16 software engineer jobs found in London

CONTRACT AI SOFTWARE ENGINEER - OUTSIDE IR35 - SC Cleared NEW CONTRACT OPPORTUNITY AVAILABLE Rate: Up to £600 per day Location: London / Remote-first Working Pattern: Part-time, 2-3 days per week; predominantly remote with occasional London workshops Contract Length: 3 months initially, with extension likely IR35 Status: Outside IR35 Start Date: 19th October 2026 (subject to availability) I 'm currently working with an organisation delivering innovative AI and data solutions within the UK public sector, who are looking for an experienced AI Software Engineer to join an initial 3-month engagement on a part-time basis. This is an opportunity to help shape how a new public sector organisation operates using AI from the outset, combining hands-on engineering with the design of AI-enabled workflows, governance and operating models. THE ROLE You 'll work as part of a collaborative engineering team, helping design and build...

Python/Django Software Engineer Location: Remote, with 1 to 2 days a month in London Rate: £500/day Outside IR35 Duration: 3 months initial Sector: Central Government Must be SC Cleared Overview We're looking for a Python/Django Software Engineer to join a central government programme. You'll build and improve digital services on AWS, working in a multidisciplinary team to deliver reliable, secure and user-focused software. Key Responsibilities Design, build and maintain web applications and APIs in Python and Django Develop and deploy services on AWS Write clean, well-tested and maintainable code Take part in code reviews and help raise engineering standards Work with product, design and delivery colleagues in an Agile team Support CI/CD pipelines and automated testing Troubleshoot and fix issues across development and live environments Key Requirements Strong commercial experience with Python and Django Hands-on AWS experience covering services such...

Senior C# Developer - up to £600 per day - REMOTE Role Type: Contract Title - Senior C# Engineer Client - Established Financial Institution Rate - Up to £600 P/D - OUTSIDE IR35! Location - Remote Duration: 6 month rolling My client is a well-established and successful tech house working in the finance sector who are looking a talented senior C# Developer, with outstanding technical and communication skills to join their existing team of software engineers and work on an exciting new project! You will get the chance to work with some of the best technologists out there, one some of the most up to date tech in the industry, on a greenfields project! This is a 6 month rolling Contract, with high possibility of extension, and can pay up to £600 P/D Requirements: Strong experience working with C#/.Net Experience working with Cloud Technologies (Azure preferred) Finance experience a plus! Strong Communication skills with a drive to be working with the best...

AI Enabled Full Stack Engineer - Outside IR35 £500/day - 3 month contract - 1 day p/week in London I'm working with a leading European technology business that has recently undergone a major technology transformation, building a new AI-driven, cloud-native platform now live with a significant customer base. They're looking for multiple AI Enabled Engineers on a contractual basis to continue enhancing the platform, maintaining their industry leading status. We're looking for innovative full stack engineers with strong software engineering fundamentals, particularly those with: A genuinely AI-first approach to development, using tools such as Claude, Cursor or Copilot as part of your daily workflow Strong C#/.NET experience - now building in Python/Typescript Good Angular or React experience Experience with AWS/cloud-native development Strong software engineering fundamentals across APIs, databases, testing and CI/CD Experience with LLMs, agentic systems or...

SC Graph Data Engineer Fully Remote | Outside IR35 | Up to £450 per day | 6-Month Contract Active SC clearance is essential. The Opportunity We are seeking an experienced Graph Data Engineer to join our Data Engineering team on a freelance basis. You will work closely with data engineers, software engineers, architects and business stakeholders to design, develop and maintain scalable, high-performance data solutions, with a particular focus on graph databases, data modelling, entities and relationships . This is a hands-on engineering role suited to someone with strong commercial experience in Neo4j, Cypher, AWS and Python , alongside a proven ability to build robust, scalable data pipelines and deliver effective data integration and transformation solutions. Key Skills and Responsibilities Graph Data Engineering Strong commercial experience working with Neo4j . Advanced proficiency in Cypher , including query development and optimisation. Strong...

SC Graph Data Engineer Fully Remote | Outside IR35 | Up to £450 per day | 6-Month Contract Active SC clearance is essential. The Opportunity We are seeking an experienced Graph Data Engineer to join our Data Engineering team on a freelance basis. You will work closely with data engineers, software engineers, architects and business stakeholders to design, develop and maintain scalable, high-performance data solutions, with a particular focus on graph databases, data modelling, entities and relationships . This is a hands-on engineering role suited to someone with strong commercial experience in Neo4j, Cypher, AWS and Python , alongside a proven ability to build robust, scalable data pipelines and deliver effective data integration and transformation solutions. Key Skills and Responsibilities Graph Data Engineering Strong commercial experience working with Neo4j . Advanced proficiency in Cypher , including query development and optimisation. Strong...

Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Permrequirement for an immediate start. The Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm will be working for a leading specialty insurance broking group, Embedded as the senior technical lead within one of several product squads. You'll work alongside a Development Manager, Product Owner and development team, owning technical direction with genuine autonomy and influence. Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm Key Skills: A career software developer, with a distinguished-engineer mindset: you own outcomes, not tickets London Market experience is essential, ideally gained within a broker (eg building or supporting a broker workbench or placement platform). Insurer, MGA, carrier or InsurTech backgrounds will also be considered Strong...

Contract Lead Node.js Engineer (HubSpot & Commercial Systems) Fully Remote Outside IR35 £500 - £580 Per Day 8 Month Duration The Company They are a global technology and digital marketing organisation operating at scale across online consumer platforms. Their products combine data, technology, content, and partnerships to connect highly engaged audiences with relevant digital experiences. With a strong engineering culture and significant volumes of commercial data flowing through their platforms, they continue to invest in the systems and tooling that support business growth. This contract supports a key engineering function during a period of planned leave cover. The Role and Deliverables Lead development and ongoing enhancement of a proprietary commercial data platform that acts as a bridge between internal systems and HubSpot. Drive architectural decisions and define scalable solutions across multiple business and engineering...

Senior .NET Engineer – AI Acceleration (Contract) Location: 1 Day per week in London Contract: 6 months Rate: £450-£550 | IR35: Outside | Start: 4 weeks About the role Our client, a leading UK fintech, is looking for a senior .NET engineer with deep experience in AI agents and AI tooling. You'll spend the first half of the contract in their AI Acceleration squad, building agents, AI integrations and the tooling that makes their engineers faster. In the second half, you may move partly or fully into their product squads, doing hands-on C# and .NET development with AI-assisted ways of working. The ideal person is a strong AI and agent builder with a solid .NET background, rather than a data scientist or machine learning researcher. What you'll deliver Three automation agents for the Onboarding and Transaction Operations teams, built, deployed and supported in production. The coding harness: contributions to the internal setup...

Lead Azure DevOps Engineer ( SC eligible/ SC Cleared )    London, United Kingdom | Posted on 06/10/2026   About Scrumconnect Scrumconnect Consulting is a UK-based digital transformation consultancy delivering secure, scalable, and user-centred solutions across government and enterprise organisations. We specialise in agile delivery, cloud platforms, data, and modern engineering practices—helping clients build reliable services that meet high operational and compliance standards. Role Overview As a Lead Azure DevOps Engineer, you will be at the forefront of our infrastructure development, guiding our DevOps strategy and implementation within Azure environments. You will work closely with development teams to ensure efficient deployment and operation of applications, and lead the effort to automate and optimise our processes. This role suits a dynamic, proactive leader who is passionate about using cloud technologies to...

Technology Lead - AWS Modernisation Programme 6-Month Contract | Outside IR35 | £400-£450 per day | Fully Remote We're supporting a consultancy delivering a major cloud transformation programme and are looking for an experienced Technology Lead to drive the modernisation of a large-scale enterprise application estate. This is a hands-on leadership role combining solution architecture, software engineering, cloud transformation, DevOps and stakeholder engagement. You'll lead the transition from Legacy Java applications to modern AWS-native services, helping define the target architecture while providing technical leadership across engineering and delivery teams. The Role You'll be responsible for shaping and delivering a cloud-native modernisation strategy, guiding applications from monolithic architectures to scalable microservices and serverless solutions on AWS. Working closely with technical and business stakeholders, you'll lead architecture decisions, mentor engineering...

Technology Lead - AWS Modernisation Programme 6-Month Contract | Outside IR35 | £400- £450 per day | Fully Remote We 're supporting a consultancy delivering a major cloud transformation programme and are looking for an experienced Technology Lead to drive the modernisation of a large-scale enterprise application estate. This is a hands-on leadership role combining solution architecture, software engineering, cloud transformation, DevOps and stakeholder engagement. You 'll lead the transition from legacy Java applications to modern AWS-native services, helping define the target architecture while providing technical leadership across engineering and delivery teams. The Role You 'll be responsible for shaping and delivering a cloud-native modernisation strategy, guiding applications from monolithic architectures to scalable microservices and serverless solutions on AWS. Working closely with technical and business stakeholders, you 'll lead...

Remote (UK based candidates only) | Initial 6-Month Contract | £450 pd Outside IR35 | Possibility for extension We're looking for an experienced Technology Lead to drive a major AWS cloud modernisation programme, transforming Legacy Java applications into scalable, secure, cloud-native solutions. This is a hands-on leadership role combining architecture, software engineering, DevOps, database expertise and stakeholder engagement. You'll lead the design and delivery of modern AWS-based platforms, guide engineering teams, shape technical strategy and act as a trusted advisor throughout the transformation journey. Required Skills: 5+ years experience with AWS cloud architecture Hands-on expertise with ECS, Fargate, Lambda & API Gateway 10+ years professional experience in Java, Spring Boot & REST APIs Experience building microservices and serverless solutions Strong knowledge of DynamoDB and PostgreSQL/Aurora PostgreSQL Hands-on CI/CD, Jenkins, Git, Docker &...

Remote (UK based candidates only) | Initial 6-Month Contract | £450 pd Outside IR35 | Possibility for extension We 're looking for an experienced Technology Lead to drive a major AWS cloud modernisation programme, transforming legacy Java applications into scalable, secure, cloud-native solutions. This is a hands-on leadership role combining architecture, software engineering, DevOps, database expertise and stakeholder engagement. You 'll lead the design and delivery of modern AWS-based platforms, guide engineering teams, shape technical strategy and act as a trusted advisor throughout the transformation journey. Required Skills: 5+ years experience with AWS cloud architecture Hands-on expertise with ECS, Fargate, Lambda & API Gateway 10+ years professional experience in Java, Spring Boot & REST APIs Experience building microservices and serverless solutions Strong knowledge of DynamoDB and PostgreSQL/Aurora PostgreSQL Hands-on CI/CD, Jenkins, Git,...

Senior Allegro ETRM Developer – C#/.NET A leading energy trading organisation is looking for an experiencedAllegro ETRM Developer to join their technology team on a long-term contract. The role will focus on designing, developing and supporting solutions across theAllegro ETRM platform , working closely with technical and business stakeholders to deliver solutions for complex energy trading requirements. Key Responsibilities • Design and deliver solutions across theAllegro ETRM platform . • Own the full software development lifecycle, from requirements and solution design through to deployment, support and continuous improvement. • Work closely with Product Owners, Business Analysts and stakeholders to translate business requirements into technical solutions. • Develop and support enterprise applications usingC# and .NET . • Follow strong software engineering practices around testing, version control, code quality and secure development. •...

Our leading Investment Management client are looking for a Technical Business Analyst to work on a long-term contract basis. Scope The work runs from definition through to published reporting. It is an analysis and delivery role working alongside data engineers, platform engineers and the teams whose work is being measured. Definitions Draft the precise definitions the measure set depends on, working with the owners to get them agreed and published: what counts as a human intervention on a change, how consumption costs from several sources are normalised into a single comparable figure, and where the boundary sits between the cost of building software and the cost of running it. Resolve competing figures already in circulation, establishing a single agreed baseline for each measure and restating history against it. Document each measure so that two people calculating it independently arrive at the same number, including its baseline date and its known limitations....