18 of 18 DemandTrendContract Software Engineer Jobs in London

Contract Role – Data Software Engineer (Software Development, Big Tech Company) – London/Hybrid – 3 Months Initial – Inside IR35 PAYE We are seeking an exceptional Data Software Engineer that would support data onboarding and filtering effort in a project on LLM agents for research. The engineer will onboard data and run filtering on text, image … and video datasets leveraged by research teams. The goal is to proactively mitigate potential risks associated with these datasets. Role Overview: Job Title: Data Software Engineer Location: London/Hybrid Contract Type: Contract Duration: 3 months initially, extension likely Year of experience: 2 - 4 years – No more than 6 years Top 3 must-have HARD skills: Data experience … experience Data sets mitigation and filtering experience Good to have skills: Machine learning experience is a great to have Experience with pie torch. Typical Day in the Role: Typical software engineer job, doing data mitigation and filters Low administration A lot of research discussions. Will be working 100% on this AI automation project. Please feel free to contact 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 … 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 More ❯

Senior C++ Software Engineer We are looking for a Senior C++ Software Engineer with extensive commercial software development experience using C++ ideally within the finance domain. What you will be doing: As a Senior C++ Software Engineer, you will be involved in: Analysis of user requirements and translation into solution design Estimating and … Implementation of new features and feature enhancements Leading code reviews and enforcing best practice within a small, agile, focused team Mentoring junior colleagues What you will need: Extensive commercial software development experience using C++ SQL experience Unix/Linux experience Relevant degree in a numeric discipline, or equivalent work experience Excellent written and spoken English By applying to this More ❯

month contract for a C++ Linux Software Engineer. Outside IR35, 2 days from home after an initial period getting to grips with the project. You will need to live within a commutable distance. Contract Software Engineer essential skills - Strong C++ on Linux Significant embedded software engineer experience Desirable skills Build environment OpenEmbedded, Bitbake, Makefiles Networking … UDP, TCP/IP, Analysis tools (e.g Wireshark) Linux Kernel and CLI tools BASH scripting Python Real-time multi-threaded software concepts U-Boot Wt web GUI library familiarity Position : Contract C++ Linux Software Engineer Location : Wimbledon, London Apply: jamie AT enterpriserecruitment DOT com More ❯

month contract for a C++ Linux Software Engineer. Outside IR35, 2 days from home after an initial period getting to grips with the project. You will need to live within a commutable distance. Contract Software Engineer essential skills - Strong C++ on Linux Significant embedded software engineer experience Desirable skills Build environment – OpenEmbedded, Bitbake, Makefiles Networking … UDP, TCP/IP, Analysis tools (e.g Wireshark) Linux Kernel and CLI tools BASH scripting Python Real-time multi-threaded software concepts U-Boot Wt web GUI library familiarity Position : Contract C++ Linux Software Engineer Location : Wimbledon, London Apply: jamie AT enterpriserecruitment DOT com More ❯

Software Engineer Hybrid Working - Edinburgh - 1 day a week on site. Financial Services Lorien's leading banking client is looking for an experienced Software Engineer with strong experience in Java, Spring Boot, and React to join the existing team on an initial 6month contract. This role is based in Edinburgh. This role will be Via Umbrella. … Working in a Hybrid Model of 1 day a week on site. Key Skills and Experiences Delivery of high-quality software through configuration and customisation with a focus on reuse, adding value to the business and aligning to bank standards, patterns and guardrails. Experience of working within Financial Services/High Street Banking Strong Skills working with: Java Spring More ❯

Job Title: Software Engineer – (AI Automation & LLM ) Location: London- Hybrid role Duration: 31st December 2025- possible extension Role: We're looking for a skilled Data Engineer/Software Engineer to support a pioneering AI research project focused on Large Language Model (LLM) agents and intelligent automation. You’ll play a central role in preparing and … storage, and transformation Direct experience with dataset mitigation and filtering techniques Background in data quality control , validation, and automation Excellent communicator able to work with diverse technical teams Strong software engineering skills in data-intensive environments Nice to Have Knowledge of machine learning principles and frameworks (e.g., PyTorch) Experience in front-end technologies like JavaScript Exposure to full-stack … development or ML infrastructure Previous experience in high-scale software or research environments More ❯

Senior C++ Software Engineer - Financial Services My client, a leading financial services organisation, is seeking a Senior C++ Software Engineer to join their dynamic and collaborative team. This is an exciting opportunity to contribute to high-impact projects in a fast-paced, agile environment. Key Responsibilities Analyse user requirements and translate them into robust solution designs … Develop new features and enhance existing functionality Lead code reviews and promote best practices across the team Mentor and support junior engineers Required Skills & Experience Proven commercial experience in software development using C++ Strong knowledge of SQL Proficiency in Unix/Linux environments Degree in a numeric discipline (e.g., Computer Science, Mathematics) or equivalent professional experience Excellent communication skills More ❯

Job Title: Software Engineer - Operational Data Store (Scala/Oracle Exadata) Pay Rate: £600- £775 IR35 Status: Inside IR35 Length of Contract: 12 months Location: Bromley Hybrid Model: Hybrid - 3 days About the Role We are seeking a talented Software Engineer to join our Operational Data Store feature team, contributing to the transformation of our Post More ❯

Senior Python Software Engineer Contract - Outside IR35 Day Rate: Up to £725 (DOE) Immediate Start Location: UK Remote Opportunity: Our UK leading client is seeking experienced Senior Software Engineers who enjoy building products end-to-end. You’ll join a collaborative team where your expertise in backend systems (with Python as a core strength) will help shape … and user outcomes Enthusiasm for learning, experimenting, and continuous improvement The Role: Work in a cross-functional squad alongside product managers, designers, and other engineers Contribute across the full software lifecycle — planning, building, deploying, and running systems Take ownership with a “you build it, you run it” mindset, from commit to production Collaborate directly with end-users and internal 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 with More ❯

C++ Software Engineer working on strategic enhancements and involved with all phases of the development and trading life cycle. Must have up to date C++ under Linux and be highly numerate, working in a small agile focused development team. By applying to this job you are sending us your CV, which may contain personal information. Please refer to More ❯

New contract Role SC Cleared Software engineer £475 Inside ir35 2 days onsite to your local office - London, Manchester, Cardiff Requirements Must be able to go onsite x2 a week SC Clearance (valid) Skillset required Python Django More ❯

New contract Role SC Cleared Software engineer £475 Inside ir35 2 days onsite to your local office - London, Manchester, Cardiff Requirements Must be able to go onsite x2 a weekSC Clearance (valid) Skillset required Python Django More ❯

AI Engineer – Government Department | Outside IR35 | 6 Months+ | Hybrid (London)We are seeking experienced AI Software Engineers to support a government department on a high-profile programme of work. The role will involve leading the design and build of advanced agentic AI systems, applying cutting-edge research, and developing solutions that can scale across complex environments.Key Responsibilities Lead More ❯

Infrastructure as Code. Familiarity with CI/CD and agile ways of working. Got your attention? If you believe that you have the skills and experience for the Principle Engineer role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any More ❯

Infrastructure as Code. Familiarity with CI/CD and agile ways of working. Got your attention? If you believe that you have the skills and experience for the Principle Engineer role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any More ❯

Experience with either Pytest or Selenium frameworks Experience with performance testing tools in JMeter, Blaze Meter or Locust Knowledge of artificial intelligence and machine learning concepts Solid understanding of software testing methodologies and best practices Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we More ❯