201 to 225 of 242 C# Jobs in the Thames Valley

Senior Developer Milton Keynes (hybrid) £40,000 - £60,000 Our client requires a Senior Developer with strong experience in C#, Azure (or similar cloud-based web applications) and JavaScript to join their growing team. You will have the flexibility of hybrid working and spend 3 days a week in their office. You will play a key role in designing, building … and maintaining high quality software solutions, while mentoring junior and mid-level team members, to help them grow in their careers. Responsibilities: Design, develop and maintain scalable applications using C#, .NET and Azure Provide technical mentorship, leadership and guidance to junior and mid-level Developers Drive continuous improvement across development processes, team productivity and Agile workflows Collaborate closely with cross … Stay up to date with emerging technologies and propose innovative solutions Look after complex coding tasks Skills: Proven experience as a Senior Developer or similar role Strong proficiency in C#, .NET, Azure Solid experience with JavaScript and modern front-end frameworks Excellent communication and leadership skills Ability to deliver complex projects to tight deadlines Outstanding attention to detail and with More ❯

Senior Developer Milton Keynes (hybrid) £40,000 - £60,000 Our client requires a Senior Developer with strong experience in C#, Azure (or similar cloud-based web applications) and JavaScript to join their growing team. You will have the flexibility of hybrid working and spend 3 days a week in their office. You will play a key role in designing, building … and maintaining high quality software solutions, while mentoring junior and mid-level team members, to help them grow in their careers. Responsibilities: Design, develop and maintain scalable applications using C#, .NET and Azure Provide technical mentorship, leadership and guidance to junior and mid-level Developers Drive continuous improvement across development processes, team productivity and Agile workflows Collaborate closely with cross … Stay up to date with emerging technologies and propose innovative solutions Look after complex coding tasks Skills: Proven experience as a Senior Developer or similar role Strong proficiency in C#, .NET, Azure Solid experience with JavaScript and modern front-end frameworks Excellent communication and leadership skills Ability to deliver complex projects to tight deadlines Outstanding attention to detail and with More ❯

systems communicate, scale, and deliver value across the business. The Role You’ll be responsible for designing and developing high-performance integrations that connect core systems and partners, using C#, Python, and Azure cloud technologies . This is a hands-on engineering role that also offers the opportunity to influence architecture, best practices, and technology direction. What You’ll Be … Doing Designing, building, and maintaining high-throughput, reliable integration components using C# and Python Developing and optimising SQL interactions that underpin APIs and message-driven workflows Implementing asynchronous messaging via Azure Service Bus (or similar) to decouple systems and ensure scalability and resilience Building workflow automations with Azure Logic Apps to orchestrate processes and connect enterprise systems Managing API exposure … long-term maintainability Championing best practices around API versioning, secure messaging, error handling, monitoring, and CI/CD automation What We’re Looking For Strong hands-on experience with C# and Python in production settings Proven proficiency in SQL – from database design to performance tuning Practical experience with Azure Service Bus (queues, topics) or comparable enterprise messaging technologies Experience using More ❯

Software Developer - C# Software Developer required by a leading Cloud Technology company based in Bracknell. The company are working on cutting-edge technology including AI and propensity modelling. This is a brand-new position due to growth and will join a well-established, high calibre development team. The company operate on a hybrid model which involves 3 days in the … and 2 days from home. Essential experience: Degree in Computer Science or other STEM subject ideally from a Russell Group University 3+ years' experience in a software development role C# SQL Server Source control, ideally Git Experience working within an Agile environment Any experience in the following would be advantageous: .NET 5/6 JavaScript, TypeScript and frameworks such as More ❯

to continuous improvement WHAT YOU’LL BRING Strong experience with Service Fabric and Kubernetes Proven experience architecting and scaling B2B SaaS platforms Strong full-stack technical expertise – especially across C#, JavaScript, and React Experience integrating with APIs and identity platforms (e.g. Microsoft Entra ID/Azure AD) Solid understanding of cloud infrastructure – ideally Azure and Service Fabric A collaborative mindset … and client delivery A pragmatic, hands-on approach to problem-solving and decision-making Background in IAM or SSO is a bonus OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape the More ❯

Managers. Title: Test Automation Engineer - QA Company: Consultancy - Financial Location: London Hybrid (often 3 days a week in office) Salary: £50,000-£65,000 + benefits Tech essentials : Backend (C#/Java/Python) SQL, Specflow/BDD Nice to have: CI/CD pipes, GitHub Actions, YAML, Powershell Interview process: 1 stage remote video interview Why should you be … endless and they are active looking for future leaders Why they’ll be interested in you - You have solid Programming experience, with a keen interest in Software Quality & Testing C# or Python or Java knowledge needed You probably have a relevant degree at 2:1 level or above You may have 1-3 years commercial experience, but they're open More ❯

ensuring issues are resolved efficiently. Collaborate closely with the development team to rapidly identify, report, and fix bugs, improving product reliability and user satisfaction. Contribute to feature development using C#, Angular, and SQL, enhancing product performance and functionality. Leverage AI-powered tools to streamline support, automate repetitive tasks, and boost team efficiency. Create clear, reusable documentation for processes, common solutions … explain technical concepts to both technical and non-technical users. Comfortable working independently and as part of a collaborative team in a fast-paced environment. Hands-on experience with C#, Angular, and SQL, with a willingness to deepen expertise. Familiarity with version control systems (Git) and modern development practices. Desirable Skills & Experience Curiosity about or experience with AI-powered development More ❯

day brings a new challenge, a new skill to learn, and the chance to see your work make a real difference. What You’ll Be Doing Developing solutions in C# (and occasionally Dart and other languages) Designing user-friendly interfaces for technical operators and engineers Creating tools for real-time monitoring, control, and experimentation Collaborating closely with experts in hardware … excited by the crossover of software and hardware, and who thrives in a collaborative environment. You’ll fit well if you bring: 2+ years of professional development experience Strong C# skills (extra kudos if you’ve touched other languages) Experience working with Git or similar tools A problem-solving mindset and a methodical approach to debugging Good communication and a More ❯

day brings a new challenge, a new skill to learn, and the chance to see your work make a real difference. What You’ll Be Doing Developing solutions in C# (and occasionally Dart and other languages) Designing user-friendly interfaces for technical operators and engineers Creating tools for real-time monitoring, control, and experimentation Collaborating closely with experts in hardware … excited by the crossover of software and hardware, and who thrives in a collaborative environment. You’ll fit well if you bring: 2+ years of professional development experience Strong C# skills (extra kudos if you’ve touched other languages) Experience working with Git or similar tools A problem-solving mindset and a methodical approach to debugging Good communication and a More ❯

Looking to excel your career in a start-up environment? C# Developer – VC-backed Cloud Security 💰 Salary up to £120k + equity 📍 London 5 days in office 🌎 Visa sponsorship available We have recently partnered with a rapidly growing VC-backed startup who develop technology to identify and minimize the effect of security incidents, with the aim of cutting response times … to minutes. Their solution is built for rapid deployment and ease of use, enabling organisations to handle threats far more effectively. They are now on the hunt for a C# Developer to work on the system that platform processes billions of events every week, powered by modern cloud infrastructure and innovative methods. 👀 Experience required as a C# Developer: Russell Group … university 1st Class Degree in Computer Science (or related – Maths, Physics, Engineering) 2-6 years experience in C# Strong computer science fundamentals End-to-end project experience (from design, to build, to deployment) 💡 What you’ll do: Write clean, scalable code in C# (also open to Python & Go engineers) Drive innovation using AWS and GCP Build and scale platform capabilities More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . With millions … and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and rendering pipelines . More ❯

C++ Developer/Backend Software Engineer (Windows C/C++, C#) London to £70k FTC Are you a skilled C++ Developer? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a C++ Developer you will join an Agile team focussed on building … software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day. Location/WFH: You'll join colleagues in the City office three More ❯

eFX Algo IT team. The team develops the pricing, hedging and low latency order and price distribution team systems for the eFX desk. The team consists of Java and C# developers, developing server-side and UI components, respectively. This role is specifically a low-latency Java role, encompassing pricing work, hedging work, market connectivity work and associated services around that. … FATCA, EMIR, MiFID), Pricing & Valuation, Organizational Transformation & Process Improvement. IT & Information systems consulting: Business Analysis, Project Management, Change management, Front Office Support (functional and technical), Development (e.g C++, Python, C#, Java, VBA), Financial Software (e.g. Sophis, Murex, Summit, Calypso), IT Transformation & Innovation. As part of Quanteam Group, Quanteam UK & PL has today more than 80 consultants, working for major Capital More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency in C# and More ❯

Senior Cloud Software Development Engineer in Test (SDET) Ciphr has an exciting opportunity for a Senior Cloud Software Development Engineer in Test (SDET) to join the team as we grow and develop. Youll be responsible for leading testing of the More ❯

Senior Cloud Software Development Engineer in Test (SDET) Ciphr has an exciting opportunity for a Senior Cloud Software Development Engineer in Test (SDET) to join the team as we grow and develop. You’ll be responsible for leading testing of More ❯

The Client My client is a market leading FinTech business that spun-out of one of the largest and most successful hedge funds in the world. Their offering is a suite of technology and investment management infrastructure services that they More ❯

Are you a software developer who enjoys working with financial markets and innovative technology? Spun out of one of the most successful hedge funds globally, you'll get the chance to work with likeminded people on an innovative project. You More ❯

your work on live trading decisions. High-Visibility Projects – Deliver technical solutions that are business-critical, fast-paced, and directly aligned with P&L outcomes. Tech Stack – Work across C#, SQL, and Excel/VBA with opportunities to introduce Python and modern data tools as the role evolves. Autonomy & Ownership – Shape your own solutions, from idea through to deployment, in … them into production. Your work will blend short-term delivery with longer-term technical improvements, always focused on speed, stability, and reusability. Expect to work across technologies such as C#, SQL, and Excel/VBA, with opportunities to incorporate Python and modern data frameworks as projects evolve. What You’ll Need Solid background in front-office or trading technology within … financial services Strong development experience across C#, Excel/VBA, and SQL Understanding of financial products, ideally spanning Fixed Income, Derivatives, or other cross-asset classes A hands-on approach and the confidence to collaborate directly with trading and risk teams The ability to balance fast-paced delivery with structured, maintainable development practices Curious to explore new tools and technologies More ❯

Excellent opportunity for a QA Engineer with strong hands-on experience in C#, Visual Studio. If you enjoy working across both frontend and backend systems, are passionate about automation then this could be the ideal role for you. About the Role In this position, you'll be a key contributor to the quality assurance efforts of a cutting-edge Microsoft … team transitions from Selenium. This is a hybrid role, primarily remote with scheduled monthly in-office collaboration days. Key Responsibilities: Enhance and maintain an evolving test automation framework using C# and Playwright Write clear, maintainable test scripts using Gherkin syntax and ReqNRoll Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature … backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left testing principles Strong knowledge of API testing and backend More ❯

Excellent opportunity for a QA Engineer with strong hands-on experience in C#, Visual Studio. If you enjoy working across both frontend and backend systems, are passionate about automation then this could be the ideal role for you. About the Role In this position, you'll be a key contributor to the quality assurance efforts of a cutting-edge Microsoft … team transitions from Selenium. This is a hybrid role, primarily remote with scheduled monthly in-office collaboration days. Key Responsibilities: Enhance and maintain an evolving test automation framework using C# and Playwright Write clear, maintainable test scripts using Gherkin syntax and ReqNRoll Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature … backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left testing principles Strong knowledge of API testing and backend More ❯

Excellent opportunity for a QA Engineer with strong hands-on experience in C#, Visual Studio. If you enjoy working across both frontend and backend systems, are passionate about automation then this could be the ideal role for you. About the Role In this position, you'll be a key contributor to the quality assurance efforts of a cutting-edge Microsoft … team transitions from Selenium. This is a hybrid role, primarily remote with scheduled monthly in-office collaboration days. Key Responsibilities: Enhance and maintain an evolving test automation framework using C# and Playwright Write clear, maintainable test scripts using Gherkin syntax and ReqNRoll Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature … backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left testing principles Strong knowledge of API testing and backend More ❯

Excellent opportunity for a QA Engineer with strong hands-on experience in C#, Visual Studio. If you enjoy working across both frontend and backend systems, are passionate about automation then this could be the ideal role for you. About the Role In this position, you'll be a key contributor to the quality assurance efforts of a cutting-edge Microsoft … team transitions from Selenium. This is a hybrid role, primarily remote with scheduled monthly in-office collaboration days. Key Responsibilities: Enhance and maintain an evolving test automation framework using C# and Playwright Write clear, maintainable test scripts using Gherkin syntax and ReqNRoll Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature … backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left testing principles Strong knowledge of API testing and backend More ❯

Excellent opportunity for a QA Engineer with strong hands-on experience in C#, Visual Studio. If you enjoy working across both frontend and backend systems, are passionate about automation then this could be the ideal role for you. About the Role In this position, you'll be a key contributor to the quality assurance efforts of a cutting-edge Microsoft … team transitions from Selenium. This is a hybrid role, primarily remote with scheduled monthly in-office collaboration days. Key Responsibilities: Enhance and maintain an evolving test automation framework using C# and Playwright Write clear, maintainable test scripts using Gherkin syntax and ReqNRoll Collaborate in Agile ceremonies, providing early feedback on testability and quality concerns Expand and maintain regression and feature … backend/API testing and assist with security testing initiatives Skills and experience required: 2+ years of experience in software testing with a focus on test automation Proficiency in C# and automation tools like Selenium or Playwright Experience working within Agile/Kanban teams and a strong understanding of shift-left testing principles Strong knowledge of API testing and backend More ❯

Are you an experienced Senior C# ASP .Net Developer looking for a new challenge to enhance your development skills? Our clients are a leading web development agency seeking a Senior .Net Developer to deliver technically excellent web solutions for high profile brands. About the role Working within a team of designers, front-end developers and .Net developers, you will have … others within the development team Preparing functional and technical specification documents Scoping projects, requirements capture and delivering time estimates Essential skills and experience Commercial ASP.NET web application development using C#, MVC and SQL Server with a specific focus on e-commerce and CMS platforms Experience working as technical lead on commercially focused web development projects, and demonstrate an ability to More ❯