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For Companies At a Glance
- Tasks: Own and enhance a high-performance Python trading application with real-time data processing.
- Company: Dynamic tech company focused on trading solutions with a collaborative team culture.
- Benefits: Competitive salary, performance bonuses, mostly remote work, and significant ownership of projects.
- Why this job: Make a real impact on a live system while working with cutting-edge technology.
- Qualifications: 5+ years of Python experience and a strong background in low-latency systems.
- Other info: Join a lean team where your contributions directly shape the future of our platform.
The predicted salary is between 36000 - 60000 ÂŁ per year.
We’re expanding our engineering team and hiring a Senior Python Software Engineer to help own and develop an established trading-related application. The system runs in production, processes high-frequency real-time data, and needs careful performance engineering and disciplined testing to keep latency and reliability where they should be. You’ll take meaningful ownership day-to-day, partnering closely with the founder and the engineering team to prioritise work, ship improvements quickly, and keep the system fast, reliable, and correct.
Location: UK-based preferred
Working style: Mostly remote, occasional in-person days for planning/coordination
Support: Availability during core market hours when needed
What You’ll Do
- Own and improve a production Python codebase that runs during market hours.
- Build and optimise real-time data pipelines (throughput, p50/p99 latency, jitter).
- Do profiling-driven performance work across ingestion → compute → messaging → consumers.
- Improve reliability: freshness/staleness handling, safe degradation, back pressure, fault isolation.
- Strengthen “developer leverage”: replay/simulation tools, regression tests, and debugging tooling.
- Work with cloud infrastructure, deployment, monitoring, and incident response.
- Collaborate directly with the founder and engineering team on architecture and roadmap.
Essential Skills
- 5+ years professional Python experience; you’ve shipped and owned production systems.
- Built/owned a real-time / low-latency system (not batch ETL) with measurable performance goals.
- Strong understanding of async + multiprocessing tradeoffs and performance profiling.
- Comfortable owning an existing codebase: refactors, tests, architecture improvements.
- Experience with messaging / event-driven systems and strong API/schema discipline.
- Production ownership mindset: incidents, monitoring, and fast debugging when it matters.
- UK-based preferred and able to support core market hours when required.
Desirable Skills
- Experience with trading, market data, or execution systems.
- Familiarity with Interactive Brokers TWS or other brokerage APIs.
- Experience designing safety constraints/guardrails in automated systems.
What We Offer
- Competitive salary (negotiable) + performance-related bonus.
- Mostly remote, with some in-office collaboration days for coordination and planning.
- Lean environment, direct impact on a live system.
- High ownership and influence over system design and roadmap.
Senior Python Engineer in Doncaster employer: Beamost Ltd
Contact Detail:
Beamost Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Python Engineer in Doncaster
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech world, especially those who work in trading or finance. A friendly chat can lead to insider info about job openings that aren't even advertised yet.
✨Tip Number 2
Show off your skills! Create a GitHub repository showcasing your Python projects, especially any real-time systems you've worked on. This gives potential employers a taste of what you can do and how you tackle performance challenges.
✨Tip Number 3
Prepare for interviews by brushing up on your async and multiprocessing knowledge. Be ready to discuss your past experiences with low-latency systems and how you’ve handled performance profiling. We want to see your thought process!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team and making an impact.
We think you need these skills to ace Senior Python Engineer in Doncaster
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Python and any real-time systems you've worked on. We want to see how your skills align with our needs, so don’t be shy about showcasing relevant projects!
Craft a Compelling Cover Letter: Your cover letter is your chance to tell us why you’re the perfect fit for this role. Share your passion for performance engineering and how you’ve tackled challenges in previous roles. Keep it engaging and personal!
Showcase Your Problem-Solving Skills: In your application, give examples of how you've improved system performance or reliability in past projects. We love seeing concrete results, so include metrics if you can – it helps us understand your impact!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Beamost Ltd
✨Know Your Python Inside Out
Make sure you brush up on your Python skills, especially around performance profiling and async programming. Be ready to discuss specific projects where you've optimised code or improved latency in real-time systems.
✨Showcase Your Production Experience
Prepare examples of how you've owned and maintained production systems. Highlight any incidents you've managed and how you ensured reliability and quick debugging during market hours.
✨Understand the Trading Landscape
Familiarise yourself with trading systems and market data. If you have experience with brokerage APIs like Interactive Brokers TWS, be sure to mention it. This knowledge will show you're not just a techie but also understand the business context.
✨Be Ready for Technical Challenges
Expect to tackle some technical questions or coding challenges during the interview. Practice solving problems related to low-latency systems and be prepared to discuss your thought process and decision-making.
