726 to 750 of 803 C# Jobs in England

Senior Software Test & Validation Engineer

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
Sandwich, Kent, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum
acceptance criteria Ensuring full traceability and adherence to internal quality processes Hands-On Testing & Analysis Testing firmware and software written in C, C++, C#/.NET Verifying changes, documenting results, raising issues and driving resolution Supporting analysis of defects and root-cause investigations Working closely with software developers to improve … Engineering or related technical field Strong, proven experience delivering software/firmware validation in industry Technical capability Skilled across test design for C, C++, C# and .NET environments Experience with testing firmware on embedded hardware platforms Familiarity with tools such as Visual Studio, LabVIEW or similar test systems Understanding ...

FULL STACK DEVELOPER

Hiring Organisation
The FR Group
Location
Blackburn, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £45,000 per annum
event-driven data flows • Ensure reliable data syncing with proper error handling and retry logic Backend Development • Build and maintain services using .NET (C#) • Design and manage relational data models (SQL Server or similar) • Handle background processing and core business logic • Refactor and improve existing systems where needed Frontend … real-world load securely and reliably • Keep code clean, well-structured, and maintainable without heavy oversight Tech Stack Category Technologies Core Backend .NET/C#, SQL Server, REST APIs, Webhooks Frontend React (preferred), modern CSS, responsive design CMS/Web WordPress, Webflow, or similar Automation & Integration Power Automate, CRM platforms ...

Software Team Lead

Hiring Organisation
Smartbox Assistive Technology
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
responsibility for designing and implementing a scalable and high-performance software architecture using appropriate architectural standards and best practices. Writing clean, working, cross-platform C# code (.NET 8) and associated tests, and improving the standard of existing code as you touch it to make it more testable, reliable and maintainable. … iterative development. Good understanding of Agile/Scrum methodologies and their use in software teams. 5+ years of professional software development experience in modern C# or similar (e.g. Java, C++). Experience using AI-assisted software development tools (e.g. Claude Code or similar) to improve development efficiency, code quality ...

AI-Pilled BackEnd Developers and... err, cats.

Hiring Organisation
Mongoose Gray
Location
London Area, United Kingdom
There are 2 versions of this ad. Below is the anodyne version. Bonus points if you can find the more analeptic version. And provide proof of your quest. Good luck! The Back-End Developer will ...

Application Support Analyst - C# / SQL

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
tables and datasets Support releases, deployments and production stability Participate in on-call/occasional weekend support Skills & Experience Strong application production support experience C#, ASP.NET, .NET experience Strong Oracle, PL/SQL and SQL skills Experience working with complex, data heavy systems Good communication and problem-solving skills ...

Software Engineer

Hiring Organisation
The Emerald Group Ltd, Search and Selection
Location
London Area, United Kingdom
analysis. Hybrid role based in London (2 days per week in office) You will work in a team of 15, collaborating with C# developers and actuarial data scientists to deliver scalable features. The role Technical Challenge: Take ownership of performance bottlenecks involving 4GB+ datasets. Cloud Infrastructure: Utilize Azure PaaS tools … including Functions, Batch, Blob/Table Storage, and CosmosDB. Integration: Work on the integration and restructuring of Python and C# codebases to improve cohesion. Standards: Apply software engineering best practices including OOP, unit testing, and CI/CD. To be successful in this role, you must demonstrate specific experience ...

Contract C# Software Engineer

Hiring Organisation
Enterprise Recruitment Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Contract C# Software Engineer Near Wimbledon 6-month contract Software Engineer role developing C# Windows applications that interface with hardware. This role is inside IR35 and requires on-site work 3 days per week (full time for the first few weeks). C# Software Engineer skills required - Good analytical skills … large projects. Experience of multi-threaded and distributed applications, preferably with an understanding network of protocols. Strong Experience in developing Windows desktop applications in C# Interfacing with hardware/physical products .NET environment, Windows Forms, TCP/IP & UDP protocols Please apply or call for more information. ...

Contract C# Software Engineer

Hiring Organisation
Enterprise Recruitment Ltd
Location
Wimbledon, Malden, Greater London, United Kingdom
Employment Type
Contract
Contract C# Software Engineer Near Wimbledon 6-month contract Software Engineer role developing C# Windows applications that interface with hardware. This role is inside IR35 and requires on-site work 3 days per week (full time for the first few weeks). C# Software Engineer skills required - Good analytical skills … large projects. Experience of multi-threaded and distributed applications, preferably with an understanding network of protocols. Strong Experience in developing Windows desktop applications in C# Interfacing with hardware/physical products .NET environment, Windows Forms, TCP/IP & UDP protocols Please apply or call for more information. ...

Front Office C# Developer - Commodities Derivatives

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£700 - £750 per day
Front Office C# Developer - Commodities Derivatives Day Rate: Up to £750/day (Umbrella) Duration: 6 months initially Location: Marylebone - London Working Arrangement: Hybrid - 3 days per week onsite We're looking for a Front Office C# Developer to join a London-based leading Global Markets business team supporting … Ensure platform stability through robust testing and release control. Follow team standards for code review, deployment and architectural governance. Essential Strong commercial experience with C# Solid SQL Server experience Background working on complex, business critical platforms Experience with commodities and/or derivatives products Organised, delivery-focused, and comfortable working ...

Front Office C# Developer - Commodities Derivatives

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
Front Office C# Developer - Commodities Derivatives Day Rate: Up to £750/day (Umbrella) Duration: 6 months initially Location: Marylebone - London Working Arrangement: Hybrid - 3 days per week onsite We're looking for a Front Office C# Developer to join a London-based leading Global Markets business team supporting … Ensure platform stability through robust testing and release control. Follow team standards for code review, deployment and architectural governance. Essential Strong commercial experience with C# Solid SQL Server experience Background working on complex, business critical platforms Experience with commodities and/or derivatives products Organised, delivery-focused, and comfortable working ...

Senior Software Engineer C#

Hiring Organisation
Platform Recruitment Limited
Location
Royston, Hertfordshire, UK
Employment Type
Full-time
Description Job Title: C#/.NET Software Engineer Location:South CambridgeshireSalary:Up to £70,000Working Pattern: Hybrid2 days in office This is a brilliant opportunity for aC#/.NET engineer to join a fast-growingtechnology company whose software is used by scientists and engineers across the world. ...

Lead Backend Software Engineer C# .Net Azure SaaS

Hiring Organisation
Client Server
Location
Reigate, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Lead Backend Software Engineer/Developer (C# .Net Azure SaaS) Reigate/WFH to £100k Are you a backend focussed C# technologist with an indepth knowledge of Azure? You could be progressing your career in a senior, hands on role at a global InsurTech business that is producing game changing ...

Lead Backend Software Engineer C# .Net Azure SaaS

Hiring Organisation
Client Server
Location
Reigate, Surrey, UK
Employment Type
Full-time
Lead Backend Software Engineer/Developer (C# .Net Azure SaaS) Reigate/WFH to £100k Are you a backend focussed C# technologist with an indepth knowledge of Azure? You could be progressing your career in a senior, hands on role at a global InsurTech business that is producing game changing ...

Lead Backend Software Engineer C# .Net Azure SaaS

Hiring Organisation
Client Server
Location
Reigate, Surrey, UK
Employment Type
Full-time
Description Lead Backend Software Engineer/Developer (C# .Net Azure SaaS) Reigate/WFH to £100k Are you a backend focussed C# technologist with an indepth knowledge of Azure? You could be progressing your career in a senior, hands on role at a global InsurTech business that is producing game ...

C# Software Engineer

Hiring Organisation
Technical Futures Ltd
Location
Waterbeach, Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Degree qualified Software Engineer with strong experience in C#, using WPF/WinUI-3 and MVVM methodologies will support the new NPI team of a thriving Technology Company. You’ll have proven experience of developing software tools for production test and process automation as well as having some experience … working with embedded hardware-integrated systems. This award-winning company, enjoying sustained growth, seeks a commercially experienced Software Engineer who can bring solid C# skills and ideally some experience of supporting NPI from prototype through to volume manufacture and knowledge of manufacturing test systems. Key Requirements include: Software Engineering related ...

Backend Software Engineer C# .Net - FinTech

Hiring Organisation
Client Server
Location
Newcastle Upon Tyne, Tyne And Wear, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Backend Software Engineer/Developer (C# .Net Core) Newcastle onsite to £130k+ Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You could be joining a FinTech scale ...

Software Engineer (C# .Net, STEM Degree, Applied Engineering)

Hiring Organisation
Hays
Location
Oxford, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
Software Engineer (C# .Net & Applied Engineering) Oxford, 3-5 days per week in office. £45000 - £70000 + Package. - Must have a Computing/STEM Degree (2:1 or higher). - Can work in their Oxford head office minimum 3 days a week. Your new company You'll be joining ...

Senior C#. Net Developer (Banking)

Hiring Organisation
LMA Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
client is a tier 1 investment bank who are looking for a C# .Net developer. Tasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users … preparing documents. Along with the application development, this role will also include supporting the existing C# and .NET applications. General IT Support to maintain environments where applications are running will be also essential. Responsibilities: Develop and maintain applications that integrate Fixed Income and Repo trades with downstream back office, settlement ...

Senior Developer FX Options Risk

Hiring Organisation
Reed
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£900 - £925 per day, Inc benefits
Trading, Quant, and Technology colleagues across London, Hong Kong, and New York, contributing to a modern technology stack that includes TypeScript/React UI, C# services, PostgreSQL, and pricing services integrating with quant libraries. Required Skills & Qualifications: Strong experience in C# and modern backend development. Solid understanding of TypeScript … cross-time-zone collaboration. Day-to-day of the role: React/TypeScript UI (20%): Real-time risk visualisation, scenario tools, trader workflows. C# Backend Services (30%): Pricing requests, risk aggregation, workflow orchestration. PostgreSQL (20%): Schema design, performance tuning, data modelling. Pricing Services/Quant Integration (30%): Interfacing with quant ...

Software Development Lead

Hiring Organisation
REC SOLUTIONS LIMITED
Location
Guildford, Surrey, South East, United Kingdom
Employment Type
Permanent
Software Development Lead (C#,C++, SQL, .NET, Trading, FinTech, Financial Technology, financial Services) An exciting opportunity has arisen for a Software Development Lead to joinmy clientsDevelopment department, Ideally we seek candidates who have experience within FinTech (financial technology) and Trading. This is a senior role reporting directly … client has developed a number of industry-first products to help improve the capabilities of retail brokers and crypto providers across the globe. Benefits (C#,C++, SQL, .NET, Trading, FinTech, Financial Technology, financial Services) 25 days basic annual leave, increasing with length of service Paid days off on your birthday ...

Head of Software Development

Hiring Organisation
REC SOLUTIONS LIMITED
Location
Guildford, Surrey, South East, United Kingdom
Employment Type
Permanent
Head of Software Development (C#,C++, SQL, .NET, Trading, FinTech, Financial Technology, financial Services) An exciting opportunity has arisen for a Head Of Software Development to join my clients Development department, Ideally we seek candidates who have experience within FinTech (financial technology) and Trading. This is a senior role reporting … client has developed a number of industry-first products to help improve the capabilities of retail brokers and crypto providers across the globe. Benefits (C#,C++, SQL, .NET, Trading, FinTech, Financial Technology, financial Services) 25 days basic annual leave, increasing with length of service Paid days off on your birthday ...

Senior Software Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Wellington, Somerset, South West, United Kingdom
Employment Type
Permanent
Salary
£60,000
SoftwareEngineer to join a growing engineering team delivering software solutions used in industrial environments. You will develop and maintain desktop and web applications using C#, and WPF, contributing to both new development and ongoing system improvements. The role involves close collaboration with multidisciplinary teams and input into architectural decisions. … development, architectural input, and close collaboration with multidisciplinary engineering teams. Key responsiblities Design, develop, test, and maintain desktop and web applications Work with C#, WPF, and modern JavaScript frameworks Support and enhance legacy systems while helping drive modernisation Contribute to architectural decisions and system design discussions Requirements Strong experience ...

Desktop Software Engineer

Hiring Organisation
Station Group International Limited
Location
Royston, Hertfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
used day-to-day by scientists rather than internal business tools. What youll be working on Designing and building next-generation desktop applications in C#/.NET Developing software that interfaces with laboratory instruments and automation systems Creating tools that support scientific workflows and chemical processes Contributing to architecture … product teams and domain specialists This is a greenfield environment, with a strong focus on building new capability rather than maintaining legacy systems. Tech C#/.NET WPF/WinUI (desktop-first) SQL/data handling System integration with real-world hardware Nice to have (not essential): Linux/C++ ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
Royston, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £70000/annum
role was written for you. The Role You will play a key role across the full product lifecycle, developing and maintaining software platforms in C#, Python, and JavaScript for world-class gas detection instruments. You'll be writing the software that talks directly to hardware via UART … floor, and working closely with a talented team of electronic, embedded, and mechanical engineers. Requirements Engineering or electronics background Strong software development skills in C#, Python and/or JavaScript Hands-on experience with communication protocols such as UART, SPI, I2C, Modbus or CAN Comfortable reading schematics and using electronics ...

Principle and Senior Backend Software Engineer (.NET)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
high-integrity industries including Fire, Security, Telecare, Retail, Water, and National Infrastructure. The Role You will: Build and maintain backend systems using .NET/C# Design clean, scalable, maintainable architectures Contribute to high automated test coverage across all services Translate business requirements into secure, performant backend solutions Collaborate closely with … front‐end, QA, product, and platform teams Solve complex technical challenges with elegant, thoughtful solutions Our Technical Environment Backend: .NET/C# Automated Testing: NUnit Solution Testing: Playwright Strong focus on: Reliability and performance Clean, maintainable code High‐level automated test coverage Scalable, production‐ready services Our Culture ...