Senior .net Developer jobs in Egham

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

Senior C# Developer / Backend Software Engineer (C# .Net) London onsite to £150k Are you an experienced backend focussed C# Developer? You could be progressing your career in a senior, hands-on role at a global Sports Trading business, earning substantial bonuses. As a Senior C# Developer within the trading engine team, you'll collaborate to design and develop real-time trading systems, you'll...

C#.NET Developer – Financial Systems Developer Ref: YC46978 A leading Japanese IT company with a central London office is seeking a C#.NET Developer for its Financial Systems Team. They welcome candidates with knowledge of banking, securities, or insurance operations, and experience developing with C#.NET. Ideal candidates have led enhancements, maintenance, or improvements of existing systems....

You will join a cross-functional product engineering team focused on the evolution and modernisation of a core InsurTech platform. The work centres around building scalable, cloud-native services while improving performance, reliability, and long-term maintainability.

You will be involved in challenging, complex development for industry leading companies, as well as smaller start up projects Centered on a tech stack that includes C# . NET, React AWS, and event-driven microservices, this position is tailored for engineers ready to thrive in modern cloud-based ecosystems.

You will coordinate both internal and external design teams to deliver buildable, compliant and cost-effective solutions aligned with client objectives and project performance targets. This role offers the opportunity to take ownership of high-value, nationally significant projects while joining a secure and growing organisation that prioritises innovation, development and sustainability.

You will work closely with product owners, data teams, and other developers to deliver secure, scalable, and compliant solutions for investors and advisors. Key Responsibilities: - Lead the development of. NET-based backend systems for investment, portfolio, and tax-efficient schemes (EIS/SEIS).

You will develop and consolidate systems, write software, guide a team of developers, and take ownership of several critical platforms.

You will work closely with senior stakeholders including the CTO, COO, Head of Operations, and Project Management.

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

OXBO are pleased to once again be working with an established international renewable energy IPP who are seeking a Senior Development Manager to join their growing London-based team. This company has a strong track record in utility-scale solar, BESS (battery energy storage) and hybrid renewable projects, with an expanding portfolio across the UK and Europe, including operational assets. With...

At Champion Data, our dedicated team are united by sport and driven by data. We strive to revolutionise and transform sport data globally by leveraging our cutting-edge technology and expert team, ensuring we deliver the best possible outcomes for our partners and clients. About the job Champion Data has an exciting opportunity for an experienced and dedicated Senior Developer to join our...

Department: Support Reports To: Application Software Support Manager Location: Remote Salary: £55k - £60k /yr (depending on experience) Contract Type: Permanent – Full Time Role Summary We're looking for an experienced full-stack .NET developer to join our team in a new and exciting role. This role will initially be supporting an array of clients, helping our support team to continue to...

You must have proven experience in winning new clients. - Contract or Perm background is OK.

You will focus entirely on: - Winning new clients

You will not be responsible for candidate sourcing or delivery. We have a strong, dedicated delivery team who will support everything you sell.

On a mission to help people who have been diagnosed with chronic kidney disease, this start-up are looking to bring on a Senior TypeScript Developer, who’s fully embraced AI-assisted development. Their mission is to make life better for people suffering from kidney disease by building one of the first algorithm-based behavioural change programmes. The application that does this brings together...

Senior Backend Developer – Node.js, TypeScript, Kafka - up to £70k Leading E-commerce Brand | Up to £70,000 | Hybrid (2 days/week in London) We’re partnering with a leading e-commerce business that’s scaling a modern, event-driven platform to support high transaction volumes and continued growth. They’re looking for a Senior Backend Developer to join a highly capable engineering team working...

Senior Business Development Manager (12-Month FTC) Are you a seasoned Business Development professional with a passion for driving growth in high-profile legal practices? This is an exciting opportunity to join a leading global law firm’s London office and play a pivotal role in shaping the BD strategy for its Finance, Restructuring, and Structured Finance teams—recognised as market leaders in...

Senior Business Development Manager - Newly Created Role An exciting opportunity has arisen for a Senior BD Manager to join an elite US firm at a pivotal moment of growth and expansion. This newly created role will see you working as the right-hand person to the BD Director, playing a key role in shaping and delivering the firm’s strategic business development initiatives. You’ll work closely...

Job Description Development Management Implementation (DMI) Senior Engineer Are you a dynamic, creative and delivery focused Highways Engineering / Transport Planning professional. Can you use your first-rate technical skills to assist Tetra Tech in a new and exciting relationship with Hertfordshire County Council (HCC)? If so, we would like to hear from you. HCC has recently awarded Tetra...

Software Developer / Engineer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a Software Developer you'll collaborate with a team of highly intelligent technologists and finance professionals to develop...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.