Principal Software Engineer in Belfast

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 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

Join TP ICAP as a Principal Software Engineer and lead the development of innovative, business-critical software solutions that power global financial markets. This is a senior leadership role where you will set technical direction, drive engineering excellence, and mentor high-performing teams. You’ll work in an Agile environment, influencing architecture and delivery from design through to implementation, with a strong focus on scalability, resilience, and continuous improvement. As a technical leader, you will collaborate across regions and disciplines, ensuring our solutions meet strategic objectives and deliver exceptional value to internal and external clients. At TP ICAP, you’ll lead technology initiatives that underpin global financial markets. We offer a collaborative environment, opportunities for professional growth, and the chance to make a lasting impact. If you’re passionate about engineering leadership and thrive in a fast-paced, innovative setting, we’d love to hear from you.

Key Responsibilities

• Lead and manage a cross-functional engineering team delivering cutting-edge Front Office solutions for Rates & FX business lines.
• Collaborate with Principal Engineers globally to define and implement standards for engineering excellence.
• Partner with Solution Architects and Enterprise Architecture to design solutions aligned with IT strategy and long-term vision.
• Take ownership of delivery, ensuring solutions meet business requirements, adhere to best practices, and are delivered on time and within scope.
• Champion continuous improvement by introducing new technologies, methodologies, and processes.
• Communicate effectively with stakeholders, proactively identifying and resolving impediments to minimise delivery risks.

Experience / Competencies

Essential

• Proven track record of building and managing high-performing, cross-functional engineering teams in an Agile environment.
• Extensive experience designing, developing, and maintaining distributed, event-driven, cloud-native systems.
• Expert-level proficiency in .NET Framework and .NET Core (C#).
• Strong experience in API design and development (REST, GraphQL).
• Solid understanding of relational database design and optimisation (MSSQL, MySQL).
• Hands-on experience deploying and managing cloud environments (AWS, Azure).
• Deep understanding of the full SDLC, with proactive involvement across design, development, QA, and post-release support.
• Ability to balance pragmatism with innovation, delivering high-quality solutions under tight deadlines.
• Exceptional communication and influencing skills, with the ability to lead, negotiate, and collaborate effectively.
• Experience building scalable and maintainable automated testing solutions for complex systems.

Desired

• Proficiency in WPF application development.
• Experience with financial/trading platforms and knowledge of financial markets.
• Familiarity with FIX protocol and FIX message handling.
• In-depth knowledge of AWS services.
• Exposure to Java, JavaScript, or React.
• Experience with serverless architecture and microservices.
• Understanding of TDD, BDD, or similar testing methodologies.

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 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 - City Quays - Belfast

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.