776 to 800 of 953 C# Jobs in the UK

platform. The system is deployed across multiple Linux servers and managed using DevOps pipelines and AWX (Ansible playbooks) . The backend is written in C# using gRPC services exposed via a Web API gateway , backed by a MySQL database . The front end is built with Vite and React . … code reviews and collaborate with peers to ensure quality and maintainability. Communicate effectively with technical and non-technical stakeholders. Key Requirements Proven experience with C# , .NET Core , and Entity Framework . Experience with React (preferably with Vite ), building modern UIs. Good understanding of gRPC , REST APIs, and microservice architectures. Proficiency ...

into production products and can bring proven patterns into a growing team. What Youll Do Design and build AI-powered product features within a C#/.NET ecosystem Integrate commercial AI APIs into production systems with a focus on reliability, scalability, and cost control Establish and promote best practices … with product and engineering teams to deliver user-facing AI capabilities Must Have 7+ years of commercial software engineering experience 5+ years working with C#/.NET (Core) Proven experience designing and shipping AI integrations in production Strong experience integrating paid AI APIs (e.g. OpenAI, Anthropic, Bedrock) Demonstrated ability ...

hybrid role working mostly from home with regular monthly office days in Abingdon. Key Tasks and Responsibilities: Own and evolve the Preserve365 .NET/C# test automation framework, including coding standards and best practices Support and develop automation engineers, acting as a subject-matter expert across QA and Engineering Design … with Agile development practices including Agile testing Familiarity with CI pipelines, Azure-based platforms, and Git-based source control Strong experience in .NET/C#-based test automation, including frameworks such as Playwright Good understanding of BDD/TDD and tools such as Cucumber and Gherkin Adept with API testing ...

queries, stored procedures, and data processing logic to handle high-volume structured data Design and implement backend services using modern programming languages (Python or C#) Support and enhance existing legacy platforms, identifying opportunities for iterative modernisation Improve query performance through indexing strategies, query optimisation, and data processing efficiency Enhance platform … Server skills, including complex queries, stored procedures, indexing, and performance tuning Experience working with large relational datasets Solid backend development experience in Python or C# Experience working in AWS environments Experience with complex enterprise or legacy systems Strong analytical and problem-solving abilities Ability to operate autonomously with minimal onboarding ...

specifications and user stories Designing and building solutions across Dynamics 365 and the Power Platform , including Power Apps and Power Automate Writing and maintaining C# plugins and JavaScript where custom logic is required Producing clear technical designs and documentation that others can confidently build on Collaborating with internal and external … security roles Strong Power Automate experience, including integrations with external systems Experience building Power Apps (Canvas and Model‑Driven) Ability to read and write C# and JavaScript in a Dynamics 365 context Comfortable working directly with business stakeholders Able to explain technical concepts clearly to non‑technical audiences ...

Senior Software Engineer (.NET/C#) | Greenfield Systems Rebuild | Remote (UK) | £80,000-£100,000 This is a hands-on senior engineering role with real technical authority. You will be the lead engineer and technical decision-maker on a greenfield rebuild of a mission-critical system, working within a small … planning. WHAT WE'RE LOOKING FOR Must-have 5+ years in senior software engineering or technical lead roles, with strong hands-on .NET/C# delivery. Demonstrable experience leading architecture decisions on production-grade systems, not just contributing to them. REST API design and integration experience at scale, including defining ...

this is a fantastic opportunity. You'll lead the design and delivery of high-quality software built on Azure, working with technologies such as C#, Azure Functions, Logic Apps, Service Bus, API Management, and Infrastructure as Code. You'll champion engineering best practice, support architectural decisions, and help drive continuous … role based at our Hoddesdon office. About you Proven experience as a Senior or Lead Developer, with strong hands-on expertise in Azure Functions (C#), event-driven design, and serverless architectures Technical capability across: Designing, developing, and deploying scalable, maintainable software solutions Building Azure Logic Apps, workflows, connectors, and enterprise ...

Required for a full-time, six-month (potentially long-term) contract, a Software Engineer experienced in digital radio communications. Rol e Design, develop, and maintain radio software solutions. Work with modern protocols and technologies (eg ...

Terraform Infrastructure Engineer/IaC SME - Banking Client - London, Paris, Brussels or Amsterdam Rate: Flexible Rate Hybrid Working: 8 days onsite per month - the rest is remote Duration: 1 year freelance We are seeking a ...

Senior .NET Developer Global Tech Company | Agile Delivery Teams | Hands-On | UK-Based Millions of customers. One proprietary platform. Infinite possibilities. This global technology business has just completed a massive migration to their own platform ...

with pragmatic, commercial solutions. You’ll have direct interaction with PMs, quants, and the CTO, contributing across design, architecture, and production support. Tech Environment C# and .NET are central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other … essential, but interest in Fixed Income/Rates is beneficial Requirements Strong academic background in Computer Science or related field Excellent programming ability in C# and .NET Experience with large or complex data sets 1–5 years’ experience in a software engineering role Interest in finance; exposure to fixed income ...

will develop and consolidate systems, write software, guide a team of developers, and take ownership of several critical platforms. This includes an in‐house C# PnL and Risk system that performs real‐time portfolio valuation, alongside other components that will be integrated into a cohesive, modernised core platform. You will … date) accounting reconciliations Particular interest in candidates with Fixed Income and Rates experience Technical Skills Strong computer science fundamentals Hands‐on development experience in: C# and .NET (essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such ...

.NET Developer, C#, WPF - Asset Management - Manchester (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Founded in 1930, our client is a leading investment manager with offices in Europe, Asia and North America. They manage over £120 billion … across all asset classes and employ over 2000 people around the world. Working in tandem with Microsoft they are developing revolutionary .NET/C# software applications that have attracted much attention in the trade press. We are seeking two .NET Developer to work on these exciting Greenfield enterprise level .NET ...

.NET Developer, C#, WPF - Asset Management - London (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Founded in 1930, our client is a leading investment manager with offices in Europe, Asia and North America. They manage over £120 billion … across all asset classes and employ over 2000 people around the world. Working in tandem with Microsoft they are developing revolutionary .NET/C# software applications that have attracted much attention in the trade press. We are seeking two .NET Developer to work on these exciting Greenfield enterprise level .NET ...

.NET Developer, C#, WPF - Mobile Telecommunications - London (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Established in the early 1990s and listed on the London Stock Exchange our client is an instantly recognizable brand within the mobile telecommunications … launch of several new products. As such they are looking to recruit 6 .NET Developer to help design and develop the .NET/C# software applications that will be the backbone of this exciting new generation of products and services. The ideal .NET Developer candidates will have a skill ...

.NET Developer, C#, WPF - Mobile Telecommunications - Manchester (Tech stack: .NET Developer, .NET 10.0, C# 14, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Established in the early 1990s and listed on the London Stock Exchange our client is an instantly recognizable brand within the mobile telecommunications … launch of several new products. As such they are looking to recruit 6 .NET Developer to help design and develop the .NET/C# software applications that will be the backbone of this exciting new generation of products and services. The ideal .NET Developer candidates will have a skill ...

World Class Defence Organisation is currently looking to recruit 5x C#/C++ Software Engineer subcontractors on an initial 12 month contract. Desktop C# is the expertise the department are looking for; with some experience with C++ but doesnt need to be overly extensive. Job Title: C#/C++ Software … week onsite Contract: 37 Hours per week Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) C#/C++ Software Engineer Job Description: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed ...

World Class Defence Organisation is currently looking to recruit 5x C#/C++ Software Engineer subcontractors on an initial 12 month contract. Desktop C# is the expertise the department are looking for; with some experience with C++ but doesnt need to be overly extensive. Job Title: C#/C++ Software … week onsite Contract: 37 Hours per week Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) C#/C++ Software Engineer Job Description: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed ...

Lead C# Engineer - Agentic Workflows & Native AI Engineering, .Net 8/9, AWS (Lambda, SQS) OUTSIDE IR35 Reporting to the Director of Engineering, this is a genuinely outstanding contract opportunity for a rockstar Senior C# Engineer to lead the development of a greenfield SaaS product . Were looking … twinned with experience of AI-Native Engineering and Agentic Workflow . Skills Were Looking For: SeniorStaff-level backend engineer with deep, current expertise in C# and .NET Core 8/9 , capable of architecting and leading the design of distributed REST API microservices at scale. Authority in AWS serverless architecture ...

APPLICATION DEVELOPER – C#/F#/ASP.Net MVC/SQL/JavaScript C#/F#/ASP.Net MVC/SQL/JavaScript The company Long standing and respected Software House with a varied client base. The role Web Application Developer is required to design, develop, test and support (primarily … will analyse requirements, specify systems, features and processes as well as develop new features for existing systems or develop entirely new systems (usually in C# but possibly F#). Additionally you will write unit/integration/scenario tests for code (typically test-driven development) and reports and queries against ...

Senior C#/.NET Developer - Financial Technology (Risk & Financing Platforms) Pay Rate: £600-£650 (Inside IR35 via umbrella) Location: London - 3/4 days per week (with flexibility) Duration: 6 Months (due to be extended) A leading global financial institution is expanding its engineering group and is looking for experienced … C#/click apply for full job details ...

Software Engineer Tech Stack: C#, .NET, Python, AI Development, SQL, Azure London - Onsite Salary Range: £70,000 - £90,000 Harrington Starr has partnered with a boutique Investment Bank, with decades of experience and exceptional performance. They are currently seeking to hire a Polyglot Engineer possessing strong experience developing front office … applications and systems, written in C# and Python. If you have a deep interest working with modern technologies, building reliable business applications this could be the role for you. Responsibilities: Design and develop new front office application utilising C#, .NET, Python Working on internal systems to maintain quality and standards ...

Senior C# Engineer City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting-edge technology, and play a key part … culture where innovation and creativity are encouraged Great work-life balance supported by wellness perks, healthcare, and team socials Key Requirements Strong background in C# and the .NET platform (working with the latest versions) Database knowledge (SQL Server, Oracle, or equivalent) Degree in Computer Science or related subject Fluent ...

roles with a junior and a mid level both being required. You must have at least 1 years experience developing applications in C# using .NET and/or .NET Framework. Ideally looking for 2 - 5 years experience. You will work across systems built using C#, .NET, relational databases, and modern … queries to support features, troubleshoot issues, and maintain reliable system behaviour. Skills & Experience Required * Between 1 - 5 years' commercial experience developing applications in C# using .NET and/or .NET Framework. * Experience working with relational databases, including SQL Server, with confidence writing queries, understanding data structures, and troubleshooting data issues. ...

Full Time Job Description: Python is the key skill needed + SQL + AWS experience + Terraform. e.g. Building investment analysis platforms using Python. C#/.NET is still desirable but not as critical (e.g. more for changes to microservices than new build in C#, Windows migration work). Investment ...