successfully. Qualifications and Experience: Small team environment with the expectation of mucking in with general IT issues ranging from user upgrades to faulty hardware when necessary. Knowledge of Java, C# and Asp.net advantageous This is an office based role offering a competitive salary and benefits. This role is not a Hybrid Role, or a role that can be based from More ❯
reading, south east england, united kingdom Hybrid / WFH Options
OCS Worldwide
successfully. Qualifications and Experience: Small team environment with the expectation of mucking in with general IT issues ranging from user upgrades to faulty hardware when necessary. Knowledge of Java, C# and Asp.net advantageous This is an office based role offering a competitive salary and benefits. This role is not a Hybrid Role, or a role that can be based from More ❯
slough, south east england, united kingdom Hybrid / WFH Options
RedCat Digital
C# Developer – Contract (Hybrid, London) Rate: £415 per day (Umbrella only) Location: London – Hybrid, minimum 3 days a week onsite near Canary Wharf Contract: Initial 6 months with extensions likely We’re looking for an experienced C# Developer to join a busy development team within a leading financial environment. The role involves designing, developing and supporting a range of business … platform. You’ll be working closely with database and infrastructure teams, supporting both new and existing systems in a fast-paced environment. Key Responsibilities: Develop and maintain applications using C# and the .NET Framework Support and enhance existing Windows and web-based systems Work with SQL Server and Oracle databases, writing efficient T-SQL and PL/SQL queries Follow … release procedures to ensure system stability Troubleshoot application, database and environment issues across multiple teams Provide occasional out-of-hours or weekend support when needed Skills and Experience: Strong C#/.NET development background Good understanding of object-oriented programming Experience with SQL Server or Oracle databases Familiarity with IIS and Windows application development Excellent communication and problem-solving skills More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Harrington Starr
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 … CI/CD pipelines. Work closely with business and technical teams to ensure accurate, compliant delivery. Participate in code reviews and continuous improvement initiatives. What you’ll need: Proven C# and .NET development expertise (Framework & .NET Core). Strong understanding of object-oriented programming, design principles, and best practices. Solid experience with SQL Server and Oracle databases. Experience in financial More ❯
Reading, Berkshire, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer, .NET 9, C# - Global Internet Icon - Reading (Tech stack: .NET Developer, .NET 9, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client has long been a classic internet icon; today it has evolved into an integrated and diversified modern media company. We are seeking .NET Developer to work on one of the … most ambitious .NET/C# projects to take place since the birth of the World Wide Web. .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C#, Azure SQL and Agile. Full training will be provided into: .NET 9, Blazor, EF Core, Azure, JavaScript, HTML5, CSS3, Agile, TDD, BDD, Azure SQL and MongoDB. More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
Backend Software Engineer/Developer (C# .Net Core Cloud CQRS) London/WFH to £85k 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 … 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 … scratch. 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 ❯
see another 10 countries added to this list as well as their workforce increasing by 100% in size. Underpinning this success is their hip and cutting-edge .NET/C# technology platform. We are seeking several .NET Developer to work on the development of revolutionary new features that will draw users to their web site for longer periods of time. … .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and SQL Server. We are keen to hear from .NET Developer candidates with a strong understanding object orientated (OO) development and the full software development life cycle. This is a rare opportunity to join a truly exciting global brand. Our client offers over More ❯
Newbury, Berkshire, England, United Kingdom Hybrid / WFH Options
Noir
see another 10 countries added to this list as well as their workforce increasing by 100% in size. Underpinning this success is their hip and cutting-edge .NET/C# technology platform. We are seeking several .NET Developer to work on the development of revolutionary new features that will draw users to their web site for longer periods of time. … .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and SQL Server. We are keen to hear from .NET Developer candidates with a strong understanding object orientated (OO) development and the full software development life cycle. This is a rare opportunity to join a truly exciting global brand. Our client offers over More ❯
play a key role in architecting and developing scalable, high-performance web applications that bring complex data to life. Working across both frontend (React, TypeScript) and backend (.NET Core, C#) technologies, you’ll collaborate with product, design, and data science teams to create seamless, intelligent solutions that define the future of shipping analytics. This is a hands-on engineering role … What You’ll Bring 5+ years of experience building large-scale, production-grade web applications. Strong proficiency with React, TypeScript/JavaScript, HTML, and CSS . Proven experience with C#, .NET Core , and SQL-based databases . Understanding of Design Patterns and SOLID principles . Experience designing and consuming RESTful APIs . Familiarity with Azure or other cloud platforms and More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Computappoint
C# Developer (.Net) Location: Canary Wharf Hybrid: 3 days onsite per week Rate: £415 per day (Inside IR35) Duration: 6 months initial contract with potential extension up to 2 years with a Permanent conversion option Positions Available: 13 positions Industry: Financial services Interview Process: 2 rounds of interview - Face-to-face interview only, and Technical assessment - Home assignment to be … behalf of our client, a leading financial services company, within their Business Intelligence development team. The role focuses on developing and supporting business applications using the MS .NET platform (C#, Visual Studio) and working with both Oracle and SQL Server databases. You’ll be joining a collaborative team that delivers key business solutions across various environments. Key Responsibilities: Design, develop … and maintain business applications using Visual C# .NET with Oracle and SQL Server databases Provide ongoing support for existing C# and .NET applications, including troubleshooting and implementing solutions Write and optimise T-SQL and PL/SQL scripts for data analysis and reporting requirements Collaborate with Database Administrators, Technical Support, and Infrastructure teams across London and New York offices Follow More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Noir
.NET Developer - Global Sports Company – London (Tech stack: .NET Developer, .NET 9, C#, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a global sports brand that operates in over 115 countries worldwide. They are the biggest sports company in Europe and the second largest on the planet! Over the past 30 years … resource will be at your disposal to help you achieve this. We are looking for .NET Developer that have a strong background in .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Training will be provided into: .NET 9, Blazor, EF Core, Azure, JavaScript, HTML5, CSS3, Agile, TDD, BDD, Azure SQL and MongoDB. All positions come with the following More ❯
a permanent basis in London. There are multiple roles across risk and FX within this company and the ideal candidate will come from a financial services company. Key Skills: C# OOP Up to £130K on the base plus market leading package More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Logik Source
and also develop code and to test it. The successful applicant will have a good relevant Degree or PhD with proficiency in Algorithm Software Development utilising Python, C++ or C#, along with: • Experience in Metaheuristic optimisation • Experience with AI/ML Techniques • Exposure to cloud-based data pipelines for large-scale test data processing for Data Centres. The successful candidate More ❯
where you will work directly alongside the founding team to help shape the core technology and company culture. About you: 3+ years of Software Development experience in Python, Java, C#, C++ Experience working on an end-to-end development cycle Proven ability to build something from the ground up/experience in shipping features very quickly Understanding of complex design More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Langham Recruitment
of testing, and analysis of data for improvement Collaborate with cross-functional teams of hardware, software, embedded and electronic engineers. Skills: Software scripting and Automation experience using Python, C++, C# Experience in generating and scripting algorithms for AI/ML applications, as well as Metaheuristic optimisation. Understanding of cloud-based environments and data pipelines. Degree in either Computer Science, Electrical More ❯
using BizTalk. Strong command on various BizTalk components like BRE and BAM and should have expertise in developing custom Schemas, Pipelines, Mapping, Orchestrations, Itineraries, Strong command on .Net/C# concepts and current trends in the industry including strong understanding of Object Oriented design methodologies and design patterns Excellent understanding of the entire Software Development Life Cycle including requirements elicitation More ❯
in terrain authoring, biome design, or environment art . Experience with UCG platforms (Roblox, UEFN) Interest in automation, optimization, and tool scalability for large environments. Scripting experience with Python, C#, or C++ for Unreal tool development. Based in or able to relocate to Guildford or London, UK (hybrid or on-site preferred). Why Join Us A unique opportunity to More ❯
Maidenhead, England, United Kingdom Hybrid / WFH Options
AVIRE
the user in mind - not just how it works in the lab, but how it works in the field, in real life environments. Build test tools in Python or C# that make your systems more robust, more reliable, more trustworthy. Work closely with our global teams, from our factory producing PCB/As in Czechia through to our technical support More ❯
reading, south east england, united kingdom Hybrid / WFH Options
AVIRE
the user in mind - not just how it works in the lab, but how it works in the field, in real life environments. Build test tools in Python or C# that make your systems more robust, more reliable, more trustworthy. Work closely with our global teams, from our factory producing PCB/As in Czechia through to our technical support More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Prism Digital
Senior Software Engineer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a Senior Software Engineer to help drive modernisation, set technical direction, and mentor squads as they scale. This is a senior, hands-on … and fit for the future. Expect to spend plenty of time coding, alongside leading migrations and leading/mentoring 4 engineers. You will have complete autonomy for all things C# .NET in the business, including decision making on strategy around the direction of the products, the projects, leading the team and liaising with external consultancies etc. What you’ll be … doing: Design and build complex apps with C# and .NET Core/Framework Lead migrations from Web Forms/ASMX to modern stacks (.NET Core, MVC, REST APIs) Contribute to the technical roadmap and influence best practices across squads Partner with QA, Product, and DevOps to deliver reliable features in agile sprints Implement and fine-tune CI/CD (TeamCity More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Areti Group | B Corp™
to-end web applications and APIs used by thousands across secure environments. Ship modern TypeScript apps with React (Vite/Material-UI) and backends in Node.js/Express (bonus: C#/.NET or Python/Django ). Design and document clean REST/JSON interfaces; test with Postman and automate regression suites. Own CI/CD pipelines and Docker -based … platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material-UI, HTML5, CSS Backend: Node.js, Express.js (nice-to-have: C#/.NET, Python/Django) APIs & Data: REST/JSON, SQL, PostgreSQL/Postgres , databases DevOps: CI/CD, Docker , containerisation, Ubuntu/Linux, AWS , Serverless, CDK/CDKTF , Ansible … . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery in defence, aerospace, or government . C#/.NET , Python/Django , Material-UI , Vite , PostgreSQL tuning. GenAI/LLM experience (e.g., AWS Bedrock , prompts/guardrails, retrieval). Integrations with hardware/peripherals (kiosks, scanners, IoT More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quantifi
impact, we'd love to hear from you. What you’ll do Provide technical leadership and direction across multiple projects. Design, architect, and implement high-performance, scalable solutions in C#/.NET. Ensure architectural consistency and modern engineering best practices. Collaborate cross-functionally with Sales, Product, Research, QA, and Professional Services. Mentor and coach developers, continuously raising the technical bar. … and QA engineers. What you’ll bring Bachelor’s degree in Computer Science or related STEM field (or equivalent experience). 10+ years of hands-on experience developing with C#/.NET in production environments. Strong command of SQL and relational database design. Deep understanding of software engineering principles and architecture patterns. Excellent written and verbal communication skills. Experience mentoring More ❯
of old and new our core systems range from a WinForms app to an in-house distributed data processing pipeline. Some of the core technologies that we utilise are: C# .Net Web Services SQL Server (Including T-SQL) Angular (with Typescript) RabbitMQ/Kafka Various Azure Features (App Services, VMs, Config etc...) Git Snowflake Nuget (Producing and Consuming)Azure DevOps … developments is maintained. BACKGROUND/EXPERIENCE Knowledge of the design, development and implementation of software solutions. Full stack development experience in particular the Microsoft stack ,including .NET languages e.g. C# and a strong understanding of OO principles. Knowledge of relational database systems and SQL. Experience working with APIs. COMPETENCIES AND PERSONAL SKILLS Questioning, analytic skills with attention to detail. Solution More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Wine Owners
Job Title: Full Stack Developer – Wine Hub Employment Type: Full-Time Location: London Working Model: Hybrid Reports To: Head of Engineering Company Overview: Wine Owners is a rapidly growing B2B SaaS scale-up that offers innovative software solutions designed for More ❯
across complex systems. You’ll play a key role in ensuring scalability, stability, and reliability of business-critical application Key requirements: Proven experience in UI automation using Selenium with C#/.NET. Strong background in load and performance testing with JMeter. Skilled in designing, executing, and analyzing performance test cases. Proficient in Zephyr for Jira for test management and defect More ❯