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For Companies At a Glance
- 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: Challenging projects, skill development, and strong career progression opportunities.
- Why this job: Work on cutting-edge technology in a dynamic Front Office environment.
- Qualifications: Strong Java experience in performance-critical environments and knowledge of trading systems.
- Other info: Human-sized consultancy with close support and exciting engineering assignments.
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. Joining MARGO means working in demanding Front Office and Risk IT environments, while benefiting from a human-sized structure, close follow-up and tailor-made training paths.
Business Context
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). The environment is characterised by:
- 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
Role Overview
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
Technical Environment
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)
Required Experience & Skills
Essential
- 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
Valued (but not restrictive)
- 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 [email protected]
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
Java Developer – Front Office in London employer: Margo
Contact Detail:
Margo Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Java Developer – Front Office 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 Java development and trading systems. You never know who might have the inside scoop on job openings at MARGO!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best Java projects, especially those related to low-latency or real-time systems. This will give potential employers a taste of what you can bring to the table.
✨Tip Number 3
Prepare for technical interviews by brushing up on your multithreading and concurrency knowledge. Practice coding challenges that focus on performance optimisation. We want to see how you tackle real-world problems!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining MARGO and being part of our awesome team.
We think you need these skills to ace Java Developer – Front Office in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Java Developer role. Highlight your experience in performance-critical environments and any exposure to Front Office or Trading systems. We want to see how your skills match what we're looking for!
Showcase Your Projects: Include specific projects where you've designed and developed high-performance Java applications. Mention any real-time data processing work you've done, as this is key for us at MARGO. Let your achievements shine!
Be Clear and Concise: When writing your application, keep it clear and to the point. Use structured language to describe your experiences and skills. We appreciate straightforward communication, especially in a technical role like this one.
Apply Through Our Website: Don't forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. We can’t wait to hear from you!
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 multithreading and performance optimisation. Be ready to discuss specific projects where you've implemented these concepts, as they'll want to see your hands-on experience in action.
✨Understand the Trading Environment
Familiarise yourself with the 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 technical questions that dive deep into concurrency patterns and memory management. Practise explaining your thought process clearly and concisely, as communication is key in a collaborative environment like this one.
✨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.
