Software Engineer - C#

The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.Through our people and technology, we connect clients to superior liquidity and data solutions.The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world's leading provider of OTC data, and an award winning all-to-all trading platform.The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world's most trusted, innovative, liquidity and data solutions specialist. Role Overview: The Global Analytics team builds and maintains mission-critical systems for price discovery, order management, and trade capture-tools that empower the front office to operate efficiently and effectively across global markets.As a C# Software Engineer, you will join a high-performing team delivering innovative, business-critical software solutions to front-office users. Your work will span desktop applications, web-based platforms, and API services, deployed both on-premises and in the cloud. You'll play a key role in designing scalable, high-performance systems that support real-time trading and analytics, ensuring reliability and speed in a fast-paced environment. Role & Responsibilities: Design, develop, test, and maintain high-performance, mission-critical software with a strong engineering mindset and focus on quality. Collaborate closely with broking staff, product managers, and QA engineers to translate complex business requirements into robust, scalable software solutions. Provide accurate time estimates and delivery schedules aligned with business expectations, proactively communicating risks or impediments to ensure transparency. Take shared ownership of supporting both existing and newly developed systems, ensuring reliability and rapid issue resolution. Document systems thoroughly, including new features and legacy components, to enhance maintainability, troubleshooting, and knowledge sharing across the team. Experience / Competences: Essential Hands-on experience in C# software engineering using both .NET Framework and .NET Core, including ASP.NET Web API, WCF, and WPF. Strong proficiency in Object-Oriented Programming, design patterns, dependency injection, and SOLID principles. Proven expertise in API design (REST and GraphQL). Solid experience building multi-threaded and asynchronous systems. Skilled in unit testing frameworks such as NUnit, Moq, and Fluent Assertions, with a strong focus on test-driven development and writing clean, maintainable code. Experience in relational database design and development (MS SQL Server and Oracle). Strong understanding of data structures, algorithms, and software design principles. Excellent written and verbal communication skills, including the ability to produce clear technical documentation. Demonstrated ability to work across the full SDLC-from design and development through QA, deployment, and post-release support. A proactive team player who actively participates in code reviews and production support. Highly organized with exceptional attention to detail, able to work independently on complex problem-solving and investigations.Desired Experience in financial services, ideally with exposure to fixed income, options, or swaps. Familiarity with AWS services such as EKS, CDK, DynamoDB, S3, and OpenSearch. Proficiency in Git and GitLab CI/CD for version control and automated deployments. Experience developing distributed microservices and working with Solace messaging. Job Band & Level Professional / 5 Company Statement We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement. Location UK - 135 Bishopsgate - London Connecting clients, communities and colleagues for sustainable growth TP ICAP connects people, platforms, ideas, and insight across the world's financial, energy and commodities markets. As a global leader in market infrastructure and data-led solutions, we enhance market access, increase efficiencies, and unlock possibilities. Work with us Joining TP ICAP puts you at the heart of markets that matter.You'll have the freedom to innovate and act on your initiative. We'll train you and build your abilities in your specialist area, so that you can become an expert in your field. And all within a connected network that's there to set you up for success.TP ICAP Group is a collection of premium brands each with a distinct, client-focused offering. Underpinning and connecting these client-facing brands is the financial security, operational strength and know-how we have as a Group.Connections are at the heart of what we do. We combine our people's know-how with the latest technology to improve price discovery, trade execution and liquidity flow.Connections create strength. Through them, we help our clients to manage risk, realise investment strategies and expand the scope for growth.And connections act as a catalyst. Sparking richer solutions for our clients to break new ground, modernising markets for future performance, and creating dynamic careers for our people. Our capacity to connect builds trust, supports communities and gives us the power to anticipate and respond to change, whatever direction the world takes. It's what makes TP ICAP a mainstay in the global markets, now and in the future.TP ICAP. We connect.