8 full stack developer jobs found in London

Full Stack Developer (Kotlin & TypeScript) - Public Sector Transformation - OUTSIDE IR35 - ACTIVE SC CLEARANCE REQUIRED Tecknuovo is a deliberately different digital consultancy, delivering secure, modern technology solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an experienced Full Stack Developer (Kotlin & TypeScript) to support a major public sector transformation programme focused on the modernisation and decomposition of Legacy probation systems. This role would suit senior software engineers with strong experience delivering cloud-native applications, APIs and digital services within complex enterprise environments. You'll play a key role in building the next generation of platforms and services that will replace critical Legacy systems and support the wider transformation programme. Working as part of a multidisciplinary delivery team, you'll collaborate with architects, product teams, engineers and...

Senior Full Stack Developer - Outside IR35 - Contract - SC Essential We are looking for a senior full-stack developer to join our team, working collaboratively in a fast-paced environment with some ambiguity. This is a senior dev role with a focus on supporting more junior members of the team and sharing that with the existing tech lead. The product is a note-taking and summarisation tool for use in local government, for which the remaining technical work mainly comprises infrastructure, evaluations, technical improvements, and UCD-driven product features. Must have: Experience mentoring junior developers Previously given responsibility for a chunk of delivery Comfortable working in JavaScript and TypeScript + Node Full-stack developer Nice to have: previous experience with AWS, Terraform, any UK government projects Slightly nice to have but lower priority: LLM/AI experience and Next.JS £600 per day outside IR35 Start date: 02/11/2026 End date:...

Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm requirement 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 firm. Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm Key Skills: A career software developer with lead or principal-level experience Insurance experience, ideally within the London Market Strong hands-on Java and/or React, or full-stack experience Business-facing and proactive, comfortable working closely with stakeholders Experience using AI-assisted development tools The ability to guide developers and raise technical standards across a team Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Outside IR35 - Hybrid (London) - Initial Contract with View to...

SC Cleared Developer - TypeScript, React, Kotlin, AWS £market rate (Outside IR35) 6 Month Contract Primarily Remote - occasional London/Manchester travel I'm currently working with a leading organisation seeking Developers for a major public sector programme. You'll be working across a modern full-stack environment, supporting the development and delivery of cloud-based applications using React, TypeScript, Kotlin and AWS. Key Requirements: Proven experience as a Developer with strong TypeScript/React Must hold active SC Clearance. Kotlin and Spring Boot development. Hands-on AWS experience across ECS, Lambda, S3, SQS, RDS, IAM, CloudWatch and OpenSearch. Terraform and Infrastructure as Code. MySQL and GitHub. Google Analytics and Tag Manager. Strong experience delivering within modern cloud environments. Nice to have Immediate availability Flexibility to get to office as and when required If you're interested in this role, click 'apply now' to forward an...

SC Cleared Developer - TypeScript, React, Kotlin, AWS £market rate (Outside IR35) 6 Month Contract Primarily Remote - occasional London/Manchester travel I 'm currently working with a leading organisation seeking Developers for a major public sector programme. You 'll be working across a modern full-stack environment, supporting the development and delivery of cloud-based applications using React, TypeScript, Kotlin and AWS. Key Requirements: Proven experience as a Developer with strong TypeScript / React Must hold active SC Clearance. Kotlin and Spring Boot development. Hands-on AWS experience across ECS, Lambda, S3, SQS, RDS, IAM, CloudWatch and OpenSearch. Terraform and Infrastructure as Code. MySQL and GitHub. Google Analytics and Tag Manager. Strong experience delivering within modern cloud environments. Nice to have Immediate availability Flexibility to get to office as and when required If you 're interested...

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...

Python Developer (Data Applications and AI Engineering) Contract: 6 to 12 months (longer term available at a lower day rate) UK based, fully remote Outside IR35 Start ASAP My client, a specialist consultancy within Data and AI is looking for a hands on Python developer to join its data science team, working with a client to build data applications and automated pipelines that replace manual processes. You will use AI coding tools every day to speed up how you build, test and deliver. This is a delivery role. You will be embedded in an established, mature team, working closely with business users and taking solutions from first prototype through to production. What you will be doing Building and deploying Python web applications, mainly in Shiny, from rapid prototypes to production Creating responsive, intuitive interfaces for data and AI applications Integrating applications with Snowflake, Snowflake Cortex and REST APIs Building and maintaining automated data...

£325/day Outside IR35 Hybrid | Central London (2 days per week onsite) Initial 6-Month Contract .NET Developer (Contract) We re looking for a hands-on .NET Developer to join a growing technology team working on a mix of established business applications and modern cloud-based solutions. This is an excellent opportunity for a developer who enjoys solving real business problems, enhancing existing systems, and contributing to ongoing modernisation projects. You ll be working across the full development lifecycle, collaborating with business stakeholders and technical colleagues to deliver reliable, scalable applications that support key business operations. Responsibilities Develop, maintain and enhance applications built with C# and .NET Work across both Legacy and modern web applications Build and optimise SQL Server databases, queries and stored procedures Support application upgrades and modernisation initiatives Develop and consume REST...