351 to 375 of 375 C# Jobs in the City of London

Senior C# Developer within FX Options – Investment Banking – Greenfield Project Location: Central London (3 days per week onsite) Contract Type: Outside IR35 Salary/Rate: Up to ~£825/day DOE A leading investment banking team is embarking on a greenfield build of a high-performance pre-trade application and is seeking a Senior C# Developer with strong experience in … desk to design and build a system that handles large volumes of market data in near real-time. Key Responsibilities: Design and develop scalable, high-performance systems using modern C# .Net (version 9) Build and integrate APIs and microservices to support trading workflows Collaborate closely with FX Options traders to understand business requirements and deliver tailored solutions Contribute to architectural … a greenfield application Participate in the migration of legacy monolithic systems to microservices (Optional) Support front-end development using ReactJS across related applications Required Experience: Expert-level proficiency in C# with a strong grasp of recent language features and .NET ecosystem Proven experience working with FX Options trading systems or directly with Options traders Solid understanding of systems integration, API More ❯

suite includes connectivity to markets and multi-dealer venues, single dealer platform, pricing and trader tools, and supports FX spot, forward, options and deposits. The services are implemented in C#, Java and KDB+. The FX business is looking to improve their electronic footprint by leveraging KDB+ to determine client toxicity, back-testing and parameterisation of trading strategies, real-time generation … 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 ❯

suite includes connectivity to markets and multi-dealer venues, single dealer platform, pricing and trader tools, and supports FX spot, forward, options and deposits. The services are implemented in C#, Java and KDB+. The FX business is looking to improve their electronic footprint by leveraging KDB+ to determine client toxicity, back-testing and parameterisation of trading strategies, real-time generation … 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 ❯

Job Title: Power Platform Developer Location: Bristol (remote) Salary: up to 62,000 Peaple Talent are currently working alongside a worldclass research and development business in Bristol that are expanding and looking for a Power Platform Developer to join the More ❯

Job Title: Power Platform Developer Location: Bristol (remote) Salary: up to £62,000 Peaple Talent are currently working alongside a worldclass research and development business in Bristol that are expanding and looking for a Power Platform Developer to join the 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 ❯

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 Youll 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 that 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 ❯

from prototype to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java) What theyre looking for: Solid professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write production … grade code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance optimisation, and clean software design principles Confident working closely with quants and traders in a fast-paced environment More ❯

from prototype to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java) What they’re looking for: Solid professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write … production-grade code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance optimisation, and clean software design principles Confident working closely with quants and traders in a fast-paced environment More ❯

end, from design to deployment. We move fast, ship daily, and believe in ownership, autonomy, and smart iteration over bureaucracy. You will: Build APIs and services in .NET 8+ (C#) Develop front-end experiences in Next.js + TypeScript Work within a modern Azure-based, serverless environment (Functions, Container Apps, Event Grid, Service Bus) Collaborate in a true DevOps culture - automate … We care about mindset as much as skillset. You are: A strong full-stack or backend engineer (at least 3 years’ experience) Strong Next.js/TypeScript, Good knowledge in C#/.NET. Experienced with serverless, or containerised applications, Azure is a bonus. Driven by a good work ethic and a bias toward delivery Comfortable with freedom and autonomy Open to … or demo features Based in the UK or Portugal (or nearby time zones) Creative, pragmatic, and not overly reliant on AI - you think before you prompt. Our Stack: Backend: C# .NET 8+ and Azure cloud native technologies Frontend: Next.js, TypeScript Infra: Azure (AI Foundry, Container Apps, Functions, Azure Storage, Key Vault, Service Bus, EventHub, Event Grid, and many more). More ❯

Position: QA Tester/Technical Account Manager (TAM) - Enterprise clients Salary: £73,000.00 + 4% bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (1 day per week in the office) Are you a QA More ❯

Position: QA Tester/Technical Account Manager (TAM) - Enterprise clients Salary: 73,000.00 + 4% bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (1 day per week in the office) Are you a QA More ❯

Aderant Support & Configuration Expert, Workflows, SQL, C#, Python, ASP Mainly Remote Aderant Support & Configuration Expert required to work for a law firm based in either London, Manchester or Yorkshire. This role is mostly remote, with circa 2 days per week required in the office. However, as this is a very niche role, this is flexible. Key Skills Required: Demonstrable REAL … transferable skill set which would allow them to pick-up other types of coding fairly quickly o Ideally someone with demonstratable experience of at least one of the following: C# (Pronounced C Sharp), Python or ASP. This is a fantastic opportunity to join a forward-thinking team. Salary dependent on experience. Apply now More ❯

Senior Applications Analyst with Development experience, SQL, Aderant, C#, Python or ASP Mainly Remote A professional services firm is seeking a Senior Applications Analyst with strong development and legal systems experience to come and join their team. This role is mostly remote, with occasional office attendance (London, Manchester, or Harrogate approx. 2 days/week). Key Skills Required: Demonstrable … a transferable skill set which would allow them to pick-up other types of coding fairly quickly. Ideally someone with demonstratable experience of at least one of the following: C# (Pronounced C Sharp), Python or ASP. This is a fantastic opportunity to join a forward-thinking team. Salary dependent on experience. Apply now More ❯

Hedge Fund to work on a systematic FX team, working closely with traders and analysts to build and enhance all systems. The majority of the systems are built using C# with Python and Excel integrations built in. Your code will have a direct impact on real-world trading, and you'll be able to see the results of your work … C#. If you've worked in a similar financial environment and you're keen to broaden your experience, that'll work too but the key thing is you have C# experience. FX experience is desirable but your knowledge of various financial products and derivates will be tested at interview. So, if you're looking for a move into the buy More ❯

Hedge Fund to work on a systematic FX team, working closely with traders and analysts to build and enhance all systems. The majority of the systems are built using C# with Python and Excel integrations built in. Your code will have a direct impact on real-world trading, and you'll be able to see the results of your work … C#. If you've worked in a similar financial environment and you're keen to broaden your experience, that'll work too but the key thing is you have C# experience. FX experience is desirable but your knowledge of various financial products and derivates will be tested at interview. So, if you're looking for a move into the buy More ❯

a team of other Automation Infrastructure Engineers and Analysts Experienced in the following: Infrastructure Development and Automation: Building use cases and creating infrastructure applications using programming languages such as C#, C++, and Python to process data locally Containerization and Orchestration: Using tools like Docker and Kubernetes to package and manage applications for scalable and efficient deployment. Packaged Application and industry … Collaborate with cross-functional teams to ensure data quality and integrity. We are looking for experience in the following skills: Extensive experience with Network and Infrastructure Engineering Experience with C#, C++ and Python Infrastructure API implementation experience Experience with creating and managing Data Pipelines, Experience with Data Analytics Experience with Palantir Foundry & AIP or other equivalent tools Experience of SQL More ❯

a team of other Automation Infrastructure Engineers and Analysts Experienced in the following: Infrastructure Development and Automation: Building use cases and creating infrastructure applications using programming languages such as C#, C++, and Python to process data locally Containerization and Orchestration: Using tools like Docker and Kubernetes to package and manage applications for scalable and efficient deployment. Packaged Application and industry … Collaborate with cross-functional teams to ensure data quality and integrity. We are looking for experience in the following skills: Extensive experience with Network and Infrastructure Engineering Experience with C#, C++ and Python Infrastructure API implementation experience Experience with creating and managing Data Pipelines, Experience with Data Analytics Experience with Palantir Foundry & AIP or other equivalent tools Experience of SQL More ❯

QA Automation Engineer - C#/Linux/Mac/Windows deployment/Remote ***THIS IS A FULL REMOTE WORKING ROLE FROM THE UK ONLY*** ***AGENT/ENDPOINT TESTING EXPERIENCE NEEDED*** ***NEED AUTOMATION TEST SKILLS IN C# *** ***NEED EXPERIENCE OF WINDOWS IT ADMIN OR DEPLOYING WINDOWS AGENTS*** Key Skills: Agent/endpoint testing , Cross platform testing (Windows, Mac + Linux OS … Automation testing in C# , Manual testing, Application testing , End point testing An exciting opportunity is on offer for a QA Automation Engineer to work for an exciting and well established SaaS Hi-tech business with a start-up feel , on a fully remote basis. The chosen QA Automation Engineer will be delivering a cutting edge, cloud native scalable platform within More ❯

QA Automation Engineer - C#/Linux/Mac/Windows deployment/Remote ***THIS IS A FULL REMOTE WORKING ROLE FROM THE UK ONLY*** ***AGENT/ENDPOINT TESTING EXPERIENCE NEEDED*** ***NEED AUTOMATION TEST SKILLS IN C# *** ***NEED EXPERIENCE OF WINDOWS IT ADMIN OR DEPLOYING WINDOWS AGENTS*** Key Skills: Agent/endpoint testing , Cross platform testing (Windows, Mac + Linux OS … Automation testing in C# , Manual testing, Application testing , End point testing An exciting opportunity is on offer for a QA Automation Engineer to work for an exciting and well established SaaS Hi-tech business with a start-up feel , on a fully remote basis. The chosen QA Automation Engineer will be delivering a cutting edge, cloud native scalable platform within More ❯

Key Responsibilities: CRM & Data Management Maintain, develop, and enhance the CRM system to improve functionality, lead generation, and marketing capabilities. Implement workflow automations, logic rules, integrations, and (where applicable) C# coding. Collaborate with our CRM provider to unlock new features and innovations. Ensure CRM compliance in partnership with the Business Operations Manager. Data & Reporting Prepare regular reports on financial performance … team. Maintain and update the companys SharePoint intranet with policies, templates, training materials, and news. Key Skills: Technically confident, with experience in CRM systems (knowledge of workflow automations and C# is essential). Analytical and comfortable working with data, turning numbers into meaningful insights. Creative and skilled at producing engaging marketing content. Organised, adaptable, and able to manage multiple projects More ❯

for someone who can drive projects, mentor junior and deal with senior business stakeholders. Technically they are looking for strong E2E test automation with a heavy focus on complex C# API automation testing. What's required Strong experience in C# backend testing Previous experience working in trading is strongly desirable Strong ability to communicate with non technical stakeholders What's More ❯

for someone who can drive projects, mentor junior and deal with senior business stakeholders. Technically they are looking for strong E2E test automation with a heavy focus on complex C# API automation testing. What's required Strong experience in C# backend testing Previous experience working in trading is strongly desirable Strong ability to communicate with non technical stakeholders What's More ❯