18 software contractor jobs found in London, hybrid

Contract - Full Stack Developer Job description Job Title: Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte. The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid understanding of Development and...

Location: London 1-2 days a week. Department: Engineering Employment Type: Contract Contract Length: 6 months (with potential for extension) About YLD: Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. About the role: As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and...

In this role you will participate in the development of software capability within the NCA National Cyber Crime Unit (NCCU) by building upon existing capabilities and creating innovative applications.   As a member of a technical team you will be working with a range of programming paradigms, data structures and modern programming languages to support, identify and develop software and technical opportunities and smarter working.   As a Software Tester your main responsibilities will be to:   Accelerate the process of taking new ideas and features through to the live environment with test automation. Improve the overall test practices across the system through technical implementation and mentoring developers on testing, increasing reliability and stability. Testing the code written by software developers. Testing how individual cloud components are integrating with each other, and how to assess that programmatically....

Location: London 1-2 days a week. Department: Engineering Employment Type: Contract Contract Length: 6 months (with potential for extension) About YLD: Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. About the role: As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and...

Full job description Location: London 1-2 days a week. Department: Engineering Employment Type: Contract Contract Length: 6 months (with potential for extension) About YLD: Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done. About the role: As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious,...

Senior Operations Lead – Service Operations Transformation (Contract) Toyota Connected Europe (TCEU) · London (Hybrid) · Contract – Initial 3 months (extendable) Outside IR35   About the role: Our Operations function is at an important stage of its evolution. The department has an ambitious FY2026 plan to deliver: intelligent automation, AIOps, process excellence, stronger governance, workforce transformation into SRE/ARE-aligned engineering, and a new “Ops as a Product” operating model. To get there, we first need to stabilise and strengthen the current team's standards, ownership and ways of working. We are looking for an experienced, hands-on Senior Operations Lead to join on an initial 3-month contract to do two things in parallel: stabilise the current team, resetting standards, ownership and customer confidence, and begin its transformation into a modern, engineering-led operations capability. The...

Codurance is a global software professional services consultancy, helping clients continuously deliver value through the adoption of quality practices and technical excellence. Software craftsmanship is at the heart of everything we do. We build well-crafted software and help development teams get better at continuously delivering software through the application of extreme programming practices and software craftsmanship values. In 2010, our founders started the London Software Craftsmanship Community (LSCC), now the largest and most active software craftsmanship community in the world, with more than 5,500 developers. Codurance was founded in 2013 and has carried that same community spirit ever since. Budget: £550 - £600 / per day InsideIR35 6 Months contract Requirements We're looking for a Contract Agile Delivery Manager who shares our values of pragmatism, professionalism and transparency. Working from your affiliated office location (London,...

Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...

SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks.  Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active SC clearance.    We are seeking an experienced  Scrum Master / Agile Coach  to join the National Crime Agency's  Project KEENNESS , a high-profile programme focused on disrupting Organised Immigration Crime through the use of AI, technology and innovative software solutions.   Working within the National Cyber Crime Unit (NCCU), you will play a key role in driving the delivery of critical software capabilities, acting as the bridge between intelligence stakeholders and technical delivery teams. Key Responsibilities...

Senior Operations Lead – Service Operations Transformation (Contract) Toyota Connected Europe (TCEU) · London (Hybrid) · Contract – Initial 3 months (extendable) Outside IR35   About the role: Our Operations function is at an important stage of its evolution. The department has an ambitious FY2026 plan to deliver: intelligent automation, AIOps, process excellence, stronger governance, workforce transformation into SRE/ARE-aligned engineering, and a new “Ops as a Product” operating model. To get there, we first need to stabilise and strengthen the current team's standards, ownership and ways of working. We are looking for an experienced, hands-on Senior Operations Lead to join on an initial 3-month contract to do two things in parallel: stabilise the current team, resetting standards, ownership and customer confidence, and begin its transformation into a modern, engineering-led operations capability. The...

We are hiring for Project Manager in London,UK - Hybrid - Contract -Inside IR35   Looking for Active SC Clearance   Skills: Previous experience in Senior Project and Change Management. Experience of delivering significant enhancements to or introducing new services, products and platforms and managing the impacts on people, processes, tools and culture. Previous experience of managing senior stakeholders. Excellent leadership, communication and influencing skills, Demonstrable experience of a range of methodologies including Agile, and working in fast-paced and demanding environments, Solid understanding of data software development principles, lifecycle models and methodologies within Agile and Scrum, Ability to lead the construction of the project plan to deliver the outcomes of the roadmap, development plan and roll out & implementation of the roadmap, Proven experience converting product roadmaps into work packages,...

Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...

Job Description We’re Hiring: Mobile Security Engineer Experience: 8+ Years Location: Bristol / London, UK (Hybrid – Onshore) Employment Type: Contract (Inside IR35) Company: Derisk360 Preferred: Immediate Joiners (0–15 Days Notice Period) Are you passionate about securing mobile applications and protecting enterprise platforms from emerging threats? Join Derisk360 as a Mobile Security Engineer and help strengthen the security posture of mobile applications through security assessments, threat modelling, and secure engineering practices. What You'll Do: Conduct regular reviews of mobile application security posture using hands-on security assessment techniques. Perform threat modelling and recommend appropriate mitigation strategies for mobile platforms. Develop and maintain penetration testing tools, scripts, security policies, and procedures. Assess and improve the security of Android and iOS applications....

Senior Operations Lead – Service Operations Transformation (Contract) Toyota Connected Europe (TCEU) · London (Hybrid) · Contract – Initial 3 months (extendable) Outside IR35   About the role: Our Operations function is at an important stage of its evolution. The department has an ambitious FY2026 plan to deliver: intelligent automation, AIOps, process excellence, stronger governance, workforce transformation into SRE/ARE-aligned engineering, and a new “Ops as a Product” operating model. To get there, we first need to stabilise and strengthen the current team's standards, ownership and ways of working. We are looking for an experienced, hands-on Senior Operations Lead to join on an initial 3-month contract to do two things in parallel: stabilise the current team, resetting standards, ownership and customer confidence, and begin its transformation into a modern, engineering-led operations capability. The...

Role description Principal Data Engineer Nottingham/ London (Hybrid) Contract Inside IR35/ Permanent   About the Role As a Principal Data Engineer, you will combine deep technical expertise with engineering leadership to drive the design, development and evolution of our cloud-scale data platform. You will provide technical leadership across distributed data processing, data products, streaming architectures and data platform capabilities, while remaining hands-on with coding, design and engineering best practices. You will play a key role in shaping engineering standards, mentoring teams, influencing technical direction and delivering robust, scalable data solutions that enable our Engineers, Data Scientists, Analysts and Governance teams to unlock business value.   What You'll Do Lead the design, development and continuous evolution of cloud-scale data platforms and data products across batch and streaming workloads...

Joining a cross functional Delivery team (software engineers, delivery, QA, UX, design) Client is in financial services domain ILarge platform and product build inc. customer journeys. Ideal start date 23rd July 2026 6 months contract - likely to extend £day rate / outside IR35 2 days / week in person working Immediate interviews.     Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic enhancements and new digital products and services (or make significant improvements to existing ones). The best bit about Red Badger is, of course, the team. We've been around for 10+ years now and we are 100 strong. We are really proud of our people; we support and learn a lot from...

Senior Consultant (Commerce) - Contract Senior Consultant with experience in Commerce ecosystems and technologies wanted to join our Business Services team on a Fixed Term or Contract basis The opportunity: We are on the hunt for a visionary and accomplished Senior Business Consultant to play a pivotal role in shaping the future of our Consultancy solutions. This is not merely a high profile role; it's an opportunity to act as a trusted leader and mentor, guiding both our clients and our internal team towards unprecedented success. Your deep industry expertise and collaborative leadership style will be instrumental in driving impactful business outcomes, while your commitment to our people-first approach will be essential in fostering a culture of empowerment, growth, and continuous improvement within the Consultancy team and across the entire Business Services department. Contract/FTC roles open London - Hybrid Other core elements of this role will be:...

Role Description This is a Hybrid contract role for a Generative AI Engineer. The Generative AI Engineer will design, build, and optimize AI models and workflows to support internal tools and customer-facing solutions. Day-to-day responsibilities include experimenting with large language models and other generative models, preparing and cleaning data, and implementing prompt-engineering and fine-tuning strategies. The role also involves integrating AI capabilities into applications or internal systems via APIs, monitoring performance, and iterating based on measurable outcomes. The engineer will collaborate with product, operations, and business stakeholders to understand requirements, propose practical AI-driven solutions, and ensure secure, compliant use of data and models. Qualifications Strong foundation in software engineering, including proficiency in at least one programming language commonly used in AI (such as Python) and experience with version control and...