23 of 23 C# Software Engineer Jobs in London

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 … weeks). C# Software Engineer skills required - Good analytical skills and experience of code and design review for 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 ...

C# Software Engineer | Front Office Trading | Investment Bank Contact email: othorne@vertuspartners.com Job ref: OT-071026_1791363117 Startdate: 1-3 Months C# Software Engineer | Front Office Trading Technology | Investment Bank The Role: A major financial services organisation is looking … into practical solutions Support the migration of legacy applications towards modern cloud-native architectures What You Bring: Strong software engineering capability across C# and .NET Experience working with relational databases such as Oracle, SQL Server or PostgreSQL Knowledge of API design and distributed application development Exposure ...

Contract Software Engineers C# & C++ (Linux) Near Wimbledon, London | 6 months | Inside IR35 Were hiring two separate contract engineers to work on hardware-integrated software projects: Contract C# Software Engineer (Windows) C#/.NET Windows desktop applications (Windows Forms …/IP, UDP Hardware/physical product interfacing On-site 3 days per week (initially full-time on-site) Contract C++ Linux Software Engineer (Embedded) Strong C++ on Linux Embedded software experience Networking (TCP/IP, UDP) Build systems (OpenEmbedded/BitBake desirable) Hybrid ...

Software Engineer – C#/Java Key Technologies: C# and or Java Developers needed. London Perm Role | 3 Days a week in the office. £55,000 - £65,000 Harrington Starr has partnered with a well-established Financial Consultancy to find a Full Stack Developer … hands‐on development role, supporting a range of internal systems across trading and business operations. Key Responsibilities: Develop and maintain software using C#, and or Java Integrate real‐time and historical data from third‐party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems ...

Senior Software Engineer LONDON (1 day per week; Fridays) Job role This is a challenging role that will see you be involved in enhancing and modernising a critical front office trading system as the primary objective. With your software development background … domain and enterprise levels , identifying transformational opportunities for the businesses and technology areas Skills required: Significant experience in software engineering in C# and .Net database design using Oracle, SQL Server or Postgres , and architecture. Experience of developing software within a DevOps and Agile framework. ...

Contract Software Engineers - C# & C++ (Linux) Near Wimbledon, London 6 months Inside IR35 We're hiring two separate contract engineers to work on hardware-integrated software projects: Contract C# Software Engineer (Windows) C#/.NET Windows desktop applications (Windows ...

Harrington Starr is seeking a Software … Engineer at associate level to join a hands-on development team in London. You\'ll build and maintain software using C# and/or Java, integrate real-time data from third-party APIs, and work within agile sprints to deliver secure, compliant solutions for trading ...

Redline Group in Uxbridge is seeking a Senior Software Engineer to develop robust C#/.NET applications and RESTful APIs for next‐gen instrumentation products. You will join a motivated engineering team and contribute to design, coding and debugging across multiple software languages. … ideal candidate has strong C#/.NET experience, VB, SQL and Visual Studio expertise, and a solid grasp of software development methodologies. This role offers hands‐on coding in a dynamic environment. #J-18808-Ljbffr ...

looking for a Senior Software Engineer to join our global team to be responsible for the quality, development, and execution of our software products. You will be part of a technology department that is comprised of a successful and multidisciplinary group of professionals located … related field 8+ years of experience in software development, with a focus on building scalable and reliable systems Extensive knowledge of DotNet C#, LINQ, MS SQL, Entity Framework and related technologies Capable to use version control software such as GIT Knowledge of SOLID principles Knowledge ...

building the first global data-driven last-mile network that has the potential to solve industry-wide problems. We're hiring a Senior Software Engineer who treats software as a craft, not a checklist. You'll join a small, high-trust team where ownership … Work outside strict role boundaries when needed, without feeding burnout culture Communicate technical decisions clearly and push back constructively when required Core technical skills C#/.NET 8+ , Entity Framework Core, async/await, MediatR/CQRS Strong understanding of distributed systems : consistency models, event-driven patterns, idempotency, race ...

Insightful Technology is seeking a mid-level Software Engineer to develop and maintain backend services for SOTERIATM solutions, focusing on C# development in a regulated environment. The role involves working across design, development, testing, and deployment to deliver scalable, secure features. You will collaborate with ...

Staff Software Engineer, Liquidity Management (C#/.NET) London, UK At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments … design Knowledge of observability: logging, metrics, tracing, and alerting strategies Experience with microservices deployment patterns and service mesh concepts Core Technologies: Deep expertise with C#/.NET Expert in relational databases (SQL Server ideally), including query optimization, indexing strategies, and data modeling Experience building and maintaining RESTful APIs ...

Description A Tier 1 Global Investment Bank are looking for a Software Engineer to join their eTrading Team to assist in building quality software so Traders are able to work as effiecently as possible. This role with involve a lot of cross collaboration with … eTrading preferred, if not FIxed Income or a similar Asset class experience would be essential. Knowledge of the .NET infrastructure Strong Experience with C# Azure Knowledge (Bicep, Networking, Service Bus, App Service, Functions, Cosmos DB) Soft Skills Being able to clear communicate to Traders in laymans Terms. Experience within ...

Description A Tier 1 Global Investment Bank are looking for a Software Engineer to join their eTrading Team to assist in building quality software so Traders are able to work as effiecently as possible. This role with involve a lot of cross collaboration with … eTrading preferred, if not FIxed Income or a similar Asset class experience would be essential. Knowledge of the .NET infrastructure Strong Experience with C# Azure Knowledge (Bicep, Networking, Service Bus, App Service, Functions, Cosmos DB) Soft Skills Being able to clear communicate to Traders in laymans Terms. Experience within ...

seeking a Software Engineer for the Unified Platform - Business Experience team … London. You will contribute to legacy code, take ownership of small projects and collaborate with business users to improve tooling. Fluency in Python or C#, strong communication, and 6+ years in software engineering are required; Bachelor's in CS or equivalent. The role offers exposure to proprietary ...

Source Group International is partnering with a Tier 1 Global Investment Bank to hire a Software Engineer for the eTrading Team. You will help build quality software so Traders can work … efficiently as possible and collaborate closely with the trade floor. Key projects include integration of external applications and enhancing the eTrading platform using C# and .NET, with Azure services such as Service Bus, Cosmos DB and App Service. #J-18808-Ljbffr ...

Role Purpose We are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. This is a senior hands-on role for an individual who combines deep technical … design and architecture of scalable, secure, and resilient enterprise applications, ensuring alignment with business and technology strategies. Drive Technical Leadership – Define and champion software engineering standards, architectural patterns, best practices, and reusable frameworks across the engineering community. Own Delivery Outcomes – Lead complex technology initiatives from concept through ...

London is seeking a Software Engineer for the Unified Platform - Business Experience team. You will maintain legacy code and contribute to green-field … development to empower business users with DRW technology. The role requires 6+ years of software engineering, fluency in Python and/or C#, and a Bachelor's degree in CS or SE. You will gather requirements, lead projects, and work with AI coding assistants to accelerate delivery. ...

goal is to drive efficiency, speed up transactions, reduce risk, and improve the end-customer experience. Our platform is built on a proven C# and .NET foundation, and we’re building what comes next on top of it. That means new frontier AI capabilities in TypeScript, sitting alongside … C# estate we’re actively evolving for the next era. The interesting challenge isn’t just being productive in both stacks, it’s knowing when each is the right tool and keeping the whole system coherent as our product grows. If you are passionate about how software ...

ICAP Group Services Ltd is seeking a Software Engineering Team Lead in London to manage a talented team delivering critical software for internal broking. You will work collaboratively in an Agile environment from design to implementation, ensuring quality and timely delivery of solutions. The ideal candidate ...

Greater London, UK. The role involves designing and maintaining scalable systems, implementing quality solutions, and participating in Agile practices. Key qualifications include expertise in C# and .NET Core, proficiency in Agile methodologies, and a relevant degree or certification. The company offers extensive learning programs, extensive employee benefits including free ...

Capital on Tap is seeking an AI Product Engineer to help the engineering and product teams leverage AI effectively across products and services. The role focuses on agentic systems, orchestration, and enabling teams to deliver high-quality software faster, with hands-on coding and architecture work. ...

simple and effective way. Our mission is to be inforced in every MSP! About the Role We are looking for a Backend Engineer to join our dynamic and forward-thinking team. You will be responsible for designing, developing and optimizing backend systems that power our cybersecurity solutions. … company values every day and reward those people who embody them. Skills We Need for This Role Solid proven experience with .NET and C#, particularly .NET6-10 Familiarity with API development, microservice patterns and practices, ideally including experience of OpenAPI standards Experience with both relational and non-relational databases ...