Java Software Engineer
Role Overview
Java Developer – Data role with a small, high-performing London market maker.
The role focuses primarily on Java development, with ownership of straightforward Python ETL and data ingestion into AWS and PostgreSQL.
The team builds data ingestion and tooling for the wider firm.
Key Skills for This Role
Full Job Posting
Role overview
Java Developer – Data role with a small, high-performing London market maker.
The role focuses primarily on Java development, with ownership of straightforward Python ETL and data ingestion into AWS and PostgreSQL.
The team builds data ingestion and tooling for the wider firm.
Compensation
- The posting states £140,000 plus a large proprietary trading bonus; no pay cadence is specified.
Workplace
- The role is in office in the City of London.
What you’ll do
- Build and enhance Java backend services, including APIs, batch jobs, and integrations.
- Write clean, testable code and practice testing, code review, debugging, and production support.
- Maintain and extend pragmatic Python-based ingestion and ETL.
- Work with PostgreSQL schemas, migrations, performant queries, and data validation.
- Improve reliability with monitoring, logging, alerting, and predictable CI/CD deployments.
Technology
- Primary technology: Java; secondary technology: Python.
- The stack includes AWS, PostgreSQL, Git, CI/CD, logging, and monitoring.
What they want
- 10+ years building production systems, or equivalent ability.
- Strong Java fundamentals, including object-oriented design, APIs and services, concurrency basics, and testing.
- Some UI development; comfort with SQL/PostgreSQL; and Python experience to manage and improve existing ingestion and ETL.
- Finance or markets exposure and familiarity with common AWS patterns for services and pipelines are nice to have.
Why this role
- The role offers broader scope than pure application development, including understanding the data feeding the platform.
- The posting describes a lean, high-impact team and strong growth runway.
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