At a Glance
- Tasks: Design and develop high-performance Python applications for high-frequency trading.
- Company: Join a stealthy, tech-driven proprietary trading firm in London.
- Benefits: Earn up to £180k plus bonuses and enjoy hybrid working.
- Other info: Collaborative environment with opportunities for growth and ownership.
- Why this job: Make a real impact in finance with cutting-edge technology and innovative projects.
- Qualifications: 4+ years of Python experience and a strong software engineering background.
The predicted salary is between 180000 - 180000 £ per year.
Client: Stealth Prop Trading firm (HFT)
Experience Level: 5+ years
About the Client
Some firms build software.
Others build technology that competes directly with the world's fastest markets.
Our client is a highly successful, technology-first proprietary trading firm operating firmly under the radar.
With no external investors, no clients to service, and no unnecessary layers of bureaucracy, every engineering decision is driven by one question: does it make us faster, smarter, or more competitive?
Trading across global markets, they develop ultra-low latency systems, sophisticated quantitative infrastructure, and high-performance trading platforms that process enormous volumes of market data in real time.
Engineering sits at the centre of everything they do.
Developers work shoulder-to-shoulder with traders and quantitative researchers, solving some of the most technically demanding problems in finance while enjoying the freedom to experiment, innovate, and continually push technological boundaries.
If you're passionate about building exceptional software and want to work somewhere where engineering excellence genuinely matters, this is the kind of opportunity that rarely reaches the open market.
The Role
You'll be building the software that powers a modern high-frequency trading business, working across both front and middle office systems.
From real-time trading infrastructure and market data services to risk platforms, analytics, and operational tooling, you'll have the opportunity to contribute across the entire trading lifecycle.
You'll work directly alongside traders, quantitative researchers, and experienced software engineers to build highly performant, production-critical systems where latency, scalability, and reliability genuinely matter.
There are no rigid team boundaries or endless approval chains—just talented engineers solving challenging problems together.
If you enjoy ownership, variety, and writing software that has an immediate and measurable impact, you'll feel right at home.
Key Responsibilities
- Design, develop, and maintain production-grade Python applications supporting high-frequency trading operations.
- Build scalable services for market data processing, trading workflows, and middle-office infrastructure.
- Collaborate closely with traders and quantitative researchers to transform ideas into robust production systems.
- Optimise applications for performance, scalability, and reliability in demanding production environments.
- Develop APIs, internal tooling, and automation that improve the efficiency of the wider engineering organisation.
- Build resilient distributed systems capable of handling high-throughput financial data.
- Improve observability through monitoring, logging, testing, and automated deployment.
- Contribute to architectural decisions while continually raising engineering standards across the business.
- Required Skills & Experience
- 4 + years of commercial Python development experience.
- Previous experience working within capital markets, electronic trading, investment banking, hedge funds, market makers, exchanges, or proprietary trading firms.
- Strong software engineering fundamentals with a passion for writing clean, maintainable code.
- Experience building scalable backend systems or distributed applications.
- Excellent understanding of data structures, concurrency, and performance optimisation.
- Comfortable working on Linux-based production environments.
- Experience working with relational databases and writing efficient SQL.
- An inquisitive mindset and genuine enthusiasm for solving technically challenging problems.
- Strong Academic background - Degree from a top world institution
- Nice to Have
- Experience working with trading systems, order management, or market data platforms.
- Knowledge of financial markets, market microstructure, or electronic execution.
- Experience with messaging technologies such as Kafka or Rabbit MQ.
- Familiarity with Docker, Kubernetes, and modern cloud platforms.
- Exposure to asynchronous Python, multiprocessing, or high-performance computing.
- Experience with C++, Rust, or another systems programming language.
- Understanding of risk systems, pricing, or quantitative research infrastructure.
- #J-18808-Ljbffr
Senior Python Developer - Up to £180,000 P/A + Bonus - London employer: Hunter Bond
Hunter Bond is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. With a strong focus on employee growth and development, team members benefit from competitive compensation, comprehensive benefits, and the opportunity to work alongside a talented, low-ego team dedicated to pushing the boundaries of technology in trading systems.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Python Developer - Up to £180,000 P/A + Bonus - London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Hunter Bond or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Hunter Bond.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Hunter Bond.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Hunter Bond that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Python Developer - Up to £180,000 P/A + Bonus - London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Hunter Bond.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Hunter Bond and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Hunter Bond
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Hunter Bond uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
