy, experienced team. There is already strong technical capability in the business, so this role is about adding leadership, decisiveness, and delivery focus. You’ll work closely with senior leadership, particularly the Head of Engineering, and become someone they can rely on to take ownership of key technical areas, challenge where needed, and help relieve pressure from existing bottlenecks. This is a role for someone who can hold the line on technical decisions, ask the right questions, guide engineers toward solutions, and operate confidently across both technical and non-technical audiences. What you’ll be doing \* Leading technically across a core product used in a complex, data-heavy environment \* Driving delivery, ownership, and accountability across engineering work \* Helping define technical direction across the short, medium, and longer term \* Partnering with senior leadership to bring clarity to priorities and decisions \* Unblocking engineers and supporting the team through difficult technical challenges \* Improving engineering maturity across areas such as performance, observability, and security \* Helping evolve ad hoc or early-stage tooling into robust production-grade systems \* Contributing to wider platform and architectural thinking, without being removed from delivery \* Communicating confidently with engineers, internal stakeholders, and senior external parties What they’re looking for \* Strong background as a hands-on software engineer with clear technical leadership experience \* Proven track record of getting things done and taking ownership in complex environments \* Comfortable operating with responsibility, pace, and ambiguity \* Able to challenge constructively, push back when needed, and influence without relying on formal authority \* Strong communicator who can translate complex technical ideas clearly to different audiences \* Experience guiding teams technically and setting direction across quarterly to longer-term horizons Ideal Experience / Background: \* Experience helping systems scale through startup, growth, and maturity phases \* Improving engineering standards, reliability, security, and observability \* Building or improving data platforms such as data lakes \* Exposure to ML pipelines or workflow-driven engineering environments \* Strong applied understanding of mathematics and physics in engineering contexts \* Ability to work through complex, practical problem-solving challenges rather than purely academic theory Technical environment The stack is flexible and capability matters more than exact tooling, but the current environment includes: \* Backend: C# / .NET \* Database: MariaDB - MySQL acceptable \* Frontend: Vue.js Highly relevant background Candidates with experience in the below areas are likely to stand out: \* Geospatial data \* Time-series or near real-time systems \* Sensor data processing \* Radar, GPS, RF, or GNSS-based systems \* Satellite imagery, LiDAR, or geospatial intelligence Why this role stands out This is an opportunity to work on a problem space that is technically demanding, fast-moving, and genuinely meaningful. The work has a direct link between software, engineering, and real-world impact. It suits someone who enjoys deep technical challenges, wants to solve difficult problems properly, and is motivated by building systems that matter. Essential requirement Due to the nature of the work, you must currently hold or recently have held SC or NATO Secret clearance. You must also be commutable to Reading and willing to work from the office a minimum of 2 days a week, however this will be dependant on projects and workload. If you're interested in this role and want to find out more about the business and their products, please apply directly to this advert, and the team will be in contact
\* Exeter, Devon (Hybrid-working – x1 or 2 days in office) \* Up to £55,000 per year \* Plus excellent company benefits Private Healthcare, Pension, etc. The Opportunity: My client are a charity organisation currently looking for a Senior Software Engineer on a permanent basis. Working as the Senior Software Engineer, you will be responsible for developing and maintaining the digital platforms, from their main website to web-based tools and applications that support their beneficiaries and staff. You’ll work closely with communications, data, and project teams to ensure online presence is reliable, engaging, and inclusive. You will balance hands-on coding with strategic thinking, identifying opportunities to improve user journeys, accessibility, and the overall digital experience. Skills and Experience: \* Strong front-end development skills using HTML5, CSS3, JavaScript (ES6+). \* Experience with front-end JavaScript, vanilla/jQuery or frameworks such as React/Vue.js/Angular. \* Proficiency in PHP for building robust, secure, and maintainable applications. \* Understanding of database design and management (MariaDB, MySQL, PostgreSQL). \* Experience with RESTful APIs and third-party integrations. \* Degree in Computer Science, Web Development, Software Engineering or equivalent experience. Role and Responsibilities: \* Design, build, and maintain user-friendly web applications and websites aligned with the charity’s goals. \* Develop and maintain APIs and integrations with third-party systems (e.g., CRMs, donation platforms). \* Ensure accessibility, security and performance standards are met across all digital products. \* Work collaboratively with non-technical colleagues to translate needs into practical digital solutions. \* Implement and manage hosting, deployment and version control processes (e.g., GitHub, Plesk, Linux). \* Troubleshoot, test and maintain existing systems to improve performance and reliability. Applications: Please contact John here at ISR to learn more about our client who are continuing to grow across the education sector here in Devon?