Operations Engineer

Location:

London, Hybrid

Purpose-built for frictionless bilateral trading, Reactive Markets is transparently the fastest, most cost effective, flexible and scalable trading technology network on the market.

Reactive Markets provides ultra low latency trading technology that connects its clients to all their bilateral liquidity relationships, across all asset classes. Available seamlessly via UI, API or any EMS, OMS or Pricing Engine, clients benefit from flexibility, ultra low latency connectivity and exceptional liquidity access. Our high performance network is trusted by 35+ of the leading bank and non-bank liquidity providers.

Our dynamic and rapidly expanding team is shaping the future of multi-asset trading technology, guided by a strong, collaborative culture. We listen to our people and provide flexibility, offering office (in London), hybrid and remote working, as well as a competitive range of benefits.

As an Operations Engineer, you will play a crucial role in ensuring the seamless operation and performance of our platform within a fast‑paced, high‑growth start‑up environment. Your primary responsibility will be to monitor our technical infrastructure, manage client onboardings, including FIX integrations, to deliver reliable and efficient trading experiences for our clients. With a focus on maintaining high availability, monitoring system performance, and responding to technical issues, you will contribute to our mission of providing the market‑leading multi‑asset trading technology.

Successful candidates will have a track‑record in service delivery across clients, stakeholders and third‑party vendors and will be joining us at an exciting time for our business as we expand into other asset classes bringing new challenges.

We are offering a great benefits package including 30 days annual leave plus additional days for tenure, a private health insurance scheme including medical and mental health cover, dental and optical cashback and health related discounts, a cycle to work scheme, company life insurance, 4% contributory pension and some great socials and offsites. We regularly review our benefits package to make sure our people have the best possible experience working for us.

• Technical Environment Monitoring:
  • Monitor system performance, triage and where applicable troubleshoot technical issues, ensuring these issues are captured for review and where appropriate, remedy.
  • Collaborate with the operations and the development teams to ensure seamless integration of new features and enhancements while maintaining system stability.
  • Manage inbound client queries, specifically those that relate to a disruption in service or inability to either receive market data or trade.
  • Get up to speed on the system topology and internal processes to ensure a sound understanding of the platform and administration tasks.
  • Proactively monitor and be available to respond to emails, telephone, alerting channels and other conversations ongoing throughout the trading day.
• New client setups
  • Assist with the onboarding of new client accounts and users, including setup on the platform and the provisioning of liquidity across all appropriate venues.
  • Ensure the communication between external clients in respect of any new setup or enhancement is conveyed in a clear and concise manner and where appropriate, keep the business development team updated.
• FIX Integrations and Connectivity:
  • Assist with FIX integrations for external clients, liquidity providers, and partners, ensuring a smooth and efficient onboarding.
  • Maintain up‑to‑date documentation of onboarding processes, configurations, and troubleshooting procedures.
  • Support the configuration and maintenance of our trading platform's environment, including FIX integrations, connectivity, and any post‑trade related workflows.
  • Work closely with our clients' external vendors to capture requirements upfront, help to manage connectivity and system configuration required to support the business line(s).
  • Monitor and validate FIX message flows to help identify and resolve any issues related to trade execution, order routing, and market…