1 to 25 of 55 .NET Software Engineer Jobs in London

Senior Full Stack Software Engineers with a background in software development using C#/.NET and Blazor OR Angular are required by this major client, to join their teams in Glasgow who build a range of products to support one of their core business functions. To secure one of these Senior Software Engineer roles you … must come from a Software Development background and be able to demonstrate the following experience: Be a subject matter expert in full stack C#/.Net Core. Must have hands on experience in Front End development using Blazor, Angular OR React Demonstrable experience building distributed systems and secure products at scale. Have a good understanding of design practices … Azure, CI/CD tooling (Github Actions, Azure DevOps etc) Experience building infrastructure testing within the pipeline for automated deployments Knowledge of Database systems and models In these Senior Software Engineering roles you will have the chance to work on a wide range of in house and client facing applications as part of one of their small Agile Squads More ❯

Join to apply for the Senior Software Engineer (.NET, SQL) role at Frontiers Join to apply for the Senior Software Engineer (.NET, SQL) role at Frontiers Who We Are At Frontiers we are on a mission to make all science open, enabling the research community to develop thesolutions we need to live healthy lives … dedicate three days each year to volunteer Additional benefits depending on your location (e.g. pension plan and private medical care) About the Role : We are looking for an enthusiastic .NET Engineer to join our team in evolving Frontiers' publishing platform. The platform is large and complex, combining both modern and legacy technologies. This role involves maintaining and improving … systems built with older technologies while contributing to the gradual transition toward a more modern and scalable architecture. You will work across the stack, developing and maintaining features using .NET, Vue.js, and other technologies. As part of this transformation, you'll help rebuild legacy components with modern solutions, ensuring better performance, maintainability, and integration across the platform. A strong More ❯

Exciting opportunity for a Senior .Net C# Software Engineer to join this global Energy company. This is an exciting time to join this world-leading Energy company as it evolves from a traditional Oil & Gas enterprise into a future-focused Energy leader. This transformation includes the establishment of a highly successful new Power Trading desk within the … to the success of this evolution, working alongside some of the industry’s top professionals and leveraging the very latest technology. Key Requirements – Essentials • 8+ years of hands-on software development experience, spanning front-end, back-end, and cloud automation/orchestration. • Strong proficiency in back-end development using C# and .NET Core 5/6. • Cloud-native More ❯

Exciting opportunity for a Senior .Net C# Software Engineer to join this global Energy company. This is an exciting time to join this world-leading Energy company as it evolves from a traditional Oil & Gas enterprise into a future-focused Energy leader. This transformation includes the establishment of a highly successful new Power Trading desk within the … to the success of this evolution, working alongside some of the industry’s top professionals and leveraging the very latest technology. Key Requirements – Essentials • 8+ years of hands-on software development experience, spanning front-end, back-end, and cloud automation/orchestration. • Strong proficiency in back-end development using C# and .NET Core 5/6. • Cloud-native More ❯

Social network you want to login/join with: Senior Software Engineer (.NET, SQL), London col-narrow-left Client: Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 9be8a57b7cce Job Views: 4 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Who we are At Frontiers we are on … dedicate three days each year to volunteer Additional benefits depending on your location (e.g. pension plan and private medical care) About the Role : We are looking for an enthusiastic .NET Engineer to join our team in evolving Frontiers' publishing platform. The platform is large and complex, combining both modern and legacy technologies. This role involves maintaining and improving … systems built with older technologies while contributing to the gradual transition toward a more modern and scalable architecture. You will work across the stack, developing and maintaining features using .NET, Vue.js, and other technologies. As part of this transformation, you'll help rebuild legacy components with modern solutions, ensuring better performance, maintainability, and integration across the platform. A strong More ❯

Join to apply for the Software Engineer (.NET, C#) role at alteam Join to apply for the Software Engineer (.NET, C#) role at alteam Get AI-powered advice on this job and more exclusive features. This range is provided by alteam. Your actual pay will be based on your skills and experience — talk with … your recruiter to learn more. Base pay range $65,000.00/yr - $75,000.00/yr Job Title : .NET & C# Backend Developer Location : Remote (US time zone preferred) Type : Full-Time | Contractor or Employee Start Date : ASAP Project : 6-12 montsh for a fast-growing US SaaS scale-up About Us Alteam is more than just a tech company … training opportunities. Our collaboration with various organizations allows us to build teams that are skilled and adept in agile delivery standards. The Role We’re looking for a skilled .NET & C# Backend Developer to join our team and contribute to the ongoing development of our SaaS platform. You will work directly with our Tech Lead to build new backend More ❯

people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and related services. Additionally, the … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … frameworks/libraries such as React. Proficiency in mobile device technologies such for Kotlin (Android) and Swift (iOS) Strong understanding of server-side languages and frameworks such as Node.js, .NET, PHP, GoLang, Rust Experience with database management systems e.g., MySQL, PostgreSQL, MS SQL Server MongoDB). Familiarity with Git and branching strategies such as GitOps Solid understanding of testing More ❯

Senior) Software Engineer C# & .NET d/f/m Join to apply for the (Senior) Software Engineer C# & .NET d/f/m role at RWE (Senior) Software Engineer C# & .NET d/f/m 1 week ago Be among the first 25 applicants Join to apply for … the (Senior) Software Engineer C# & .NET d/f/m role at RWE RWE Supply & Trading GmbH To start as soon as possible, full time/part time, permanent RWE Supply & Trading GmbH To start as soon as possible, full time/part time, permanent Functional area: IT/Digital Remuneration: tariff/non-tariff Department … us! RWE Supply & Trading has recently introduced a new cloud based data analytics platform and as part of a new and expanding team we are looking for an experienced Software Engineer to play key role in expanding our platform capability. Using the latest tech, the Lead in Data (LiD) platform has revolutionised the searching, sharing, transforming and on More ❯

Social network you want to login/join with: Senior .Net C# Software Engineer - Global Energy Co, London Client: Eaglecliff Recruitment Location: London, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 27.06.2025 Expiry Date: 11.08.2025 Job Description: Exciting opportunity for a Senior .Net C# Software Engineer to join … to the success of this evolution, working alongside some of the industry’s top professionals and leveraging the very latest technology. Key Requirements – Essentials 8+ years of hands-on software development experience, spanning front-end, back-end, and cloud automation/orchestration. Strong proficiency in back-end development using C# and .NET Core 5/6. CI/ More ❯

Social network you want to login/join with: Snr Software Engineer - Full Stack (C# .Net) (Remote in the United Kingdom), London col-narrow-left Client: KnowBe4 Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: db1ac7baf1a8 Job Views: 22 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description … products for KnowBe4’s customers, alongside other engineers in a fast-paced, agile development environment. To learn more about the product this position deals with - click here: Responsibilities: Develops software using the KnowBe4 Software Development Lifecycle and Agile Methodologies Recommends solutions to engineering problems Assist other team members by providing technical direction Defines approaches and solutions to complex … native infrastructure in a CI/CD environment. 3-5+ Years of experience working in a compiled programming language Solid hands-on Object-Oriented Programming (OOP) experience C# .Net Solid understanding of software design patterns (best practices) and anti-patterns Solid hands-on experience implementing REST and/or GraphQL based micro-services Able to design and More ❯

Backend Software Engineer/Developer (C# .Net Core Cloud CQRS) London/WFH to £80k Are you a technologist with strong backend C# .Net skills? You could be progressing your career at in a senior, hands-on role Backend Software Engineer role at a successful and scaling Retail FX Brokerage working on complex and … interesting Greenfield systems with continual learning and self development opportunities. As a Backend Software Engineer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but … Location/WFH: You'll join colleagues in the London office Monday to Wednesday with flexibility to work from home Thursday and Friday. About you: You have strong C# .Net Core backend development experience You have a good knowledge of microservices and Cloud (AWS or Azure) experience, ideally you'll have some experience with Docker/Kubernetes, EKS You More ❯

Backend Software Engineer/Developer (C# .Net Core Cloud CQRS) London/WFH to £80k Are you a technologist with strong backend C# .Net skills? You could be progressing your career at in a senior, hands-on role Backend Software Engineer role at a successful and scaling Retail FX Brokerage working on complex and … interesting Greenfield systems with continual learning and self development opportunities. As a Backend Software Engineer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but … Location/WFH: You'll join colleagues in the London office Monday to Wednesday with flexibility to work from home Thursday and Friday. About you: You have strong C# .Net Core backend development experience You have a good knowledge of microservices and Cloud (AWS or Azure) experience, ideally you'll have some experience with Docker/Kubernetes, EKS You More ❯

actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Backend Software Engineer/Developer (C# .Net Core Cloud CQRS) London/WFH to £80k Are you a technologist with strong backend C# .Net skills? You could be … progressing your career at in a senior, hands-on role Backend Software Engineer role at a successful and scaling Retail FX Brokerage working on complex and interesting Greenfield systems with continual learning and self development opportunities. As a Backend Software Engineer you'll be designing and developing high quality, maintainable, and reliable code for a real … time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern development environment with microservices. There are many technical challenges to explore, the initial project will be to build a KYC system More ❯

The role We are looking for a talented software .NET developer with extensive experience in .NET/C# to join our team. In this role, you’ll design, develop, and maintain our Definely products—from rich WPF-based desktop applications to resilient backend services. This is an opportunity to lead by example, mentor junior team members, and … using WPF. Leverage modern UI design principles and patterns (such as MVVM) to ensure clean, maintainable, and scalable code. Build and maintain robust backend services, APIs, and libraries using .NET/C#. Technical Leadership & Collaboration Participate in design and code reviews to ensure high-quality, maintainable solutions. Collaborate closely with product managers, designers, and other engineers to align on … Quality & Best Practices Write clean, well-documented code accompanied by unit and integration tests. Continuously improve application performance, scalability, and security. Advocate for and implement best practices and modern software development methodologies (e.g., Agile/Scrum). Problem Solving & Innovation Troubleshoot and resolve complex technical issues as they arise. Contribute to architectural discussions and help drive the evolution of More ❯

s largest reinsurance brokerages! As a key player in one of our teams you'll have the exciting opportunity to design, create, test, and deploy cutting-edge web-based software products that drive our business forward. In this exciting role, you'll not only build world-class software solutions but also lead the charge in implementing best practices … team, and make a real impact in a role that promises excitement and growth at every turn! How you'll make an impact Designing and developing all aspects of software products for use across Gallagher Re, in a senior capacity, taking ownership for large/complex applications across the full development lifecycle Enhancing and refactoring existing products using the … latest versions of .net, and optimising for cloud native deployment Providing coaching and training to colleagues across the organisation Conducting code reviews of work carried out across the team Supporting the development and application of consistent standards and patterns across the team and wider business Conducting performance and security tests against new and existing codebases Analysing high level requirements More ❯

s largest reinsurance brokerages! As a key player in one of our teams you'll have the exciting opportunity to design, create, test, and deploy cutting-edge web-based software products that drive our business forward. In this exciting role, you'll not only build world-class software solutions but also lead the charge in implementing best practices … team, and make a real impact in a role that promises excitement and growth at every turn! How you'll make an impact Designing and developing all aspects of software products for use across Gallagher Re, in a senior capacity, taking ownership for large/complex applications across the full development lifecycle Enhancing and refactoring existing products using the … latest versions of .net, and optimising for cloud native deployment Providing coaching and training to colleagues across the organisation Conducting code reviews of work carried out across the team Supporting the development and application of consistent standards and patterns across the team and wider business Conducting performance and security tests against new and existing codebases Analysing high level requirements More ❯

Staff Software Engineer - Scale-Up Environment - £120,000 + Bonus & Benefits | Hybrid - 2 Days/Week in Central London A fast-growing scale-up is overhauling its platform and hiring a Staff Software Engineer to lead major parts of that transformation. This is a hands-on, high-impact role where you'll shape architecture, mentor engineers … Hybrid: 2 days/week onsite in Central London High autonomy, greenfield projects, and an inclusive team culture 🔍 What you'll be doing: Own and evolve backend systems in .NET Core/C# Lead on platform performance, automation, observability, and CI/CD Build infrastructure across AWS and Azure using Terraform and Docker Help introduce Go and Python into … the stack Mentor engineers and drive engineering best practices ⚙️ Tech environment: .NET Core/C#, ASP.NET Core AWS, Azure, Lambda, DynamoDB, Azure DevOps Terraform, Docker, CI/CD pipelines Bonus: Go, Python, Cloudflare, React, TypeScript Ready to shape the future of a modern platform? Apply now More ❯

Social network you want to login/join with: Backend Software Engineer C# .Net - Trading, london col-narrow-left Client: Client Server Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 28.06.2025 Expiry Date: 12.08.2025 col-wide Job Description: Backend Software Engineer/Developer (C# … .Net Core Cloud CQRS) London/WFH to £80k Are you a technologist with strong backend C# .Net skills? You could be progressing your career at in a senior, hands-on role Backend Software Engineer role at a successful and scaling Retail FX Brokerage working on complex and interesting Greenfield systems with continual learning and self … development opportunities. As a Backend Software Engineer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack More ❯

Direct message the job poster from Station Associate Director - Station ️ To attract the top talent in Product and Software Engineering, you must approach things uniquely - I'll guide you... London, United Kingdom | Full-time | Permanent I'm working with a global business undergoing a major digital transformation, and they’re looking to bring in an experienced Software Engineer to help shape the future of their Azure-based platform. If you're confident with .NET, Azure, event-driven architecture, and keen to work on meaningful, large-scale projects, this could be a great fit. The Opportunity You'll be joining a collaborative, cross-functional engineering team that’s modernising a core platform using cloud-native technologies. Key … responsibilities include: Developing high-performance Web APIs with .NET Core Designing and optimising Azure-hosted SQL PaaS databases using Entity Framework Participating in architecture discussions, design sessions, and Agile ceremonies Contributing to a culture of clean code and continuous improvement What They're Looking For 5+ years’ experience with .NET, SQL Server, Entity Framework, and Azure Solid understanding More ❯

Senior Software Engineer C# .Net - relocate to Newcastle! This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server 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, progressing your career and working on complex and interesting … has secure backing and an established Hedge Fund client as a partner, creating a finance technology hub that brings together a wealth of talent and experience. As a 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 More ❯

Senior Software Engineer| C# | ASP .NET MVC | Fintech | FX Payments | London | Hybrid | Up to £95,000 + Package Senior Software Engineer| C# | ASP .NET MVC | Fintech | FX Payments | London | Hybrid | Up to £95,000 + Package 3 days ago Be among the first 25 applicants Senior Software Engineer | FinTech | C# .NET MVC | SQL | Front End | London, Hybrid | up to £95,000 + Benefits An experienced Senior Software Engineer is needed to join our FinTech Client who is breaking new ground within the Financial Services space, as the world becomes an even more mobile and remote working space. Our client empowers some of the most respected financial institutions in … everything they do. They are not just another SAAS provider - they are the driving force behind some of the most successful financial firms in the world. As the Senior Software Engineer, you will be part of a cross-functional team of Developers, working with Designers, Analysts, and Software Testers, in creating, maintaining, and modifying systems that meet More ❯

Principal Software Engineer -C#/.Net,React Introduction: Are you searching for an opportunity to play a key role in driving the dramatic growth of a highly successful software company? At Poppulo, we're working on what's next in communications and workplace technology. As a pioneer in this industry, we understand that meaningfully reaching every … requirements. We believe in fostering an environment where there is a diversity of perspectives, in hopes that we can all thrive. The Opportunity We are seeking a skilled Principal Software Development Engineer to join our Extensions & Adapters team within Data Integrations. In this role, you'll build and enhance plugins that expand the functionality of our Integration Framework. … enthusiasm for AI technologies, especially Large Language Models (LLMs), generative AI, or agentic coding tools, is strongly preferred. Key Responsibilities: Drive the migration and modernization of existing C#/.NET-based integration services to a contemporary web stack (TypeScript, NodeJS, React). Develop, maintain, and enhance scalable integrations and APIs to facilitate seamless third-party data exchange. Collaborate with More ❯

Social network you want to login/join with: Software Engineer (.NET C#), south west london col-narrow-left Client: TransPerfect Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 1 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: We’re looking for a Backend Engineer to join our global team to be responsible for the quality, development, and execution of our software products. You will be part of a technology department that is comprised of a successful and multidisciplinary group of professionals located across the globe – Barcelona, New York, London, Manchester, Bucharest and India. If you’re ready to join a growing company … against potential threats Develop automation tests/collaborate with automation engineers to ensure business needs are met, and allow for regression testing Work closely with users to provide personalized software support as needed Stay updated on emerging technologies and industry trends to continuously improve our backend infrastructure Document application support and operational procedures Mentor junior engineers and provide technical More ❯

schools across Australia, Ireland, and the UK. We're on a journey of growth with vast market opportunities ahead, and we're searching for a passionate Senior Software Engineer to join our dynamic team. If you're a thinker and a problem-solver who thrives in a collaborative environment and celebrates diversity, you'll fit right in. You … and improving site scalability, infrastructure, and testing. You'll do all of this within a highly collaborative and agile environment where your contributions are valued and impactful. As a Software Engineer you will: Design, develop, and maintain secure, scalable software that will be used by thousands of students, parents, and teachers worldwide – making a tangible difference in … their daily lives. Champion software craftsmanship, clean code, and pair programming to inspire quality and best practices across the team. Your expertise will help us build robust and maintainable solutions. Cultivate strong relationships with your team. We encourage open communication, so you'll be generous with your thoughts and feedback, and equally open to receiving it. Grow, learn, and More ❯

We’re looking for a Backend Engineer to join our global team to be responsible for the quality, development, and execution of our software products. You will be part of a technology department that is comprised of a successful and multidisciplinary group of professionals located across the globe – Barcelona, New York, London, Manchester, Bucharest and India. If you … against potential threats Develop automation tests/collaborate with automation engineers to ensure business needs are met, and allow for regression testing Work closely with users to provide personalized software support as needed Stay updated on emerging technologies and industry trends to continuously improve our backend infrastructure Document application support and operational procedures Mentor junior engineers and provide technical … us what you got if you aren’t a perfect fit): Bachelor's or Master's degree in computer science, engineering, or related field 3+ years of experience in software development, with a focus on building scalable and reliable systems Extensive knowledge of DotNet C#, LINQ, MS SQL, Entity Framework and related technologies Capable to use version control software More ❯