20 software developer jobs found in London, greater london

Software Developer - Outside IR35 Contract Daily Rate - £300-£600 Contract : Initially for 6-Months with opportunity for extension (18-24 Month Scope) or to transition into a Permanent Employee. Potential Start Date : March 2026 Location : Central London, Hybrid Working Experience Level : 1 to 5 Years We have a fantastic opportunity available with a client in the Financial Services Space! They have a number of Greenfield Projects to carry out and they are searching for Computer Science Graduates to join their Project teams! There is a Fantastic Opportunity there to jump into a small team where you will be exposed to the Full Project Life cycle, get hands on with every step of the way and the opportunity to work alongside and learn from experienced Developers in some complex and challenging environments! Requirements : Bachelors Degree in Computer Science or related field. 1 to 5 Years of experience working in a regulated area (ideally Loans...

Software Engineer - Node & React Remote with very occasional client visits £400 - £420pd Outside IR35 3-month contract, potential for extension Our client, an established and successful Consultancy are looking for a number of experienced Developers to join them on a contract basis With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy click apply for full job details

Software Engineer - Node & React Remote with very occasional client visits £400 - £420pd Outside IR35 3-month contract, potential for extension Our client, an established and successful Consultancy are looking for a number of experienced Developers to join them on a contract basis With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy leader with a dedicated team of professionals, partnering with sector leaders This is a completely hands-on role where you will develop and maintain scalable, full-stack web applications using Next.js and Node.js We are looking for: Demonstrable and proven experience in full-stack applications (inc. working knowledge of a range of technologies such as React, Node.js and TypeScript). Experience with Azure and ARM templates including dev and deployment of supporting cloud infrastructure (inc. pipelines). Excellent, in-depth understanding of BDD, TDD and SOLID...

Lead Backend Software Developer (Contract) London, Outside IR35 £500- £600 per day This is an exciting opportunity to join a fast-moving engineering function at a pivotal moment of technical uplift. They are investing heavily in strengthening their core platforms and commercial data systems, creating a strong mandate for senior engineers to step in, lead, and make an immediate impact. The Company They are a growing digital gaming organisation operating across multiple markets, currently modernising their backend ecosystem. With distributed teams across the UK and Europe, they are building scalable platforms that support a variety of customer-facing and internal products. Engineering quality, strong technical leadership, and delivery excellence are central to their transformation. Contractors join at a time when technical ownership is expanding in-house, creating real scope to shape systems and standards. The Role and Deliverables: * Lead...

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...

Cloud/AWS Infrastructure Engineer Location: London, UK Employment Type: TP (Outside IR35) Duration: 6-12 Months Job Responsibilities: · Maintain and improve AWS cloud infrastructure for 24/7 bank operations, focusing on stability, performance, security, and compliance · Enhance connectivity between AWS accounts, client, and third parties to ensure secure and reliable customer experiences · Design and create automation scripts and tooling using Bash, Python, or Go · Build and support cloud platforms for application developers, improving SDLC and developer experience · Manage vendor relationships and coordinate project efforts across business areas · Participate in on-call rotation to support platform reliability Required Qualifications, Capabilities, and Skills: · Formal training or certification on software engineering concepts and advanced applied experience · Hands-on experience with AWS and infrastructure as code (Terraform) · Understanding of...

Location: The role is based remotely with occasional travel to London. Daily rate: £400 outside IR35 Duration: Initial 6 months *please note* : must have active SC clearance The Back End Developer will have the following responsibilities: Design, develop, and maintain Back End systems and services using Java. Collaborate with Front End developers and other cross-functional teams to deliver seamless and scalable solutions. Write clean, maintainable, and well-tested code following industry best practices and web standards. Troubleshoot and resolve complex technical issues related to Back End systems. Participate in code reviews and contribute to the continuous improvement of development processes. Ensure high-performance and reliability of Back End services through proper architecture and testing. Leverage Azure services to optimize cloud-based solutions (if applicable). Stay up-to-date with emerging technologies and incorporate them into the...

Backend Developer (Java)£400 Outside IR35 Remote SC Clearance Required Methods is looking for an experienced Backend Developer with strong Java expertise to join our growing engineering capability. You will play a key role in designing and building scalable Back End services that support complex digital platforms within secure, cloud-based environments. Key Responsibilities Design, develop and maintain Java-based Back End systems and microservices Build and integrate RESTful APIs supporting modern digital platforms Write clean, maintainable and well-tested code following engineering best practices Troubleshoot and resolve complex Back End technical issues Contribute to code reviews and continuous improvement of development practices Support the design of scalable and high-performance Back End architectures Work within agile teams delivering secure and resilient software solutions Mentor junior...

Job Title: Full Stack Developer (TypeScript / React / Node.js) – SC Cleared Location: Hybrid (UK-based) 1/2 days per month Rate: £550–£600 per day (Outside IR35) Contract Length: 6 months initially Start Date: 2nd March 🚀 The Opportunity We are seeking an experienced Full Stack Developer with active SC Clearance to join a high-profile programme delivering secure, scalable digital solutions within a government-facing environment. This is a 6-month contract (initially), paying £550–£600 per day Outside IR35 , with an immediate start on 2nd March . 🛠️ Key Skills & Experience Essential: Strong commercial experience with TypeScript and JavaScript Advanced front-end development using React Back-end development with Node.js Experience building and consuming RESTful APIs Solid understanding of modern software engineering best practices Experience working in Agile/Scrum environments Active SC Clearance (mandatory)...

Senior Software Engineer - Node & React Remote with very occasional client visits £420 - £440pd Outside IR35 3-month contract Our client, an established and successful Consultancy are looking for an experienced Developer to join them on a contract basis. With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy leader with a dedicated team of professionals, partnering with sector leaders This is a completely hands-on role where you will develop and maintain scalable, full-stack web applications using Next.js and Node.js We are looking for: Demonstrable and proven experience in full-stack applications (inc. working knowledge of a range of technologies such as React, Node.js and TypeScript). Experience with Azure and ARM templates including dev and deployment of supporting cloud infrastructure (inc. pipelines). Excellent, in-depth understanding of BDD, TDD and SOLID principles. In-depth...

Senior Software Engineer - Node & React Remote with very occasional client visits £420 - £440pd Outside IR35 3-month contract Our client, an established and successful Consultancy are looking for an experienced Developer to join them on a contract basis click apply for full job details

Senior C# Developer - Commodities Trading - Outside IR35 Exciting opportunity for an experienced senior developer to build on their experience in Commodities or similar trading development role in this successful Commodities Trading company. £750 - 800 per day Outside IR35 The Senior C# Developer will have significant prior experience as a Senior Software Engineer/Senior Developer working as C# Developer in a Commodities trading environment where they will have gained knowledge of the full trade life cycle and feel comfortable speaking directly to traders and senior stakeholders in the business as well as senior technical colleagues such as architects. Central London location, with Hybrid working expected. Very strong core skills in C# are expected Good knowledge of Commodities Trading is also required. Please apply now if your curious to learn more, for a confidential discussion about the role and company Guidant, Carbon60, Lorien & SRG - The Impellam Group...

GraphQL Full Stack Engineer - TypeScript | Node.js| Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. If crafting elegant GraphQL schemas, building robust TypeScript/Node.js services, and deploying to cloud-native environments is your idea of fun, this is your next project. The Role Design & develop GraphQL API services from schema, supergraph, subgraph, GraphQL federation, design to production integration, ensuring performance, flexibility, and maintainability. Build scalable TypeScript, Node.js services that integrate seamlessly with modern frontends and data sources. Apply DevOps best practices to deliver through CI/CD pipelines (Jenkins, Concourse), Docker, Helm, and Kubernetes....

Job Title: Full Stack Developer (TypeScript / React / Node.js) – SC Cleared Location: Hybrid (UK-based) 1/2 days per month Rate: £550–£600 per day (Outside IR35) Contract Length: 6 months initially Start Date: 2nd March 🚀 The Opportunity We are seeking an experienced Full Stack Developer with active SC Clearance to join a high-profile programme delivering secure, scalable digital solutions within a government-facing environment. This is a 6-month contract (initially), paying £550–£600 per day Outside IR35 , with an immediate start on 2nd March . 🛠️ Key Skills & Experience Essential: Strong commercial experience with TypeScript and JavaScript Advanced front-end development using React Back-end development with Node.js Experience building and consuming RESTful APIs Solid understanding of modern software engineering best practices Experience working in Agile/Scrum environments Active SC Clearance (mandatory)...

Job Title: Python Developer Location: Central London (2-3 days onsite) Job Type: Outside IR35 Duration: 6 Months Job Summary: Join a dynamic team in Central London as a Python Coder for an immediate contract position. You will work onsite 2-3 days per week in a highly collaborative environment, leveraging your Python expertise to deliver robust backend solutions. This role is outside IR35 and offers the opportunity to work with cutting-edge technologies. Hiring Company: A forward-thinking organization utilizing Python (Flask, FastAPI), PostgreSQL, and AWS to deliver scalable, high-quality backend systems. Key Responsibilities: Architect with Purpose: You will reason about software placement within broader business systems, ensuring solutions align with company objectives. Master Data Flow: Design and implement logic from persistent storage layers to API endpoints. Execute with Python: Apply deep expertise in Python and web frameworks, specifically...

Job Title: Full Stack Developer (TypeScript/React/Node.js) - SC Cleared Location: Hybrid (UK-based) Rate: £550-£600 per day (Outside IR35) Contract Length: 6 months initially Start Date: 2nd March The Opportunity We are seeking an experienced Full Stack Developer with active SC Clearance to join a high-profile programme delivering secure, scalable digital solutions within a government-facing environment. This is a 6-month contract (initially), paying £550-£600 per day Outside IR35 , with an immediate start on 2nd March . Key Skills & Experience Essential: Strong commercial experience with TypeScript and JavaScript Advanced Front End development using React Back End development with Node.js Experience building and consuming RESTful APIs Solid understanding of modern software engineering best practices Experience working in Agile/Scrum environments Active SC Clearance (mandatory) Desirable: Experience with cloud platforms...

Senior Full Stack Developer | Public Sector | Outside IR35 Contract: Outside IR35 Rate: £450-500/day Duration: ASAP start, 6 months initially Location: Fully remote (UK-based only) Clearance: Must be eligible for SC Sector: UK Government/Public Sector experience essential I'm supporting a consultancy delivering digital services into the UK public sector and we're looking for a Senior Full Stack Developer to join the team on a contract basis. This is a hands-on senior role working across the full software development life cycle. You'll design, build, and maintain robust full stack applications within AWS, contributing to architectural decisions and ensuring solutions meet government standards for security, accessibility, and performance. You'll work closely with product, design, and engineering colleagues in an agile delivery environment. Essential Experience Strong hands-on experience with Java (Kotlin) Backend development - Node.js Front End -...

We are seeking a Full Stack Developer to support the design, build and scaling of a modern healthcare analytics platform. This role will play a key part in developing new product features across frontend, backend and cloud infrastructure, contributing to architectural decisions and ensuring high quality, secure and scalable delivery. You will be working within a product focused environment, collaborating closely with technical and non technical stakeholders to shape features that directly impact healthcare providers. This role is ideal for someone who enjoys building robust solutions, working with complex datasets and delivering intuitive user experiences within a healthcare setting. Proven healthcare sector experience is essential. Main Duties • Design, build and maintain full stack features end to end • Develop clean, reusable and maintainable code across frontend and backend • Contribute to architecture and technical design decisions • Build and...

Senior C# Software Engineer (Contract) Location: London (Hybrid) Rate: £500 per day IR35 Status: Outside IR35 Duration: 6 Months (Initial) The Opportunity Join a high-performing engineering team within a London-based powerhouse that is currently dominating its sector. This company has moved past the startup phase into a period of sophisticated, sustainable growth, and they are now maturing their global platform to be truly cloud-agnostic. This role is perfect for a Senior Engineer who thrives on architectural variety. You won’t just be maintaining a single environment; you will be building high-throughput systems that leverage the best features across AWS, Azure, and GCP . The Role As a Senior C# Engineer, you will lead the development of mission-critical services that form the backbone of a rapidly scaling infrastructure. Your focus will be: Backend Development: Writing clean, testable, and high-performance code using the latest...

Contract Azure Data Engineer - £600/pd Outside IR35 Please note - this is a London based role which will require you to attend the London office three days per week. To be eligible for this role you must be based in the UK and have the unrestricted right to work in the UK. My client is looking for an experienced Data Engineer to support the delivery of high-quality data and software solutions within a fast-paced asset management environment. You 'll join a small engineering team driving improvements across core systems, analytics workflows, and DevOps-led delivery processes. Key Responsibilities Analyse business processes, gather requirements, and document technical solutions. Design, develop, and deliver data and software solutions aligned to business goals. Produce clean, modular, testable code and support peer code reviews. Own the delivery lifecycle, remove technical blockers, and lead third-party developers when required. Contribute...