C++ Trading Platform Developer

C++ Trading Platform Developer

Full-Time 160000 - 200000 £ / year (est.) On-site
Westren Capital Ltd.

At a Glance

  • Tasks: Build and maintain a cutting-edge trading platform using high-performance C++.
  • Company: Join Westren Capital, a leading proprietary trading firm in London.
  • Benefits: Competitive salary, dynamic work environment, and opportunities for career progression.
  • Other info: Collaborative teams focused on innovation and problem-solving.
  • Why this job: Make a real impact by developing systems that drive trading decisions.
  • Qualifications: Strong C++ skills and experience in low-latency systems required.

The predicted salary is between 160000 - 200000 £ per year.

Westren Capital is a London-based proprietary trading firm specialising in digital asset markets. This role sits within our Trading Technology team, building the platform our trading desks depend on every day.

Our work sits at the intersection of statistical modelling, market microstructure, and engineering. The aim is straightforward, if not easy: extract durable signals from noisy data and convert them into scalable, risk-aware strategies. That requires intellectual honesty, a tolerance for ambiguity, and a willingness to discard ideas that do not survive contact with reality.

We operate in small, highly collaborative teams where research, engineering, and trading are tightly coupled. Outcomes matter, not narratives. Compensation and progression reflect that directly.

Responsibilities

  • Build and maintain core components of the trading platform, including order management, market data handling, and position tracking.
  • Write high-performance, low-latency C++ code that sits directly in the path between a decision and an executed trade.
  • Work closely with traders and quants to understand what the platform actually needs to do, not what it was originally spec'd to do.
  • Debug and resolve production issues on live trading systems, where downtime has an immediate, measurable cost.
  • Improve platform reliability, observability, and performance on an ongoing basis, not just when something breaks.
  • Contribute to architectural decisions as the platform scales across more venues, asset types, and strategies.

Requirements

  • Strong C++ skills, with real experience building low-latency or high-throughput systems, ideally in a trading or financial context.
  • Solid understanding of Linux systems programming, concurrency, and network programming.
  • Experience with market data handling, order management systems, or exchange connectivity is a strong advantage.
  • Comfortable working directly with traders and researchers, translating fuzzy requirements into precise, working systems.
  • Methodical debugging skills; you find the actual cause of a problem, not just a plausible one.
  • Python proficiency for tooling, testing, and scripting alongside core C++ work.

C++ Trading Platform Developer employer: Westren Capital Ltd.

Westren Capital Ltd. is an attractive employer due to its focus on collaboration and innovation in the digital asset space. The company fosters a culture of continuous learning and provides opportunities for employees to work with cutting-edge technology and data analysis. Team members benefit from a supportive environment that values intellectual honesty and practical outcomes.

Westren Capital Ltd.

Contact Details:

Westren Capital Ltd. Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land C++ Trading Platform Developer

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We think you need these skills to ace C++ Trading Platform Developer

C++
Low-Latency Systems
High-Throughput Systems
Linux Systems Programming
Concurrency
Network Programming
Market Data Handling

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 Westren Capital Ltd..

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Westren Capital Ltd. 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 Westren Capital Ltd.

✨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 Westren Capital Ltd. 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.