1 to 25 of 31 C# Software Engineer Jobs in London

Contract C# Software Engineer

Hiring Organisation
Enterprise Recruitment Ltd
Location
KT3, 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 … 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 ...

Contract C# Software Engineer

Location
Greater London, England, United Kingdom
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. Interfacing with hardware/physical products .NET environment, Windows Forms ...

Software Engineer (C#)

Location
Greater London, England, United Kingdom
Software Engineer (C#) - 6 month contract - New Malden, London - £53.10 ph UMB or £39.41 ph PAYE (Inside IR35) The Umbrella rate quoted above is the Gross Umbrella rate (i.e. the rate we pay to the Umbrella Company inclusive of ALL employment costs). Please note … process Experience with many of the following: Experience as a Software Engineer with particular focus to development and testing using C# WPF (Windows Presentation Foundation) experience Powershell Unit, regression and system testing Security Requirements: SC & UK EYES ONLY This role will require the person ...

Principal Software Engineer C# .Net AWS - FinTech

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Principal Software Engineer/Developer (C# .Net AWS Python) London/WFH to £130k Would you like to join a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal … experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong C# backend development skills, ideally also Python coding skills You have a good knowledge of AWS You have experience of working on highly scalable systems You have technical project ...

Software Engineer – C# / Java

Location
Greater London, England, United Kingdom
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 C#/.NET Software Engineer (LON)

Location
Greater London, England, United Kingdom
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. ...

Principal Software Engineer C# .Net AWS - FinTech

Hiring Organisation
Client Server
Location
Hackney, London, United Kingdom
Employment Type
Permanent
Salary
GBP 130,000 Annual
Principal Software Engineer/Developer (C# .Net AWS Python) London/WFH to £130k Would you like to join a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal … influence and progression? As a Principal Software Engineer you will architect and build highly performant and scalable solutions using the Microsoft tech stack an click apply for full job details ...

C# Software Engineer – Naval Fleet Systems (6‐Month Contract)

Location
Greater London, England, United Kingdom
Matchtech Group are seeking a Software Engineer (C#) on a 6 month contract in New Malden, London. You will develop and maintain software used across projects, applying your C# skills and contributing to test activities. You will work in a multi-project … cross-functional environment, using Agile practices and WPF/PowerShell tooling to deliver robust software, with onsite work and UK Security Clearance requirements. #J-18808-Ljbffr ...

Contract C# Software Engineer – Hardware Interface Apps

Location
Greater London, England, United Kingdom
Jobs Watch Ltd. seeks a Contract C# Software Engineer to develop Windows applications interfacing with hardware near Wimbledon. The role is a 6-month contract, on-site three days per week, and falls inside IR35. It emphasizes analytical skills, design reviews, and experience with multi ...

Software Engineer (C#/Java) – Finance Trading APIs, London

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer - C#/.NET & REST APIs

Location
Uxbridge, England, United Kingdom
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 ...

Senior Software Engineer (C# .NET) | London

Location
City Of London, England, United Kingdom
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 ...

Senior Software Engineer (C# / .Net) · London ·

Location
Greater London, England, United Kingdom
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 ...

Lead Software Engineer (C#/.NET/NodeJs)

Hiring Organisation
Kainos
Location
London, England, United Kingdom
make your mark? Join us and be part of something bigger.MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS: As a Lead Software Engineer (Consultant) in Kainos, you’ll be responsible for leading teams and developing high quality solutions which delight our customers and impact … will also interact with customers, share knowledge and mentor those around you. MINIMUM (ESSENTIAL) REQUIREMENTS: • Expertise in designing, building, testing and maintaining modern software applications • Technical leadership of teams building and testing modern, scalable, secure, performant applications in line with software development principles, practices and patterns ...

Principal Software Engineer - C#/.NET, AWS | FinTech AI

Location
Greater London, England, United Kingdom
Client Server Limited is seeking a Principal Software Engineer in London/Hybrid to architect and deliver scalable C#/.NET services on AWS, with optional Python work. You will influence product direction, champion best practices, and guide cross-functional teams in fast-paced sprints. … role offers hybrid work with two days in the London office and two days remote. The ideal candidate has deep C#/.NET experience, AWS knowledge, and a track record delivering scalable fintech-style systems, with #J-18808-Ljbffr ...

Mid-Level Software Engineer - C# for RegTech & Security

Location
Greater London, England, United Kingdom
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 ...

Lead Software Engineer: C# Architect & Tech Leader

Location
Greater London, England, United Kingdom
Arch Europe Insurance Services Ltd. is seeking a skilled C# software developer to lead design and development of complex applications in a collaborative environment in Greater London. The role emphasizes best practices in testing, maintenance and modern architectural thinking. You will work with SQL/NoSQL databases ...

Staff Software Engineer, Liquidity Management (C#/.NET) New London, UK

Location
Greater London, England, United Kingdom
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 ...

C# .Net Software Engineer - eTrading

Location
Greater London, England, United Kingdom
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 ...

Business Experience Software Engineer | Python/C#

Location
Greater London, England, United Kingdom
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 ...

C# .NET Software Engineer - eTrading Platform

Location
Greater London, England, United Kingdom
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 ...

Full-Stack Software Engineer – TypeScript & C# (Hybrid London)

Location
Greater London, England, United Kingdom
Moonpig is hiring a Software Engineer in London with hybrid work arrangements (2 days per week in the office). You will develop and maintain full-stack applications … powering our gift experiences, including Hotels, Gourmet experiences, and Days Out, ensuring a seamless booking journey for customers. You'll work with TypeScript, React, C#, .NET Core, and Azure across the full SDLC, collaborating with product managers, designers, engineers, and other stakeholders to deliver high-quality solutions #J ...

Deducta Senior · Hybrid · London (London Bridge) 03 de nov. United Kingdom Senior Software Engineer - Backend c# next.js typescript +4

Location
Greater London, England, United Kingdom
## Full descriptionDeductaSenior Software Engineer - BackendLocation: London, UK, near London Bridge. Hybrid, 2 in-person days a week.Compensation: £120k base salary plus equityVisa Sponsorship: Available for the right candidateStart Date: As soon as possibleWhy we existEvery decision a business makes, from the suppliers it trusts … pipelines and tools you've built are reliable, documented and used by the team without needing you.Who you areYou're a senior backend engineer who enjoys hard, loosely defined problems and takes them all the way to production. You don't need a background in enterprise data ...

Software Engineer - Business Experience Platform (Python/C#)

Location
Greater London, England, United Kingdom
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. ...

Senior Software Engineer – Payments Platform (C#/.NET)

Location
Greater London, England, United Kingdom
Ripple Inc. in London is hiring for a software engineer to join the Treasury Payments team. You will design and deliver full-stack features across .NET 8 services and React front ends, modernising a large legacy codebase with automated tests and observability. Daily collaboration with product ...