Java Full Stack Developer
- Hiring Organisation
- Citigroup
- Location
- London, England, United Kingdom
tools.We actively embrace GenAI-assisted engineering (Devin, GitHub Copilot, Cursor) to automate boilerplate, accelerate unit testing, and achieve high engineering velocity.Key Responsibilities:Backend Microservices: Design, build, and maintain production-grade REST APIs and microservices using Java 21/25 and Spring Boot.Data Ingestion & Processing: Build resilient ETL and reconciliation … services that ingest, validate, and deduplicate complex monthly datasets from multiple upstream sources into a unified data model.Data Modeling & Storage: Design relational schemas (PostgreSQL/Oracle), optimize complex SQL queries, and implement transactional data integrity, staging layers, and immutable audit logs.Full Stack Collaboration (Bonus): Partner with or contribute ...