1 to 25 of 51 Contract Software Engineering Jobs in London

GoLang Developer London, UK 6 Month Contract An incredible opportunity for an experienced GoLang Developer with advanced backend engineering skills to join a prestigious tech client on a contract basis. This company is renowned for its engineering excellence, and they're looking for a GoLang Developer who can take their distributed systems to the next level. As a … GoLang Developer, you'll be working on mission-critical, data-intensive applications that push the boundaries of technology, taking ownership of the full software engineering lifecycle, including design, development, and implementation. Reporting into an Engineering Manager, the GoLang Developer will also leverage modern technologies like AWS, Kubernetes, Docker, and Kafka, whilst also architecting and implementing microservices-based … be responsible for optimising system performance, reliability, and scalability, as well as participating in code reviews, design discussions, and knowledge sharing. GoLang Developer - Key Requirements: Significant professional experience in software development, with a strong focus on backend systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes, and Docker Experience with end-to-end software engineering More ❯

LLM, or chat interface teams on content generation or governance. Comfort conducting or analyzing content-specific usability testing. About Us: Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe. We are headquartered in New Jersey. We combine technology and talent to deliver tech debt relief, improve … engineering productivity solutions, and accelerate time to value, driving our clients’ digital journeys with efficiency and velocity. Guided by our “Engineering to the power of AI” [EngineeringAI] methodology, we integrate AI into software engineering, enterprise operations, and talent orchestration, to address critical challenges of trust, speed, and capital. For more information With Ascendion, you: Will get More ❯

expertise in banking or fintech, with a strong grasp of regulatory requirements, trust signals, and accessibility best practices. About Us: Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe. We are headquartered in New Jersey. We combine technology and talent to deliver tech debt relief, improve … engineering productivity solutions, and accelerate time to value, driving our clients’ digital journeys with efficiency and velocity. Guided by our “Engineering to the power of AI” [EngineeringAI] methodology, we integrate AI into software engineering, enterprise operations, and talent orchestration, to address critical challenges of trust, speed, and capital. With Ascendion, you: Will get to work on More ❯

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 £500 - £750 per day (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, Multi-National Consultancies to SME's and product based companies. Due to the nature of the work these clients do, you must hold enhanced … DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture to R&D, implementation to More ❯

Job Title: Software Engineer Job Description We are seeking a highly skilled Software Engineer to join our expanding team as we grow our current PDO team to a total of five members. This role offers a dynamic opportunity to work on innovative projects and contribute to the development of cutting-edge software solutions. Responsibilities Collaborate with the … team to develop, test, and maintain software applications. Utilise Python and PHP to create efficient and scalable software solutions. Engage in the full software development lifecycle, from concept to deployment. Perform code reviews and contribute to continuous improvement processes. Work closely with stakeholders to gather requirements and deliver solutions that meet business needs. Essential Skills Proficiency in … Python Strong understanding of SQL and database management. Experience in software development and engineering practices. Additional Skills & Qualifications Background in computer science, software engineering, or a related field. Experience working within a team environment and contributing to team success. Why Work Here? Join a forward-thinking organisation that values innovation and professional growth. We offer a More ❯

Engineering manager - STIBO - PIM/MDM - JAVA We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. Must … Haves skill: 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. Deep technical proficiency in: Languages: Java 17+ (Java More ❯

tech backlog to improve the customer and sales advisor experience Assess the customer and sales advisor experience in identifying requirements that will be translated into the streamlined backlog for software delivery Voice of the advisor: Translates advisor pain-points into tech delivery to ensure seamless workflow for advisors across the branches Lead workstreams to include analytics, customer discovery, market … decisions on features, functionality and sales plans Collaborate with cross functional teams to define product requirements, user stories and user flows. Ensure a user/customer centric approach to software development Key Skills Knowledge and strong experience in the multi-channel digital experience space Extensive experience in a product management role Experience of product and software engineering practices and software development Experience in defining and delivering software platforms and features on consumer facing products across operating systems and applications Extensive experience working cross functionally with Engineering, UX/UI, sales, finance and other stakeholders Data driven and commercial with experience breaking down and solving complex problems If you feel you have the right More ❯

Contract Engineering Manager Location: Hybrid (2–3 Days/Week Onsite – London)?? Duration: 6 Months? IR35 Status: Outside IR35? Rate: £600–£650/dayOpus is partnering with well-known UK retailer seeking a Contract Engineering Manager to lead the technical migration of their STIBO STEP PIM system from on-premise to a modern SaaS architecture. This is a … internal teams and external vendors to align on integration, customisation, and roadmap Champion microservices and event-driven architecture Translate technical complexity into business-friendly insights for senior stakeholders Manage engineering teams through full product lifecycle, ensuring delivery excellence and operational stability Drive adoption of Elite DORA metrics and engineering best practices Must-Haves: 10+ years in software engineering, 5+ in leadership roles Proven experience with STIBO STEP and enterprise SaaS migrations Strong technical depth across Java, microservices, and cloud-native tooling Exceptional communication and stakeholder management skills Interested? Apply now or send your latest CV to ASAP!If you haven’t heard back within 48 hours, please assume your application was not successful this time. More ❯

Kubernetes) - desirable TO BE CONSIDERED... Please apply directly by emailing with your CV and availability. KEYWORDS: Contract .NET Developer, Microsoft Stack Engineer, AI/ML Engineer, Azure Developer, Banking Software Engineer, Outside IR35, Remote More ❯

a leading international law firm that's on a mission to redefine how legal and professional services are delivered-through human-centred technology. They're looking for a pragmatic Software Engineer who thrives in cross-functional teams, loves solving real-world problems, and enjoys delivering impactful solutions at pace. If you're product- and user-focused, collaborative, curious, and … delivery-oriented, this is your opportunity to make a real impact. Key Requirements: 3+ years in software engineering with a strong product mindset Experience working closely with product teams and designing for real users Strong frontend skills (JavaScript/Typescript, React/Angular, HTML) and backend expertise (Node.js, Python) Proven experience in API design and system integration Proficiency … with Microsoft Azure and familiarity with databases, IAM, containers, and deployment tools Comfortable with rapid prototyping tools (e.g., Figma) Solid understanding of the Software Development Life Cycle (SDLC) Responsibilities: Product Engineering & Delivery Build and maintain user-facing applications, tools, and integrations Collaborate with product managers, designers, and stakeholders Write clean, maintainable, well-tested code Contribute to product discovery More ❯

looking for a skilled Backstage Developer to help design, build, and maintain internal developer portal using Spotify Backstage. This role will focus on improving the developer experience across our engineering teams by centralising tools, documentation, and workflows into a single, cohesive platform. Role The Spotify Backstage Developer will design, develop, and maintain plugins and extensions within Spotify Backstage. Integrate … Backstage with existing infrastructure, CI/CD pipelines, monitoring tools, and cloud platforms (AWS/Azure/GCP). Collaborate with DevOps, platform, and software engineering teams to streamline developer workflows. Ensure scalability, security, and usability of the developer portal. Provide technical guidance, documentation, and training for engineering teams adopting Backstage. Contribute to Backstage open-source ecosystem More ❯

Senior Go Developer London, UK 6 Month Contract An incredible opportunity for an experienced Senior Go Developer with strong backend engineering skills to join a prestigious tech client on a contract basis. Known for its high bar for engineering quality, this isn't your typical banking or fintech gig - contractors here are genuinely embedded, involved, and making meaningful … full development lifecycle, from system design and implementation to optimisation and release. You'll be working in an open, fast-moving environment where ideas get tested quickly and good engineering practices are taken seriously. If you like seeing your work go live within days - not weeks - you'll fit right in. Contractors are treated as part of the team … contributing to technical decisions, stand-ups, and everything in between. Reporting into an Engineering Manager, you'll be hands-on with technologies like AWS, Kubernetes, Docker, and Kafka, and will collaborate closely with product and infrastructure teams to ship well-architected, scalable microservices. This is a team that values clean systems, clear thinking, and code that lasts. You'll More ❯

Full Stack Developer | 3 Roles Available | 3 Month Initial Contract | Up to £550 per day (Inside IR35) | London (2 days per week on-site) | Active SC Clearance Required MERITUS are working with a well-established financial services company in London More ❯

Full Stack Developer | 3 Roles Available | 3 Month Initial Contract | Up to £550 per day (Inside IR35) | London (2 days per week on-site) | Active SC Clearance Required MERITUS are working with a well-established financial services company in London More ❯

frameworks. Collaborate with product owners, designers, and other engineers to prioritise and deliver features. Ensure security, compliance, and confidentiality of sensitive financial data. The skills you'll need: Professional software engineering experience. Full stack development expertise (React, TypeScript, Python). Experience with FastAPI or similar Back End frameworks. Familiarity with agent frameworks and AI/ML integration. Experience More ❯

a restructure and are looking to bring in some new talent. The successful candidate will be a Test Lead that isn't scared to get their hands dirty within software testing, strategy and more. Key Responsibilities To provide breadth of domain knowledge to support delivery in all areas of testing. To produce a Test Strategy for simple or moderate … Essential Skills At an advanced level able to articulate and demonstrate a good understanding of: Test Management: Responsibilities for the Test Analyst Improving The Testing Process Test Techniques Testing Software Quality Characteristics Reviews Defect Management Test Tools And Automation Has demonstrable in-depth experience in using common business technology (for example, MS Office suite of tools) Has demonstrable in … a specific domain; including at least one of the following: applications, infrastructure, security, networks Able to produce a wide range of test deliverables in-line with applicable standards. International Software Testing Qualifications Board (ISTQB) Foundation Level Certification International Software Testing Qualifications Board (ISTQB) Test Analyst Advanced Level Certification Demonstrable experience of working as a Senior Test Analyst within More ❯

client, a leading telecommunications provider, who are actively seeking a Head of Automation on an initial 6 month contract. The ideal candidate will be an experienced individual with a software engineering/Development background, Fixed mobile/b2b experience, experienced leader and a Continuous improvement mindset. An experienced Head of Engineering individual with focus on network automation More ❯

client, a leading telecommunications provider, who are actively seeking a Head of Automation on an initial 6 month contract. The ideal candidate will be an experienced individual with a software engineering/Development background, Fixed mobile/b2b experience, experienced leader and a Continuous improvement mindset. An experienced Head of Engineering individual with focus on network automation More ❯

client, a leading telecommunications provider, who are actively seeking a Head of Automation on an initial 6 month contract. The ideal candidate will be an experienced individual with a software engineering/Development background, Fixed mobile/b2b experience, experienced leader and a Continuous improvement mindset. An experienced Head of Engineering individual with focus on network automation More ❯

structures (SQL/DDL), including the creation and management of staging tables Ability to translate requirements into actionable technical tasks Excellent problem-solving and communication skills Solid understanding of software engineering principles (testing, version control, CI/CD) Nice to Have Experience with AWS services such as Glue, Aurora, S3, and RDS Ability to design and optimize schemas More ❯

Software Engineer | Workday Certified Developer | C# | API Integrations | Contract Workday Studio | EIBs | Core Connectors | REST APIs | HRIS | RemoteSR2 is working with a consultancy client on a large-scale Workday implementation and looking for an experienced Workday Certified Developer with strong C# and API integration expertise.This role will focus on designing, building, and maintaining complex integrations between Workday and external More ❯

recruit an experienced Quality Assurance (QA) Lead . This is a hybrid role that offers an exciting opportunity for a forward-thinking, hands-on leader to take ownership of software testing initiatives within an organisation undergoing transformation and technology adoption . The successful candidate will be responsible for shaping and implementing robust testing strategies, leading a team of testers … and ensuring quality standards are consistently met. As the QA Lead , you will drive process improvements, foster collaboration across teams, and play a pivotal role in delivering high-quality software solutions that align with organisational goals. Experience with a range of testing platforms and/or the adoption of new tools is desirable, as is a strong understanding of … Cypress, or similar). Strong interpersonal and communication skills, with the ability to present technical testing data to stakeholders as meaningful insights. In-depth understanding of risk management within software quality assurance, with a track record of resolving project issues effectively. Proven ability to monitor and report on quality metrics to improve testing outcomes and accelerate release cycles. Desirable More ❯

to solve complex business challenges. IR 35 Status - Inside Key Responsibilities Design, build, and deploy Python-based AI applications. Research and prototype advanced GenAI techniques, including fine-tuning, prompt engineering, RAG, and agentic systems. Develop LLM-assisted frameworks and contribute to scalable AI architectures. Write clean, maintainable, and well-documented code. Implement testing pipelines and evaluation frameworks. Collaborate with … data scientists, software engineers, and domain experts to deliver high-impact solutions. Essential Skills Expert-level Python programming with libraries such as NumPy, Pandas, Scikit-learn, LangChain, LlamaIndex, and Azure AI Foundry. Strong experience with Azure and generative AI R&D. Practical knowledge of GenAI techniques including prompt orchestration, retrieval methods, and agentic frameworks (e.g., LangGraph, Semantic Kernel Agents … . Ability to write production-ready code and apply robust quality control. Familiarity with software engineering best practices including version control, testing, and deployment. Desirable Skills Experience building optimized AI workflows. Deep understanding of Microsoft Azure AI services. Strong data analytics and visualization skills (Excel, Alteryx). Awareness of Responsible AI principles. This is a collaborative role within More ❯

solutions to solve complex business challenges.IR 35 Status - Inside Key Responsibilities Design, build, and deploy Python-based AI applications. Research and prototype advanced GenAI techniques, including fine-tuning, prompt engineering, RAG, and agentic systems. Develop LLM-assisted frameworks and contribute to scalable AI architectures. Write clean, maintainable, and well-documented code. Implement testing pipelines and evaluation frameworks. Collaborate with … data scientists, software engineers, and domain experts to deliver high-impact solutions. Essential Skills Expert-level Python programming with libraries such as NumPy, Pandas, Scikit-learn, LangChain, LlamaIndex, and Azure AI Foundry. Strong experience with Azure and generative AI R&D. Practical knowledge of GenAI techniques including prompt orchestration, retrieval methods, and agentic frameworks (e.g., LangGraph, Semantic Kernel Agents … . Ability to write production-ready code and apply robust quality control. Familiarity with software engineering best practices including version control, testing, and deployment. Desirable Skills Experience building optimized AI workflows. Deep understanding of Microsoft Azure AI services. Strong data analytics and visualization skills (Excel, Alteryx). Awareness of Responsible AI principles. This is a collaborative role within More ❯

Software Engineer City of London Hybrid (3/2 split) Contract £900 - £1000 per day (Via Umbrella) cer Financial are working alongside an international bank, who are based in the City of London. They are seeking a Software Engineer to work with them on a contract. The responsibilities of the Software Engineer will include: Hands-on Full … reliability. Continuous improvement of the development and release environment, tooling, and processes. Work closely with the operation team and users and provide level 3 support as required. The successful Software Engineer will have: Strong fundamental Computer Science knowledge including Concurrency; Algorithms and data structures Scrum/agile methodology (Product owner and/or Scrum master), or ability to deliver … software on short cycles Evidence of delivering application from inception, to design, and to production String core Java development skills including streams, lambdas, and advanced concurrency APIs Extensive experience and understanding of distributed systems, developing, profiling, and maintaining multi-threaded, asynchronous applications JVM monitoring, profiling, performance tuning, and debugging. Experience with analysis tools such as JConsole, JVisualVM, Elastic Search More ❯