26 to 50 of 237 C# Jobs in London

Applications Developer

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Systems, or related field. Minimum 3 years' experience in software development, with strong skills in SharePoint, SQL Server, and the .NET environment. Proficiency in C#, ASP.NET MVC/Core, and web API development. Experience with front-end frameworks and modern development practices. Strong problem-solving skills and ability to manage ...

Senior Software Engineer

Hiring Organisation
OTA Recruitment Limited
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Experience collaborating with Data Scientists or Data Engineers. Comfort with mathematical concepts such as probability, statistics and matrix operations. Additional notes While experience with C# is preferred, candidates with a strong Java background and relevant industry exposure - or a clear personal interest in betting, gaming or US sports - will also ...

Senior Python Developer

Hiring Organisation
Mastek
Location
City of London, London, United Kingdom
Develop and maintain .NET code for back-end services, APIs, and integrations with other systems. Utilise relevant .NET frameworks and technologies (e.g., ASP.NET Core, C#, Entity Framework). Write unit and integration tests to ensure code quality and reliability. Reverse Engineering: Analyse and understand existing codebases (potentially Python) to identify ...

Pensions & Investment Technology Graduate Programme - September 2026

Hiring Organisation
Lane Clark and Peacock LLP
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
graduate training programme and on-the-job learning with a team of experienced developers (no prior coding experience necessary). Coding is primarily in C#, with exposure to SQL and front-end technologies. Develop software in an agile way, making use of Azure DevOps Work on our key internal models ...

Support Lead / L3 Lead Engineer

Hiring Organisation
Purview Consultancy Services Ltd
Location
London, United Kingdom
Employment Type
Contract
person dependencies Mentor offshore engineer s and ensure engineer ing standards Identify technical debt and automation opportunities Required Skills Strong .NET/ASP.NET/C#, React SQL Server performance tuning Azure (Functions, Service Bus, cloud ops) Legacy modernization exposure Incident command & production troubleshooting DevOps/CI-CD understanding Experience 1012+ ...

Full Stack NextJS Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
frontend performance API development experience (REST or GraphQL) Cloud exposure (AWS preferred) + Docker Strong fundamentals (HTTP, DNS, etc.) Bonus points for: Go or C# backend experience Microservices/DevOps/CI/CD exposure Terraform/infrastructure as code Auth systems (OAuth, JWT, SSO) If you’re interested ...

Senior Software/DevOps Engineer - Highly Prestigious Hedge Fund - London

Hiring Organisation
Mondrian Alpha
Location
London Area, United Kingdom
similar), containerisation (Docker/Kubernetes), and CI/CD tooling (TeamCity or equivalent). You should have solid scripting or development experience (Python, PowerShell, C# or Java), alongside exposure to monitoring and observability tools (e.g. ELK, Prometheus, Grafana). Experience across cloud environments (Azure/AWS), as well as Windows ...

Quantitative Developer (Global Hedge Fund)

Hiring Organisation
Venture Search
Location
City of London, London, United Kingdom
risk, and operations teams to support live trading environments Ensure best practices in software development, testing, and documentation Required Qualifications Strong programming skills in C#, Python and/or C++ (Java or other languages a plus) Solid understanding of data structures, algorithms, and software engineering principles Experience working with large ...

Senior Software Engineer – Systems Improvement & Scale

Hiring Organisation
Car Planet
Location
Enfield, England, United Kingdom
Strong refactoring and system-improvement skills ✔️ Comfortable in fast-moving, imperfect environments ✔️ Able to work autonomously with strong judgement on priorities & risk Highly Desirable ⭐ C#/.NET experience ⭐ Startup or scale-up background ⭐ Technical leadership experience ⭐ Experience across multiple internal products 🔹 The Package 💰 Salary: £40,000 – £60,000 (DOE) 📝 Open ...

Solace Administrator

Hiring Organisation
BGC Group
Location
London Area, United Kingdom
audits and vulnerability remediation. Maintain accurate documentation, including topology diagrams, runbooks, and configuration baselines. Support proprietary messaging APIs using C++, Java, Python, and C# programming languages. Provide support for proprietary cache and gateways that integrate applications with the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
daily stand-up, team retros, sprint reviews, story-mapping, backlog refinement) helping the entire delivery team be the best that they can. Essential Skills: C# .NET Core, REST API Design and Development, API Management Document or No-SQL database solutions (particularly Elasticsearch) Messaging and microservices based architecture (Azure Service ...

Web Developer - C#

Hiring Organisation
CV Screen Ltd
Location
Erith, Kent, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
Developer – C# Kent - Hybrid £50k + Benefits Introduction CV Screen is recruiting for a talented Web Developer with strong C# skills to join a well-established and growing technology-led organisation based in Erith, Kent. This hybrid role offers a salary of £50,000 plus an excellent benefits package. … fantastic opportunity to make a real impact within a forward-thinking business. Duties & Responsibilities Develop and enhance back-end applications and APIs using C# and .NET Create responsive, user-friendly front-end interfaces with a strong focus on UI/UX Contribute to sprint planning, task tracking and agile delivery ...

Senior C# Developer C# .Net - Sports Trading

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Senior C# Developer/Backend Software Engineer (C# .Net) London onsite to £150k Are you an experienced backend focussed C# Developer? You could be progressing your career in a senior, hands-on role at a global Sports Trading business, earning substantial bonuses. As a Senior C# Developer within the trading ...

Senior UI React / Java developer for Triforce Credit Project

Hiring Organisation
cer Financial Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£750 - £1,000 per day
desirable to understand wider asset class - FX etc · JavaScript/TypeScript 10+ yrs, React essential, Redux desirable · Java backend 5+ yrs (Java preferred over C#) · Greenfield project experience · Strong experience with AG Grid ...

Sharepoint Developer & Administrator

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# and .NET Framework for backend and integration development. - Hands-on experience administering SharePoint on-prem environments, including patching, upgrades, performance tuning, and troubleshooting. Sharepoint Developer ...

Software Engineering Manager

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
payments,banking,orotherregulatedindustries(Nicetohave) Strongunderstandingofsystemdesign,APIs,microservices,andevent-drivenarchitecture. Experienceoperatingwithinmoderncloudenvironments(AWS,Azure,orGCP). Demonstratedabilitytoleadwithoutmicromanaginghands-offbuttechnicallycredible. TechnicalEnvironment Ourplatformisbuiltusingmodern,cloud-nativetechnologies,including: Technologies .NET/C#(coreplatformservices) React RESTfulAPIs&event-drivenservices Data&Messaging PostgreSQL Redis Kafka Cloud&Infrastructure MicrosoftAzureand/orAWS Kubernetes Terraform/InfrastructureasCode CI/CDpipelines(AzureDevOps/GitHubActions ...

Senior UI React / Java developer

Hiring Organisation
Michael Page Technology
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£750 - £1,000 per day
Core Skills 10+ years' experience with JavaScript/TypeScript Expert-level React; Redux desirable Strong AG Grid experience (essential) 5+ years' Java (preferred over C#) Proven track record delivering greenfield platforms Trading Domain Expertise Significant front-office experience within investment banking Strong understanding of end-to-end trading lifecycle Solid ...

SDET

Hiring Organisation
WeDoTech
Location
Croydon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum
technology stack. Requirements - 3 to 5+ years experience in a QA Engineer or SDET role within Agile engineering teams - Strong automation experience using C# and .NET - Experience building, improving or maintaining automation frameworks - Experience working with REST APIs and tools such as RestSharp - Experience working with CI pipelines and Azure ...

Senior C++ Engineer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
solutions. Understanding of trading lifecycle, including order capture & execution, allocation workflow, settlement, and compliance requirements Must have strong technical skills in scripting, Python, PowerShell, C#, SQL or other programming languages Solid track record in application deployment best practices Proactive system monitoring and troubleshooting, owning reliability improvements and ensuring their successful ...

Data Bricks Product Owner, Microsoft Fabric Product Owner, Part Remote

Hiring Organisation
Carrington Recruitment Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
need someone who has come from a Data Bricks, Microsoft Fabric, Data-Engineering First background with a hardened skillset in Microsoft Stack Technologies (C# .NET Core, Fabric) who has then transitioned into Product Ownership. We need someone highly analytical who can understand large Data Sets, Data Bricks and is able ...

Data Bricks Product Owner, Microsoft Fabric Product Owner, Mainly Remote

Hiring Organisation
Carrington Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £130,000 per annum, Negotiable
need someone who has come from a Data Bricks, Microsoft Fabric, Data-Engineering First background with a hardened skillset in Microsoft Stack Technologies (C# .NET Core, Fabric) who has then transitioned into Product Ownership. We need someone highly analytical who can understand large Data Sets, Data Bricks and is able ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … expand their award winning .NET software development team. We are seeking .NET Developer candidates with experience of either web application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js ...

API Automation Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
Java library and framework: Lombok, Spring Boot Stub testing experience: yaml, wiremock or Mockito, SOAP API testing Programming languages experience in OOP: Java or C# tools used: Cucumber Gherkin, Postman (Bruno), Junit: CI/CD integration with Gitlab/Jenkins Git version control: Gitlab/GitHub experience in JIRA ...

Technical Project Manager

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £90,000 per annum
technical, engineering, or related discipline Several years' experience managing complex technical projects Strong understanding of software development and IT infrastructure Programming experience with C# and the .NET platform Database experience (SQL Server, Oracle, or similar) Strong organisational, communication, and prioritisation skills High attention to detail and a structured approach ...

Lead .Net Developer x 2

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£800 - £850/day Up to £850pd Umbrella
actively seeking multiple Senior .Net Developers to work on a long-term, business-critical data-orientated project. What you'll need to succeed : Extensive C# .Net Development experience ideally within financial services, on data-heavy projects. Extensive SQL server experience - Must Have. Solid experience in database modelling, performance tuning ...