Java Consultant in London

Java Consultant in London

London Freelance 60000 - 80000 € / year (est.) No home office possible
LinkedIn

At a Glance

  • Tasks: Lead the design and build of scalable trading systems using Java.
  • Company: High-impact investment engineering team in a dynamic trading environment.
  • Benefits: Highly competitive day rate and hands-on leadership role.
  • Other info: Opportunity to influence architecture and mentor engineers in a fast-paced setting.
  • Why this job: Make a real impact on trading technology while collaborating with top professionals.
  • Qualifications: 10+ years in Java engineering, experience with trading systems, and strong architectural skills.

The predicted salary is between 60000 - 80000 € per year.

NEW JOB ALERT – Lead Java Contractor

Java / Distributed Systems / Event-Driven Architecture – Trading & Portfolio Tech

10+ years building high-performance, data-intensive trading systems

London (front-office, high-impact engineering environment)

Highly competitive day rate

Highlights:

  • Lead the design and build of scalable trading & portfolio management systems for the Credit desk
  • Work directly with portfolio managers and traders to deliver real-time, business-critical technology
  • Architect event-driven, distributed systems with strong focus on performance, resilience, and observability
  • Drive technical direction across microservices, data streaming, and system design in a fast-moving environment

The Role:

Join a high-calibre Investment Engineering team embedded on the trading floor, delivering core infrastructure that underpins complex credit investment strategies. This is a hands-on leadership role combining deep backend engineering with architectural ownership and close collaboration with senior investment stakeholders.

What You'll Be Doing:

  • Own the full development lifecycle – from architecture and design through to production delivery
  • Build and scale Java-based systems supporting trading, analytics, and execution workflows
  • Design high-throughput, event-driven platforms using modern streaming technologies
  • Partner with traders and PMs to translate complex investment processes into robust systems
  • Lead best practices across performance optimisation, system reliability, and maintainability

What We're Looking For:

  • Strong Java engineering background with experience in trading or market-facing systems
  • Deep understanding of distributed systems, microservices, and data streaming using Aeron
  • Proven experience building production-grade, fault-tolerant systems in high-performance environments
  • Expertise in event-driven architecture and handling real-time data pipelines
  • Ability to influence architecture, mentor engineers, and operate at a senior technical level

Java Consultant in London employer: LinkedIn

As a leading employer in the financial technology sector, we offer an exceptional opportunity for Java Consultants to thrive in a dynamic and high-impact engineering environment located in London. Our culture fosters innovation and collaboration, providing employees with access to cutting-edge projects and the chance to work closely with portfolio managers and traders. With a strong emphasis on professional growth, we support our team members in developing their skills and advancing their careers while enjoying a highly competitive compensation package.

LinkedIn

Contact Detail:

LinkedIn Recruiting Team

StudySmarter Expert Advice🀫

We think this is how you could land Java Consultant 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 portfolio showcasing your past projects, especially those involving high-performance systems or event-driven architecture. This will give potential employers a taste of what you can bring to their team.

✨Tip Number 3

Prepare for interviews by brushing up on your technical knowledge. Be ready to discuss your experience with distributed systems and microservices. Practise explaining complex concepts in simple terms, as you'll need to communicate effectively with traders and PMs.

✨Tip Number 4

Don't forget to apply through our website! We have loads of opportunities that might be perfect for you. Plus, applying directly shows your enthusiasm and commitment to joining our team.

We think you need these skills to ace Java Consultant in London

Java
Distributed Systems
Event-Driven Architecture
High-Performance Computing
Microservices
Data Streaming
Performance Optimisation

Some tips for your application 🫑

Tailor Your CV:Make sure your CV is tailored to the Java Consultant role. Highlight your experience with trading systems, distributed architectures, and any relevant technologies. We want to see how your background aligns with what we're looking for!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your skills can contribute to our team. Be sure to mention your experience in high-performance environments and your ability to lead technical direction.

Showcase Your Projects:If you've worked on any relevant projects, make sure to include them in your application. We love seeing real-world examples of your work, especially if they involve event-driven architecture or microservices. It helps us understand your hands-on experience!

Apply Through Our Website:We encourage you to apply through our website for the best chance of getting noticed. It streamlines the process for us and ensures your application gets to the right people. Plus, it shows you're keen on joining our team!

How to prepare for a job interview at LinkedIn

✨Know Your Java Inside Out

Make sure you brush up on your Java skills before the interview. Be prepared to discuss your experience with high-performance, data-intensive systems and be ready to dive deep into technical details about distributed systems and event-driven architecture.

✨Understand the Business Context

Since you'll be working closely with portfolio managers and traders, it’s crucial to understand their needs and how technology supports trading strategies. Research the company’s trading processes and think about how your technical skills can enhance their operations.

✨Showcase Your Leadership Skills

This role involves leading the design and build of systems, so be ready to share examples of how you've influenced architecture decisions or mentored other engineers in past roles. Highlight your ability to drive best practices in performance optimisation and system reliability.

✨Prepare for Scenario-Based Questions

Expect questions that assess your problem-solving skills in real-time scenarios. Think about challenges you've faced in building fault-tolerant systems and how you approached them. Use the STAR method (Situation, Task, Action, Result) to structure your answers effectively.