301 to 325 of 382 C# Jobs in London

Senior C# Developer (Edinburgh)

Hiring Organisation
SeeByte
Location
London, England, United Kingdom
individuals who are UK British Nationals.SeeByte, the global leader in developing of smart software solutions for uncrewed maritime systems, are looking to recruit aSenior C# Developerto join their team in theirEdinburghorBristol office, Hybrid (60% of time in office).You will have a unique opportunity to play a significant role … role and become a software engineering expert, developing exciting software systems for uncrewed systems.Key Responsibilities of the role:Design, implement, test, and deliver robust C# software solutions as part of a SeeByte engineering team.Deliver work to a high standard whilst proactively identifying and suggesting software improvementsDefine customer and project requirements ...

SDET Automation Role

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Job Title: SDET Automation/QA Automation Engineer Contract: 6 Months (possibility for extension) Location: London (Hybrid - 2 days a week) Daily Rate: Circa £690/Day Job Overview We are seeking an experienced QA ...

SDET Automation Role

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Job Title: SDET Automation/QA Automation Engineer Contract: 6 Months (possibility for extension) Location: London (Hybrid - 2 days a week) Daily Rate: Circa £690/Day Job Overview We are seeking an experienced QA ...

Senior C# Developer - Head of Core Platforms | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
London Area, United Kingdom
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 ...

Senior C# Developer - Head of Core Platforms | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
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 ...

C# Developer - Up To £720 Per Day - London

Hiring Organisation
Hunter Bond
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 720 Daily
Role: C# Developer Location: London (Hybrid) Rate: Up To £720 Per Day C# Developer - Risk Technology We are working with a well-regarded global investment bank seeking an experienced C# Developer to join its Risk Technology team. This role sits at the heart of the bank's risk platform, building … work closely with risk managers to deliver high-performance, resilient solutions in a Front Office-aligned environment. Required Extensive commercial experience developing in C#/.NET within a financial services environment Strong background in Risk systems, such as Market Risk, Credit Risk, Counterparty Risk, or XVA Experience building high-performance ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £70,000 per annum
.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

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
.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 ...

Junior C# Quantitative Developer - Up to £70,000 + Bonus + Package

Hiring Organisation
Hunter Bond
Location
Greater London, England, United Kingdom
Hiring: Junior C# Quantitative Developer | Hedge Fund | London (Hybrid) Are you a talented C# developer with a passion for finance, data, and quantitative problem-solving ? Join a leading hedge fund where technology and mathematics drive every decision. We’re looking for a Junior Quantitative Developer to work alongside experienced quants … traders, and engineers — building and optimizing the systems that power our trading strategies. 💼 What You’ll Do Develop and maintain high-performance C# applications used in research, risk, and trading Collaborate with quants to implement pricing models and backtesting frameworks Enhance data processing pipelines and contribute to performance optimization Gain ...

Urgent Contract! - C# Developer - Up to £750/day - London

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
Title: C# Developer Rate: Up to £750/day Location: London (Hybrid) The Opportunity: I am working with a leading global investment bank seeking a C# Developer to join their high-performing FO Trading team. This is an exceptional opportunity to work alongside experienced technologists and investment professionals building mission … critical systems that drive trading, research, and risk management operations. What You Bring (Required): Deep commercial experience engineering C#/.NET solutions within mission-critical financial services platforms Hands-on delivery of enterprise risk platforms (Market, Credit, Counterparty Risk, XVA) with solid understanding of rates, FX, equities, and derivatives Experience ...

Urgent Contract! - C# Developer - Up to £750/day - London

Hiring Organisation
Hunter Bond
Location
London Area, United Kingdom
Title: C# Developer Rate: Up to £750/day Location: London (Hybrid) The Opportunity: I am working with a leading global investment bank seeking a C# Developer to join their high-performing FO Trading team. This is an exceptional opportunity to work alongside experienced technologists and investment professionals building mission … critical systems that drive trading, research, and risk management operations. What You Bring (Required): Deep commercial experience engineering C#/.NET solutions within mission-critical financial services platforms Hands-on delivery of enterprise risk platforms (Market, Credit, Counterparty Risk, XVA) with solid understanding of rates, FX, equities, and derivatives Experience ...

Lead Software Engineer C# / React.js - Top Trading Firm!

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior/Lead Software Engineer (C#/React.js) - Top Trading Firm! Location: London (Hybrid: 3 onsite/2 WFH) Robert Half Ltd is representing this role. One of the strongest engineering roles in London right now. Are you looking for influence and autonomy? Join a leading trading firm that … critical systems used across trading and structured products. What You'll Work On: Full greenfield rebuild of legacy trading systems Modern full-stack engineering: C#/.NET + React.js High-performance, multithreaded architectures Close collaboration with product, trading, and a 15+ engineering team What We're Looking For: Strong C# ...

C# Senior Software Engineer (VP) - Up to £130k + Bonus

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
title: C# Senior Software Engineer (VP) Client: Investment Firm Experience Level: 5+ years' Salary: - Up to £130k + Bonus Location: London (Hybrid) An elite investment client are searching for Senior C# Developers to join a group of the highest-regarded talent around! Role This is to build … latest frameworks within .Net Skills/Experience Proven experience working as a Software Engineer within the financial services domain Knowledge of C# .Net core Degree in Computer Science/Engineering is preferred! Experience with any web technologies including WPF or React is sought after ...

C# Senior Software Engineer (VP) - Up to £130k + Bonus

Hiring Organisation
Hunter Bond
Location
London Area, United Kingdom
title: C# Senior Software Engineer (VP) Client: Investment Firm Experience Level: 5+ years' Salary: - Up to £130k + Bonus Location: London (Hybrid) An elite investment client are searching for Senior C# Developers to join a group of the highest-regarded talent around! Role This is to build … latest frameworks within .Net Skills/Experience Proven experience working as a Software Engineer within the financial services domain Knowledge of C# .Net core Degree in Computer Science/Engineering is preferred! Experience with any web technologies including WPF or React is sought after ...

C# Developer - Desktop Applications - Banking

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £415/day inside IR35
Global bank based in Canary Wharf. Role - C# Developer - Desktop Applications Duration - 6 months with likely extension Rate - £415 p/d (inside IR35) Location - Hybrid/Canary Wharf Tech Stack C# WPF Winforms SQL Oracle Tasks Tasks range from understanding business requirements, designing application structures, business data analysis, programming ...

Senior Software Engineer

Hiring Organisation
Harrington Starr
Location
City Of London, England, United Kingdom
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 ...

Dotnet Developer

Hiring Organisation
Harrington Starr
Location
London Area, United Kingdom
seeking an experienced .NET Developer to join our Business Intelligence IT team. You will develop and support SMBC BI business applications using C# and MS .NET Framework , working across SQL Server and Oracle databases. This role involves both new development and maintenance of existing applications , ensuring stability and compliance with … change management procedures. Key Responsibilities Develop and maintain C#/.NET applications for BI systems. Analyse business requirements and design technical solutions. Write and optimise T-SQL and PL/SQL scripts for data analysis. Collaborate with DBAs and infrastructure teams in London and New York. Support production environments, troubleshoot ...

Dotnet Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
seeking an experienced .NET Developer to join our Business Intelligence IT team. You will develop and support SMBC BI business applications using C# and MS .NET Framework , working across SQL Server and Oracle databases. This role involves both new development and maintenance of existing applications , ensuring stability and compliance with … change management procedures. Key Responsibilities Develop and maintain C#/.NET applications for BI systems. Analyse business requirements and design technical solutions. Write and optimise T-SQL and PL/SQL scripts for data analysis. Collaborate with DBAs and infrastructure teams in London and New York. Support production environments, troubleshoot ...

QA Automation Engineer

Hiring Organisation
Adroit People Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 per day
Greetings!AdroitPeopleiscurrentlyhiring Title: QA Engineer Location:London, UK WorkMode:Hybrid Duration: Contract OR FTC Keywords:with xUnit, Nunit, MS Playwright, RestSharp,Automation, Banking,Azure,C#,.Net Role Purpose Azure Pipelines Bachelors degree in Computer Science, Information Technology or related field. At least 3 years of experience in automation testing with … xUnit, Nunit, MS Playwright, RestSharp Experience in programming languages such as C# in Dotnet Soft skills like good communication skills Strong understanding of Agile methodologies and experience working in an Agile development environment. Ability to work in a fast-paced environment and adapt to changes quickly. Min 5 years experience ...

.Net Engineer

Hiring Organisation
numi
Location
City of London, London, United Kingdom
involved in challenging, complex development for industry leading companies, as well as smaller start up projects Centered on a tech stack that includes C# .NET, React AWS, and event-driven microservices, this position is tailored for engineers ready to thrive in modern cloud-based ecosystems. As an Engineer you will … growth and excellence. Ideal candidates hold a Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. A .NET, C# and backend or full-stack development is essential, complemented by strong problem-solving skills, an agile mindset, and excellent communication. What You'll Get: Competitive salary ...

.Net Engineer

Hiring Organisation
numi
Location
London Area, United Kingdom
involved in challenging, complex development for industry leading companies, as well as smaller start up projects Centered on a tech stack that includes C# .NET, React AWS, and event-driven microservices, this position is tailored for engineers ready to thrive in modern cloud-based ecosystems. As an Engineer you will … growth and excellence. Ideal candidates hold a Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. A .NET, C# and backend or full-stack development is essential, complemented by strong problem-solving skills, an agile mindset, and excellent communication. What You'll Get: Competitive salary ...

Principal Developer (Newcastle Upon Tyne)

Hiring Organisation
VIQU IT Recruitment
Location
London, England, United Kingdom
migrate from their legacy systems, to modern, cloud first systems in Azure. They are looking to hire a lead/principal developer focused on C# and .NET development and architecture. This will initially focus on Modular Monolith design, moving to Microservices architecture as/when required. Job Duties … C#.Help to mentor junior engineers.Implement continuous improvement initiatives throughout the team. Experience required for the Principal Developer: Hands on experience with .Net with C# development within an enterprise environment.Prior experience with Modular monolith architecture, with Microservices design being a nice to have.Experience with SQL server, and Restful API's.Experience with ...

Platform Engineering Manager

Hiring Organisation
Cocentric
Location
City of London, London, United Kingdom
BRING Strong experience with Service Fabric and Kubernetes Proven experience architecting and scaling B2B SaaS platforms Strong full-stack technical expertise – especially across C#, JavaScript, and React Experience integrating with APIs and identity platforms (e.g. Microsoft Entra ID/Azure AD) Solid understanding of cloud infrastructure – ideally Azure and Service … hands-on approach to problem-solving and decision-making Background in IAM or SSO is a bonus OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline ...

Platform Engineering Manager

Hiring Organisation
Cocentric
Location
London Area, United Kingdom
BRING Strong experience with Service Fabric and Kubernetes Proven experience architecting and scaling B2B SaaS platforms Strong full-stack technical expertise – especially across C#, JavaScript, and React Experience integrating with APIs and identity platforms (e.g. Microsoft Entra ID/Azure AD) Solid understanding of cloud infrastructure – ideally Azure and Service … hands-on approach to problem-solving and decision-making Background in IAM or SSO is a bonus OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline ...

Microsoft AI Engineer / Azure Artificial Intelligence Engineer

Hiring Organisation
Huxley
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £90,000 per annum
Azure AI solutions, including Azure OpenAI Service, Azure Cognitive Services, and Azure Machine Learning Requirements Extensive experience with Azure AI solutions, programming expereince (Python, C#, or Java) Thisis a brilliant new role, and an opportunity to join a business who are genuinley growing this team to be a future centre … team that will significantly contribute to the digital transformation this STEM business Role requirements Strong Programming Skills: Proficiency in programming languages such as Python, C#, or Java, with a deep understanding of software development principles. Extensive experience with Azure AI solutions, including Azure OpenAI Service, Azure Cognitive Services, and Azure ...