1 to 25 of 33 C# Developer Jobs in London

Senior C# Developer Location: London (Fully Onsite) Employment Type: Permanent Salary: £50,000 - £70,000 (DOE) Visa Sponsorship: Not available We're working with a London-based organisation that is looking to hire an experienced Senior C# Developer to join their engineering team … ideal for someone who enjoys hands-on development, working closely with the business, and taking ownership of complex systems. The Role As a Senior C# Developer, you'll be responsible for designing, developing, and maintaining business-critical applications built on C#/.NET and SQL . ...

C# Developer/Backend Software Engineer (.Net Azure API) London/WFH to £90k Are you a backend focused C# Developer with a strong knowledge of Azure? You could be progressing your career in a senior, hands-on C# Developer role … days holiday Pension Gym membership Private Health and Dental Insurance Access to a wide range of financial services Hybrid working Your role: As a C# Developer you'll join a team acting as a 'tech incubator' within the wider business who are enabling the business to transform ...

Senior C# Developer - 8 Month contract role - Hybrid (London)*** RED now has a new contract opportunity for a C# Developer to join one of our key partners for a brokerage project . The initial contract will be for 8 months with excellent extension opportunities. … start 14th of May and will be hybrid with 3 days pr week on-site in London , United Kingdom. Role responsibility: As a Senior C# developer, you will lead the design and development of high-performance software while bridging the gap between application code and cloud infrastructure. ...

C# Developer/Backend Software Engineer (.Net Azure API) London/WFH to £90k Are you a backend focused C# Developer with a strong knowledge of Azure? You could be progressing your career in a senior, hands-on C# Developer role ...

Front Office C# Developer (Quant, E-Trading and Commodities) Quant Day Rate: Up to £900 (Via Umbrella) E-Trading and Commodities Day Rate: Up to £750 (Via Umbrella) Working Arrangement: Hybrid (3 Days P/W Onsite Marylebone) Duration: 6 months (initial) A leading Global Markets business … expanding across three front-office technology teams and is seeking experienced C# Developers to join their Quant, E-Trading and Commodities groups. These roles sit close to the business, working directly with traders, quants and cross-functional partners to build high-performance systems that support pricing, execution, liquidity, balance ...

Title: C# Developer - Fixed Income and Repo Trades Location: London, 3 days per week in the office Contract Length: 12 Months + Day Rate: Negotiable via Umbrella Company Are you ready to take your C# development skills to the next level in a dynamic financial environment … Join us at a leading Financial Institution where your talents will shine! We're looking for a passionate Repo Trading Systems C# Developer to enhance our trading technology and make a real impact. What You'll Do: Develop and enhance robust C# applications for our Repo ...

C# Developer – Fixed Income Options London | Hybrid | Leading Options Market Maker A leading global options market maker is expanding its Fixed Income Trading team in London and is seeking a junior to mid-level C# Developer to join a high-impact, front-office engineering … enhance trading tools and systems that support pricing, execution, and research across fixed income options markets. About this role: Develop and enhance high-performance C# trading applications used by front-office teams Collaborate closely with traders and quantitative researchers to enable new trading strategies Build scalable, low-latency systems ...

C# Developer (Mid-Level) ⚙️ Middle & Back Office Systems | Commodities & Energy Trading 💰 Up to £75k + Bonus + Benefits | 🏢 London (Hybrid) A leading Commodities & Energy Trading firm is looking for a C# Developer to join its Middle & Back Office technology team. This role supports … reporting across markets including Power, Gas, LNG, Oil and Environmental products. This is a great opportunity for someone with 3–6 years of C#/.NET experience who enjoys working on business-critical backend systems and wants to deepen their experience within a trading environment. The role sits outside ...

Title: C# Developer Location: Bromley, UK Type: Contract Candidates will be proficient in software design focused on a cross-language REST based n-tier architecture and executed using agile methodologies (Scrum, Test Driven Development, unit/integration testing, pair programming, etc.). The successful candidate will … develop our CI pipeline and deployment strategies REQUIRED SKILLS/EXPERIENCE Demonstrable experience of having designed and developed complex server-side functionality in C# SQL - preferably Oracle Shell scripting and basic Unix knowledge desirable Proficient in writing unit, integration, and acceptance tests Comfortable in an agile working environment Self ...

Title: C# Developer Client: Elite FinTech Firm Experience Level: 2+ years' Salary: Up to £100k + Bonus + Package Location: London (Flexible Working) An elite fintech firm are searching for C# Developers to join a group of the highest-regarded talent around! This team … high performance tools - utilising cutting edge technology across a diverse range of greenfield projects Tech driven environment - most recent versions/frameworks of C# used daily Skills/Experience Strong knowledge of C# STEM degree - strong computer science fundamentals (Preferred ...

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 Javascript SQL Oracle Tasks Tasks range from understanding business requirements, designing application ...

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 ...

Front Office C# Developer (Quant, E-Trading and Commodities) Quant Day Rate: Up to £900 (Via Umbrella) E-Trading and Commodities Day Rate: Up to £750 (Via Umbrella) Working Arrangement: Hybrid (3 Days P/W Onsite Marylebone) Duration: 6 months (initial) A leading Global Markets business … expanding across three front-office technology teams and is seeking experienced C# Developers to join their Quan click apply for full job details ...

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been … that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position to make decisions about ...

client, a high-performing, data-driven hedge fund, is seeking a top-tier Graduate/Junior C# Developer to join their London-based technology team. This is a rare opportunity to join a lean, high-calibre environment where technology sits at the core of the business. … weekly production releases, requiring engineers who are both pragmatic and delivery-focused. Key Responsibilities will include: Building and enhancing high-performance systems in C# supporting trading and analytics workflows Developing tools for market data processing, trading infrastructure, and internal platforms Working across the full development lifecycle: design, implementation, testing ...

Lead C# Backend Developer Location: Central London (Onsite) Salary: £75,000 - £85,000 Type: Permanent Sponsorship: Not available (must be UK-based) Overview We are working with an established software house based in Central London who are looking to hire a Lead C# Backend Developer … environment and enjoys working closely with both technical and non-technical stakeholders. Role & Responsibilities Lead the design and development of scalable backend systems using C# and .NET Framework Provide technical leadership and mentorship to a team of developers Take ownership of backend architecture and ensure best practices are followed ...

Lead C# Backend Developer Location: Central London (Onsite) Salary: £75,000 - £85,000 Type: Permanent Sponsorship: Not available (must be UK-based) Overview We are working with an established software house based in Central London who are looking to hire a Lead C# Backend Developer ...

Lead Developer, Azure, .NET, C#, React, LogicApps, Full Stack Engineer, Mainly Remote Lead Developer required for a Professional Services business based in Central London. There will be a requirement to be present in the office circa twice a month. On the odd occasion … more than this We need someone with the following skills: The following skills as absolute PRIME - .NET, C#, Azure (including Logic Apps) and React. AZURE FIRST! Not AWS or GCP Strong Leadership where you have operated as a Lead Developer in a current of previous role Solid ...

Attribution Search is partnered with a global hedge fund, looking to hire a C#/.NET developer into their London based Software Engineering team. This is an exciting opportunity to join a global trading firm where you will have direct responsibility for the performance of the fund. … those with the most urgency. Desired Experience: Outstanding Academic Experience (Computer Science, Maths, Engineering, Sciences, or similar) 2-5 years software engineering experience in C#/.NET Advanced C#/.NET experience (.NET Core is preferred) Strong SQL experience, including writing complex queries, working with relational databases ...

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. … 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 ...

Working for a major energy trader (energy/renewables). We are recruiting a Tech Lead with a background in C#/.Net/Angular/Oil. The Role As a lead member of a skilled large global team (London, NYC) of software engineers, you will play a role … developing the core trading platform. The customers are varied; traders, analysts, researchers and data scientists. Essential Skills: 10+ years of experience working with C#/.NET (8) technologies 5+ years in a leadership role, managing 5+ software engineers (code reviews, architecture) Experience with RDBMS (Oracle, SQL Server, Sybase) Experience ...

Lead Developer, Azure, .NET, C#, React, LogicApps, Full Stack Engineer, Mainly Remote Lead Developer required for a Professional Services business based in Central London. There will be a requirement to be present in the office circa twice a month. On the odd occasion ...

Power Platform Developer (D365/C#/Azure) London/Hybrid £50,000-£58,000 + bonus + benefits A leading financial services organisation is seeking a hands-on Power Platform Developer to join its in-house PP team. This is a pure developer … focused on building and supporting a mature Microsoft Power Platform and Dynamics 365 estate. The role combines low-code development with traditional engineering, including C#, plug-ins and Azure Function Apps, to deliver robust, scalable solutions for a regulated, buy-side environment. The role Develop and enhance solutions using ...

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 ...

C# Front Office Developer- TOP HEDGE FUND! Robert Half Limited is representing this client. This is a Permanent role with a high bonus Hybrid working -Based in the city and 3 days in the office and 2 days from home This isn't a large PM environment … Forwards Why this role? Small, elite team (no big firm bureaucracy) Real ownership & direct impact High-volume, fast-paced environment Strong engineering culture (C#, Python, SQL, MUST HAVE Azure, CI/CD) Must have: Strong C# experience in financial markets with at least 4+ years' experience Exposure ...