25 of 25 Contract Software Engineer Jobs in the South East

CONTRACT SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW CONTRACT JOB OPPORTUNITY AVAILABLE WITHIN A LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Contract job opportunity for a Senior Software Engineer Globally leading defence/cyber security company … inside and outside IR35 roles available) London based organisation in an easily accessible location Contract Senior Software Engineer To apply please call or email WHO WE ARE? We are recruiting multiple contract Senior Software Engineers to work with various clients in London ranging from R&D companies ...

Senior C++ Developer/Software Engineer - London Based in the City of London (2 days in the office)/6 months rolling/£750 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer/Software Engineer, to be responsible for preparing programming assignments, including the design, planning and supervision of the implementation of large-scale system projects. This will include: Reviews, analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system. Essential Duties and Responsibilities ...

Cyber Software Engineer - Romsey, UK Full-time onsite role in Romsey, Hampshire Day rate up to £725 per day, inside IR35 Active DV clearance required Long-term programme delivering mission-critical national security solutions ABOUT THE COMPANY Our client is a highly trusted technology partner within … national security community, delivering complex, mission-critical solutions across cyber, software, and advanced analytics. They bring together engineers, scientists, and technologists to solve some of the most challenging problems in defence and security. Due to continued programme growth, they are seeking an experienced Cyber Software Engineer ...

Software Engineer - Contract (SC Cleared) Location: London (Hybrid Working) Contract: Outside IR35 Clearance: Active SC Clearance required Email : Phone : Overview We are seeking an experienced AI Software Engineer to join a high-impact programme based in London , working on cutting-edge AI and LLM-driven solutions. … owners, and DevOps Ensure solutions meet security, performance, and maintainability standards expected in SC-cleared environments Required Skills & Experience Strong commercial experience as a Software Engineer working with AI/LLM-based systems Hands-on experience with LangChain and/or LangGraph Excellent Python development skills Solid experience ...

Senior Software Engineer - AWS AI Solutions Contract | Inside IR35 | Hybrid Working Role Overview We are seeking an experienced Senior Software Engineer to support the design, development, and delivery of intelligent contact centre solutions using AWS AI services. Key Responsibilities Design, develop, and maintain software solutions … cloud infrastructure layers. Contribute to technical decision-making and continuous improvement within the engineering function. Essential Skills & Experience Demonstrable experience working as a Senior Software Engineer (or equivalent) on complex software projects. Strong hands-on experience with AWS services, particularly Amazon Lex and other AI/ ...

Backend Software Engineer Java/Cloud (SC Cleared) Guildford, Surrey (Hybrid - x3 days per week on-site) 12-month contract Rates: Negotiable (DOE) We are currently supporting a major organisation within the Defence & Space sector who are looking for an experienced Software Engineer to join … collaborative Agile Scrum team working on innovative geospatial software solutions . Youll be involved across the full software development lifecycle, contributing to the design, development, testing and deployment of scalable, cloud-based services using modern technologies. Key Responsibilities Design, develop and maintain high-quality, scalable Java-based applications ...

C++ Software Engineer - Defence Initial 6-month contract Onsite in Reading when required Please note, due to the nature of work this role requires SC level Security Clearance on submission. The role will also be working on UK Eyes Only programmes so the contactor must be a sole … British national. Our client, a leader in the defence and security sector, is currently seeking an experienced C++ Software Engineer for a contract position. Based near Reading, this role is largely remote with occasional onsite requirements (25% onsite). The contract tenure is six months with full-time ...

Contract Software Engineer - Enhanced DV Cleared New Contract Opportunity for a Software Engineer with Data experience in London with eDV Clearance New contract opportunity to work on operational projects across the National Security domain Enhanced DV Clearance required for high-side IT access London based … dominic./About Join a leading consultancy delivering innovative and secure technology solutions across highly operational national security projects . We're seeking a Software Engineer to support and enhance critical systems within a dynamic, high-performing team. You'll work across development and DevOps activities, supporting complex ...

Join Our Client's Innovative Team as a Software Engineer (DevOps)! Are you ready to take your software engineering skills to the next level in the dynamic banking industry? Our client is on the lookout for a talented Software Engineer (DevOps) to help shape … have a passion for automating processes, and are eager to mentor others, we want to hear from you! What You'll Do: As a Software Engineer (DevOps), you'll be at the forefront of transforming our client's development practices. Your responsibilities will include: Coding & Testing: Design ...

Senior Software Engineer Location: London (Hybrid) Contract Duration: 6 months Join a specialized Applied AI team driving innovation in business operations. The group accelerates AI transformation by developing agentic systems and full-stack infrastructure to automate workflows and drive efficiency. We're seeking a Senior Software Engineer … with corporate grit (processes, ticketing, documentation). Strong knowledge of distributed systems and high-availability APIs . Preferred Qualifications Experience in B2B or enterprise software environments . Ability to define product requirements and deliver end-to-end solutions. We're seeking passionate engineers who thrive in fast-moving, innovative ...

Backend Software Engineer Java/Cloud (SC Cleared) Guildford, Surrey (Hybrid - x3 days per week on-site) 12-month contract Rates: Negotiable (DOE) We are currently supporting a major organisation within the Defence & Space sector who are looking for an experienced Software Engineer to join … collaborative Agile Scrum team working on innovative geospatial software solutions click apply for full job details ...

Cleared Senior Software Engineer Aldermaston - Onsite 12-month contract | Outside IR35 Are you a DV cleared Software Engineer who can take full ownership of software delivery on site? Do you enjoy building Siemens PLC solutions from scratch in secure, regulated environments? Looking for a long … week Work on high-security, technically challenging projects What will you be doing? Designing, developing and programming Siemens PLC systems from scratch Leading all software activities on an assigned project Configuring Siemens PLCs, HMIs and associated networks Producing on-site test documentation and supporting FATs and SATs Carrying ...

Senior Software Engineer (Backend) - Identity & Authentication AWS * TypeScript * Node.js (NestJS) * REST APIs * Auth0 * Transmit Security * GitHub * CloudFormation Contract - 12 months, upto £650/day inside IR35 ***Hybrid - 3 days office (either London or Manchester office) Leading financial services client is seeking a Senior Software Engineer …/CD pipelines for microservice deployments. Embed DevSecOps best practices across IAM, networking and compliance. Collaborate with Agile teams to deliver high-quality, secure software at scale. Key Skills: Strong Node.js/NestJS and REST API development experience. Skilled in AWS Build and evolve backend services that support login ...

Cleared Senior Software Engineer Aldermaston - Onsite 12-month contract Outside IR35 Are you a DV cleared Software Engineer who can take full ownership of software delivery on site? Do you enjoy building Siemens PLC solutions from scratch in secure, regulated environments? Looking for a long ...

Backend Software Engineer £450 - £550 per day 2 days onsite We're working with a global healthcare and AI research organisation that's pioneering the use of advanced Machine Learning to accelerate the discovery and delivery of life-changing treatments. Their vision is to enable faster, personalised therapies … that improve patient outcomes worldwide - and they're seeking a Backend Software Engineer to help bring that mission to life. The Role You'll be joining a multidisciplinary AI/ML team responsible for developing the infrastructure and software that powers cutting-edge research and intelligent applications. ...

Software Engineer (C# .NET) Location: Luton (4 days on-site, 1 day remote) Contract: 12 months Security Clearance: Full UK SC required Rate: £57.72 p/h PAYE (£66.11p/h inc. holiday rate) OR £78.70 p/h Umbrella Inside IR35 About the Role Our client … development environment. What You'll Do · Develop robust applications using C# .NET within a Windows environment. · Take ownership of complex tasks across the full software lifecycle—from requirements to integration, testing and delivery. · Apply object-oriented design principles and verification/validation techniques. · Collaborate with a skilled team while ...

month contract for a C++ Linux Software Engineer. Inside IR35, 2 days from home after an initial period getting to grips with the project. Contract Software Engineer essential skills - Strong C++ on Linux Significant embedded software engineer experience Desirable skills Build environment OpenEmbedded, Bitbake, Makefiles ...

Contract Software Engineer (Ada) – Real-Time Embedded Location: Luton (Hybrid – ~4 days on-site) Contract Length: 12 months IR35: Inside IR35 Rate: £57.72 p/h PAYE (£66.11p/h inc. holiday rate) OR £78.70 p/h Umbrella We seek an engineer with recent high-integrity … industry experience (defence, aerospace, or similar), or eligible for UK security clearance. The Opportunity We're looking for an experienced real-time embedded Ada engineer to work on mission-critical defensive systems within a highly technical electronic warfare environment. This is a hands-on role developing, integrating, and testing ...

Sapien Engineering are looking for a Software Engineer to join a defence client on a contract basis. The client is based near Ebbsfleet, Kent. Flexible working options are available once you are fully up to speed with the project. This is an initial 6-month contract, inside IR35 … paying circa £65 per hour. Job requirements: C# C and C++ Android software development (Xamarin) highly beneficial UML or similar Full SDLC Software/embedded software requirements capture Please note all applicants must be eligible for full, un-restricted UK SC clearance. For more information, please apply ...

Contract Embedded Software Engineer Required Duration: 6 Months+ Location: Outskirts of Oxford (Hybrid – 2 Days Per Week Onsite) Rate: Up to £57 per hour, Outside IR35 We're looking for an experienced Contract Embedded Engineer to join an established embedded engineering team working on next-generation embedded … harsh environments. This is a hands-on role where you'll collaborate closely with cross-functional teams to define specifications, develop high-quality software, and support products through release. Key Responsibilities Design, develop, and maintain embedded Linux platforms on ARM-based microprocessors Develop high-performance, reliable embedded software ...

Contract Embedded Software Engineer Required Duration: 6 Months+ Location: Outskirts of Oxford (Hybrid - 2 Days Per Week Onsite) Rate: Up to £57 per hour, Outside IR35 We're looking for an experienced Contract Embedded Engineer to join an established embedded engineering team working on next-generation embedded ...

Lead/Senior Software Engineer for 12 month contract on site in London. Working for a Big 4 professional services firm delivering software projects. Java, Python, Cloud Native AWS, AI, DevOps, CI/CD - Jenkins/GitLab Lead/Senior Java/Python EngineersBig 4 Consultancy ...

Lead Software Engineer Lead (Java/Python, Cloud & AI) Location : London (5 days in office) Duration 12 months Competitive Day Rate (Inside IR35) Key Expectations from the role: Technical leadership and architecture Delivery ownership AI/ML solution stewardship People leadership Stakeholder and product partnership Controls and governance ...

with the team to design, implement, and test new product features Participate in sprint planning, including task estimation Contribute across all stages of the software development life-cycle Ensure adherence to compliance requirements and act with integrity at all times Required Skills & Experience Strong experience with Java (8+) Spring … development with Hibernate Experience building RESTful APIs over HTTPS Hands-on experience with microservice architectures Understanding of distributed systems Knowledge and practical use of software design patterns Experience working in Agile development processes Familiarity with CI/CD delivery techniques Source code management using Git Use of issue tracking ...

Senior Full Stack Developer We are looking for a high-caliber Senior Full Stack Developer (L5 equivalent) to join a specialized innovation "incubator." Our mission is to accelerate the AI transformation of global business operations ...