Junior Java Software Engineer – Data Engineering
Quant Capital
Overview
In this Java-focused data engineering role, you will build backend services and APIs while owning straightforward Python ETL/ingestion to AWS and PostgreSQL. You’ll work in a lean, high‑impact team to scale data tooling for the trading platform. The role blends core Java development with data ingestion work in a hybrid (4:1) London setting. You’ll contribute to reliable deployments, monitoring, and production support while growing your data engineering capabilities.
Responsibilities- Develop and enhance Java backend services (APIs, batch jobs, integrations) used across the business
- Write clean, testable code with strong engineering discipline (testing, code reviews, debugging, production support)
- Maintain and extend Python-based ingestion/ETL for data flow
- Work with PostgreSQL (schemas, migrations, performant queries, data validation)
- Improve service reliability through monitoring, logging, alerting, and CI/CD deployments
- Collaborate with cross-functional teams to integrate data pipelines and tooling
- Contribute to data ingestion initiatives and platform tooling for the firm
- Participate in production incident handling and on-call rotation
- Assist in optimizing data-related performance and reliability
- 2–5 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 to manage/improve ETL/ingestion
- problem solving
- team collaboration
- adaptability
- Java
- Python
- AWS
Reference: WJ-747_30171726