5 days ago
Remote, PolandMid Level
Responsibilities
- Build and operate services that ingest Kafka topics into Apache Iceberg tables on AWS, including partitioning, compaction, deduplication, and historical backfills.
- Write tested, maintainable production code; use AI coding tools judiciously; and contribute to code reviews and engineering standards.
- Collaborate on data contracts, Avro schemas, schema evolution rules, and CI checks that enforce data quality and governance.
- Implement personal-data erasure, retention, privacy, and per-agency access controls.
- Build the query layer for the customer-facing data API and provide access through Athena.
- Evaluate, measure, and document technical approaches, performance, and cost.
- Migrate dashboards, reports, and finance extracts to the new platform.
- Develop curated shared metrics and business-ready datasets for BI tools and an AI analytics assistant.
Requirements
- Production software engineering fundamentals, including testing, Git, CI pipelines, and maintainable code.
- Daily use of AI coding tools with careful review of their output, especially for SQL, schema changes, and data correctness.
- Strong SQL skills and experience building or operating data pipelines.
- Solid understanding of data modeling.
- Clear, confident written and spoken English communication.
- Preferred: production lakehouse or data warehouse experience; Kafka and schema experience, ideally Avro; personal-data privacy, retention, and access-control experience; and JVM experience with Kotlin or Java.
- Nice to have: Apache Iceberg, Terraform, AWS Lake Formation, or DuckDB experience.
Benefits
- Fully remote contract role for people based in Poland.
- Opportunity to build a data platform from the ground up for a global fare-payment platform.
- Hands-on experience with Iceberg, Athena, Lake Formation, Kafka, Avro, and AWS.
- Opportunity to shape technical direction in a small team and develop practical AI-tooling experience.
- Masabi supports an inclusive workplace and can provide adjustments during the hiring process.
Tech Stack
Categories
BackendData Engineering
About Masabi
Masabi builds fare-payment and ticketing platforms for public transit agencies, offering mobile ticketing, account-based ticketing, and open payments through its Justride platform. The company sells its software and services to transport authorities and operators, enabling riders to pay via apps, ticket machines, or contactless bank cards. Founded in 2012 and headquartered in London, it is privately held and serves agencies in North America and Europe.