9 contract net software engineer jobs found in London, Greater London

Senior C# Developer - Investment Banking £750/day | Outside IR35 | 12-month rolling contract | Largely Remote If you're a strong C# engineer with genuine Event Sourcing experience and interested in a long term banking project, get in touch I'm working with a leading investment bank looking for a strong Senior C# Developer to join a long-term project building and enhancing a large-scale Structured Notes platform. This is a hands-on engineering role with approximately 80% Back End C#/20% frontend, working on complex, distributed systems. The role: You'll be working across a modern .NET platform, designing and developing scalable Back End services while contributing to the Angular Front End where required. The environment involves large-scale distributed systems, asynchronous processing, Multithreading and event-driven architecture. Core technical requirements: Excellent C#/.NET development experience Strong .NET 8 knowledge Previous commercial Event...

🚀 Senior C# Developer – Investment Banking £750/day | Outside IR35 | 12-month rolling contract | Largely Remote I’m working with a leading investment bank looking for a strong Senior C# Developer to join a long-term project building and enhancing a large-scale Structured Notes platform . This is a hands-on engineering role with approximately 80% backend C# / 20% frontend , working on complex, distributed systems. The role: You’ll be working across a modern .NET platform, designing and developing scalable backend services while contributing to the Angular frontend where required. The environment involves large-scale distributed systems, asynchronous processing, multithreading and event-driven architecture. Core technical requirements: • Excellent C# / .NET development experience • Strong .NET 8 knowledge • Previous commercial Event Sourcing experience – essential • Strong understanding of multithreading, concurrency and asynchronous...

A leading company is hiring a AI Platform Engineer (MLOps/GenAI). Hybrid position - 6-month rolling contract, paying up to £1100 per day, Outside IR35 depending on experience. Experience and skills required for the AI Platform Engineer (MLOps/GenAI) Experience building, deploying, and maintaining machine learning and generative AI solutions (e.g., LLMs, embeddings, retrieval patterns, vector search, model fine‑tuning). Strong MLOps knowledge across continuous integration, deployment, monitoring, and evaluation of AI/ML models. Experience with AI infrastructure (orchestration pipelines, GPU compute, model hosting services) and scalable AI data structures (including vector databases/semantic search). Deep software engineering capability in .NET Core/C# and modern back-end engineering, with flexibility to work across languages such as Python, Go, or TypeScript. Strong understanding of distributed systems, microservices, cloud-native patterns, and modern data stores...

C#, WPF, .NET Developer - Hybrid - Outside IR35 - 12 month contract C#, WPF, .NET Developer is required by global company for an initial 12-month contract. The successful candidate will have experience with detailed design, development, implementation, integration, and testing of software in C# to build windows/web-based applications. The ideal contractor would have experience in software development in C# (.NET Core 2.1+, .NET Framework 4.6+) and Visual Studio 2022. Experience in WPF, user interface design and MVC/MVVM design patterns. Experience with connecting to and consuming RESTful web services. Experience with generic design-patterns (Dependency Injection, Inversion of Control and similar) and .NET Frameworks (MVVM, WPF, MEF, Entity Framework) in the construction of large and complex software applications. Experience of using version control (GIT), change control and code quality control/review processes. Experience of working in SCRUM...

Role: Senior Applied AI Engineer (Defence Contractor) Rate: £700–£900 per day, dependent on experience Location: Oxford / London Engagement: Contract, outside IR35: initial 6-month term with strong likelihood of extension Start: Immdediate start. Hybrid, with regular time on site in Oxford or London Security clearance: You must be eligible for UK security clearance (BPSS and SC. We require applicants to hold UK passport and 5 years of continuous UK residency. We can sponsor clearance for the right candidate, but given the contract nature of this role we strongly prefer candidates who already hold an active, transferable SC; DV is an advantage. If you are not eligible, we will not be able to progress your application. A note from the Founders Oxford Dynamics is at an inflection point. We build frontier AI for environments where the cost of a wrong decision is high: defence and national security, critical infrastructure, and commercial...

DevOps/Cloud Engineer (AWS) | Active SC Clearance Required Rate: £550-600 per day (Outside IR35) Location: Hybrid, London (2 days per week onsite) Duration: Initial 6-month contract Start Date: ASAP Clearance: Active SC Clearance (Mandatory) The Opportunity We are supporting a major government programme seeking an experienced DevOps/Cloud Engineer to join a high-performing cloud engineering team. This role will focus on the design, automation and support of secure cloud infrastructure, enabling the delivery of modern digital services at scale. You will work closely with software engineers, architects and security teams to build resilient platforms, improve deployment processes and drive cloud adoption through infrastructure automation and DevOps best practices. Key Responsibilities Design, build and maintain AWS cloud infrastructure Develop and manage Infrastructure as Code using Terraform Build and improve CI/CD pipelines using GitHub Actions and...

Senior DevSecOps Engineer AWS | EKS | Platform Security | Financial Services ?? Location: London/Hybrid ?? Day Rate: Up to £650 (OUTSIDE IR35) ?? Contract: Initial 6 Months We're supporting a major financial services organisation delivering a next-generation cloud platform that will underpin multiple strategic programmes and engineering teams. As a result, we're looking for a hands-on DevSecOps Engineer to join the platform security function and help build the guardrails, controls and automation that allow product and engineering teams to scale securely by default. This is an engineering-first role focused on AWS, Kubernetes, CI/CD security and platform protection. You'll work alongside Platform Engineering, Developer Platform and Security Architecture teams to ensure security is Embedded into the platform rather than bolted on afterwards. What You'll Be Doing Engineering and maintaining security controls across a multi-tenant AWS platform Implementing and...

Senior DevSecOps Engineer AWS | EKS | Platform Security | Financial Services Location: London/ Hybrid Day Rate: Up to £650 (OUTSIDE IR35) Contract: Initial 6 Months We 're supporting a major financial services organisation delivering a next-generation cloud platform that will underpin multiple strategic programmes and engineering teams. As a result, we 're looking for a hands-on DevSecOps Engineer to join the platform security function and help build the guardrails, controls and automation that allow product and engineering teams to scale securely by default. This is an engineering-first role focused on AWS, Kubernetes, CI/CD security and platform protection. You 'll work alongside Platform Engineering, Developer Platform and Security Architecture teams to ensure security is embedded into the platform rather than bolted on afterwards. What You 'll Be Doing Engineering and maintaining security controls across a multi-tenant AWS...

Robotics Software Engineer - Contract (Outside IR35) 📍 London / Hybrid or Remote | ⏳ 3 months initial, likely to extend About the role A robotics technology company is looking for an experienced Robotics Software Engineer to join their core robotics software team on an initial 3-month contract. The company builds robotics embedded software. Their robotics software team currently consists of a few engineers, supported by additional staff focused on testing and validation. They have a substantial backlog of work and need someone who can get up to speed with the existing codebase quickly and start contributing without significant hand-holding. This is not a junior role, but equally they're not looking for a 20-year veteran. The right person has a few years of relevant, hands-on robotics software experience and has worked on similar problems before. What you'll be doing Working within an existing production robotics codebase, contributing to features and...