Lead Java Developer

Required skills

• 7+ years (or strong equivalent) building backend systems with Java (strong core Java)
• Solid knowledge of data structures, OOP, and design patterns
• Python for LLM/MCP (scripting, data processing, or tooling): hands-on experience using Python in any practical context — automation scripts, data pipelines, LLM API integration, or MCP tooling
• Strong low-level design (LLD) skills: modular architecture, clean abstractions, separation of concerns
• API design experience: RESTful services, backward compatibility, versioning
• Strong experience with relational databases, SQL, and data modeling — ideally PostgreSQL (schema design, query optimization, indexes)
• Practical experience in AWS, preferably including EMR or equivalent managed compute
• Experience with CI/CD pipelines (GitHub / GitLab) and engineering best practices (code reviews, automation)
• Testing strategy: unit, integration, and E2E testing — not just we have tests but a deliberate approach to test coverage and reliability
• Monitoring, dashboards & observability: experience setting up or maintaining logging, metrics, alerting, and dashboards for production systems
• Strong analytical and debugging skills; ability to optimize performance and reliability at scale
• System architecture and distributed data systems: ability to design, evaluate, and evolve system-level architecture
• English communication skills Upper Intermediate+ (written and spoken)

Nice to have

• Scala
• Apache Spark (or equivalent distributed processing frameworks, Airflow, Kafka, Akka)
• Experience with data transformation / ETL pipelines
• Experience with geospatial/map-related data or large-scale data quality systems