101 to 123 of 123 C# Jobs in the City of London

Opportunity: Senior C# Quantitative Developer | Capital Markets Technology Location: London Type: Full-time/Contract Rate: £800 p/d (Outside IR35) Client: Leading Global Investment Bank Hybrid: 1 day per week in the office Are you ready to be at the forefront of technology and finance? Our client … tier investment bank, is looking for a Senior C# Quantitative Developer to join their high-impact Capital Markets Technology team in London. This is a unique opportunity to bridge the worlds of quantitative analysis and software engineering—delivering cutting-edge solutions to drive pricing, risk management, and liquidity strategies ...

will develop and consolidate systems, write software, guide a team of developers, and take ownership of several critical platforms. This includes an in‐house C# PnL and Risk system that performs real‐time portfolio valuation, alongside other components that will be integrated into a cohesive, modernised core platform. You will … date) accounting reconciliations Particular interest in candidates with Fixed Income and Rates experience Technical Skills Strong computer science fundamentals Hands‐on development experience in: C# and .NET (essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such ...

.NET Developer, C#, WPF - Asset Management - London (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Founded in 1930, our client is a leading investment manager with offices in Europe, Asia and North America. They manage over £120 billion … across all asset classes and employ over 2000 people around the world. Working in tandem with Microsoft they are developing revolutionary .NET/C# software applications that have attracted much attention in the trade press. We are seeking two .NET Developer to work on these exciting Greenfield enterprise level .NET ...

.NET Developer, C#, WPF - Mobile Telecommunications - London (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Established in the early 1990s and listed on the London Stock Exchange our client is an instantly recognizable brand within the mobile telecommunications … launch of several new products. As such they are looking to recruit 6 .NET Developer to help design and develop the .NET/C# software applications that will be the backbone of this exciting new generation of products and services. The ideal .NET Developer candidates will have a skill ...

title: C# Senior Software Engineer (VP) Client: Investment Firm Experience Level: 5+ years' Salary: - Up to £130k + Bonus Location: London (Hybrid) An elite investment client are searching for Senior C# Developers to join a group of the highest-regarded talent around! Role This is to build … latest frameworks within .Net Skills/Experience Proven experience working as a Software Engineer within the financial services domain Knowledge of C# .Net core Degree in Computer Science/Engineering is preferred! Experience with any web technologies including WPF or React is sought after ...

Senior C# Engineer City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting-edge technology, and play a key part … culture where innovation and creativity are encouraged Great work-life balance supported by wellness perks, healthcare, and team socials Key Requirements Strong background in C# and the .NET platform (working with the latest versions) Database knowledge (SQL Server, Oracle, or equivalent) Degree in Computer Science or related subject Fluent ...

seeking an experienced .NET Developer to join our Business Intelligence IT team. You will develop and support SMBC BI business applications using C# and MS .NET Framework , working across SQL Server and Oracle databases. This role involves both new development and maintenance of existing applications , ensuring stability and compliance with … change management procedures. Key Responsibilities Develop and maintain C#/.NET applications for BI systems. Analyse business requirements and design technical solutions. Write and optimise T-SQL and PL/SQL scripts for data analysis. Collaborate with DBAs and infrastructure teams in London and New York. Support production environments, troubleshoot ...

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. As an Engineer you will … growth and excellence. Ideal candidates hold a Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. A .NET, C# and backend or full-stack development is essential, complemented by strong problem-solving skills, an agile mindset, and excellent communication. What You'll Get: Competitive salary ...

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 … 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 ...

Azure AI solutions, including Azure OpenAI Service, Azure Cognitive Services, and Azure Machine Learning Requirements Extensive experience with Azure AI solutions, programming expereince (Python, C#, or Java) Thisis a brilliant new role, and an opportunity to join a business who are genuinley growing this team to be a future centre … team that will significantly contribute to the digital transformation this STEM business Role requirements Strong Programming Skills: Proficiency in programming languages such as Python, C#, or Java, with a deep understanding of software development principles. Extensive experience with Azure AI solutions, including Azure OpenAI Service, Azure Cognitive Services, and Azure ...

Senior DevOps Engineer - FinTech SaaS Scale-Up - London/Remote (Tech Stack: DevOps Engineer, AWS, Azure, Kubernetes, Docker, Linux, Istio, Terraform, Helm, Go, Python, C#, Prometheus, Grafana, ELK, Ansible, Concourse, Nexus, SonarQube, Cloud, DevOps Engineer) We're looking for a Senior DevOps Engineer (AWS, Kubernetes, Terraform, Helm) to join … just follow it. Our client is seeking a Senior DevOps Engineer with experience in: AWS, Azure, Kubernetes, Docker, Linux, Istio, Terraform, Helm, Go, Python, C#, Prometheus, Grafana, ELK, Ansible, Concourse, Nexus, SonarQube, Cloud, DevOps Engineer. If you're missing one or two areas, don't worry - training and mentorship ...

Back End Developer (C#, .NET, SQL) We're supporting a well-backed SaaS scale-up in the learning-tech space who are hiring a Backend Developer to join their growing engineering team. If you enjoy building real features end-to-end, not just patching bugs, this is a great fit. … What you’ll be doing Building and maintaining backend services in C#, ASP.NET, .NET Working heavily with MS SQL and API development Contributing to new feature design, architecture discussions, and code reviews Helping shape a platform used by thousands of users Collaborating with a small, supportive team where your work ...

C++ Software Engineer/Developer (Windows C/C++, C#) London to £70k FTC Are you a skilled C++ Software Engineer looking for a new opportunity? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks … 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 ...

internal and external applications in collaboration with other multi-disciplinary teams. Design, develop, test and operate data storage workflows and solutions based on C++, C# and Python and/or other suitable languages Leverage Microsoft Power Platform technologies (Power Apps, Power Automate, Power BI, etc.) to build and enhance business … troubleshooting, and documentation for all developed tools and workflows Design, develop, test, support and deploy custom web and mobile applications based on .NET (Blazor, C#), C++. Gather customer software requirements and develop related software applications and programs Design and develop testing and maintenance procedures and activities Develop and write high ...

support APIs, messaging components, orchestration workflows and data access layers. Develop high-quality, secure and maintainable code using approved tools and languages (such as C# and Python). Contribute to CI/CD pipelines, automated testing and peer code reviews. Collaborate with Product Owners, Analysts, Application Engineers, Data Engineers … orchestration. Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid and Azure Functions. Proficiency in back-end development (e.g. C#, Python) with a strong focus on secure coding practices. Hands-on experience with CI/CD pipelines, automated testing and modern software engineering practices. Strong ...

reusable and scalable integration assets to improve delivery speed and consistency Produce clean, secure, and maintainable backend code using modern development languages such as C# or Python Support automated build, test, and deployment processes, including peer code reviews Deliver work within iterative, agile-based development cycles Assist with incident investigation … messaging, event driven, orchestration) Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid, Functions Proficiency in back end development (C# or Python) with a strong focus on secure coding Experience with CI/CD, automated testing, and modern engineering practices Strong problem solving skills ...

We are searching for Senior Rust specialists to join one of our well established and highly regarded Digital Assets focused trading firms, either in London or for relocation to Hong Kong with a comprehensive package. ...

Title: C# Developer - Leading Trading Firm - Up to £100k + Bonus + Package Client: Elite FinTech Firm Experience Level: 2+ years' Salary: Up to £100k + Bonus + Package Location: London (Flexible Working) An elite fintech firm are searching for C# Developers to join a group of the highest-regarded … high performance tools - utilising cutting edge technology across a diverse range of greenfield projects Tech driven environment - most recent versions/frameworks of C# used daily Skills/Experience Strong knowledge of C# STEM degree - strong computer science fundamentals (Preferred ...

Backend Software Engineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Sports Tarding business, earning substantial bonuses. As a Backend Software Engineer within the trading engine ...

Test Lead - £700-£750 per day inside IR35 - London (hybrid 3 days per week in the office) - C# experience Please note: This role requires candidates to be able to commute into the London office 3 days per week. La Fosse have partnered with a global organisation to recruit a Test … Lead into an established team. The SDET will own the automation strategy, develop and maintain test scripts using C# and Selenium , implement behaviour-driven testing with a BDD framework , and ensure comprehensive test coverage aligned with business requirements Key requirements: Strong C# skills for building automated tests Experience using Selenium ...

role in designing seamless user experiences and visually compelling interfaces across a range of web-based products built with React , Blazor , and C# . Youll collaborate with talented engineers, product managers, and stakeholders to deliver innovative solutions that make complex financial data clear and accessible. If youre passionate about crafting … Responsibilities Lead the end-to-end UX and UI design process for responsive web applications. Collaborate closely with product and engineering teams (React, Blazor, C#) to turn concepts into interactive, user-friendly designs. Conduct user research, wireframing, prototyping, and usability testing to validate design decisions. Build and maintain design systems ...

Tech Lead Azure/.NET Remote/London (occasional office visits) £95,000 £100,000 + c.20% bonus + excellent benefits Azure | C# | .NET | APIs | Platform Leadership A senior Tech Lead is required to join a well-established e-commerce brand operating at scale, supporting high-throughput, business-critical backend … into code when needed to unblock the team, support delivery under pressure, or build proof-of-concepts Key Skills & Experience Strong commercial experience with C# and .NET in backend, API-driven systems Significant, in-depth Azure experience, particularly with Azure PaaS (not Azure-light exposure) Proven experience operating ...

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 ...