76 to 100 of 115 C# Developer Jobs in London

Risk & P&L IT Senior Developer Location: London (Hybrid, 3 days onsite) Contract Length: 6 Months Initial Contract Day Rate: (Inside IR35) Overview We are seeking an experienced Risk & P&L IT Senior Developer to join a high-performing Global Markets technology team supporting critical Risk … team. Required Skills & Experience Essential Significant software engineering experience with a proven track record of delivering complex enterprise systems. Strong knowledge of Python or C#/.NET development within enterprise environments. Experience developing applications in multi-threaded and distributed environments. Strong SQL development skills, including complex query optimisation ...

United States Digital Space LLC is seeking a C#/.NET Developer in Greater London to design tailored software applications for the Commodities Markets. The role combines hands-on development and critical production support. Candidates should have strong abilities in C#/.NET and experience ...

Talan is looking for a skilled C# Developer with REACT experience to join their delivery teams focusing on Front Office platforms. You will design and enhance regulatory and sales enablement solutions in fast-paced trading environments. This role requires strong collaboration with stakeholders and contributions across ...

Software Developer with C# Dot Net asp.net with SQL Server SSIS SSRS Our Client is a bank based in Central London who are looking to recruit at least 7 years plus experience as a Data Engineer with the ability to work with C# … Server with SSIS. You must have solid expertise of at least 7 years’ experience of working with and developing software with C# Dot Net and MS SQL Server and SSIS, SSRS and SSAS – SSIS is very important for this position. Must be an excellent problem solver and adept writing ...

Tech: C#, concurrent .NET code,TCP/IP and websockets, SQLChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 85k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Backend Developer FintechQuant is urgently looking for a junior and senior C# Software Engineer to join our high profile client. Current challenges greenfield trading platform development and Integration to other platformsOur client is a well known commodity trading platform. The environment is that of Facebook or Google, relaxed open ...

C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# … pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills Minimum 3 to 5 years experience of Microsoft web technologies(C#, ASP.NETCore MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce clean ...

want to work in a culture where your contributions matter and your growth is supported.What you’ll work on:Developing full-stack features using C#, .NET, HTML, CSS, JavaScript, and SQL .Writing and optimizing hand-crafted SQL queries to ensure high performance.Designing and implementing event-driven workflows using Event … deployments.Automating infrastructure with Pulumi and Azure DevOps .Participating in architecture discussions, code reviews, and maintaining engineering best practices.What you may have:Strong experience with C#/.NET , including async/await, memory management, and resource handling.Deep knowledge of SQL Server , including query optimization, indexing, execution plans, and performance tuning.Solid ...

C# .NET DeveloperBrusselsQuant Capital is urgently looking for C# .NET Developer to join our high profile client. Our client is a well known insuretech business. They are a small subsidiary of a much larger financial exchange firm. The first mission starts in with … tasks, proactively gathering requirements if needed. Improving company's build and deployment pipelines (CI/CD).Creating documentation of the developed components and processes. C# Developers must have: At least 5 years of proven track of record of software design and development. Advanced knowledge of C# and .NET ...

Tech: C# HTML5, Javascript, SQL, JQuery, GET Angular Challenge: Greenfield Investment platform, API development, industry specific challenges Firm: Fintech50 residential property peer to peer loans, Borough, 6 man flat Dev Team Pay: 45k, Bonus- 750 training budget, Pension, Life/Health, Flex/Home WorkingC# Web Developer FintechQuant is urgently looking for a C# WebDeveloper to join our high profile client. Our client is a new disruptive peer to peer loans business in the property space. The environment is that of Facebook or Google, relaxed open with time to think and make the right ...

Senior Backend Developer with Umbraco C# .net Working as part of the Digital team, you'll be responsible for the ongoing development and improvements to an eCommerce website as well as other internal applications for this award-winning Travel Company. You will be responsible for: Leading … automate processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET, C#, HTML, JavaScript, jQuery, React Framework, MS SQL Server, Mongo DB, Elasticsearch Understanding of SOLID development principles Worked previously on projects using the Umbraco CMS Continuous ...

Senior C# IAM Developer - Auth0, Identity & Access Control, AWS OUTSIDE IR35 Contract: 8 months Rate: £700 - £750 OUTSIDE IR35 Location: 100% remote The Role: Working for a global, market leading B2B SaaS business, youll lead the design and implementation of secure, identity-driven backend services … modern C#/.NET environment. Your work will centre on authentication, authorization, and secure event-driven architectures. Youll own our Auth0 integration end-to-end , ensuring our platform meets strict security, compliance, and reliability standards. This is a role for someone who thinks deeply about threat models, defence ...

even better. The work is a mixture of green-field and legacy projects (much like any other mature organisation) mostly using C#, SQL Server, Next.js, React & TypeScript, with a combination of monolithic and microservices architectures. Key Responsibilities We are looking for technically strong and organised senior developers to join … Experience We would like to meet someone who is Minimum 6 years of commercial experience of React/TypeScript Minimum 6 years of solid C# in a commercial environment Produces initial results rapidly and iterate based upon feedback. Knowledge of microservice design principles - preferably with commercial experience. Experience with ...

hands-on role with strong influence over engineering standards, quality, and technical direction. Key Responsibilities Design, develop, test, and maintain scalable services using C#/.NET (ASP.NET Core) and RESTful APIs. Build responsive, accessible user interfaces using React, TypeScript, HTML, and CSS.Implement secure authentication/authorisation (e.g., OAuth2/… deployment practices. Mentor engineers and promote best practice in engineering craft and delivery. Required Skills & Experience Extensive commercial experience in full stack development with C#/.NET and React. Strong knowledge of .NET Core, dependency injection, asynchronous programming, and API design. Strong React experience including state management and modern ...

initiatives Report to and collaborate with the CTO Требования Experienced Software Developer/Engineer with strong knowledge of modern best practices Strong C# backend development skills Good knowledge of AWS Experience working on highly scalable systems Strong knowledge of Computer Science fundamentals, including OOP, Data Structures ...

.Net Developer to join its Trade Operations IT Delivery Team. You will design, develop and support bespoke multi-asset class applications using C#, .NET Core, Web API, and Angular front end while collaborating with business analysts and IT colleagues. You will deploy changes to production, participate ...

Senior Back-End Developer - .NET/C# Are you looking for a new challenge? Looking for autonomy and a seat at the table? London | Hybrid | Fintech The Role A fast-growing fintech is building a new in-house engineering team and is looking for a Senior Back … Developer to become a key technical hire. You'll take ownership of a modern platform built with C#/.NET microservices, PostgreSQL, Redis and Google Cloud, helping shape architecture, engineering standards and future development. Key Responsibilities Build and maintain C#/.NET microservices Design APIs, integrations ...

Senior C# IAM Developer - Auth0, Identity & Access Control, AWS OUTSIDE IR35 Contract: 8 months Rate: £700 - £750 OUTSIDE IR35 Location: 100% remote The Role: Working for a global, market leading B2B SaaS business, youll lead the design and implementation of secure, identity-driven backend services … modern C#/click apply for full job details ...

Talan is seeking a skilled C# .NET Developer with REACT experience to join our delivery teams working on Front Office platforms within Global Markets environments . In this role, you will design, build, and enhance regulatory, alerting, and sales enablement solutions , supporting front-office users in fast … third-line support and assist with troubleshooting production incidents Contribute to code reviews and continuous improvement initiatives Skills & Experience (Required) Strong development experience in C#/.NET & REACT (server-side and/or full-stack) Experience building web-based applications and RESTful APIs Solid experience with relational databases ...

front office risk and valuation platform used in a fast paced, real time environment. The Role We are seeking a hands on Senior Developer to join a high impact technology team responsible for risk, valuation, and decision support systems. You will work across the full stack, collaborating closely ...

Greenfield projects and their business impact Develop backend and API solutions Contribute to front-end development with JavaScript and React.js Требования Expertise with C# .Net and ASP.Net development Strong knowledge of SQL or Oracle databases Comfortable working with JavaScript and React Thorough knowledge of Computer Science fundamentals, including ...

Take ownership of Greenfield projects and deliver business impact Develop backend services and APIs Work on frontend components using JavaScript and React.js Требования: Strong C# .Net and ASP.Net development experience Strong knowledge of SQL or Oracle databases Comfortable with JavaScript and React Thorough knowledge of Computer Science fundamentals, including ...

internally developed analytics libraries to handle curve and vol surface construction and pricing of trades. We are seeking a hands‐on Senior Developer to build and operate a high‐scalable, AWS cloud-based risk platform leveraging a Snowflake database containing trade data, reference data and market data needed … seamless end to end process for delivering risk. Participate in an on-call support rotaEssential Experience/Skills7+ years of development experience, Python & ideally C# .NET.Experience building and supporting pricing and risk management systems for one or more of the following asset classes (in order of importance) equities, fixed ...

based Development Team to design, develop, test and deploy Windows applications and web services as part of software integration platforms. Use experience acquired in C# .Net development to enhance our knowledgebase and improve best practices within the Development Team, as well as mentor junior developers. Contribute to continuous improvement … ASP.NET Developers MUST have: At least a bachelor's degree in computer science or related discipline. Minimum of 5 years development experience. Proficient in C#, ASP.NET, Web API, OO, SQL Server, JavaScript, Entity Framework, Database design and admin, UI form design, Agile. A Proactive self-starter who takes pride ...

Gujral is seeking a C# .NET Software Developer with FX and Fixed Income experience to join a niche London-based brokerage. You will work closely with traders on financial trading systems and modernise the in-house middle office. The role requires 3–5 years in Microsoft … technologies (C#, ASP.NET Core MVC) and SQL Server, with responsibilities including re-architecting platforms, pricing toolsets and API integrations. The contract is 12 months, day rate £450–£600. #J-18808-Ljbffr ...

Tech: C#, .Net, F#, WPF, SignalR/websockets, Protocol Buffers, Octopus, Autofac, SQL ServerChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 75k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# … Desktop Developer FintechQuant is urgently looking for a C# Software Engineer to join our high profile client. Current challenges greenfield trading platform development and Integration to other platformsOur client is a well known commodity trading platform. The environment is that of Facebook or Google, relaxed open with ...