15 of 15 Part-Time .NET Jobs in the City of London

between business logic and actuarial models. Key Responsibilities Lead the design and delivery of high-quality insurance-based applications and system integrations. Provide hands-on coding expertise across C#, .NET Framework/Core, MVC , and Web APIs . Collaborate with business and actuarial teams to develop and maintain Rulebook-based pricing solutions . Produce technical specifications, ensure robust testing More ❯

functional teams to deliver robust, future-ready solutions. What Theyre Looking For Strong Unity development experience, including URP/HDRP pipelines, Addressables, and Job System . Skills in C# (.NET 6/8), Cesium for Unity, PostgreSQL/PostGIS, and Entity Framework Core . Familiarity with modern frontend frameworks such as React with TypeScript . Strong Agile, DevOps, and More ❯

microservices, and integration design patterns. Proficient in RESTful APIs, JSON, XML, and messaging protocols. Familiarity with DevOps practices and CI/CD pipelines using Azure DevOps. Experience with C#, .NET, and scripting languages like PowerShell. Preferred Certifications Microsoft Certified: Azure Solutions Architect Expert or Azure Developer Associate. Certifications in MuleSoft, Solace, or other integration platforms are a plus. Soft More ❯

dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling) Experience in agricultural or land management sectors If you are More ❯

tuning and query optimisation ETL processes, data migration, and database design (desirable) Additional Skills: API integration Azure DevOps Application Lifecycle Management Workflow design (e.g., Visio) UX/UI principles .NET (beneficial but not essential) Soft Skills & Sector Knowledge: Strong communication and stakeholder engagement skills Insurance broking or underwriting experience (a plus, not essential) If you have the above and More ❯

Senior .NET Software Engineer | London | 80,000100,000 + Bonus + Hybrid Location: Central London (Hybrid: 1-2 days in office) Salary: 80,000100,000 + performance bonus + excellent benefits Tech: .NET 8, C#, AWS, Microservices, REST APIs, SQL, CI/CD, Docker/Kubernetes The Opportunity We are working with a high-growth SaaS organisation in … Central London that is expanding its platform and engineering function, seeking a Senior .NET Software Engineer to join its talented, cloud-first team. This is an outstanding opportunity to work in a modern engineering environment where quality, scalability, and automation are central to the culture. You will take ownership of new features, lead technical discussions, and contribute directly to … based environment. Expect greenfield projects, cutting-edge technology, and the chance to help shape the evolution of a platform used by thousands of customers. The Role As a Senior .NET Software Engineer, you will play a key role in both development and design, responsible for: Building and maintaining scalable backend services using .NET 7/8 (C#) Designing More ❯

a contract basis for an initial 6-month assignment. The role is hybrid with flexibility on location. Skills required: React-heavy development (approximately 75% of the role) Python and .NET understanding/experience Strong full stack development and problem-solving skills Active SC Clearance This role has a short interview process with immediate start dates available. Full Stack Developer More ❯

Development Lifecyle Good understanding of STL and Boost A very confident communicator Bonus: Experience working in the financial sector with financial knowledge Experience in a secondary programming language e.g. .Net or Python Interest in cloud technologies e.g. AWS What you will gain as a C++ Developer: Working alongside some extremely smart and passionate engineers Ability to take on considerable More ❯

trading lifecycle. Experience supporting CTRM applications and related systems, with strong awareness of trade workflow and operations. Familiarity with Risk, PnL, and PnL attribution concepts. Programming experience in Java, .NET, or similar; knowledge of Endur OpenJVS is an advantage. Proficient in SQL and database troubleshooting. Comfortable supporting a global team across multiple regions. Eagerness to learn and support both More ❯

Lead .NET Software Engineer | London | 95,000120,000 + Bonus + Hybrid Location: Central London (Hybrid: one a fortnight onsite) Salary: 95,000120,000 + performance bonus + excellent benefits Tech: .NET 8, C#, AWS, Microservices, REST APIs, SQL, CI/CD, Docker/Kubernetes The Opportunity We are partnering with a high-growth SaaS organisation in Central … London that is scaling its cloud-based platform and strengthening its engineering leadership. As part of this growth, they are seeking a Lead .NET Software Engineer to guide a talented team within a modern, high-performance engineering environment. This is an opportunity to lead from the front, owning architectural direction, driving technical excellence, and ensuring delivery of scalable, resilient … in a cloud-first, microservices-driven environment. Youll be a hands-on leader, balancing coding, mentoring, and strategic influence across multiple teams and initiatives. The Role As a Lead .NET Software Engineer, you will combine hands-on technical expertise with leadership responsibilities, including: Designing and leading the development of scalable backend services using .NET 8 (C#) Architecting cloud More ❯

Full Stack Engineer | .NET & React | Financial Services | London Were partnered with a leading global energy and commodities organisation thats investing heavily in its digital transformation journey. With a strong presence across EMEA, the Americas, and APAC, the business is scaling its in-house analytics platforms to drive smarter, data-led decisions across trading, logistics, and infrastructure operations. The role … and cross-functional design sessions. London City, UK Highly competitive salary + benefits package Requirements: Degree in Computer Science, MIS, or related discipline. 47 years experience with C#/.NET technologies, ideally including ASP.NET Core and Web APIs. 3+ years experience developing front-end applications using React, or similar frameworks, but React is the strong preference here. Strong JavaScript More ❯

web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based runtime … and security teams to meet operational and compliance requirements. The toolkit youll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible Quality … Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT). More ❯

Backend Developer - C# .Net Contract Length: Initial 6 months (with potential for extension) Location: London Rate: Up to 700 per day, Outside IR35 Our client, a leading Oil and Gas firm with a global presence, is seeking a skilled C#.NET Developer to join their dynamic team. The role will focus on enhancing and maintaining their bespoke LNG trading and … regions. Role Overview: The successful candidate will work closely with Project Managers, Development Leads, and Business Analysts to support the customization and development of their systems. This includes enhancing .NET-based applications and integrations, with a focus on EOS and physical commodities. Responsibilities: Develop, maintain, and optimize applications using the .NET Framework, including WinForms and WCF services. Collaborate … sprint plans and deliverables. Provide support for system enhancements related to physical commodity trading, specifically within the LNG domain. Technical Skills: Proven experience in C#.NET development, specifically within the .NET Framework (experience in .NET Core is advantageous). Strong understanding of database design and development, particularly with SQL Server. Proficiency in WinForms and WCF for application development. Familiarity More ❯

Job Opportunity: Backend .NET Developer Contract Type: Permanent Location: London On-site full-time Salary: 90,00095,000 DOE Were working with a privately held group with a strong presence in the commercial property sector, known for delivering high-quality environments that support productivity and collaboration. Operating from prime central locations, they continue to invest in scalable digital platforms … and technical excellence across their portfolio. As part of this growth, theyre now looking for a skilled Backend .NET Developer to join their agile digital team. This is a hands-on role with real ownershipdesigning and building backend systems, collaborating with stakeholders, and shaping the technical roadmap across a suite of integrated platforms. Ideal Experience Strong knowledge of .NET More ❯

M365 and Azure ecosystems . Youll be working closely with core Microsoft platform teams to build, automate, and optimise solutions across Exchange Online, SharePoint, and Azure leveraging technologies like .NET, PowerShell, Graph API, and Azure PaaS services . What youll bring: Deep experience with C#/.NET (6/7/8) and service/backend development. Strong More ❯