776 to 800 of 987 C# Jobs in London

Data Engineer 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# Dot net and SQL 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 documentation for all projects. You ideally have worked on banking systems particularly Core Banking. Responsible for the development and delivery of new systems to … Line Manager. ? M ust Have Skills S oftware analysis and design. SQL Server query language with SSIS. Data warehouse design concepts, (Inmon or Kimball) Experience of developing software with C# Dot Net and asp.net and SQL Serveris a must. Must have solid experience of working with SSIS and building data warehouses. The Client is a Bank based in the Central More ❯

C# Fullstack Developer Our investment bamkng client is looking for a highly skilled C# Fullstack Developer to join their London baseed team in a permananent capacity. Overview: We are seeking a highly skilled C# Fullstack Developer with experience in investment banking or large-scale enterprise environments. This role involves working closely with middle office and back office stakeholders , contributing to … and maintain fullstack applications using modern technologies. Contribute to DevOps processes and CI/CD pipelines. Work with large data models and multithreaded systems. Essential Skills: Strong proficiency in C# and backend development. Frontend experience with Angular and AG Grid . Solid understanding of SQL Server and database design. Familiarity with Jenkins or other DevOps tools. Ability to build strong More ❯

Role: C#/Angular Developer Location: London, United Kingdom (Hybrid) Type: 6 Month FTC About the Company Join a top-tier FinTech firm at the forefront of financial technology innovation. This is an opportunity to work in a small, agile development team building high-performance applications used across trading, treasury, and portfolio management functions. You’ll be part of a … collaborative environment that values initiative, technical excellence, and close interaction with business users. The Role We’re seeking a talented C# and Angular Developer to help design, build, and support a range of enterprise systems used by front office and operations teams. You’ll work on both greenfield and existing projects, contributing to scalable REST APIs, modern Angular SPAs, and … data integration initiatives. What You’ll Do Design and develop backend services using C# and RESTful APIs. Build and enhance modern single-page applications using Angular and TypeScript. Collaborate closely with traders, portfolio managers, and operations teams to deliver practical, business-focused solutions. Support and enhance data systems, with involvement in future data platform migrations (e.g. to Snowflake). Take More ❯

religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title : C# Developer Contract : Initial 6-Month Contract Location : London - 3 days a week in office Rate : £415 Are you a passionate C# Developer looking to make an impact in a dynamic … applications using the MS .NET platform. If you thrive on challenges and enjoy collaborating with various teams, we want to hear from you! What You'll Do: As a C# Developer, you will play a key role in the development and support of essential business applications. Your main responsibilities will include: Understanding Business Needs: Engage with stakeholders to gather and … C#.NET, interfacing with Oracle and SQL Server databases. Quality Assurance: Conduct unit testing and ensure quality at every stage of development. Support Existing Applications: Provide ongoing support for current C# and .NET applications, ensuring optimal functionality. Collaboration: Work closely with the IT department to maintain the environments where applications run. Additional Responsibilities: Define necessary database objects and liaise with SQL More ❯

Software Developer Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £50,000 - £60,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing from Back to Front Office trading systems. Key Responsibilities: Design, develop and maintain Front Office systems written … in C#, ,NET Collaborate closely with a variety of internal and external stakeholders around the globe from product managers to traders Developing with the existing systems technologies and integration with cloud based architecture (azure) Strong business knowledge with Post Trade systems Key Benefits: Competitive base salary up to £60,000 based on previous experience and domain knowledge Hybrid working structure More ❯

Software Developer Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £50,000 - £60,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing from Back to Front Office trading systems. Key Responsibilities: Design, develop and maintain Front Office systems written … in C#, ,NET Collaborate closely with a variety of internal and external stakeholders around the globe from product managers to traders Developing with the existing systems technologies and integration with cloud based architecture (azure) Strong business knowledge with Post Trade systems Key Benefits: Competitive base salary up to £60,000 based on previous experience and domain knowledge Hybrid working structure More ❯

religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title : C# Developer Contract : Initial 6-Month Contract Location : London - 3 days a week in office Rate : £415 Are you a passionate C# Developer looking to make an impact in a dynamic … applications using the MS .NET platform. If you thrive on challenges and enjoy collaborating with various teams, we want to hear from you! What You'll Do: As a C# Developer, you will play a key role in the development and support of essential business applications. Your main responsibilities will include: Understanding Business Needs: Engage with stakeholders to gather and … C#.NET, interfacing with Oracle and SQL Server databases. Quality Assurance: Conduct unit testing and ensure quality at every stage of development. Support Existing Applications: Provide ongoing support for current C# and .NET applications, ensuring optimal functionality. Collaboration: Work closely with the IT department to maintain the environments where applications run. Additional Responsibilities: Define necessary database objects and liaise with SQL More ❯

front office. You will also work on larger projects that support the wider business. The Quant and Data teams are both working in Python, with the core system in C#, so they are looking for developers who have a core learning and ability in these languages. Outstanding candidates currently working with a C-Style language (C#, C++, Java, Go etc … attitude. As you will be working closely with the business, previous experience within hedge funds would be advantageous but is not required. The priority is to find an exceptional C# programmer, so those without financial experience will still be considered (if they are able to acquire domain knowledge). That said, candidates with experience working within interest rate trading are … field of systematic would be highly regarded but not essential Experience with fixed income (interest rates) products would be an advantage (but not essential) Excellent, current programming ability in C# 2-5 years experience working in a relevant role Positive, can-do pragmatic attitude Due to demand, we are advertising this C#/.Net Developer role anonymously. If you would More ❯

Software Engineer C#, .NET Core, NUnit, Postgres, AWS, Azure, Kubernetes, Docker. City of London, United Kingdom Perm Role: £65,000 - £80,000 Harrington Starr has partnered with a Global Financial Technology company, and they are looking to hire a Mid - Senior C#, .Net Software Engineer, with experience working with highly scalable and performant systems. This is a great opportunity to … base salary up to £80,000 based on experience. Funded additional training and development and certifications. Excellent bonus structure. What skills, experience and qualifications required: Strong commercial experience with C#, .NET Core. Experience working with cloud technology (Azure/AWS). Strong commercial experience working with highly scalable and high-performance systems. Excellent communication skills. Full, unrestricted right to work … in the UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a Mid - Senior Software Engineer, with strong C#, .Net experience, having a direct impact from the get-go! For any additional questions, please contact me via LinkedIn or through email - ollie.bluck@harringtonstarr.com. If you feel this role is More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading and business … operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure to front-to … back office technology and teams Strong bonus and benefits package Key Requirements: Experience in financial services or trading environments Proficiency in C#, SQL Server, and front-end development (React preferred) Experience working with APIs and market data (e.g. Bloomberg, Fidessa) Strong communication, problem-solving, and collaboration skills Other Information: Agile working culture in a fast-paced environment No visa sponsorship More ❯

build strong and effective relationships Have experience building and maintaining complex distributed systems Take a proactive approach to spotting problems and areas for improvement Skills & Experience Strong Knowledge of C# and SQL Experience building on Azure, GCP or AWS At least 5 years of experience building distributed systems Excellent communication skills Can inspire and lead a team Experience overseeing multiple … concurrent projects Tech Stack C# .NET Kafka Real time distributed systems High throughput Git Elastic stack If you are not an expert in these specific technologies but are familiar with an equivalent then we’re happy to train you. More ❯

build strong and effective relationships Have experience building and maintaining complex distributed systems Take a proactive approach to spotting problems and areas for improvement Skills & Experience Strong Knowledge of C# and SQL Experience building on Azure, GCP or AWS At least 5 years of experience building distributed systems Excellent communication skills Can inspire and lead a team Experience overseeing multiple … concurrent projects Tech Stack C# .NET Kafka Real time distributed systems High throughput Git Elastic stack If you are not an expert in these specific technologies but are familiar with an equivalent then we’re happy to train you. More ❯

build strong and effective relationships Have experience building and maintaining complex distributed systems Take a proactive approach to spotting problems and areas for improvement Skills & Experience Strong Knowledge of C# and SQL Experience building on Azure, GCP or AWS At least 5 years of experience building distributed systems Excellent communication skills Can inspire and lead a team Experience overseeing multiple … concurrent projects Tech Stack C# .NET Kafka Real time distributed systems High throughput Git Elastic stack If you are not an expert in these specific technologies but are familiar with an equivalent then we’re happy to train you. More ❯

build strong and effective relationships Have experience building and maintaining complex distributed systems Take a proactive approach to spotting problems and areas for improvement Skills & Experience Strong Knowledge of C# and SQL Experience building on Azure, GCP or AWS At least 5 years of experience building distributed systems Excellent communication skills Can inspire and lead a team Experience overseeing multiple … concurrent projects Tech Stack C# .NET Kafka Real time distributed systems High throughput Git Elastic stack If you are not an expert in these specific technologies but are familiar with an equivalent then we’re happy to train you. More ❯

Senior Software Engineer (GoLang & C#) Location : London (Hybrid, 2 days on site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a Senior Software Engineer to join their in-house product team, working on a major initiative that’s redefining how complex data is handled across … full product lifecycle, from architecture to delivery, with freedom to influence technical direction and shape a high-impact solution used globally. The role Build backend services using Go and C#, contributing to a modular, service- and event-driven architecture Work with distributed messaging systems, RESTful APIs, and modern frontend frameworks (Vue, React, or Angular) Manage relational databases (SQL Server, SQLite … About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding of database design and optimisation Knowledge of distributed systems, service-oriented architecture, and event-driven design Familiar with version control (Git) and More ❯

Senior Software Engineer (GoLang & C#) Location : London (Hybrid, 2 days on site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a Senior Software Engineer to join their in-house product team, working on a major initiative that’s redefining how complex data is handled across … full product lifecycle, from architecture to delivery, with freedom to influence technical direction and shape a high-impact solution used globally. The role Build backend services using Go and C#, contributing to a modular, service- and event-driven architecture Work with distributed messaging systems, RESTful APIs, and modern frontend frameworks (Vue, React, or Angular) Manage relational databases (SQL Server, SQLite … About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding of database design and optimisation Knowledge of distributed systems, service-oriented architecture, and event-driven design Familiar with version control (Git) and More ❯

Senior Software Engineer (GoLang & C#) Location : London (Hybrid, 2 days on site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a Senior Software Engineer to join their in-house product team, working on a major initiative that’s redefining how complex data is handled across … full product lifecycle, from architecture to delivery, with freedom to influence technical direction and shape a high-impact solution used globally. The role Build backend services using Go and C#, contributing to a modular, service- and event-driven architecture Work with distributed messaging systems, RESTful APIs, and modern frontend frameworks (Vue, React, or Angular) Manage relational databases (SQL Server, SQLite … About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding of database design and optimisation Knowledge of distributed systems, service-oriented architecture, and event-driven design Familiar with version control (Git) and More ❯

Senior Software Engineer (GoLang & C#) Location : London (Hybrid, 2 days on site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a Senior Software Engineer to join their in-house product team, working on a major initiative that’s redefining how complex data is handled across … full product lifecycle, from architecture to delivery, with freedom to influence technical direction and shape a high-impact solution used globally. The role Build backend services using Go and C#, contributing to a modular, service- and event-driven architecture Work with distributed messaging systems, RESTful APIs, and modern frontend frameworks (Vue, React, or Angular) Manage relational databases (SQL Server, SQLite … About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding of database design and optimisation Knowledge of distributed systems, service-oriented architecture, and event-driven design Familiar with version control (Git) and More ❯

Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package I’m currently partnered with a leading trading organisation that’s looking for a Lead Developer to take ownership of technical direction, mentor a talented team, and deliver high-quality, scalable solutions. This is a fantastic opportunity for someone who thrives on both hands-on development and … in architecture, code quality, and modern development approaches Delivering robust, test-driven software solutions using the latest tools and methodologies What We’re Looking For Strong background in .NET (C#), SQL Server, SSIS/SSAS, T-SQL Experience of data engineering, ETL/ELT pipelines, Azure services (Data Factory, Synapse, Data Lake) Exposure with React/Angular/TypeScript Knowledge … people and projects. If you’d like to hear more, drop me a message or apply today and I’ll be in touch to discuss the details. Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package More ❯

Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package I’m currently partnered with a leading trading organisation that’s looking for a Lead Developer to take ownership of technical direction, mentor a talented team, and deliver high-quality, scalable solutions. This is a fantastic opportunity for someone who thrives on both hands-on development and … in architecture, code quality, and modern development approaches Delivering robust, test-driven software solutions using the latest tools and methodologies What We’re Looking For Strong background in .NET (C#), SQL Server, SSIS/SSAS, T-SQL Experience of data engineering, ETL/ELT pipelines, Azure services (Data Factory, Synapse, Data Lake) Exposure with React/Angular/TypeScript Knowledge … people and projects. If you’d like to hear more, drop me a message or apply today and I’ll be in touch to discuss the details. Lead Developer - C#, SQL, SSIS, SSAS, ETL - £110,000 + Market Leading package More ❯

Front end tools can be either web dashboards or Excel tools backed by robust libraries or web services. Design and build data solutions and ETLs (using SQL, no-SQL, C#, and Python) for market data, quant analytics and alpha generation. Requirements 3-5 years of relevant experience Bachelor's degree, preferably in a quantitative degree Excellent quantitative reasoning and software … with the highest degree of ethics and integrity Nice to have: Knowledge of financial instruments & data: FX, Futures, Interest Rates derivatives, Options Proficiency in another programming language such as C#, Java or C++ Web development skills Experience with AWS More ❯

FinTech projects. This is a backend-focused role, but familiarity with front-end tools like Angular is a nice-to-have. Key Responsibilities: Develop and maintain backend applications using C#, .NET, and Azure. Leverage Microsoft SQL Server services (database, integration services, reporting services) and write complex T-SQL stored procedures. Implement design patterns such as Factory, Adapter, and Chain of … database performance with database tuning (bonus). Participate in a hybrid working setup, spending 2 days per week in the office Essential Skills: Proven experience in backend development using C# and .NET frameworks. Strong expertise in Azure cloud technologies. Hands-on experience with Microsoft SQL Server services (database, integration services, reporting services). Advanced knowledge of T-SQL, including stored More ❯