Solace Middleware Engineer - London - Inside IR35

Solace Middleware Engineer

2/3 days onsite in London

£450-500 inside IR35

6 months

We're looking for a Solace Middleware Engineer to support a low-latency electronic trading environment within a leading investment banking setting.

This is a hands-on role focused on mission-critical messaging infrastructure across FX and Fixed Income markets.

Key Responsibilities

• Own and support Solace PubSub+ messaging infrastructure
• Design and implement low-latency messaging patterns (pub/sub, guaranteed messaging, request/reply)
• Configure and optimise brokers, VPNs, queues, and topic hierarchies
• Drive performance tuning for ultra-low latency trading systems
• Integrate trading applications with messaging architecture
• Monitor and troubleshoot real-time message flows and latency issues
• Support application onboarding, defining messaging standards and connectivity
• Automate operational tasks using Python/scripting

Key Requirements

• Strong experience with Solace (essential)
• Proven background in middleware messaging (e.g. Solace, TIBCO, MQ)
• Experience in investment banking / electronic trading environments
• Knowledge of FX and/or Fixed Income trading systems
• Strong Linux + networking fundamentals (low-latency systems, multicast preferred)
• Scripting skills (Python or similar)
• Experience working at application / platform engineering level
• Architecture exposure within distributed systems

Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law.

Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers.

By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website.