Engineer C# (Full Stack

Group Overview

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, the world's leading provider of OTC data, and an award‑winning all‑to‑all trading platform.

Founded in London in 1866, the Group operates from more than 60 offices in 27 countries and employs 5,200 people. We work as one to achieve our vision of being the world's most trusted, innovative, liquidity and data solutions specialist.

As a Full Stack C# Engineer, you will play a key role in designing and delivering high‑quality, scalable applications that power critical business functions. This position requires strong technical expertise across front‑end and back‑end technologies, a collaborative mindset, and the ability to influence architectural decisions. You will work closely with product owners, architects, and other engineers to build innovative solutions that meet business needs while adhering to best practices in security, performance, and maintainability.

• Design, develop, and maintain scalable full‑stack applications using modern frameworks and cloud technologies.
• Collaborate with cross‑functional teams to deliver high‑quality software aligned with business objectives.
• Implement and maintain microservices architecture and API integrations.
• Ensure adherence to SDLC processes, including CI/CD pipelines and automated testing.
• Optimize application performance and ensure security best practices.
• Participate in architectural discussions and contribute to evolving systems toward target state architecture.
• Troubleshoot and resolve complex technical issues in production environments.
• Mentor junior engineers and promote engineering best practices.
• Work within Agile delivery teams, contributing to planning, estimation, and retrospectives.
• Stay current with emerging technologies and incorporate best practices into development.

• Strong experience in full‑stack development within enterprise environments.
• Proficiency in front‑end technologies:
  Type Script, React (or similar frameworks).
• Strong back‑end experience with C# language.
• Solid understanding of SOLID principles.
• Good understanding of RESTful APIs.
• Experience with cloud platforms (AWS preferred) and containerization (Docker/Kubernetes).
• Knowledge of CI/CD tools and practices (e.g., Git Lab).
• Familiarity with automated testing frameworks and maintaining code quality.
• Strong database skills (SQL).
• Excellent problem‑solving, communication, and collaboration skills.

• Experience with microservices and event‑driven architectures.
• Experience with AI‑assisted design and coding.
• GraphQL and Web Sockets.
• Knowledge of observability tools (e.g., Open Telemetry, Grafana).
• Familiarity with Infrastructure as Code (Terraform).
• Understanding of financial markets or trading systems.
• Contribution to open‑source projects.
• Awareness of security principles and Dev Sec Ops  practices.

UK – 135 Bishopsgate – London