Overview
In this mid-to-senior role, you will primarily develop Java backend services while owning straightforward Python ETL/ingestion tasks into AWS and PostgreSQL. You’ll join a growing data-focused team building tooling for the wider firm and improving platform reliability. You’ll work across APIs, batch jobs, and data pipelines to support data-driven decisions in a fast-paced trading environment. This is an opportunity to shape data infrastructure in a lean, high-impact team with clear growth potential.
Pay / Benefits
- competitive base salary
- performance-based bonus
- in-office in City of London
- opportunity to grow with a high-performing market maker
- data-focused role with broad scope
- strong growth runway
Responsibilities
- Build and enhance Java backend services (APIs, batch jobs, integrations)
- Write clean, testable code with strong engineering discipline (testing, code reviews, debugging, production support)
- Maintain and extend Python-based ingestion/ETL
- Work with PostgreSQL (schemas, migrations, performant queries, data validation)
- Improve service reliability through monitoring/logging and CI/CD deployments
Key requirements
- 10+ years of experience building production systems (or equivalent)
- Strong Java fundamentals (OO design, APIs/services, concurrency, testing)
- Some UI development
- Comfortable with SQL/PostgreSQL
- Some Python experience (ETL/ingestion)
- Java
- Python
- AWS
- PostgreSQL
- Git
- CI/CD
Java Developer – Data in London employer: Quant Capital
At Quant Capital, we pride ourselves on being an exceptional employer, offering a dynamic and innovative work environment that mirrors the culture of leading tech giants like Facebook and Google. Our London office fosters a collaborative atmosphere where employees are encouraged to think critically and make impactful decisions, while also providing ample opportunities for professional growth and mastery of cutting-edge technology in the trading operations space. With a focus on employee well-being and a commitment to excellence, we ensure that our team members are equipped with the tools and support they need to thrive in their roles.
