Java / Rust Developer
Job Title: Java/Rust Developer - Low Latency Trading Platform
Location: Paris, France (3 days onsite, 2 days remote)
Contract Type: Freelance - 12 Months
Start Date: ASAP
Languages: French & English required
About the Role
We are seeking a highly skilled Java/Rust Developer to join a cutting-edge trading technology team in Paris. This is a freelance contract role focused on performance optimisation for a low latency trading platform. You will play a key role in the redesign of risk systems, enabling real-time visibility of trading positions across the platform.
Key Responsibilities
- Design and implement high-performance, low-latency components in Java and/or Rust.
- Collaborate with quant and trading teams to ensure real-time risk and position data is accurate and performing.
- Contribute to the re-architecture of risk systems to support real-time trading insights.
- Optimise system performance, memory usage, and throughput.
- Work closely with DevOps and infrastructure teams to ensure smooth deployment and monitoring.
- Participate in code reviews, performance testing, and continuous improvement initiatives.
Required Skills & Experience
- Strong experience in Java and/or Rust in performance-critical environments.
- Strong performance experience
- Deep understanding of multithreading, concurrency, and memory management.
- Experience with real-time data processing and risk systems is a strong plus.
- Comfortable working in a hybrid environment (3 days onsite in Paris).
- Fluent in French and English
Nice to Have
- Background in financial markets, especially trading or risk management.
- Familiarity with networking protocols, Linux tuning, and performance profiling tools.
Please apply today if you are interested.
FAQs
Congratulations, we understand that taking the time to apply is a big step. When you apply, your details go directly to the consultant who is sourcing talent. Due to demand, we may not get back to all applicants that have applied. However, we always keep your resume and details on file so when we see similar roles or see skillsets that drive growth in organizations, we will always reach out to discuss opportunities.
Yes. Even if this role isn’t a perfect match, applying allows us to understand your expertise and ambitions, ensuring you're on our radar for the right opportunity when it arises.
We also work in several ways, firstly we advertise our roles available on our site, however, often due to confidentiality we may not post all. We also work with clients who are more focused on skills and understanding what is required to future-proof their business.
That's why we recommend registering your resume so you can be considered for roles that have yet to be created.
Yes, we help with resume and interview preparation. From customized support on how to optimize your resume to interview preparation and compensation negotiations, we advocate for you throughout your next career move.