176 to 196 of 196 C# Jobs in Berkshire

Data Engineer - C#/SQL/Azure DevOps/Kubernetes/Docker/Clickhouse. Data consumption, Data discovery, fast retrieval. £700/Day Inside IR35. 6 month rolling. Hybrid London. My client is a top tier commodities trading house. They are building a repository of gas data for analysts. It’s all about data, data consumption, data discovery, fast retrieval. More ❯

IMPORTANT: ONLY APPLY IF YOU HAVE EXPERIENCE WITH TRADING PLATFORM SUCH AS ORCHESTRADE, MUREX, CALYPSO, CHARLES RIVER, OR SIMILAR TRADING SYSTEMS. The Role We're seeking an experienced Senior C# Developer to architect and build enterprise-grade trading and risk management systems. You'll design robust middle-tier solutions for high-frequency trading environments, working directly with traders, portfolio managers … and quants to understand complex financial products and translate requirements into scalable systems. Technical Skills: • 7+ years of professional C# and .NET development experience • Deep expertise in distributed systems and messaging architectures (Kafka, RabbitMQ, TIBCO, or equivalent) • Solid understanding of architectural patterns: microservices, event sourcing, domain-driven design • Proficiency with SQL and NoSQL databases in high-volume environments • Strong async More ❯

play a key role in refactoring existing SQL pipelines, enhancing data models, and implementing best practices for high-volume, low-latency data operations. This system will be built in C# .NET, but the real focus of the role is on experience with non-relational databases - ideally clickhouse. They accept alternative experience with C#, Python or similar languages. If not C# … Python is preffered. The ideal candidate will bring strong hands-on ClickHouse experience , and some experience in either C#/.NET/Python. 💷 Day rate: Up to £800/day Inside IR35 📈 Contract: 6 months rolling (long-term migration programme) 📍 Location: Hybrid – 2–3 days office, London 💻 NO ENERGY TRADING EXPERIENCE REQURED - great opportunity for someone to get into the … platforms. Establish data quality controls, monitoring, and performance tuning best practices. Support the ongoing evolution of the data architecture and tooling ecosystem. Experience Required: 5+ years’ experience as a C# Engineer or ClickHouse Developer in trading or financial services. Expert-level SQL development and optimisation skills. Hands-on experience with ClickHouse (architecture, performance tuning, schema design). Experience with data More ❯

QA Engineer 🧑💻 | C# | JavaScript | Playwright | FinTech | £95,000💷 My client is seeking a QA Engineer to work across the front, middle and back office. This role is seeking candidates who have exposure to the below skill set and come from a financial background. Location - London📍 Salary - £95,000 💷 Hybrid Working - 3 days per week onsite 🏢 Strong proficiency in C# and More ❯

C# Developer | Energy Trading | ETRM | OpenLink Endur | Hybrid (London) | £800/Day Inside IR35 | 6-Month Rolling Contract We’re working with a major energy and commodities trading house undergoing a large-scale technical transformation across their Power & Gas trading desks . As trade volumes increase, the business is investing heavily in system integration to enhance performance and data flow … a high-impact integration project , focused on improving how data moves from Olympus ETRM into OpenLink Endur , ultimately boosting trading capabilities. 🧩 The Role We're looking for three experienced C# Developers with strong back-end skills and a background in Energy or Commodities Trading . This project demands hands-on experience in trading systems, ideally with ETRM/CTRM exposure … OpenLink Endur or Orchestrade 🧠 What You’ll Bring Solid C# back-end development experience Experience with ASP.NET Background in Energy Trading or Commodities Hands-on experience with ETRM/CTRM platforms - OpenLink Endur or Orchestrade Bonus: Previous experience on integration projects involving Olympus and/or OpenLink Endur 💼 Contract Details 3 days/week onsite in London (hybrid model More ❯

Data Developer – Hybrid - £800/day Inside IR35 | C# | ClickHouse | SingleStore | Rockset | TimescaleDB | 6-Month Rolling | I’m working with a commodities trading firm that’s embarking on a greenfield rebuild of their data-intensive trading platform, moving from traditional SQL infrastructure to a next-generation analytical stack built in .NET and ClickHouse. They’re looking for a Data Developer …/Engineer with a strong C# background and solid experience working with analytical databases and modern data lake technologies. The Details £800/day Inside IR35 6-month rolling contract Hybrid, 2 days onsite in London Key Focus Areas Strong experience with .NET/C# (backend-focused) Hands-on with analytical databases such as ClickHouse, SingleStore, Rockset, or TimescaleDB Experience … e.g. Apache Iceberg, Delta Tables, Apache Spark, column stores) Comfortable working with large-scale data ingestion and processing (batch or streaming) Data Developer – Hybrid - £800/day Inside IR35 | C# | ClickHouse | SingleStore | Rockset | TimescaleDB | 6-Month Rolling More ❯

Senior C# Developer within FX Options – Investment Banking – Greenfield Project Location: Central London (3 days per week onsite) Contract Type: Outside IR35 Salary/Rate: Up to ~£825/day DOE A leading investment banking team is embarking on a greenfield build of a high-performance pre-trade application and is seeking a Senior C# Developer with strong experience in … desk to design and build a system that handles large volumes of market data in near real-time. Key Responsibilities: Design and develop scalable, high-performance systems using modern C# .Net (version 9) Build and integrate APIs and microservices to support trading workflows Collaborate closely with FX Options traders to understand business requirements and deliver tailored solutions Contribute to architectural … a greenfield application Participate in the migration of legacy monolithic systems to microservices (Optional) Support front-end development using ReactJS across related applications Required Experience: Expert-level proficiency in C# with a strong grasp of recent language features and .NET ecosystem Proven experience working with FX Options trading systems or directly with Options traders Solid understanding of systems integration, API More ❯

suite includes connectivity to markets and multi-dealer venues, single dealer platform, pricing and trader tools, and supports FX spot, forward, options and deposits. The services are implemented in C#, Java and KDB+. The FX business is looking to improve their electronic footprint by leveraging KDB+ to determine client toxicity, back-testing and parameterisation of trading strategies, real-time generation … FATCA, EMIR, MiFID), Pricing & Valuation, Organizational Transformation & Process Improvement. IT & Information systems consulting: Business Analysis, Project Management, Change management, Front Office Support (functional and technical), Development (e.g C++, Python, C#, Java, VBA), Financial Software (e.g. Sophis, Murex, Summit, Calypso), IT Transformation & Innovation. As part of Quanteam Group, Quanteam UK & PL has today more than 80 consultants, working for major Capital More ❯

The Client My client is a market leading FinTech business that spun-out of one of the largest and most successful hedge funds in the world. Their offering is a suite of technology and investment management infrastructure services that they More ❯

your work on live trading decisions. High-Visibility Projects – Deliver technical solutions that are business-critical, fast-paced, and directly aligned with P&L outcomes. Tech Stack – Work across C#, SQL, and Excel/VBA with opportunities to introduce Python and modern data tools as the role evolves. Autonomy & Ownership – Shape your own solutions, from idea through to deployment, in … them into production. Your work will blend short-term delivery with longer-term technical improvements, always focused on speed, stability, and reusability. Expect to work across technologies such as C#, SQL, and Excel/VBA, with opportunities to incorporate Python and modern data frameworks as projects evolve. What You’ll Need Solid background in front-office or trading technology within … financial services Strong development experience across C#, Excel/VBA, and SQL Understanding of financial products, ideally spanning Fixed Income, Derivatives, or other cross-asset classes A hands-on approach and the confidence to collaborate directly with trading and risk teams The ability to balance fast-paced delivery with structured, maintainable development practices Curious to explore new tools and technologies More ❯

from prototype to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java) What they’re looking for: Solid professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write … production-grade code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance optimisation, and clean software design principles Confident working closely with quants and traders in a fast-paced environment More ❯

This is a hands-on role with real influence, helping shape how we deliver integrations and modernise our tech stack. 🔧 You’ll: Deliver end-to-end integration solutions using C#, SQL and REST APIs Lead customer workshops to gather and validate technical requirements Support internal teams with integration strategy and product enhancements Act as a technical SME in pre-sales … engagements Collaborate with cross-functional teams to ensure successful delivery 🧠 You’ll Need: Strong experience with C# and SQL Familiarity with XML, XSLT, JSON and modern integration methods Excellent communication and stakeholder engagement skills Experience with Microsoft tech stack and cloud platforms (Azure preferred) 🎯 You’ll receive: Hybrid working (1 x day per month on-site at our Wetherby, Reading More ❯

and are looking for one of their first hires — someone ready to shape the platform from the ground up. What You’ll Do Build APIs and backend services in C#/.NET 8+ Develop frontend experiences using Next.js and TypeScript Work in a modern Azure environment (Functions, Container Apps, Event Grid, Service Bus) Influence architecture, performance, and developer experience decisions … a DevOps-driven culture, shipping iteratively and continuously Experiment with AI to solve problems creatively Who You Are 3+ years as a full-stack or backend engineer Strong in C#/.NET and Next.js/TypeScript Experienced with serverless or containerized applications (Azure experience is a plus) Comfortable working with autonomy, ownership, and a fast-moving product Collaborative, communicative, and More ❯

Position: QA (Appium)/Technical Account Manager (TAM) - Enterprise clients Salary: £80k per annum + bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (2 days per week in the office) Are you a Senior More ❯

Position: QA Tester/Technical Account Manager (TAM) - Enterprise clients Salary: £73,000.00 + 4% bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (2 days per week in the office) Are you a QA More ❯

Position: QA Tester/Technical Account Manager (TAM) - Enterprise clients Salary: £73,000.00 + 4% bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (2 days per week in the office) Are you a QA More ❯

Position: QA Tester/Technical Account Manager (TAM) - Enterprise clients Salary: £73,000.00 + 4% bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (1 day per week in the office) Are you a QA More ❯

Position: QA (Appium)/Technical Account Manager (TAM) - Enterprise clients Salary: £80k per annum + bonus Industry: Global software leader in DevOps, Testing, AI & Data Management Location: Bracknell Hybrid (2 days per week in the office) Are you a Senior More ❯

Hedge Fund to work on a systematic FX team, working closely with traders and analysts to build and enhance all systems. The majority of the systems are built using C# with Python and Excel integrations built in. Your code will have a direct impact on real-world trading, and you'll be able to see the results of your work … C#. If you've worked in a similar financial environment and you're keen to broaden your experience, that'll work too but the key thing is you have C# experience. FX experience is desirable but your knowledge of various financial products and derivates will be tested at interview. So, if you're looking for a move into the buy More ❯

a team of other Automation Infrastructure Engineers and Analysts Experienced in the following: Infrastructure Development and Automation: Building use cases and creating infrastructure applications using programming languages such as C#, C++, and Python to process data locally Containerization and Orchestration: Using tools like Docker and Kubernetes to package and manage applications for scalable and efficient deployment. Packaged Application and industry … Collaborate with cross-functional teams to ensure data quality and integrity. We are looking for experience in the following skills: Extensive experience with Network and Infrastructure Engineering Experience with C#, C++ and Python Infrastructure API implementation experience Experience with creating and managing Data Pipelines, Experience with Data Analytics Experience with Palantir Foundry & AIP or other equivalent tools Experience of SQL More ❯

for someone who can drive projects, mentor junior and deal with senior business stakeholders. Technically they are looking for strong E2E test automation with a heavy focus on complex C# API automation testing. What's required Strong experience in C# backend testing Previous experience working in trading is strongly desirable Strong ability to communicate with non technical stakeholders What's More ❯