Permanent Senior C# Software Engineer Jobs in England

1 to 25 of 54 Permanent Senior C# Software Engineer Jobs in England

Senior Software Engineer (C#/.NET)

London, England, United Kingdom
Hybrid / WFH Options
Genius Sports
Social network you want to login/join with: Senior Software Engineer (C#/.NET), London col-narrow-left Client: Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 29a3e4e091e5 Job Views: 5 Posted: 02.06.2025 Expiry Date: 17.07.2025 col-wide Job Description: A bit about … bigger picture are important at the Senior level. WHAT SKILLS DO YOU HAVE? You will have expert-level knowledge of at least one object-oriented programming language (C#, Java, JS, Kotlin, Python, PHP, Golang, C++) You will have a strong understanding of the principles of good software design. Familiarity with core concepts such as information … as code. You will have experience in messaging and asynchronous communication technologies IT IS ADVANTAGEOUS FOR YOU TO HAVE KNOWLEDGE OF THE FOLLOWING: You will have expert knowledge of C# Operation of Kubernetes Clusters Building cloud native applications Mathematical Aptitude, particularly statistics Front-end web technologies Domain Driven Design WHAT WE EXPECT FROM OUR CO-WORKERS Curiosity and strong More ❯
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Snr Software Engineer - Full Stack (C# .Net) (Remote in the United Kingdom)

London, England, United Kingdom
Hybrid / WFH Options
KnowBe4
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 … 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 … cloud-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 More ❯
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(Senior) Software Engineer C# & .NET d/f/m

London, England, United Kingdom
RWE
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 … 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 … trading and analysis communities as well as support functions and will become an ever increasing asset across the group in the future. You will work apply your expertise in C# and .Net to build robust data services within the Mix system and help us future proof our architecture from a security and technological perspective . This role is perfect More ❯
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(Senior) Software Engineer C# & .NET d/f/m

Swindon, Wiltshire, United Kingdom
RWE AG
Senior) Software Engineer C# & .NET d/f/m Location(s): Swindon, Wiltshire, GB, SN5 6PB; Essen, NW, DE, 45141; London, City of London, GB, EC2R 8HP Company: RWE Supply & Trading GmbH Start Date: As soon as possible, full time/part time, permanent Functional area: IT/Digital Remuneration: tariff/… within our organization. Data is central to our trading and analysis activities and will continue to be a vital asset across the group. You will apply your expertise in C# and .NET to develop robust data services within the Mix system and help future-proof our architecture from security and technological perspectives. Experience with AWS environments is highly desirable. … If this sounds appealing, then apply now! Your future responsibilities Design and develop scalable back-end services and APIs using C# and .NET 8 Implement data extraction and transformation logic within .NET environments Utilize Python for data processing, automation, and application logic as needed Enhance and maintain the Market Data API and liaise with business teams for new requirements More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer| C# | ASP .NET MVC | Fintech | FX Payments | London | Hybrid | Up to £[...]

London, England, United Kingdom
Hybrid / WFH Options
VirtueTech Recruitment Group
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 1 day 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 … 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 More ❯
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Senior Software Engineer - C#

Reading, England, United Kingdom
Kaseya
Join to apply for the Senior Software Engineer - C# role at Kaseya Join to apply for the Senior Software Engineer - C# role at Kaseya Get AI-powered advice on this job and more exclusive features. Kaseya is the leading provider of complete IT infrastructure and security … professional eager to join a team that values innovation and strives to make a meaningful difference in the world of technology, we want to hear from you. The Role: C# .NET Software Engineer Join the DRMM Team , a group dedicated to enhancing and maintaining the software that powers our global remote management and … using F# and Fable, enables users to connect and control desktops from anywhere in the world, delivering superior performance and reliability in real-time. About You (Essential): Experience with C# and the .NET Ecosystem: Minimum of 5 years, including strong proficiency with the latest versions of .NET. Cloud Computing Expertise: Hands-on experience with cloud platforms such as AWS More ❯
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C# Senior Software Engineer

Stockport, Lancashire, United Kingdom
Hybrid / WFH Options
Adria Solutions Ltd
C# Senior Software Engineer Our client is an established software company with over 20 years of experience delivering innovative digital platforms to a wide user base. They are looking for a Senior Software Developer to join a small, collaborative team working across the full Microsoft and Azure … both legacy and greenfield systems, contribute to architectural decisions, and support the continuous improvement of development practices. Key responsibilities: Develop and maintain scalable, high-quality software using C#, .NET, and Azure Lead on coding tasks and contribute to system architecture Perform code reviews and mentor junior developers Collaborate across teams to deliver business-critical solutions Provide second … line technical support as needed Essential experience: 5+ years in commercial software development Proficiency in C#, .NET, SQL Server, and JavaScript Experience with Azure services and DevOps tools Understanding of secure coding and software development best practices Desirable experience: Microservices, containers (Docker/Kubernetes) Front-end frameworks such as Vue.js Messaging systems (e.g. Service Bus More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

C# Senior Software Engineer

Manchester, North West, United Kingdom
Hybrid / WFH Options
Adria Solutions
C# Senior Software Engineer Our client is an established software company with over 20 years of experience delivering innovative digital platforms to a wide user base. They are looking for a Senior Software Developer to join a small, collaborative team working across the full Microsoft and Azure … both legacy and greenfield systems, contribute to architectural decisions, and support the continuous improvement of development practices. Key responsibilities: Develop and maintain scalable, high-quality software using C#, .NET, and Azure Lead on coding tasks and contribute to system architecture Perform code reviews and mentor junior developers Collaborate across teams to deliver business-critical solutions Provide second … line technical support as needed Essential experience: 5+ years in commercial software development Proficiency in C#, .NET, SQL Server, and JavaScript Experience with Azure services and DevOps tools Understanding of secure coding and software development best practices Desirable experience: Microservices, containers (Docker/Kubernetes) Front-end frameworks such as Vue.js Messaging systems (e.g. Service Bus More ❯
Employment Type: Permanent, Work From Home
Salary: £60,000
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Senior Software Engineer with C# .net Fixed Income FX

City of London, London
Nexus Jobs Limited
C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# .NET. The Client would like meet candidates ideally with some … external reporting/tradeflow and pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills :- Minimum 3 to 5 years experience of Microsoft web technologies ( C#, ASP.NET Core MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce clean, well-written, fully tested More ❯
Employment Type: Permanent
Posted:

Senior Software Engineer with C# .net Fixed Income FX

London, United Kingdom
Onyx-Conseil
Job Description C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# .NET. The Client would like to meet candidates … external reporting/tradeflow and pricing APIs. Maintaining the company's daily operation on the existing platforms. Essential skills: Minimum 3 to 5 years experience of Microsoft web technologies (C#, ASP.NET Core MVC). Relational database experience (SQL Server). Proactively able to build relationships with stakeholders: sales, brokers, middle office, external vendors. Ability to produce clean, well-written More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer, C++, C#, .NET, SDK, Hybrid, COR7267

Cambridge, Cambridgeshire, East Anglia, United Kingdom
Hybrid / WFH Options
Corriculo Ltd
Senior Software Engineer, C++, C#, .NET, SDK, Hybrid, COR7267 An exciting opportunity has arisen for a Senior Software Engineer to join my client, a global leader in the scientific manufacturing and distribution sector based in Cambridgeshire. This role focuses on the ongoing development of a newly released … electronics and embedded systems teams to deliver new features and improvements. The ideal candidate will have a strong software engineering background with hands-on experience in C++, C#, and .NET technologies. Experience in full software lifecycle development and object-oriented programming is essential, as is the ability to contribute to design, implementation, and testing in … Private healthcare and dental • Income protection • Local discounts • Hybrid working available What's Required of the Senior Software Engineer? • Proven experience with C++, C#, and .NET, particularly with Visual Studio and WPF (MVVM) • Experience developing software for hardware control systems or similar environments • Ideally experience with cross-platform development (Windows, Linux More ❯
Employment Type: Permanent, Work From Home
Posted:

Senior Software Engineer C# Angular Azure

Ipswich, Suffolk
Hybrid / WFH Options
Client Server
Senior Software Engineer/Full Stack Developer (C# Angular Azure) Ipswich/WFH to £80k Are you a Senior Software Engineer who enjoys working with a range of technologies across the full stack? You could be progressing your career in a senior, hands-on Software … the rest of the globe, there's plenty of new projects to get stuck into with a range of complex and interesting work from Angular UIs through to complex C# .Net and Azure on the backend. Location/WFH: There's a flexible work from home hybrid model, you'll join colleagues in the Ipswich office (close to the … station), twice a week for team meet-ups and stakeholder meetings with the other three days work from home. About you: You have strong C# .Net backend coding skills You have strong front end/client-side experience, with modern Angular (they're using Angular 16/18), JavaScript, TypeScript or React experience You have a good knowledge of More ❯
Employment Type: Permanent
Salary: £70,000 - £80,000
Posted:

Senior Software Engineer - Blazor, Azure, C#

Gloucestershire, England, United Kingdom
Hybrid / WFH Options
Future Talent Group
End (Blazor) Engineers (Mid and Senior roles open) - Southwest HQ – Remote First Working Front End (Blazor) Engineers - Mid and Senior level Software Engineers (C#/Azure/API) Southwest HQ – Remote First Salary - £65,000/£70,000 12 Month FTC - View to permanent thereafter The opportunity to join a brand-new innovation … focussed team building a new platform which will transform a global marketplace. As a Software Engineer in this team you will engage in regular agile sessions, collaborating closely with your team to implement our roadmap while applying your technical and critical-thinking skills. You will promote best practices and foster a culture of learning and collaboration … will help elevate standards and quality while maximising team throughput through a strong CI/CD mindset. Your effective communication skills will enable you to work alongside other senior team members, taking lead roles in architectural and technical design discussions and presenting these during team refinement sessions. Technical Stack: Front End Blazor, Microservices, RESTful API, HTML5, CSS3 Modern More ❯
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Senior Software Engineer C# / .Net

Manchester, United Kingdom
Cloud Imperium Games Limited
Job Description: Senior Tools Programmer at Cloud Imperium Games We are a crowdfunded company with a dedicated and enthusiastic community of backers, committed to creating the "Best Damn Space Sim Ever". We value exceptional and diverse talent. The Senior Tools Programmer (based in Manchester) will take full ownership of existing tools and develop new solutions … Lead and Producer. Provide accurate estimates and support the Tools Team on all projects. Continuously improve user experience, capabilities, and performance. Mentor junior team members. Qualifications: Proven experience in C#, WPF or Blazor, and SQL in a commercial environment. Passion for creating user-friendly tools. Ability to work well in a team and handle large or legacy codebases. Experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer (C#, .NET, JavaScript)

Peterborough, England, United Kingdom
Hybrid / WFH Options
BGL Group
simple to switch and save money and that’s why good things happen when you meerkat. We’d love you to be part of our journey. As the Senior Software Engineer, you will lead development of first-class technical solutions whilst also actively contributing to and leading a culture of innovation, enthusiasm and passion. … to support the goals and objectives on your team. You will have a focus on end-to-end responsibility for the development, quality, observability, and testing of the software you build. Everyone is welcome. We have a culture of creativity. We approach our work passionately, improve constantly and celebrate our wins at every turn. We are an inclusive … Take responsibility for key aspects of the development life cycle, from design to implementation, testing, security, and maintenance. Ensure testing and security standards are well embedded into the software the team produces. Be active in a community of practice for engineering to develop and share knowledge. Lead design reviews, prototype new technology and evaluate technical feasibility with your More ❯
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Senior Software engineer - C#/WPF - Perm opportunity - Southampton

Southampton, Hampshire, United Kingdom
Endeavour Recruitment Solutions
Senior Software engineer - C#/WPF - Perm opportunity - Southampton Country: United Kingdom Location: Southampton Sector: Software Developer Job Type: Permanent Technologies: C# WPF Net Framework MS SQL server CLR Implementation Design Senior Software engineer - C#/WPF - Perm opportunity - Southampton Exciting opportunity to … join a Financial Technology company based in Southampton This role is for a dynamic and driven C#, WPF developer to bring knowledge and experience to assist our client expand and build their portfolio of products. Duties : Translate application storyboards and use cases into functional applications. Design, build, and maintain efficient, reusable, and reliable C# code. Ensure the best … performance, quality, and responsiveness of applications. Identify bottlenecks and bugs, and devise solutions to these problem. Help maintain code quality, organization, and automatization. Knowledge, skills and experience: Proficient in C#, with a good knowledge of its ecosystems. Proficient in WPF, with a good knowledge of its design methodologies. Familiarity with the .NET framework. Strong understanding of object-oriented programming. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

C#, Senior Software Engineer

London, England, United Kingdom
Skypath Ltd
Social network you want to login/join with: We are pursuing a Senior Back-end Software Engineer with expertise in C#/.Net to join a newly-formed team at a leading global company in the travel industry. This project aims to manage all technical supply content development and provide the best … Develop new features, new modules. • Participate to DevOps (automated CI/CD, testing, monitoring, observability) Experience/Qualifications: • Proven experience of working in complex development projects. • Confirmed experience in C# development. • DevOps knowledge is an asset. • Passion, Software Craftmanship, Culture of Excellence, Clean Code, Test Driven Development. • Fluent English (working in a multicultural and international team). … Professional/Technical Skills: • C# • .NET, ASP.NET Core Web API • Containers, Lambda • Redis, RabbitMQ, Aurora/PostgreSQL, DynamoDB • Infrastructure as Code (CloudFormation) • CI/CD, • High Availability • Scalable & performant platform • OpenSearch/ELK (Elasticsearch, Logstash, Kibana) • AWS The place of work: Hybrid, London office. #J-18808-Ljbffr More ❯
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Senior Software Engineer C# .Net - relocate to Newcastle!

London, England, United Kingdom
Client Server
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 … 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, and this is a great opportunity to be involved from the ground up and advance your career. More ❯
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Senior Software Engineer C# .Net - sports betting

London, England, United Kingdom
Hybrid / WFH Options
Recruitment Gamechangers
Senior Software Engineer C# .Net - sports betting Senior Software Engineer C# .Net - sports betting Recruitment Gamechangers provided pay range This range is provided by Recruitment Gamechangers. 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 Recruitment Gamechangers Recruitment Director (iGaming – UK & Europe) at Recruitment Gamechangers Senior Software Engineer - sports analytics/betting Salary: £75k-90k (plus very attractive bonus on top) Location: London or Leeds (Very relaxed regarding hybrid or remote working, if preferred) We are looking to fill 3 roles at … of releases. Experience and knowledge: Solid technical education with professional experience in the area of software development. Experience with .NET and .NET Core and good knowledge in C# and object oriented software development is preferred. However, we will also look at candidates with experience in similar technologies. Experience in microservices and web APIs, including message More ❯
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Snr Software Engineer (C# ASP.NET Angular) - London hybrid

London, England, United Kingdom
Hybrid / WFH Options
ZipRecruiter
Job Description Full Stack C#/Angular Developer - London (3 days a week) - £90-95K + Bonus & Benefits Senior Full Stack Developer with C#, .NET, and Angular is required to join a small, talented, and dynamic team in London (3 days a week onsite) playing a key role in a major tech modernisation project. This … well-established hedge fund, with a 30-year track record of success, is looking for an experienced Full Stack Engineer to help migrate legacy C# applications to Angular and contribute to the development of cutting-edge financial systems. You'll work in a collaborative environment, leveraging your skills in . NET, C#, Angular, SQL Server, and … of the team have been there for 5+ years! Apply now to join this forward-thinking development team and take your Full Stack Development skills to the next level! C#, Angular, Full Stack, London, ASP.NET, SQL Server, RabbitMQ. Financial experience not required. Must have the right to work in the UK. #J-18808-Ljbffr More ❯
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Senior Software Engineer C# .Net - FinTech

Newcastle Upon Tyne, England, United Kingdom
Client Server
Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You could be joining a FinTech start-up as a founding member … Software Engineer you will collaborate with a small, talented team to deliver the core 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 … Group university, backed by A's 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 More ❯
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Senior Software Engineer - C# / FinTech

City of London, London, United Kingdom
Hybrid / WFH Options
Connexa
of exciting projects, including playing a key role in the launch of a brand-new mobile app scheduled for September 2025. The successful candidate will bring deep expertise in C# development, cloud infrastructure, and AI technologies, contributing to the business' ongoing digital evolution. Main Purpose of the Role: Lead backend development and play a key role in the mobile … projects simultaneously within a fast-paced FinTech environment. What They Are Looking For: 7+ years of senior-level software development experience. Deep commercial experience with C# development. Strong knowledge of AWS cloud services and infrastructure. Proven experience with CI/CD pipeline development and deployment automation. Experience contributing to mobile app development projects. Keen interest … directly contribute to the delivery of a major FinTech mobile app launch. Apply today to be considered for this fantastic Senior Software Engineer (C#) opportunity. Interviews are taking place shortly! Keywords: Senior Software Engineer, C#, AWS, AI, Artificial Intelligence, CI/CD, Cloud Infrastructure, Mobile App More ❯
Employment Type: Permanent, Work From Home
Posted:

Senior Software Engineer - Leading Global FinTech - React/ TypeScript/ Node/ C# - Hybrid in Londo...

London, England, United Kingdom
Hybrid / WFH Options
ZipRecruiter
Job Description I am supporting a leading global FinTech based in London with their search for a Senior Software Engineer . You'll join one of their core engineering squads and work on a key platform used by their global customer base. This role involves working on a greenfield project, providing an opportunity to … make significant decisions and influence the project's direction and future developments. The ideal candidate is a passionate Engineer who can drive the product forward and effectively communicate with various stakeholders within the company. You will need to be a GREAT COMMUNICATOR and collaborate with a team of Engineers. A … strong passion for software development and engineering is essential. Required technical skills include: React.js - 6+ years (solid understanding of fundamentals & up-to-date with latest tools) TypeScript C# .Net Node.js Azure Additional qualities needed: Good Communication skills Stakeholder Management Fintech/Finance experience is a plus The company has an excellent office in Central London, with a More ❯
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Senior C# Software Engineer

Cambridge, Cambridgeshire, United Kingdom
Hybrid / WFH Options
Ecm Selection
Based in offices in central Cambridge (with hybrid work options available - 3 days a week in the office), this company develops software used for scientific engineering applications. Their software products … have been best-in-class for several years, and they progressively look forward to maintaining that position through new features and accessibility. Their software is based on C# with the use of TypeScript/JavaScript for web-based applications. For this role, they are looking to recruit an experienced C# software engineer … engineering practices and ensure high level of software maintainability. Requirements: 1st/2.1 in Computer Science or similar, and significant professional software experience using C# and .NET framework for Enterprise software products. Good communication skills - collaboration within the team is important. Demonstrable experience working on complex and large code bases. Additional experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

C# Software Engineer (Senior/Principal)

Basildon, Essex, United Kingdom
Hybrid / WFH Options
Leonardo UK Ltd
Job Description: C# Software Engineer (Senior/Principal) The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business, working on … a range of defence projects. Direct industry experience is not required; we are happy to explore all backgrounds and help develop our software engineers. What you will do: We want to develop a new generation of features and capabilities using innovative software solutions. You will be a key part of a community … of world-class software engineers who will continuously improve, collaborate, and innovate to create market-leading products within the defence industry. What we are looking for: Essential C# software development Machine-to-machine networking, working to third-party interface definitions Test frameworks and test development (not test-driven development) Microservices architecture/containerisation (development of More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Senior C# Software Engineer
England
10th Percentile
£61,375
25th Percentile
£65,313
Median
£72,500
75th Percentile
£80,938
90th Percentile
£82,625