Systems Engineer

Join to apply for the Systems Engineer role at Options Technology

Location:

Belfast
Salary:
Competitive

Join our team of expert engineers in the Engineering Team! Options is the largest global financial technology company headquartered in Belfast. We serve clients worldwide across networks in New York, Chicago, Toronto, London, Cambridge, Paris, Hong Kong, Tokyo, Singapore, and Auckland. At Options, our services are woven into the hottest trends in global tech, including high-performance Networking, Cloud, Security, and AI.

• Global travel – offices in New York, Chicago, Toronto, London, Belfast, Dublin and across Asia.
• Continuous career development opportunities – professional skill development and technical training.
• The chance to be part of a self‑sufficient, successful team – a fast‑paced environment with endless opportunities for innovation.
• Competitive salary – in addition to a competitive base, Options rewards employees with bonus incentives and employee benefits.

As a Systems Engineer, you will act as a key point of contact for clients, troubleshooting technical issues, configuring systems, and ensuring smooth operation across deployments. Your responsibilities will include regular communication with clients, mapping requirements to platform capabilities, and proactive monitoring of systems. Over time, you will develop in-depth knowledge of electronic trading environments and the tools used by world‑leading financial institutions.

• Configuring applications to meet customer requirements.
• Working with Unix to configure low‑latency servers to run P2D Analytics.
• Troubleshooting issues with application installations.
• Solving network problems using tools like P2D Analytics.
• Performing health checks and proactively monitoring installations.

• Electronic trading systems (Market Data and Order Entry).
• Experience using tcpdump and/or Wireshark.
• Understanding of Ethernet, IP, TCP, and UDP.
• Experience with Protocol Decoders.
• Manipulating Unix file systems (creating directories, editing files, etc).
• Checking the health of a system using tools like top, free, ps, etc.
• System tuning using kernel boot parameters and tools such as ethtool and sysctl.
• Experience in scripting (e.g., Bash, Python).
• Ability to read log files and act accordingly.
• Editing XML, JSON, and ENV files.
• Understanding of REST APIs and web‑based systems.

• Strong research, writing and communication skills.
• Ability to work in a fast‑paced and changeable environment.
• Exceptional organisational skills and strong attention to detail.
• Desire to travel and see the world.
• Ability to work independently and manage your own projects in a professional manner.
• A passion for innovation and the financial technology sector.
• Strong interpersonal skills.
• Project management skills and proven ability to manage own workload.

Please submit a CV and cover letter to the Systems Engineer position on the Options Careers Page at  In your CV, include a section on your hobbies and interests. In your cover letter, detail the role you are applying to, along with your availability. If you have any questions about this position, please contact