At a Glance
- Tasks: Design and build a cutting-edge trading platform for global commodities.
- Company: Join a dynamic team at a leading trading firm in London.
- Benefits: Competitive daily rate, flexible working, and a chance to shape the future of trading.
- Other info: Collaborative environment with opportunities for growth and learning.
- Why this job: Take ownership of innovative projects and make a real impact in the trading world.
- Qualifications: Experience in execution systems, strong coding skills in C++, Rust, or Python.
The predicted salary is between 69300 - 78000 € per year.
Our client is building the next generation of execution and order management (EMS/OMS) infrastructure for global commodities trading. You will join a small, fast‑moving engineering team designing and delivering a cloud‑native trading platform from the ground up, tightly integrated with risk, pricing, and market data systems to support high‑performance trading environments.
This is a senior, hands‑on role for an engineer who wants end‑to‑end ownership – from low‑level protocol integration through to distributed execution services and trader‑facing tooling.
What You’ll Be Doing- Design and build core components of a modern EMS/OMS platform, including order routing, order lifecycle management, venue connectivity, and execution analytics.
- Implement and maintain FIX protocol and venue‑specific integrations across exchanges, brokers, and liquidity providers in commodities markets.
- Develop low‑latency, distributed execution services with a strong focus on correctness, resilience, and performance under load.
- Collaborate closely with traders, quants, and risk engineers to translate trading workflows and execution strategies into robust production systems.
- Ensure seamless integration with risk systems, including pre‑trade checks, position tracking, and post‑trade processing.
- Proven experience building execution systems and/or order management systems in production.
- Strong systems engineering fundamentals, including concurrency, distributed systems, networking, performance, and correctness under pressure.
- Production experience in at least one of C++, Rust, or Python, with willingness to work across multiple languages.
- Demonstrated ability to deliver production systems with a strong bias towards shipping, iteration, and user feedback.
- Comfortable working in a collaborative environment with direct engagement between engineers, traders, and quants.
- Experience working in cloud‑native environments, particularly Kubernetes‑based architectures.
- Familiarity with distributed data and event‑driven systems (e.g. Kafka‑style messaging patterns).
- Experience with observability, monitoring, testing, and production incident response in live systems.
- Experience in commodities markets (energy, metals, agriculture, freight) or other complex, multi‑venue asset classes.
- Deep understanding of the FIX protocol, including session handling, message customisation, and venue‑specific behaviour.
- Experience with algorithmic trading systems, smart order routing, or execution algorithm development.
- Exposure to real‑time risk systems, including pre‑trade controls and position/PnL infrastructure.
- Experience with columnar databases such as ClickHouse.
Senior Software Engineer – Execution & Order Management Systems in London employer: Cititec
Join a dynamic and innovative team in London, where as a Senior Software Engineer, you will have the opportunity to shape the future of execution and order management systems for global commodities trading. Our collaborative work culture fosters direct engagement with traders and quants, ensuring that your contributions are valued and impactful. With a focus on employee growth and development, we offer a stimulating environment that encourages continuous learning and the chance to work on cutting-edge cloud-native technologies.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer – Execution & Order Management Systems in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the trading and tech space. Attend meetups or webinars related to execution and order management systems. You never know who might have the inside scoop on job openings!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving C++, Rust, or Python. Highlight any experience with cloud-native environments or distributed systems. This will make you stand out when chatting with potential employers.
✨Tip Number 3
Prepare for technical interviews by brushing up on your systems engineering fundamentals. Be ready to discuss concurrency, performance under load, and your experience with FIX protocol. Practising coding challenges can also help you feel more confident.
✨Tip Number 4
Don’t forget to apply through our website! We’ve got loads of opportunities that might be perfect for you. Plus, it’s a great way to ensure your application gets seen by the right people in our team.
We think you need these skills to ace Senior Software Engineer – Execution & Order Management Systems in London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the role of Senior Software Engineer. Highlight your experience with execution and order management systems, and don’t forget to mention any relevant projects that showcase your skills in C++, Rust, or Python.
Showcase Your Projects:Include specific examples of projects where you've built or contributed to EMS/OMS platforms. We love seeing how you’ve tackled challenges like low-latency services or FIX protocol integrations, so make those stand out!
Be Clear and Concise:When writing your application, keep it clear and concise. We appreciate straightforward communication, so avoid jargon unless it’s necessary. Make sure your passion for trading technology shines through!
Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity in our fast-moving engineering team.
How to prepare for a job interview at Cititec
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, especially C++, Rust, and Python. Brush up on your knowledge of cloud-native environments and Kubernetes, as these will likely come up during technical discussions.
✨Understand the Trading Domain
Familiarise yourself with execution and order management systems, particularly in commodities trading. Knowing the ins and outs of the FIX protocol and how it integrates with trading workflows will give you a significant edge in the interview.
✨Showcase Your Problem-Solving Skills
Be prepared to discuss past projects where you’ve tackled complex problems, especially those involving distributed systems and low-latency services. Use specific examples to demonstrate your ability to deliver robust production systems under pressure.
✨Engage with the Team
Since this role involves close collaboration with traders and quants, be ready to discuss how you’ve worked in team settings before. Highlight your communication skills and your approach to gathering user feedback to improve systems, as this will resonate well with the interviewers.
