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- Tasks: Design and develop high-performance Java applications for real-time trading systems.
- Company: Join MARGO, a tech-native consultancy in the financial services industry.
- Benefits: Access to challenging projects, skill development, and career progression.
- Why this job: Work on cutting-edge technology in a dynamic Front Office environment.
- Qualifications: Strong Java experience in performance-critical environments required.
- Other info: Human-sized consultancy with close support and exciting missions.
The predicted salary is between 36000 - 60000 £ per year.
Join MARGO in the UK (London) – Perm & Contracting Opportunity. MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance, robustness and scalability are critical: low latency systems, real-time data processing, distributed architectures and high-volume flows.
You will join the Front Office / Trading IT environment of one of our tier-1 investment banking partners. The teams design and maintain mission-critical Java systems supporting electronic trading activities across multiple asset classes (e.g. Equities, Fixed Income, Commodities, FX, Derivatives).
- Real-time and event-driven architectures
- High performance and low-latency constraints
- Close interaction with trading, quantitative and risk teams
- Short delivery cycles and high engineering standards
We are looking for an experienced Java Developer to work on real-time trading and risk systems. The role is primarily technical, focused on software engineering excellence rather than business analysis. Candidates are expected to have prior exposure to Front Office, Trading or Risk environments, regardless of the underlying asset class.
Key Responsibilities- Design & Development
- Design, develop and maintain high-performance Java applications
- Work on real-time data processing (market data, pricing, orders, analytics)
- Implement multithreading and concurrency patterns adapted to performance-critical systems
- Participate in system design, architecture discussions and technical specifications
- Continuously optimise performance (latency, throughput, memory, GC behaviour)
- Engineering & Delivery
- Contribute to the full software lifecycle: design, development, testing and release
- Produce clean, maintainable and well-tested code
- Participate in sprint planning, estimations and technical reviews
- Collaborate closely with developers, quant and infrastructure teams
- Production & Support
- Provide 3rd line support on production systems when required
- Participate in production releases (including occasional out-of-hours interventions)
- Contribute to system stability, monitoring and incident prevention
- Core Technologies
- Java (expert level)
- Multithreading & concurrency
- Performance optimisation & low latency techniques
- Garbage Collection awareness
- Linux / UNIX environments
- Distributed systems and messaging architectures
- Performance monitoring and profiling tools
- Valued Technical Exposure
- Event-driven or real-time systems
- Messaging middleware (Kafka, Solace or equivalent)
- FIX or other market connectivity protocols
- Networking fundamentals (TCP/IP, multicast)
- Strong experience as a Java Developer in performance-critical environments
- Proven background in low-latency or high-throughput systems
- Solid understanding of concurrency, threading and memory management
- Experience working in Front Office, Trading or Risk IT environments
- Comfortable working in Linux production environments
- Clear communication and structured problem-solving skills
- Exposure to one or more asset classes (Equities, Fixed Income, Commodities, FX, Derivatives)
- Experience in trading, pricing, risk or market data systems
Why Join MARGO
- Access to multi-asset Front Office environments
- Highly technical and challenging engineering assignments
- Strong emphasis on skill development and long-term career progression
- Human-sized consultancy with close support and high-quality missions
Please note - We do not offer visa sponsorship for this position.
Interested? Motivated? Apply on our website or at staff.uk@margo.com
Java Developer – Front Office / Trading Systems in London employer: Margo
Contact Detail:
Margo Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Java Developer – Front Office / Trading Systems in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the finance and tech sectors. Attend meetups or webinars related to trading systems and Java development. You never know who might have the inside scoop on job openings!
✨Tip Number 2
Show off your skills! Create a GitHub profile showcasing your projects, especially those related to low-latency systems or real-time data processing. This gives potential employers a taste of what you can do before they even meet you.
✨Tip Number 3
Prepare for technical interviews by brushing up on your Java knowledge and performance optimisation techniques. Practice coding challenges that focus on multithreading and concurrency patterns. We want you to shine when it’s time to show what you’ve got!
✨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, we love seeing candidates who are proactive about their job search!
We think you need these skills to ace Java Developer – Front Office / Trading Systems in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience in Java development, especially in performance-critical environments. We want to see how your skills align with the demands of Front Office and Trading systems.
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about working in trading systems and how your background makes you a perfect fit for MARGO. Keep it concise but impactful!
Showcase Relevant Projects: If you've worked on any real-time data processing or low-latency systems, make sure to mention them. We love seeing concrete examples of your work that demonstrate your technical prowess and problem-solving skills.
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’re considered for the role. Don’t miss out on this opportunity!
How to prepare for a job interview at Margo
✨Know Your Java Inside Out
Make sure you brush up on your Java skills, especially around performance optimisation and multithreading. Be ready to discuss specific projects where you've implemented these concepts, as they'll want to see your practical experience in action.
✨Understand the Trading Environment
Familiarise yourself with Front Office and Trading systems. Knowing how real-time data processing works and being able to talk about low-latency constraints will show that you understand the demands of the role and can hit the ground running.
✨Prepare for Technical Questions
Expect deep technical questions related to concurrency, memory management, and system design. Practise explaining your thought process clearly and concisely, as communication is key in a collaborative environment like this.
✨Show Your Problem-Solving Skills
Be ready to tackle hypothetical scenarios or coding challenges during the interview. They’ll be looking for structured problem-solving skills, so think aloud as you work through your approach to demonstrate your analytical thinking.
