Senior Software Engineer

Senior Software Engineer

Temporary 69300 - 78000 £ / year (est.) Home office (partial)
C

At a Glance

  • Tasks: Design and build a cutting-edge trading platform for global commodities.
  • Company: Join a fast-paced trading tech company in London.
  • Benefits: Competitive pay of ~£950/day, flexible work environment, and growth opportunities.
  • Other info: Collaborative team culture with direct engagement between engineers and traders.
  • Why this job: Take ownership of innovative projects and make a real impact in trading technology.
  • 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.

Requirements

Essential

  • 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.

Highly Desirable

  • 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 employer: Cititec Talent Ltd

Join a forward-thinking financial services company that values innovation and collaboration, offering a dynamic work culture where your contributions directly impact exciting greenfield projects. With a hybrid working model based in Glasgow, you'll enjoy the flexibility of remote work while benefiting from professional growth opportunities and a supportive team environment that fosters creativity and technical excellence.

C

Contact Details:

Cititec Talent Ltd Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Software Engineer

Get Involved in Open-Source Projects

Diving into open-source projects is a brilliant way to showcase your skills and connect with other developers in the community. Not only will you beef up your GitHub profile but you might also catch the eye of someone at Cititec Talent Ltd who values hands-on experience over just theory.

Attend Local Tech Meetups

Tech meetups are gold mines for networking and discovering job opportunities, especially in the fast-paced world of software engineering. Check out local listings for events in your area and don’t shy away from introducing yourself. This could lead directly to a temporary position at Cititec Talent Ltd!

Showcase Your Work Online

With temporary roles, it’s all about standing out in a short space of time. Create a portfolio website where you highlight your projects and skills. Talk about your code, and provide links to your GitHub repositories. This will not only demonstrate your abilities but will also make it easier for recruiters at Cititec Talent Ltd to see what you bring to the table.

Leverage Temporary Job Boards

Don’t forget to check specialised job boards for temporary software development roles. Websites like We Work Remotely or Remote OK often list short-term gigs that can be a perfect fit. Apply directly through our website as well, making sure your application is sharp—temporary roles can move fast!

We think you need these skills to ace Senior Software Engineer

Execution Systems Development
Order Management Systems
C++
Rust
Python
Concurrency
Distributed Systems

Some tips for your application 🫡

Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at Cititec Talent Ltd!

Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!

Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!

Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for Senior Software Engineer at Cititec Talent Ltd! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!

How to prepare for a job interview at Cititec Talent Ltd

Nail the Technical Skills

For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that Cititec Talent Ltd uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!

Prepare for System Design Questions

Even for a temporary role, having a grasp of system design principles can be crucial. Be ready to discuss how you would architect a software solution, including discussing trade-offs, scalability, and performance considerations. Having examples from previous projects can really show off your analytical thinking.

Demonstrate Your Adaptability

Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at Cititec Talent Ltd that you can learn on the job and deliver results in a short timeframe!

Show Off Your Portfolio

Make sure to have a portfolio or GitHub ready showcasing your projects. Having tangible evidence of what you've done—be it personal projects, contributions to open-source, or previous work—can convey how capable you are. Tailor this for what might interest Cititec Talent Ltd, so it's relevant and sparks conversation during your interview.