Senior Software Engineer (Back End)

Senior Software Engineer (Back End)

Full-Time 63000 - 77000 £ / year (est.) No working from home possible
ICAP

At a Glance

  • Tasks: Design and develop robust server-side applications for high-volume data environments.
  • Company: Join TP ICAP, a leading global market infrastructure provider with a collaborative culture.
  • Benefits: Enjoy competitive salary, health benefits, remote work options, and professional development opportunities.
  • Other info: Be part of a diverse team driving innovation and continuous improvement.
  • Why this job: Shape the future of trading technology and make a real impact in a dynamic environment.
  • Qualifications: Experience in building latency-sensitive trading systems and strong problem-solving skills required.

The predicted salary is between 63000 - 77000 £ per year.

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.

Founded in London in 1866, the Group operates from more than 60 offices in 27 countries.

We are 5,200 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

As a Senior Back-End Engineer, you will design, develop, and maintain robust server-side applications and APIs that support high-volume, data-intensive environments.

You will play a key role in shaping technical architecture, ensuring system reliability, and driving best practices in software engineering.

This position requires strong problem‑solving skills, deep technical expertise, and the ability to collaborate effectively with cross‑functional teams.

  • Role Responsibilities
  • Lead by example as a hands ‑ on engineer, working closely with Architects, Principal Engineers, and Trading SMEs to design, build, review, test, and deliver mission‑critical, high‑performance systems end‑to‑end.
  • Own engineering deliverables throughout the full lifecycle, ensuring performance, scalability, resilience, and alignment with engineering best practices.
  • Mentor engineers, elevate code quality standards, and foster a culture of technical excellence.
  • Drive innovation through POCs, technical evaluations, and continuous improvement initiatives.
  • Leverage AI‑assisted tools to improve development efficiencyand help shaping our AI journey
  • Communicate progress proactively, highlighting risks and removing delivery impediments.

Experience / Competences

Essential

  • Significant years of hands‑on experience building and supporting latency‑sensitive front‑office trading systems (OMS, Matching, Execution).
  • Strong background in designing and maintaining distributed, event‑driven, cloud‑native applications.
  • Comprehensive SDLC experience across design, development, QA, deployment, and production support.
  • Ability to balance rapid delivery with architectural rigour and long‑term maintainability.
  • Proven problem‑solving capabilities and ability to validate ideas through POCs.
  • Ability to engage effectively with traders, quants, and other business stakeholders.
  • Desired
  • Domain experience in Credit or Fixed Income.
  • Expertise in modern . NET technologies and C# (Java or similar OO languages considered).
  • Strong relational database design and optimisation skills (MSSQL, My SQL).
  • Deep understanding of low‑latency engineering, concurrency, multithreading, and performance optimisation.
  • Experience implementing observability (metrics, tracing, logging) for distributed systems.
  • Experience with CI/CD pipelines, containerisation (Docker), and orchestration (Kubernetes/EKS).
  • Experience designing APIs (REST, Graph QL).
  • Knowledge of distributed messaging and caching technologies (e. g., Solace, Redis, or similar).
  • Understanding of FIX protocol and FIX message handling.
  • Hands‑on experience with AWS, microservices, and serverless patterns.
  • Understanding of TDD, BDD, or similar testing methodologies.

Role Band & Level

  • Manager, 6
  • 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
  • #J-18808-Ljbffr

Senior Software Engineer (Back End) employer: ICAP

At TP ICAP, we pride ourselves on being an exceptional employer, offering a dynamic and collaborative work environment in the heart of Belfast. Our commitment to innovation and continuous improvement empowers our employees to take ownership of their projects while fostering professional growth through mentorship and knowledge sharing. Join us to work with cutting-edge technology that shapes global financial markets, all while enjoying a culture that values creativity and teamwork.

ICAP

Contact Details:

ICAP Recruitment Team

We think you need these skills to ace Senior Software Engineer (Back End)

Back-End Development
API Design (REST, GraphQL)
C# or Java (Object-Oriented Programming)
Distributed Systems
Cloud-Native Applications
Low-Latency Engineering
Concurrency and Multithreading