23 of 23 Senior C# Developer Jobs in the South East

Senior C# Developer - Endur Transition Commodities Trading House £120k + Bonus + Benefits 2-3 Days Hybrid/Week in London A hands-on Senior C# Developer is required for a global trading company operating across energy, chemicals, metals, machinery, infrastructure, food, and financial services. With a strong footprint in … oil, natural gas, LNG, and renewables . They are looking to bring someone on who is keen on learning and picking up on Endur for their ETRM systems. This C# Developer role will focus on building, enhancing, and optimising the company's Energy Trading and Risk Management (ETRM) platform. You'll be designing and implementing new solutions … a developer who can deliver immediate impact - coding, configuring, and optimising Endur to ensure scalability and performance when upgrading them from version 18 to 25. As a C# Developer focusing on Endur, you'll work closely with business users, analysts, and other technologists to deliver solutions across front, middle, and back office , particularly around pricing More ❯

Senior C# Developer – Endur Transition | Commodities Trading House | £120k + Bonus + Benefits | 2-3 Days Hybrid/Week in London A hands-on Senior C# Developer is required for a global trading company operating across energy, chemicals, metals, machinery, infrastructure, food, and financial services. With a strong footprint in … oil, natural gas, LNG, and renewables . They are looking to bring someone on who is keen on learning and picking up on Endur for their ETRM systems. This C# Developer role will focus on building, enhancing, and optimising the company’s Energy Trading and Risk Management (ETRM) platform. You’ll be designing and implementing new solutions … a developer who can deliver immediate impact — coding, configuring, and optimising Endur to ensure scalability and performance when upgrading them from version 18 to 25. As a C# Developer focusing on Endur, you’ll work closely with business users, analysts, and other technologists to deliver solutions across front, middle, and back office , particularly around pricing More ❯

Senior C# Developer – Endur Transition | Commodities Trading House | £120k + Bonus + Benefits | 2-3 Days Hybrid/Week in London A hands-on Senior C# Developer is required for a global trading company operating across energy, chemicals, metals, machinery, infrastructure, food, and financial services. With a strong footprint in … oil, natural gas, LNG, and renewables . They are looking to bring someone on who is keen on learning and picking up on Endur for their ETRM systems. This C# Developer role will focus on building, enhancing, and optimising the company’s Energy Trading and Risk Management (ETRM) platform. You’ll be designing and implementing new solutions … a developer who can deliver immediate impact — coding, configuring, and optimising Endur to ensure scalability and performance when upgrading them from version 18 to 25. As a C# Developer focusing on Endur, you’ll work closely with business users, analysts, and other technologists to deliver solutions across front, middle, and back office , particularly around pricing More ❯

Senior C# Developer – Endur Transition | Commodities Trading House | £120k + Bonus + Benefits | 2-3 Days Hybrid/Week in London A hands-on Senior C# Developer is required for a global trading company operating across energy, chemicals, metals, machinery, infrastructure, food, and financial services. With a strong footprint in … oil, natural gas, LNG, and renewables . They are looking to bring someone on who is keen on learning and picking up on Endur for their ETRM systems. This C# Developer role will focus on building, enhancing, and optimising the company’s Energy Trading and Risk Management (ETRM) platform. You’ll be designing and implementing new solutions … a developer who can deliver immediate impact — coding, configuring, and optimising Endur to ensure scalability and performance when upgrading them from version 18 to 25. As a C# Developer focusing on Endur, you’ll work closely with business users, analysts, and other technologists to deliver solutions across front, middle, and back office , particularly around pricing More ❯

Senior C# and React Full stack Developer | Front Office Trading House | £140,000 + Strong bonus | Hybrid working, LDN Senior C# and React, full stack Developer is needed for a London City based Hedge Fund who operate across the energy, commodities, equities and other financial markets. As well as providing … a technology-powered by data platform, market access and infrastructure services to clients, are looking to hire a Senior, Front Office, React front end and C# back end Engineer to work exceptionally closely with the trading desk, helping to build out a Greenfield Trading system. Involvement from architectural design, team leadership, Development and deployment. Uniquely, not only … software as SAAS. Therefore you will get the benefit of exposure to the front office, working in a FinTech type delivery model, using the latest versions of JavaScript, React.JS & C# As they provide best in class trading applications to both internal traders as well as external customers. This Senior C# and React Full stack Developer More ❯

Senior C# and React Full stack Developer | Front Office Trading House | £140,000 + Strong bonus | Hybrid working, LDN Senior C# and React, full stack Developer is needed for a London City based Hedge Fund who operate across the energy, commodities, equities and other financial markets. As well as providing … a technology-powered by data platform, market access and infrastructure services to clients, are looking to hire a Senior, Front Office, React front end and C# back end Engineer to work exceptionally closely with the trading desk, helping to build out a Greenfield Trading system. Involvement from architectural design, team leadership, Development and deployment. Uniquely, not only … software as SAAS. Therefore you will get the benefit of exposure to the front office, working in a FinTech type delivery model, using the latest versions of JavaScript, React.JS & C# As they provide best in class trading applications to both internal traders as well as external customers. This Senior C# and React Full stack Developer More ❯

Senior Full Stack C# Developer Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary up to £65,000, plus excellent company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have … a resident in the UK for a minimum of 5 years and have the right to work in the UK. Here at Triad Group, we're currently expanding our C#/.NET team and looking to bring on four experienced developers to contribute to an exciting Central Government project. This initiative is not only technically engaging but also offers … Powering systems that help the government monitor and reduce greenhouse gas emissions from commercial transport Role Summary Triad Group Plc is seeking a skilled and experienced Senior C# Developer to join our dynamic team. As a Senior Developer, you will be responsible for designing, developing, and maintaining software applications using .Net More ❯

Senior Full Stack C# Developer Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary up to £65,000, plus excellent company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have … a resident in the UK for a minimum of 5 years and have the right to work in the UK. Here at Triad Group, we're currently expanding our C#/.NET team and looking to bring on four experienced developers to contribute to an exciting Central Government project. This initiative is not only technically engaging but also offers … Powering systems that help the government monitor and reduce greenhouse gas emissions from commercial transport Role Summary Triad Group Plc is seeking a skilled and experienced Senior C# Developer to join our dynamic team. As a Senior Developer, you will be responsible for designing, developing, and maintaining software applications using .Net More ❯

Senior Full Stack Developer | C# & React | Greenfield Trading Platform | London, Hybrid | Up to £120k + Bonus, Benefits ❗ Note: This role does not provide Visa Sponsorship ❗ 💹 Our client is looking for a Senior Full Stack Developer with strong expertise in C# to join them in shaping the future of financial technology … days per week in London (West End) Key Responsibilities Design, develop, and maintain scalable applications within the trading ecosystem. Work across the full stack , with a primary focus on C# back-end development . Ensure performance, maintainability, and testability of all solutions. Work closely with business users to understand requirements and deliver high-impact solutions. Stay up to date … the technical roadmap. Collaborate with the team , mentor junior developers, and uphold development best practices. Experience Required 7+ years of experience in software development with a strong focus on C# and .NET . Proven experience in designing and building scalable, event-driven architectures . React experience is a plus , particularly for building modern user interfaces. Proficiency in SQL , with More ❯

Senior Full Stack Developer | C# & React | Greenfield Trading Platform | London, Hybrid | Up to £120k + Bonus, Benefits ❗ Note: This role does not provide Visa Sponsorship ❗ 💹 Our client is looking for a Senior Full Stack Developer with strong expertise in C# to join them in shaping the future of financial technology … days per week in London (West End) Key Responsibilities Design, develop, and maintain scalable applications within the trading ecosystem. Work across the full stack , with a primary focus on C# back-end development . Ensure performance, maintainability, and testability of all solutions. Work closely with business users to understand requirements and deliver high-impact solutions. Stay up to date … the technical roadmap. Collaborate with the team , mentor junior developers, and uphold development best practices. Experience Required 7+ years of experience in software development with a strong focus on C# and .NET . Proven experience in designing and building scalable, event-driven architectures . React experience is a plus , particularly for building modern user interfaces. Proficiency in SQL , with More ❯

Senior C# & React Full Stack Developer – Front Office Trading (Energy Team) £140,000 + Strong Bonus | Hybrid (London) A London-based Hedge Fund is seeking a Senior Full Stack Developer (C#, React) to join their Energy Trading Team , working closely with front office traders on a Greenfield trading system . … model used by external clients. This means exposure not only to front-office trading but also to fintech-style product delivery , using the latest tech stack (React.js, TypeScript, modern C#, cloud-native tooling). Key Responsibilities Partner with energy traders to design, code, and test modern trading applications. Drive architecture and design decisions , ensuring scalable, testable, and maintainable systems. … to CI/CD pipelines, DevOps practices, and agile delivery. Required Experience 6+ years building event-driven UIs with React/TypeScript. 6+ years developing back-end services in C# . Strong database knowledge (SQL Server, MongoDB, Postgres). Proven exposure to front-office environments (energy or commodities a strong plus). Methodical approach to software design and architecture. More ❯

Senior C# & React Full Stack Developer – Front Office Trading (Energy Team) £140,000 + Strong Bonus | Hybrid (London) A London-based Hedge Fund is seeking a Senior Full Stack Developer (C#, React) to join their Energy Trading Team , working closely with front office traders on a Greenfield trading system . … model used by external clients. This means exposure not only to front-office trading but also to fintech-style product delivery , using the latest tech stack (React.js, TypeScript, modern C#, cloud-native tooling). Key Responsibilities Partner with energy traders to design, code, and test modern trading applications. Drive architecture and design decisions , ensuring scalable, testable, and maintainable systems. … to CI/CD pipelines, DevOps practices, and agile delivery. Required Experience 6+ years building event-driven UIs with React/TypeScript. 6+ years developing back-end services in C# . Strong database knowledge (SQL Server, MongoDB, Postgres). Proven exposure to front-office environments (energy or commodities a strong plus). Methodical approach to software design and architecture. More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Senior Software Engineering role in a growing SaaS product company ? Recent investment means we are scaling & growing our Software Engineering & product teams - we are keen to add a Senior Engineer into this, with accomplished skills in the .Net platform (C# … if you d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company we d like to speak with you! Job title: Senior Software Developer. Location: Banbury, Oxfordshire. Very commutable from Milton Keynes though & numerous staff come from this area. Warwick, Bicester, Northampton, Rugby, Coventry, Leamington Spa, Brackley etc. All good commutes … Scrum Master, excellent technical product team & obviously full stack software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) & modern JS/TS frameworks, at a senior level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Senior Software Engineering role in a growing SaaS product company Recent investment means we are scaling & growing our Software Engineering & product teams - we are keen to add a Senior Engineer into this, with accomplished skills in the .Net platform (C# … if you’d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we’d like to speak with you! Job title: Senior Software Developer. Location: Banbury, Oxfordshire. Very commutable from Milton Keynes though & numerous staff come from this area. Warwick, Bicester, Northampton, Rugby, Coventry, Leamington Spa, Brackley etc. All good commutes … Scrum Master, excellent technical product team & obviously full stack software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) & modern JS/TS frameworks, at a senior level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Senior Software Engineering role in a growing SaaS product company ? Recent investment means we are scaling & growing our Software Engineering & product teams - we are keen to add a Senior Engineer into this, with accomplished skills in the .Net platform (C# … if you d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company we d like to speak with you! Job title: Senior Software Developer. Location: Banbury, Oxfordshire. Very commutable from Warwick, Bicester, Milton Keynes, Northampton, Rugby, Coventry, Leamington Spa, etc. Hybrid working: 2 days per week in the office. Flexible on … Scrum Master, excellent technical product team & obviously full stack software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) & modern JS/TS frameworks, at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Senior Software Engineering role in a growing SaaS product company ? Recent investment means we are scaling & growing our Software Engineering & product teams - we are keen to add a Senior Engineer into this, with accomplished skills in the .Net platform (C# … if you'd like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we'd like to speak with you! Job title: Senior Software Developer. Location: Banbury, Oxfordshire. Very commutable from Warwick, Bicester, Milton Keynes, Northampton, Rugby, Coventry, Leamington Spa, etc. Hybrid working: 2 days per week in the office. Flexible on … Scrum Master, excellent technical product team & obviously full stack software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) & modern JS/TS frameworks, at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting … and visualisation for Power, Gas and Weather. Key Requirements - 15 year+ experience - Strong .Net/C# - Strong SQL Server - Strong Azure Cloud experience Ideally, you will have worked with modelling of commodities, ideally energy (power, gas, environmental products). This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting … and visualisation for Power, Gas and Weather. Key Requirements - 15 year+ experience - Strong .Net/C# - Strong SQL Server - Strong Azure Cloud experience Ideally, you will have worked with modelling of commodities, ideally energy (power, gas, environmental products). This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting … and visualisation for Power, Gas and Weather. Key Requirements - 15 year+ experience - Strong .Net/C# - Strong SQL Server - Strong Azure Cloud experience Ideally, you will have worked with modelling of commodities, ideally energy (power, gas, environmental products). This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting … and visualisation for Power, Gas and Weather. Key Requirements - 15 year+ experience - Strong .Net/C# - Strong SQL Server - Strong Azure Cloud experience Ideally, you will have worked with modelling of commodities, ideally energy (power, gas, environmental products). This needs combining with a positive attitude and an ability to work within a large, globally dispersed project team in More ❯

As a C# skilled Quant Developer , you'll work closely with portfolio managers, researchers, and data scientists to build and maintain the systems that drive our alpha-generating strategies. You’ll contribute to every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high … performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex datasets from a variety of sources Collaborate with quants and PMs to implement and backtest trading models Ensure robustness and scalability in both real-time and batch environments What We’re Looking For: Strong … programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time-series databases is beneficial Self-starter attitude with a sharp eye for detail and a high level of ownership Why Join? Competitive More ❯

As a C# skilled Quant Developer , you'll work closely with portfolio managers, researchers, and data scientists to build and maintain the systems that drive our alpha-generating strategies. You’ll contribute to every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high … performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex datasets from a variety of sources Collaborate with quants and PMs to implement and backtest trading models Ensure robustness and scalability in both real-time and batch environments What We’re Looking For: Strong … programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time-series databases is beneficial Self-starter attitude with a sharp eye for detail and a high level of ownership Why Join? Competitive More ❯

As a C# skilled Quant Developer , you'll work closely with portfolio managers, researchers, and data scientists to build and maintain the systems that drive our alpha-generating strategies. You’ll contribute to every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high … performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex datasets from a variety of sources Collaborate with quants and PMs to implement and backtest trading models Ensure robustness and scalability in both real-time and batch environments What We’re Looking For: Strong … programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time-series databases is beneficial Self-starter attitude with a sharp eye for detail and a high level of ownership Why Join? Competitive More ❯