101 to 125 of 212 .NET Core Jobs in London

Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech start-up based in Newcastle … Senior Software Engineer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career. Location: You … by A*s and As at A-level You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with modern C# .Net Core, Python skills would also be of benefit You have a strong knowledge of modern software engineering best practices and have experience across the full software development More ❯

Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech start-up based in Newcastle … Senior Software Engineer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career. Location: You … by A*s and As at A-level You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with modern C# .Net Core, Python skills would also be of benefit You have a strong knowledge of modern software engineering best practices and have experience across the full software development More ❯

engineering practices. Understanding and solving challenging problems through simplistic solutions and services. Architect and build using technology that is best suited to solving the problem. Currently, we build with .NET Core, C#, Blazor, JavaScript, Angular, Azure, RabbitMQ, MS SQL and we adopt new technologies when they'll help us better achieve our goals. Collaborate with both internal … integration solutions, but if you are technically talented, passionate and can communicate then we're interested to hear from you regardless of experience years. Demonstrable software development experience in .NET Core, C# plus one of Blazor, JavaScript, Angular, Azure, RabbitMQ Strong SQL skills Competent using whatever technology is best suited to solving a problem. Enthusiasm for continuous More ❯

engineering practices. Understanding and solving challenging problems through simplistic solutions and services. Architect and build using technology that is best suited to solving the problem. Currently, we build with .NET Core, C#, Blazor, JavaScript, Angular, Azure, RabbitMQ, MS SQL and we adopt new technologies when they'll help us better achieve our goals. Collaborate with both internal … integration solutions, but if you are technically talented, passionate and can communicate then we're interested to hear from you regardless of experience years. Demonstrable software development experience in .NET Core, C# plus one of Blazor, JavaScript, Angular, Azure, RabbitMQ Strong SQL skills Competent using whatever technology is best suited to solving a problem. Enthusiasm for continuous More ❯

Junior .NET Software Engineer | London | £35,000–£50,000 + Bonus + Hybrid Location: Central London (Hybrid: 3 days in office) Salary: £35,000–£50,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, REST APIs, SQL, CI/CD, Microservices The Opportunity We are partnering with a fast-growing SaaS company in … Central London that is expanding its engineering team and looking for a Junior .NET Software Engineer who is eager to learn, grow, and work with modern technologies. This is a fantastic opportunity for someone with a solid foundation in C# and .NET to develop their skills in cloud computing (AWS), microservices, and modern software engineering practices. You’ll … experienced team that values mentorship, collaboration, and technical excellence — offering you the chance to work on meaningful projects while being supported by senior engineers. The Role As a Junior .NET Software Engineer, you’ll contribute to the development of scalable backend systems and web applications while learning from experienced mentors. Your responsibilities will include: Developing backend functionality using .NET More ❯

Junior .NET Software Engineer | London | £35,000–£50,000 + Bonus + Hybrid Location: Central London (Hybrid: 3 days in office) Salary: £35,000–£50,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, REST APIs, SQL, CI/CD, Microservices The Opportunity We are partnering with a fast-growing SaaS company in … Central London that is expanding its engineering team and looking for a Junior .NET Software Engineer who is eager to learn, grow, and work with modern technologies. This is a fantastic opportunity for someone with a solid foundation in C# and .NET to develop their skills in cloud computing (AWS), microservices, and modern software engineering practices. You’ll … experienced team that values mentorship, collaboration, and technical excellence — offering you the chance to work on meaningful projects while being supported by senior engineers. The Role As a Junior .NET Software Engineer, you’ll contribute to the development of scalable backend systems and web applications while learning from experienced mentors. Your responsibilities will include: Developing backend functionality using .NET More ❯

Junior .NET Software Engineer | London | £35,000–£50,000 + Bonus + Hybrid Location: Central London (Hybrid: 3 days in office) Salary: £35,000–£50,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, REST APIs, SQL, CI/CD, Microservices The Opportunity We are partnering with a fast-growing SaaS company in … Central London that is expanding its engineering team and looking for a Junior .NET Software Engineer who is eager to learn, grow, and work with modern technologies. This is a fantastic opportunity for someone with a solid foundation in C# and .NET to develop their skills in cloud computing (AWS), microservices, and modern software engineering practices. You’ll … experienced team that values mentorship, collaboration, and technical excellence — offering you the chance to work on meaningful projects while being supported by senior engineers. The Role As a Junior .NET Software Engineer, you’ll contribute to the development of scalable backend systems and web applications while learning from experienced mentors. Your responsibilities will include: Developing backend functionality using .NET More ❯

Junior .NET Software Engineer | London | £35,000–£50,000 + Bonus + Hybrid Location: Central London (Hybrid: 3 days in office) Salary: £35,000–£50,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, REST APIs, SQL, CI/CD, Microservices The Opportunity We are partnering with a fast-growing SaaS company in … Central London that is expanding its engineering team and looking for a Junior .NET Software Engineer who is eager to learn, grow, and work with modern technologies. This is a fantastic opportunity for someone with a solid foundation in C# and .NET to develop their skills in cloud computing (AWS), microservices, and modern software engineering practices. You’ll … experienced team that values mentorship, collaboration, and technical excellence — offering you the chance to work on meaningful projects while being supported by senior engineers. The Role As a Junior .NET Software Engineer, you’ll contribute to the development of scalable backend systems and web applications while learning from experienced mentors. Your responsibilities will include: Developing backend functionality using .NET More ❯

to design and maintain the backend services powering our customization features. As a Senior Backend Engineer, your expertise in building scalable systems using modern technologies (such as C# and .NET Core) will be instrumental in enabling these features horizontally across our products - Translate, Voice and APs. Your contributions will help shape the technical architecture underpinning customization workflows … ensuring enterprise users can efficiently deliver high-quality content. By continuously improving these core services, you'll play a key part in establishing DeepL as an essential component of team-based content creation worldwide. Your Responsibilities Design, implement and maintain features in our microservices in a hybrid cloud environment. Contribute to the implementation of end-to-end solutions … call rotation as needed. Qualities we look for Proficiency in a modern programming language with solid experience in backend development. Exposure to or familiarity with our tech stack (C#, .NET Core, gRPC) or similar technologies would be beneficial but is not a strict requirement. What's more important is your willingness and ability to learn new technologies 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 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 More ❯

Microservices NET Software Engineer who is eager to learn, grow, and work with modern technologies. This is a fantastic opportunity for someone with a solid foundation in C# and .NET to develop their skills in cloud computing (AWS), microservices, and modern software engineering practices. Youll be joining an experienced team that values mentorship, collaboration, and technical excellence offering you … in software development. You enjoy solving problems, writing code, and continuously improving your technical skills. 12 years of experience in software development (commercial or internship) Knowledge of C#/.NET Core/.NET 6+ Familiarity with REST APIs and SQL databases Understanding of core programming concepts (OOP, data structures, debugging) Eagerness to learn cloud More ❯

Mid-Level .NET Software Engineer | London | £60,000–£80,000 + Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing … SaaS brand based in Central London who are looking for a talented Mid-Level .NET Software Engineer to join their expanding development team. This is an outstanding opportunity for an engineer with solid .NET experience and a passion for cloud technologies (especially AWS) to take the next step in a modern, forward-thinking environment. You’ll be joining … projects, cloud-first architecture, and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps More ❯

Mid-Level .NET Software Engineer | London | £60,000–£80,000 + Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing … SaaS brand based in Central London who are looking for a talented Mid-Level .NET Software Engineer to join their expanding development team. This is an outstanding opportunity for an engineer with solid .NET experience and a passion for cloud technologies (especially AWS) to take the next step in a modern, forward-thinking environment. You’ll be joining … projects, cloud-first architecture, and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps More ❯

Mid-Level .NET Software Engineer | London | £60,000–£80,000 + Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing … SaaS brand based in Central London who are looking for a talented Mid-Level .NET Software Engineer to join their expanding development team. This is an outstanding opportunity for an engineer with solid .NET experience and a passion for cloud technologies (especially AWS) to take the next step in a modern, forward-thinking environment. You’ll be joining … projects, cloud-first architecture, and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps More ❯

Mid-Level .NET Software Engineer | London | £60,000–£80,000 + Bonus + Hybrid Location: Central London (Hybrid: 2 days in office) Salary: £65,000–£80,000 + performance bonus + excellent benefits Tech: .NET 6/7, C#, AWS, Microservices, REST APIs, SQL, CI/CD 🚀 The Opportunity We’re partnering with a highly successful fast-growing … SaaS brand based in Central London who are looking for a talented Mid-Level .NET Software Engineer to join their expanding development team. This is an outstanding opportunity for an engineer with solid .NET experience and a passion for cloud technologies (especially AWS) to take the next step in a modern, forward-thinking environment. You’ll be joining … projects, cloud-first architecture, and genuine opportunities for growth. 🧠 The Role As part of a cross-functional engineering team, you’ll: Develop and maintain high-quality backend systems using .NET 6/7 (C#) Design and build AWS-based microservices and scalable APIs Collaborate closely with product, DevOps, and front-end teams Contribute to architectural decisions and technology roadmaps More ❯

Job Title/Corporate Title: C# .NET Full Stack Developer Contract: £750 - £950/day (Inside IR35) Location: London (Hybrid) You’ll be joining a major financial services organisation to design, build, and support Full Stack C# .NET applications used across core regulatory and reporting systems. Your mission — develop, integrate, and enhance enterprise-grade software that … underpins finance and regulatory reporting processes. You’ll work across the stack using C#, .NET, SQL Server, and Oracle, collaborating with DevOps and cloud teams to deliver high-performance, resilient solutions in a highly regulated environment. This is a hands-on development role for someone who knows how to turn business requirements into robust, scalable applications — and can code … design, and integrate at a high technical standard. What you’ll be doing: Develop and maintain .NET applications (both Windows and web-based). Build and optimise SQL Server and Oracle database components (PL/SQL & T-SQL). Support integration and automation initiatives across financial systems. Apply best practices in design, testing, and DevOps CI/CD pipelines. More ❯

Job Title/Corporate Title: C# .NET Full Stack Developer Contract: £750 - £950/day (Inside IR35) Location: London (Hybrid) You’ll be joining a major financial services organisation to design, build, and support Full Stack C# .NET applications used across core regulatory and reporting systems. Your mission — develop, integrate, and enhance enterprise-grade software that … underpins finance and regulatory reporting processes. You’ll work across the stack using C#, .NET, SQL Server, and Oracle, collaborating with DevOps and cloud teams to deliver high-performance, resilient solutions in a highly regulated environment. This is a hands-on development role for someone who knows how to turn business requirements into robust, scalable applications — and can code … design, and integrate at a high technical standard. What you’ll be doing: Develop and maintain .NET applications (both Windows and web-based). Build and optimise SQL Server and Oracle database components (PL/SQL & T-SQL). Support integration and automation initiatives across financial systems. Apply best practices in design, testing, and DevOps CI/CD pipelines. More ❯

Job Title/Corporate Title: C# .NET Full Stack Developer Contract: £750 - £950/day (Inside IR35) Location: London (Hybrid) You’ll be joining a major financial services organisation to design, build, and support Full Stack C# .NET applications used across core regulatory and reporting systems. Your mission — develop, integrate, and enhance enterprise-grade software that … underpins finance and regulatory reporting processes. You’ll work across the stack using C#, .NET, SQL Server, and Oracle, collaborating with DevOps and cloud teams to deliver high-performance, resilient solutions in a highly regulated environment. This is a hands-on development role for someone who knows how to turn business requirements into robust, scalable applications — and can code … design, and integrate at a high technical standard. What you’ll be doing: Develop and maintain .NET applications (both Windows and web-based). Build and optimise SQL Server and Oracle database components (PL/SQL & T-SQL). Support integration and automation initiatives across financial systems. Apply best practices in design, testing, and DevOps CI/CD pipelines. More ❯

Job Title/Corporate Title: C# .NET Full Stack Developer Contract: £750 - £950/day (Inside IR35) Location: London (Hybrid) You’ll be joining a major financial services organisation to design, build, and support Full Stack C# .NET applications used across core regulatory and reporting systems. Your mission — develop, integrate, and enhance enterprise-grade software that … underpins finance and regulatory reporting processes. You’ll work across the stack using C#, .NET, SQL Server, and Oracle, collaborating with DevOps and cloud teams to deliver high-performance, resilient solutions in a highly regulated environment. This is a hands-on development role for someone who knows how to turn business requirements into robust, scalable applications — and can code … design, and integrate at a high technical standard. What you’ll be doing: Develop and maintain .NET applications (both Windows and web-based). Build and optimise SQL Server and Oracle database components (PL/SQL & T-SQL). Support integration and automation initiatives across financial systems. Apply best practices in design, testing, and DevOps CI/CD pipelines. More ❯

Collaborate with software engineers to align infrastructure delivery with development requirements. Diagnose and resolve infrastructure issues, applying fixes and process improvements. Contribute to internal DevOps standards and documentation. Core Requirements Proven experience with Terraform - advanced Infrastructure as Code deployment on Azure. Strong Azure background, including virtual networks, storage and application gateways. CI/CD pipeline management experience (GitLab … Azure DevOps). Experience with containerisation (Docker, Kubernetes/AKS). Familiarity with security best practices - encryption, access control, compliance frameworks. Hands-on technical foundation in either software development (.NET/C# preferred) or infrastructure engineering. Beneficial Experience Exposure to Azure services: Cosmos DB, PostgreSQL, Redis Cache, Service Bus, Key Vault, Storage Accounts and PrivateLink integrations. Experience with monitoring … tools (Grafana, Prometheus) and RESTful APIs (Postman). Awareness of cloud security tools such as CSPM, workload protection and WAFs. Knowledge of .NET Core/.NET 8 environments and modern single-page application frameworks. We encourage candidates from all backgrounds to apply, reaffirming our commitment to diversity and inclusion, and welcoming applications regardless of race, religion More ❯

Collaborate with software engineers to align infrastructure delivery with development requirements. Diagnose and resolve infrastructure issues, applying fixes and process improvements. Contribute to internal DevOps standards and documentation. Core Requirements Proven experience with Terraform - advanced Infrastructure as Code deployment on Azure. Strong Azure background, including virtual networks, storage and application gateways. CI/CD pipeline management experience (GitLab … Azure DevOps). Experience with containerisation (Docker, Kubernetes/AKS). Familiarity with security best practices - encryption, access control, compliance frameworks. Hands-on technical foundation in either software development (.NET/C# preferred) or infrastructure engineering. Beneficial Experience Exposure to Azure services: Cosmos DB, PostgreSQL, Redis Cache, Service Bus, Key Vault, Storage Accounts and PrivateLink integrations. Experience with monitoring … tools (Grafana, Prometheus) and RESTful APIs (Postman). Awareness of cloud security tools such as CSPM, workload protection and WAFs. Knowledge of .NET Core/.NET 8 environments and modern single-page application frameworks. We encourage candidates from all backgrounds to apply, reaffirming our commitment to diversity and inclusion, and welcoming applications regardless of race, religion More ❯

Full Stack | Angular | C# | .NET | Energy Trading | £750/Day OUTSIDE IR35 | 6-month rolling | Hybrid | LDN Our client is looking for a C# .NET Engineer for a 6-month rolling project, working at a leading Energy Trading house. This client deals in both physical and non-physical Energy products as well as trading Commodities. They have recently … head count to their operations and trading team to enhance the Energy trading capability within the company. This has resulted in the need for this Full Stack Angular C# .NET developer to join them as they enhance their energy trading desk within the company. This developer will be needed to come into the team as an established Energy Trading … as leading and upskilling peers around them. Having previous trading experience in the Energy Trading space is going to be essential for this role. This Full Stack Angular C# .NET engineering role is: 💸 This role is paying up to £750/day Inside IR35 💻 This hybrid role is 3 days in office 📍 The office is in Central London Technology More ❯

Full Stack | Angular | C# | .NET | Energy Trading | £750/Day OUTSIDE IR35 | 6-month rolling | Hybrid | LDN Our client is looking for a C# .NET Engineer for a 6-month rolling project, working at a leading Energy Trading house. This client deals in both physical and non-physical Energy products as well as trading Commodities. They have recently … head count to their operations and trading team to enhance the Energy trading capability within the company. This has resulted in the need for this Full Stack Angular C# .NET developer to join them as they enhance their energy trading desk within the company. This developer will be needed to come into the team as an established Energy Trading … as leading and upskilling peers around them. Having previous trading experience in the Energy Trading space is going to be essential for this role. This Full Stack Angular C# .NET engineering role is: 💸 This role is paying up to £750/day Inside IR35 💻 This hybrid role is 3 days in office 📍 The office is in Central London Technology More ❯

Full Stack | Angular | C# | .NET | Energy Trading | £750/Day OUTSIDE IR35 | 6-month rolling | Hybrid | LDN Our client is looking for a C# .NET Engineer for a 6-month rolling project, working at a leading Energy Trading house. This client deals in both physical and non-physical Energy products as well as trading Commodities. They have recently … head count to their operations and trading team to enhance the Energy trading capability within the company. This has resulted in the need for this Full Stack Angular C# .NET developer to join them as they enhance their energy trading desk within the company. This developer will be needed to come into the team as an established Energy Trading … as leading and upskilling peers around them. Having previous trading experience in the Energy Trading space is going to be essential for this role. This Full Stack Angular C# .NET engineering role is: 💸 This role is paying up to £750/day Inside IR35 💻 This hybrid role is 3 days in office 📍 The office is in Central London Technology More ❯