Make yourself visible and let companies apply to you.
Roles
Contract Full Stack Engineer Jobs
Overview
Find top CONTRACT Full Stack Engineer jobs with Haystack – your go-to IT job board for flexible, high-paying contract roles. Explore the latest opportunities for skilled full stack engineers ready to tackle front-end and back-end development projects. Start your contract career today!
SC Cleared Senior Software Engineer
Experis
UK
In office
Senior
£750/day - £820/day
RECENTLY POSTED
+1

Job Title: SC Cleared Senior Software Engineer
Location: Farnborough, Malvern or Portsmouth
Duration: 6 months with possible extension
Rate: Up to £820 per day via an approved umbrella company
Must be willing and eligible to go through the SC Clearance process

Are you a talented and motivated Software Engineer with a passion for delivering innovative solutions? Our client, a reputable organisation supporting maritime test and evaluation facilities, is hiring for a Senior Software Engineer to join their dynamic engineering team. This is an exciting opportunity to work on modernising critical systems and contribute to cutting-edge projects in a collaborative environment.

What you’ll be doing:

Supporting the maintenance and development of new systems to enhance maritime test and evaluation capabilities.
Designing, developing, integrating, testing, and delivering complex real-time software solutions.
Leading technical tasks and collaborating effectively with stakeholders, colleagues, and customers.
Ensuring coding standards are maintained through code reviews and static analysis.
Managing change control and configuration management processes.What you’ll bring:

Strong problem-solving and engineering skills with a solid understanding of the software development lifecycle.
Experience in C++ or Java programming on Linux or Windows platforms.
Proven ability to lead technical teams and manage complex projects.
Knowledge of coding standards, change control, and configuration management systems.
Excellent communication skills, capable of working effectively in diverse teams and with stakeholders.Desirable skills:

Experience in defence or related sectors.
Knowledge of digital signal processing (DSP) and Data Distribution Service (DDS).
Java GUI programming experience.
Familiarity with Agile practices such as Scrum, CI/CD, TDD, BDD.
Experience with Atlassian tools like Jira, Confluence, and BitBucket.Qualifications:

Degree in Computer Science, Software Engineering, or a related field, or equivalent relevant experience.
Extensive software development experience in complex systems.Join our client’s team and be part of innovative projects that make a real difference. If you meet these criteria and are ready for your next challenge, we’d love to hear from you!

Apply now to take the next step in your career

Senior Software Engineer
LANCESOFT LTD
Luton
Hybrid
Senior
Private salary
RECENTLY POSTED
  • Location:Brick Lane, London
  • Days in the Office:2 days per week
  • Job Title:Senior Engineer
  • Length of Contract:6 months, with potential extension

Key Skills:

  • Work embedded in a cross-functional team with software developers, technical product owners and testers all working together towards common goals to develop JVM applications using Test Driven Development and Pair Programming
  • Drive the design and implementation of our systems, knowing the context and why we are implementing what we are implementing, whilst always looking to improve our systems and ways of working
  • Mentor and coach other engineers
  • A willingness to pair program

Must-Haves:

  • Strong verbal communication and collaboration skills
  • In-depth knowledge and hands-on experience in a cross-functional, agile development team
  • Enthusiasm for code development and education in this area

Nice-to-Haves:

  • Experience in pair programming
  • Proficiency in idiomatic Kotlin for application development

Experience:

  • Extensive knowledge of Java programming language (5 years+)
  • 5+ years practical experience in test driven development

AI Integration:

  • We have an AI special interest group and are adopting AI based on individual context
Python Full Stack Developer
Syntax Consultancy Ltd
Leeds
Hybrid
Mid - Senior
£550/day - £600/day
RECENTLY POSTED
+4

Leeds (Hybrid)

6 Month Contract

£(Apply online only)/day (Inside IR35)

Python Full Stack Developer needed for a 6 Month Contract in Leeds (Hybrid). Start ASAP ideally in March 2026.

Hybrid Working - 3 days/week remote (WFH), and 2 days/week working on-site in the Leeds office.

A chance to work with a leading global IT transformation business specialising in large-scale Government projects.

Key experience, responsibilities + tasks:

Leading the design + development of complex applications using Core Python, and web frameworks like Flask + Django.

Strong Python development expertise, and strong leadership skills, including the ability to drive development projects, and mentor junior developers.

Front-end development using Vue.js, JavaScript, CSS and HTML to create seamless user interfaces.

SQL Server database experience, including developing / optimizing SQL Server databases, data analysis, and efficient data storage / retrieval.

Familiar with AWS Cloud Services, Infrastructure as Code (IaC) tools like Terraform, serverless architectures + Docker containers.

Developing applications using event-driven programming paradigms + adhering to design patterns like Model View Template (MVT), and Model View Controller (MVC).

Mentoring junior developers in coding standards, Github version control, and code tracking.

Overseeing integration of various software components, and debugging and trouble-shooting applications.

Implementing best practice in software development, including exception handling, data structures + object-oriented programming (OOP).

Technical Environment: Full Stack, Python, Flask, Django, Vue.js, React, CSS, HTML, Agile methods, Design Patterns, Object Relational Mappers (ORMs), server-side templating languages, Unit/API testing, AWS, CI/CD

Research Software Engineer
EMBL-EBI
Saffron Walden
Hybrid
Mid - Senior
£75,000/day
RECENTLY POSTED
+5

Spatial Transcriptomics is a rapidly emerging field that combines the “what” of genomics with the “where” of imaging. To support this, the Functional Genomics team is partnering with the BioImage Archive to create a unified resource for this data.

You will join a unique, interdisciplinary project bridging these two world-leading teams. We are looking for a talented developer to build the “Spatial Transcriptomics Portal,” a greenfield resource that will support scientists worldwide to submit, find, explore, and reuse this complex multi-modal data.

Your role

The role will work across the full technical stack to architect and build a new platform from the ground up. You will act as the technical bridge between the genomic and imaging domains, designing systems that allow these distinct data types to be harmonised, validated, and visualised together.

Specific Responsibilities:

  • Portal Development:Design and implement the new Spatial Transcriptomics portal, including backend API services, frontend user interfaces, and supporting infrastructure.
  • Search & Discovery: Develop a shared and powerful search interface that allows researchers to discover datasets based on the rich biological metadata facets that accompany these experiments.
  • Data Flow & Validation: Design automated pipelines to validate incoming data against agreed standards (FAIR principles) and route submissions to the correct archival resources.
  • Data Conversion: Support the development of conversion pipelines to transform raw data files into cloud-native formats (e.g., OME-Zarr) optimized for visualization in the portal.
  • Visualisation Integration: Embed and integrate advanced spatial visualisation tools into the portal, ensuring users can seamlessly interact with high-resolution images and gene expression overlays.
  • System Integration: Act as the technical liaison between the BioImage Archive and Functional Genomics, as well as with central EMBL-EBI storage and search infrastructure teams, ensuring that the new portal integrates seamlessly with our existing high-performance systems.

You have

You should have a university degree in computer science, life sciences, or a related discipline and experience in a software development capacity.

Specific Experience:

  • Substantial experience developing full-stack web applications.
  • Solid experience with Java or Python for backend development.
  • Extensive hands-on experience with JavaScript and modern frontend frameworks (e.g., React).
  • Experience with Containerisation (Docker) and deploying applications to Kubernetes environments.
  • Experience configuring CI/CD pipelines (e.g., GitLab CI, Jenkins) for automated testing and deployment.
  • Experience working with databases (Relational or NoSQL) and designing data models.

Personal Attributes:

  • A strong affinity with the goal of EMBL-EBI to provide open data to the global scientific community.
  • Excellent communication skills, with the ability to bridge the gap between technical and scientific requirements.
  • A self-starter attitude, comfortable working on a greenfield project with evolving requirements.

You may also have

  • Experience designing data systems that operate at scale.
  • Experience working with biological data, particularly BioImaging or Genomics formats.
  • Experience with search infrastructure (e.g., Solr, Elasticsearch).
  • Familiarity with data standards or validation frameworks (e.g., JSON Schema, RO-Crate).

Apply now! Benefits and Contract Information

  • Financial incentives: depending on circumstances, monthly family/marriage allowance of £278 monthly child allowance of £336 per child. Non resident allowance up to £569per month. Annual salary review, pension scheme, death benefit, long-term care, accident-at-work and unemployment insurances

  • Hybrid working arrangements

  • Private medical insurance for you and your immediate family (including all prescriptions and generous dental & optical cover)

  • Generous time off: 30 days annual leave per year, in addition to eight bank holidays

  • Relocation package including installation grant (as applicable)

  • Campus life: Free shuttle bus to and from work, on-site library, subsidised on-site gym and cafeteria, casual dress code, extensive sports and social club activities (on campus and remotely)

  • Family benefits: On-site nursery, child sick leave, generous parental leave, holiday clubs on campus and monthly family and child allowances

  • Contract duration: This position is a 1 year project based contract

  • Salary: Monthly salary startingfrom £3,303 or 3,695 after taxbut excl. pension & insurances) + benefits (Total package will be dependent on family circumstances)

  • International applicants: We recruit internationally and successful candidates are offered visa exemptions. Read more on our page for international applicants.

  • Diversity and inclusion: At EMBL-EBI, we strongly believe that inclusive and diverse teams benefit from higher levels of innovation and creative thought. We encourage applications from women, LGBTQ+ and individuals from all nationalities.

  • Job location: This role is based in Hinxton, near Cambridge, UK. You will be required to relocate if you are based overseas and you will receive a generous relocation package to support you.

To apply, please submit a covering letter and CV via our online system. Applications will close on 18/03/2026.

Senior Software Engineer
Pioneer Selection Ltd
Multiple locations
Fully remote
Senior
£450/day
RECENTLY POSTED

Senior Software Engineer - (9 month contract)

Salary: Negotiable
Shift: Days Mon-Fri
Location: Remote - Can live anywhere

We are recruiting for an innovative market leader within the industry who are a major player in their field, miles ahead of the competition. This is an opportunity for an experienced Software Engineer to showcase their skills across multiple state-of-the-art automated facilities within the UK. You ll be based from home and will be focused on software development and JAVA development for highly automated distribution factories across the UK.
The Senior software engineer will be involved in some high level software development projects within automated warehouse environments.

Non Negotiable skills required for the Senior Software Engineer

  • 5 years minimum experience in JAVA development
  • Extensive software development experience
  • Understanding of distribution and automated warehouse environments
  • Strong interpersonal skills to liaise with site teams, colleagues, and management effectively.

The Senior Software Engineer will benefit from:

  • Competitive pay rate
  • Working for a highly reputable company
  • Remote working from anywhere in the UK

If you are interested in this role and feel that you have the right skills, then please click apply at the bottom of this advert.

For further details contact Chris Bacchus at Pioneer Selection Ltd, you automatically become eligible for our referral scheme.

You will receive £250 for every candidate we place in permanent employment who has been recommended by you. Terms and Conditions apply please see our website for further details.

Senior .Net Developer
Wiltshire Council
Trowbridge
In office
Senior
£45,000/day
RECENTLY POSTED
+2

ICT - Driving Technological Transformation We have an exciting opportunity to join our ICT department on a 2-year contract, working in the Projects and Programmes function, delivering new solutions for Wiltshire Council. As a Senior .Net Developer, you will deliver systems essential to the council. Working alongside others in the team and the wider organisation, you will develop and deliver solutions using Azure DevOps, .Net C# within Visual Studio and other software systems. You will create and customise business process flows, forms, reports, and update configurations. You will work to diagnose and fix issues in the system, so good problem-solving skills will be essential. We are looking for a candidate with effective communication skills with experience working in an in-house development team. Previous experience of source control using GIT, and database development using Microsoft SQL Server, alongside an understanding of JavaScript, HTML, and CI/CD pipelines, will be essential. A solid understanding of other technologies, such as developing Blazor apps, working in YAML, and using MAUI for developing mobile applications, would be an advantage. The successful candidate will work within an Agile development team and should be able to work independently and with others effectively. Why us? Wiltshire Council is a friendly, welcoming place to work, with a 'One Council' ethos. Thats why we focus on getting the things that matter to our people right. While we welcome applications from job seekers who require skilled worker sponsorship, we are not able to issue a defined certificate of sponsorship due to limitations in our sponsorship capacity. We understand that AI tools can support candidates in preparing job applications. However, at Wiltshire Council we value authenticity and encourage applicants to ensure their submissions genuinely reflect their own experiences, skills, and motivations.

Senior Full Stack Web Developer
EMBL-EBI
Saffron Walden
Hybrid
Senior
£75,000/day
RECENTLY POSTED
+10

Your role

This is an exciting opportunity to make a significant contribution to several world leading projects including:

  • Functional Annotation of Animal Genomes project
  • European Reference Genome Atlas
  • TREC
  • AEGIS

You will be responsible for support and development of software to handle data curation, coordination, validation, distribution and visualisation of agriculture, aquaculture and biodiversity data. You will work with large scientific communities to define and implement metadata standards, develop software to validate and improve data descriptions and develop, build new project specific portals, and extend, existing web data portalsto meet the specific needs of each consortium.

The data portals will include Application Programming Interfaces (APIs) and bespoke data visualisation and presentation solutions. You will also support efforts for the development of standardised containerised workflows and cloud platform integration.

As part of this team, you will have many opportunities to engage with data generators, project users, and collaborators, to which you will provide guidance and support on utilisation of the team’s software and support users to provide rich metadata descriptions.

You will work with a range of data archives at EMBL-EBI, including the ENA and BioSamples, to support each project and community in sharing and gaining access to well described, high quality sample and genomic data.

You have

  • A BSc or MSc in computer science or related fields
  • Expertise in Python, including popular Python libraries: NumPy, Pandas, PySpark and frameworks: Django, Django Rest Framework, FastAPI
  • Hands-on experience with both relational (e.g. PostgreSQL) and non-relational databases (e.g. Elasticsearch, Redis)
  • Extensive experience in data warehousing architecture, big data processing and ETL
  • Demonstrable expertise in Unix/Linux environments
  • Experience with GIT and working in collaborative software environments
  • Willingness to learn new skills as required by the project
  • A self-motivated work ethic and be capable of working both independently and as part of a team
  • Excellent communication, interpersonal and English language skills

You may also have

  • Experience developing or maintaining web-based applications (html, css, Javascript frameworks such as Angular, React)
  • Cloud (GCP or AWS) and popular cloud Big Data tools - BigQuery, Dataflow, Looker
  • Hands on containerisation experience (Docker or similar) and orchestration (e.g. with kubernetes)
  • Experience processing of biological archive data
  • Tests and CI/CD

Apply now! Benefits and Contract Information

  • Financial incentives: depending on circumstances, monthly family/marriage allowance of £278 monthly child allowance of £336 per child. Non resident allowance up to £569per month. Annual salary review, pension scheme, death benefit, long-term care, accident-at-work and unemployment insurances

  • Hybrid working arrangements

  • Private medical insurance for you and your immediate family (including all prescriptions and generous dental & optical cover)

  • Generous time off: 30 days annual leave per year, in addition to eight bank holidays

  • Relocation package including installation grant (as applicable)

  • Campus life: Free shuttle bus to and from work, on-site library, subsidised on-site gym and cafeteria, casual dress code, extensive sports and social club activities (on campus and remotely)

  • Family benefits: On-site nursery, child sick leave, generous parental leave, holiday clubs on campus and monthly family and child allowances

  • Contract duration: This position is a 2 year grant funded contract

  • Salary: Monthly salary starting at£3,695.61after tax but excl. pension & insurances) + benefits (Total package will be dependent on family circumstances)

  • International applicants: We recruit internationally and successful candidates are offered visa exemptions. Read more on our page for international applicants.

  • Diversity and inclusion: At EMBL-EBI, we strongly believe that inclusive and diverse teams benefit from higher levels of innovation and creative thought. We encourage applications from women, LGBTQ+ and individuals from all nationalities.

  • Job location: This role is based in Hinxton, near Cambridge, UK. You will be required to relocate if you are based overseas and you will receive a generous relocation package to support you.

To apply, please submit a covering letter and CV via our online system. Applications will close on 17/03/2026.

Senior Software Engineer
Pioneer Selection
Multiple locations
Fully remote
Senior
£450/day
RECENTLY POSTED

Senior Software Engineer - (9 month contract) Salary: Negotiable Shift: Days Mon-Fri Location: Remote - Can live anywhere We are recruiting for an innovative market leader within the industry who are a major player in their field, miles ahead of the competition. This is an opportunity for an experienced Software Engineer to showcase their skills across multiple state-of-the-art automated facilities within the UK. You'll be based from home and will be focused on software development and JAVA development for highly automated distribution factories across the UK. The Senior software engineer will be involved in some high level software development projects within automated warehouse environments. Non Negotiable skills required for the Senior Software Engineer 5 years minimum experience in JAVA development Extensive software development experience Understanding of distribution and automated warehouse environments Strong interpersonal skills to liaise with site teams, colleagues, and management effectively. The Senior Software Engineer will benefit from: Competitive pay rate Working for a highly reputable company Remote working from anywhere in the UK If you are interested in this role and feel that you have the right skills, then please click apply at the bottom of this advert. For further details contact Chris Bacchus at Pioneer Selection Ltd, you automatically become eligible for our referral scheme. You will receive £250 for every candidate we place in permanent employment who has been recommended by you. Terms and Conditions apply please see our website for further details. TPBN1\_UKTJ

DevOps Engineer
Stackstudio Digital Ltd.
Wokingham
In office
Mid - Senior
£500/day - £550/day
RECENTLY POSTED
+11

Role/Job title: DevOps Engineer

Mode of working Hybrid /office based: Office (Wokingham)

The Role We are looking for an experienced Azure .NET and React Full Stack Developer with strong automation skills to join our fast-growing team. The ideal candidate will design, implement, and maintain scalable and secure applications on Microsoft Azure, ensuring high reliability and performance for large-scale data processing (terabyte level). You will collaborate closely with Architects, DevOps Engineers, and other developers to build a robust platform for next-generation applications. impact IT incidents that disrupt critical business services. Their job is to restore service as quickly and safely as possible while maintaining strong communication with technical teams and stakeholders. This role is for a UK based Utility company and hence demands a highly experienced Major Incident Manager. Your responsibilities: Application Development & Cloud Engineering Develop, enhance, and maintain backend services using .NET Core, C#, Entity Framework, and frontend applications using React.

Build and deploy applications using Azure DevOps and implement CI/CD pipelines.

Work extensively with Azure services including:

o AKS, App Service

o Azure SQL Database, Azure Storage (Blob, Queues, Tables)

o Azure Application Gateway, Azure Key Vault

o Azure Container Registry

o Application Insights, Log Analytics Workspace

o Azure Active Directory for authentication and security Automation & CI/CD Automate build, test, and deployment processes to improve efficiency and reliability.

Write unit test cases with 100% code coverage and integrate them into CI/CD pipelines.

Collaborate with DevOps engineers to maintain automated workflows. Performance, Optimization & Troubleshooting Diagnose root causes of production issues and implement effective resolutions.

Optimize application performance using Azure monitoring tools (Azure Monitor, App Insights).

Improve SQL query performance for applications and MLOps workflows.

Perform proactive monitoring, troubleshooting, and enhancement of application functionality. Integration & Documentation Integrate third-party APIs/services ensuring seamless communication.

Document technical decisions, architectural flows, and implementation details in Confluence.

Use Azure Storage and data services efficiently to manage high-volume data workloads. Your Profile The ideal candidate is a seasoned Full Stack Developer with deep expertise in Azure Cloud, .NET Core, C#, and React, capable of building highly scalable, secure, and performant enterprise applications. They should have strong experience working with modern CI/CD pipelines, cloud-native architectures, and distributed systems handling large-scale data. The candidate must be proactive, analytical, and able to collaborate effectively with cross-functional teams including Architects, DevOps Engineers, and Data teams. A strong understanding of cloud automation, application security, API integration, and Azure-native services is essential. The individual should bring a problem-solving mindset, strong communication skills, and the ability to diagnose and resolve complex issues in production environments while continuously improving system reliability and performance. Essential skills/knowledge/experience: 10+ Years Desirable skills/knowledge/experience: Experience 10 12 years of overall IT experience.

Strong expertise in:

o Azure Cloud Platform

o .NET Core, C#, Entity Framework

o REST APIs, React

o Azure SQL, NoSQL, Blob Storage

o AKS, App Service, Azure AD

o Python (as a secondary skill) Cloud & Security Skills Hands-on experience with Azure infrastructure & security services:

o Azure AD, IaaS, PaaS, Containers, Storage, Monitoring

Experience with authentication standards: SAML, OAuth, OIDC, MFA, RBAC.

Good knowledge of Microsoft Identity & Access Management including Azure AD & AD B2C. Tools & DevOps Proficiency with:

o Azure DevOps, CI/CD, Git

o ARM templates, Bicep, Terraform

o PowerShell scripting

o Jira, Confluence, ServiceNow

o Azure Log Analytics, Workbooks, App Insights Additional Skills Familiarity with data formats such as GRIB, NETCDF, Parquet, JSON is a plus.

Strong communication, analytical thinking, and problem-solving skills.

Experience supporting production applications.

Ability to anticipate problems and propose robust solutions.

Azure Developer Certification (AZ-204) is a plus.

TPBN1_UKTJ

Software Engineer, C++ Engineer, 6-month contract, hybrid, Cambridge, Inside IR35
Corriculo Ltd
Cambridge
Hybrid
Mid - Senior
£400/day - £450/day
RECENTLY POSTED

I'm looking for an experienced C++ Engineer / Software Engineer, with experience designing and developing high-availability software - to join a 6 month contract, working on a hybrid basis. This contract has been deemed Inside IR35. The Role The C++ Engineer / Software Engineer will work with C++17 to design & develop key software, working closely with the firmware and hardware engineers. You will work across the full-project lifecycle, participate in code reviews and create high-assurance, testable code. What's required of the C++ Engineer? Commercial experience developing software using C++ Sound knowledge of OO programming Experience of cross-platform development - working with both Windows & Linux Any further experience of C# & .NET FE development would be highly advantageous What's Next? If you're an experienced C++ Engineer / Software Engineer available to start your next contract immediately, please apply today to learn more! Software Engineer, C++ Engineer, 6-month contract, hybrid, Cambridge, Inside IR35 Corriculo Ltd acts as an employment agency and an employment business #MR TPBN1\_UKTJ

JAVA Software Engineer
Gold Group
Bedford
In office
Mid
£60/hour - £80/hour
RECENTLY POSTED
+1

Job Title: Java Software Engineer

Location: Bedfordshire

Rate: £80 p/h - We are booking interviews in next week! Please call or email for a slot

We have a need for additional Software Engineers with Java programming skills to join the Bedfordshire Engineering team.

The Role:

So, what will you be doing as a Java Software Engineer?

The candidate will the following essential skills:

Proven and demonstrable evidence of capabilities in software engineering.

Proven and demonstrable evidence of capabilities in Java (version 11 or later) and Object Oriented Development.

Knowledge of development on various Operating Systems ( Windows 10/11, Linux).

Knowledge of DevSecOps.

Proven and demonstrable experience of working as part of an agile team on a large-scale programme.

Strong oral and written communication skills.

The following skills are desirable:

Knowledge of UML modelling for software.

Knowledge of DDS (Data Distribution Service).

Knowledge of Gradle.

Development of GIS (Geographic Information Systems) Software.

Knowledge of C# or C++.

Knowledge of GitLab.

My client is keen to get this position filled ASAP, so if you feel you have the skills and desire to provide passion and drive as the next Java Software Engineer, this is the opportunity for you!

You will be required to undergo SC clearance for this role.

So, if you are interested in joining a well-established, renowned, globally recognised organisation working with experts in their field as the next Java Software Engineer, hit that apply button now!

Services advertised by Gold Group are those of an Agency and/or an Employment Business.

We will contact you within the next 14 days if you are selected for interview. For a copy of our privacy policy please visit our website.

TPBN1_UKTJ

Software Engineer
Belcan Technical Recruiting (UK) Ltd
Newcastle upon Tyne
Hybrid
Mid
£70/hour
RECENTLY POSTED

Location:Newcastle (60% onsite)

Contract:12 Months with strong likelihood of extension

Hours:35 per week (4.5-day week between 7am-7pm, business discretion)

IR35:Inside of IR35

Pay:£52.32 p/h PAYE / £70 p/h Umbrella

Our Client, a leader in advanced technology solutions within the Defence & Space sector, is seeking a skilled Software Engineer to join their innovative and collaborative Agile Scrum team. Working with cutting-edge cloud technologies and geospatial software, you will contribute to every stage of the development lifecycle-from design through to deployment.

Key Responsibilities

Develop high-quality, readable, and maintainable code using Java and modern cloud-based technologies.

Create scalable and reusable software patterns to support ongoing development velocity.

Participate in production of unit and automated tests to ensure robust software delivery.

Conduct and contribute to design and code reviews, ensuring adherence to best practices, security standards, and maintainability guidelines.

Document developed solutions and share technical knowledge with the wider team.

Actively contribute to Agile ceremonies including sprint planning, daily stand-ups, and sprint reviews.

Work collaboratively with the Scrum team to meet sprint objectives and delivery commitments.

Maintain awareness of compliance risks and uphold integrity in all work activities.

Essential Skills

Strong experience with Java

Cloud services development

Unit testing and automated testing practices

Desirable Skills

DevSecOps tools and pipelines (e.g., Tekton, ArgoCD, SonarQube)

Experience with Red Hat OpenShift or Kubernetes

Experience using the Quarkus framework

Front-end development skills (e.g., Angular)

Given the role’s nature, the selected candidate will undergo BPSS clearance before commencing and will subsequently obtain SC clearance.

If you think this could be a new and exciting career opportunity for you and you would like to learn more or just for an initial, no-obligation conversation please contact me on 07732 694 243 or you can apply directly by following the Easy Apply link and I will contact you as soon as I receive your contact details.

This vacancy is being advertised by Belcan

TPBN1_UKTJ

Software Engineer
Belcan Technical Recruiting Ltd
Newcastle upon Tyne
Hybrid
Mid - Senior
£70/hour
RECENTLY POSTED

Location:Newcastle (60% onsite)

Contract:12 Months with strong likelihood of extension

Hours:35 per week (4.5-day week between 7am-7pm, business discretion)

IR35:Inside of IR35
Pay:£52.32 p/h PAYE / £70 p/h Umbrella

Our Client, a leader in advanced technology solutions within the Defence & Space sector, is seeking a skilled Software Engineer to join their innovative and collaborative Agile Scrum team. Working with cutting-edge cloud technologies and geospatial software, you will contribute to every stage of the development lifecycle-from design through to deployment.

Key Responsibilities

  • Develop high-quality, readable, and maintainable code using Java and modern cloud-based technologies.
  • Create scalable and reusable software patterns to support ongoing development velocity.
  • Participate in production of unit and automated tests to ensure robust software delivery.
  • Conduct and contribute to design and code reviews, ensuring adherence to best practices, security standards, and maintainability guidelines.
  • Document developed solutions and share technical knowledge with the wider team.
  • Actively contribute to Agile ceremonies including sprint planning, daily stand-ups, and sprint reviews.
  • Work collaboratively with the Scrum team to meet sprint objectives and delivery commitments.
  • Maintain awareness of compliance risks and uphold integrity in all work activities.

Essential Skills

  • Strong experience with Java
  • Cloud services development
  • Unit testing and automated testing practices

Desirable Skills

  • DevSecOps tools and pipelines (e.g., Tekton, ArgoCD, SonarQube)
  • Experience with Red Hat OpenShift or Kubernetes
  • Experience using the Quarkus framework
  • Front-end development skills (e.g., Angular)

Given the role’s nature, the selected candidate will undergo BPSS clearance before commencing and will subsequently obtain SC clearance.

If you think this could be a new and exciting career opportunity for you and you would like to learn more or just for an initial, no-obligation conversation please contact me on 07732 694 243 or you can apply directly by following the Easy Apply link and I will contact you as soon as I receive your contact details.

This vacancy is being advertised by Belcan

Senior Software Engineer
ATA Recruitment
Not Specified
Fully remote
Senior
£550/day - £650/day

Senior Java Software Engineer (Contractor)

UK-Based Fully Remote

Outside IR35

Contract to Dec 2026

We are supporting a global engineering and technology organisation in the search for a Senior Java Software Engineer (Contractor) to join their Performance Engineering & Research team.

This is a fully remote opportunity (UK-based candidates only) working on robust, scalable software that supports sophisticated control algorithms and performance optimisation systems.

The Role

You will design, build and maintain efficient, high-performance Java applications, contributing across the full software development lifecycle including:

  • Requirements analysis and system design
  • Development and implementation
  • Testing and deployment
  • CI/CD and automation improvements
  • Technical documentation

Working under the guidance of the Principal Performance Engineer, you will collaborate with solution design, integration, simulation and delivery teams globally.

What We re Looking For

  • Minimum 5 years professional Java development experience
  • Strong understanding of OOP, design patterns and software architecture principles
  • Proven experience delivering scalable, maintainable systems
  • Experience with version control (Git) and CI/CD tools (e.g., Jenkins)
  • Exposure to containerisation and logging technologies (e.g., Docker, ELK)
  • Strong analytical and problem-solving capability
  • Excellent communication skills

Nice to have: Experience within logistics, WMS or warehouse automation however strong Java developers from any industry will be considered.

Contract Details

  • Fully remote (UK-based candidates only)
  • Outside IR35
  • Contract funded through December 2026
  • Full-time engagement
  • ASAP start
  • No predefined rate band quality is prioritised

ATA is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation

Senior Moodle Developer
Morgan Hunt Group Limited
Glasgow
Hybrid
Senior
£47,500 - £56,500

Senior Moodle Developer - 6-Month FTC

47,500-56,500 + Company Benefits

Education Provider

Working Pattern: Hybrid, typically 1 day per week on-site in Warwick. Fully remote applicants may also be considered depending on experience.

Front & Back-End / Moodle & Digital Learning Systems

A leading education provider is seeking a Senior Noodle Developer for a 6-month fixed-term contract. You will play a key role in developing, enhancing and supporting their core digital learning platforms, including Moodle, lecture capture systems, and related assessment tools.

The Role

  • Provide expert support for Moodle and digital learning systems.
  • Design, develop and maintain high-quality applications, integrations and features.
  • Troubleshoot complex issues and deliver clean, scalable fixes.
  • Collaborate with internal teams and external vendors.
  • Contribute to key digital projects with technical guidance and solution design.
  • Maintain documentation, ensure data security and support business continuity.

About You

  • Strong technical expertise with Moodle (plugin development, integrations, etc.).
  • Skilled in PHP, JavaScript, CSS, NodeJS, jQuery (Python desirable).
  • Knowledge of Linux (coding languages), REST APIs, CI/CD, Agile and test-driven development.
  • Excellent communication, problem-solving and customer service skills.
  • Ability to work independently and collaboratively in a fast-paced environment.

Desirable

  • PRINCE2 or ITIL4 Foundation.
  • Experience in higher education or digital learning environments.
  • Working knowledge of Azure and engagement in Moodle/e-learning communities.

Contract Details

  • 6-month FTC
  • 47,500-56,500 salary
  • Based in Warwick

Morgan Hunt is a multi-award-winning recruitment business for interim, contract and temporary recruitment and acts as an Employment Agency in relation to permanent vacancies. Morgan Hunt is an equal opportunities employer. Job suitability is assessed on merit in accordance with the individual’s skills, qualifications and abilities to perform the relevant duties required in a particular role.

ComfyUI Workflow Developer
FourPointZero
London
Remote or hybrid
Mid - Senior
£500/day - £600/day

AI-ComfyUI Workflow Developr - Luxury Brand Production Pipeline
Contract | London-based Studio | UK Remote

London creative agency building high-end CGI for luxury brands needs a contract ComfyUI Workflow Developer who can build AI-powered production pipelines, not just prototype demos.

The project:

Phased approach. 3-4-week POC sprint first, proving that automated AI asset generation can meet luxury brand quality standards. If the client signs off, you move into full production build and deployment.

As the AI/ComfyUI Workflow Developer, you’ll create ComfyUI workflows that generate high-resolution brand imagery at volume using AI models without sacrificing brand quality. Custom AI pipelines, API integration with their content systems, and quality validation that works for luxury market expectations. This has to work in production, not just look good in a deck.

POC sprint proves:

  • AI workflow architecture that actually scales
  • Quality output matching existing CGI standards
  • Integration approach for brand DAM systems
  • Production roadmap client can commit budget to

Production phase builds:

  • Full AI pipeline deployment handling real campaign volumes
  • Scale automation that doesn’t break
  • Handover documentation for their in-house technical team

What this AI/ComfyUI Workflow Developer role needs:

  • Demonstrable ComfyUI workflow development capability
  • Python automation and API integration skills
  • Real experience with AI generation models (MidJourney, Stable Diffusion, Seedance, Flux, or similar)
  • Production deployment knowledge and error handling
  • Ability to explain technical constraints to creative teams clearly

Bonus points:

  • Previous luxury brand, product visualisation, or CGI workflow experience
  • Agency-side work where you’ve dealt with changing briefs

The agency is well-versed in CGI production, working with high-end brands and delivering projects within strict brand guidelines.

If you’re an experienced AI/ComfyUIworkflow Developer, apply with your current CV and portfolio that showcase workflow examples and projects.

Senior Java Developers (x2) - Contract Remote-First
Lord Search & Selection
Oxfordshire
Fully remote
Senior
Private salary

We are seeking two experienced Senior Java Developer contractors to join our client’s UK team immediately. Help drive the future of commerce through innovative automated solutions powering next-generation warehouse and supply chain systems.

Role Details

Engagement: Contract (urgent start)

Location: Remote-First / Hybrid (UK-based)

What You’ll Do

  • Build and maintain efficient, reliable, and high-performance software in line with team coding standards and best practices.
  • Contribute to the design of software components and systems to ensure solutions are robust, scalable, and maintainable.
  • Participate across the full software development lifecycle: requirement analysis, design, coding, testing, deployment, and support.
  • Champion software best practices, coding standards, and continuous integration/delivery across project work.
  • Develop and maintain test automation frameworks, CI/CD pipelines, and technical documentation as needed.
  • Optimise application performance for high-scale warehouse control systems.
  • Mentor junior developers and uphold high engineering quality standards.
  • Collaborate in an Agile environment to solve complex supply chain challenges.

Key Skills & Experience

  • Core Java expertise (5+ years) with strong problem-solving capabilities.
  • Proven track record in software development and implementation.
  • Deep understanding of object-oriented programming, design patterns, and software engineering principles.
  • Strong analytical and problem-solving skills.
  • Familiarity with logistics and operations research concepts is advantageous.
  • Highly reliable, responsible, and effective as part of a collaborative team.
  • Excellent verbal and written communication skills in English.

To apply please submit your full CV quoting reference 10301.

Java Software Engineer
Sanderson
London
Remote or hybrid
Mid - Senior
Private salary
+7

Java Developer - multiple roles

£510/day Inside IR-35

6 month contract

Active SC required

Remote with occasional travel to London for client meetings only - expensable

We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. You’ll work in multidisciplinary teams delivering secure, reliable and scalable systems. The role is hands-on and focused on building high quality software using modern engineering practices.

What you’ll do

You’ll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. You’ll work with technologies including Java, Spring Boot, Postgres, Kafka, Docker, React and AWS. You’ll contribute to CI/CD pipelines, ensure non-functional requirements are met and collaborate with colleagues across engineering, analysis and design.

Essential experience

  • Java and Spring Boot
  • Building and maintaining microservice based systems
  • Postgres or other relational SQL databases
  • Test-driven development (JUnit, Mockito or similar)
  • Docker and containerisation
  • CI/CD pipelines (Jenkins or similar)
  • Working in agile, multi-disciplinary teams

Desirable experience

  • Kafka
  • Liquibase or similar migration tooling
  • Swagger/OpenAPI
  • Gradle
  • React
  • TypeScript

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Software Developer
Experis
City of London
Fully remote
Junior - Mid
£600/day - £601/day
+6

6-12 months London - Remote £600 per day inside IR35 - umbrella only Overview Our developers work within multidisciplinary Agile teams to deliver secure, robust, and user centred digital services. The role involves building high quality software, contributing to technical design, and continually improving codebases to meet service and safety requirements. Soft Skills & Behaviours: Clear and confident communicator , able to work with designers, product teams, testers, engineers, and external partners. Highly collaborative , supporting team success and contributing to shared goals. Positive, engaged, and proactive , bringing energy to team ceremonies and wider delivery activities. Comfortable with change , able to work through evolving requirements or priorities. Keen to learn and share knowledge , contributing to code reviews, pair?programming, and community?of?practice activities. Experienced working within Agile delivery , contributing to stand-ups, planning, reviews, retrospectives, and show?and?tell sessions. Delivers with quality , making sensible trade-offs and managing technical debt thoughtfully. Stays informed about modern technologies and practices , promoting proportionate adoption of tools that add value. Technical Skills & Responsibilities: Intermediate to advanced practical experience with: React and TypeScript Python AWS services i.e. Athena/Glue, DynamoDB, ECS, S3, Lambda, SQS, Step Function, etc Automated testing frameworks for Python and JavaScript Terraform for infrastructure-as-code Agile delivery workflows Tooling experience: Git Jira Confluence Desirable (Nice to Have): Cypress GitHub Actions Splunk Other Requirements: Eligible for BPSS and SC clearance , due to interaction with sensitive or protected systems. Previous NHS experience is desirable , including understanding of NHS digital services or national systems. Exposure to digital product development and live?service environments is advantageous. TPBN1\_UKTJ

Junior C# Developer - SC Cleared
VIQU IT
London
Hybrid
Junior
£300/day - £350/day

Junior C# Developer 6-month contract London SC Cleared Inside IR35

My Financial Services customer is looking for a Junior C# Developer, that will play a key role in triaging and resolving technical queries during the development of the Synchronisation Lab to act as a platform for industry to demonstrate use cases and understand business models for synchronisation. The Junior C# Developer will proactively engage with Product and development teams to ensure timely responses to queries.

You ll be joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure

Junior C# Developer Skills & Experience required:
• Active SC Clearance.
• Strong hands-on experience with C#, .NET.
• Experience with Agile ways of working.
• Experience with a Microsoft Azure based environment.
• Experience in the Financial Services sector.
• High level support with incident response and troubleshooting.
• Eagerness to learn and improve interpersonal skills.

Junior C# Developer Key Responsibilities:
• Triaging and resolving technical queries.
• Build and maintain database structures and queries using SQL.
• Support the enhancement of synchronisation models based on participant feedback.
• Collaborate with developers and the production team.
• Delivering the technical release of later synchro models.

You must be able to work onsite 2 days per week in London.

Apply now to speak with VIQU IT in confidence. Or reach out to Louise Davies via the VIQU IT website.

For more exciting roles and opportunities like this, please follow us on IT Recruitment.

Software Developer
Experis IT
London
Fully remote
Junior - Mid
£600/day
+2

6-12 months
London - Remote
£600 per day inside IR35 - umbrella only

Overview
Our developers work within multidisciplinary Agile teams to deliver secure, robust, and user centred digital services. The role involves building high quality software, contributing to technical design, and continually improving codebases to meet service and safety requirements.

Soft Skills & Behaviours:
Clear and confident communicator, able to work with designers, product teams, testers, engineers, and external partners.

  • Highly collaborative, supporting team success and contributing to shared goals.
  • Positive, engaged, and proactive, bringing energy to team ceremonies and wider delivery activities.
  • Comfortable with change, able to work through evolving requirements or priorities.
  • Keen to learn and share knowledge, contributing to code reviews, pair programming, and community of practice activities.
  • Experienced working within Agile delivery, contributing to stand-ups, planning, reviews, retrospectives, and show and tell sessions.
  • Delivers with quality, making sensible trade-offs and managing technical debt thoughtfully.
  • Stays informed about modern technologies and practices, promoting proportionate adoption of tools that add value.

Technical Skills & Responsibilities:
Intermediate to advanced practical experience with:

  • React and TypeScript
  • Python
  • AWS services ie Athena/Glue, DynamoDB, ECS, S3, Lambda, SQS, Step Function, etc
  • Automated testing frameworks for Python and JavaScript
  • Terraform for infrastructure-as-code
  • Agile delivery workflows

Tooling experience:

  • Git
  • Jira
  • Confluence

Desirable (Nice to Have):

  • Cypress
  • GitHub Actions
  • Splunk

Other Requirements:

  • Eligible for BPSS and SC clearance, due to interaction with sensitive or protected systems.
  • Previous NHS experience is desirable, including understanding of NHS digital services or national systems.
  • Exposure to digital product development and live’service environments is advantageous.
Frequently asked questions
A contract Full Stack Engineer is a software developer hired on a temporary basis to work on both frontend and backend aspects of web applications. These roles are project-based or time-limited, offering flexibility and focused expertise.
Contract durations vary widely but commonly range from 3 to 12 months. Some contracts may extend or renew based on project needs and performance.
Proficiency in both frontend frameworks (like React, Angular, or Vue.js) and backend technologies (such as Node.js, Python, Java, or Ruby) is essential. Familiarity with databases, APIs, and version control is also important.
Contract roles can be remote, on-site, or hybrid depending on the employer’s requirements. Many companies now offer flexible remote contract opportunities.
You can browse available contract Full Stack Engineer positions on our platform, create a profile, upload your resume, and apply directly through each job listing. Setting up job alerts helps you stay updated on new contracts.