Senior Engineer (Apache Flink)

Location: Remote from Ukraine, Armenia, or Poland

Company

hirify.global is hiring for a team responsible for a real-time data platform.

What you will do

• Design, implement, deploy, and operate stateful Apache Flink streaming pipelines using keyed state, windows, watermarks, timers, side outputs, and custom sources and sinks.
• Build and maintain CDC pipelines with Flink CDC or Debezium, including snapshots, incremental capture, schema evolution, and downstream idempotency.
• Design and operate Kafka and Kafka Connect pipelines, including topics, partitions, connectors, schemas, converters, and dead-letter routing.
• Own data flows from Kafka through Flink to PostgreSQL, TimescaleDB, ClickHouse, and BigQuery, including schema design, batch tuning, idempotency, and observability.
• Diagnose production issues such as checkpoint failures, backpressure, state growth, sink slowness, autoscaler oscillation, and restart loops.
• Contribute to platform deployment and technical direction through Helm, ArgoCD, GKE, monitoring, code reviews, mentoring, and streaming architecture decisions.

Requirements

• 5+ years of professional software or data engineering experience and strong Java expertise.
• Production experience with Apache Flink and stateful real-time streaming pipelines.
• Strong Apache Kafka experience, including Kafka Connect, consumer groups, partitions, delivery guarantees, and schema management.
• Hands-on experience with Debezium or Flink CDC and production Kafka-to-Flink-to-database or data warehouse pipelines.
• Strong PostgreSQL knowledge and experience with ClickHouse or BigQuery.
• Experience deploying and operating production data workloads on Kubernetes, with expertise in troubleshooting consistency, idempotency, schema evolution, latency, lag, and observability issues.

Nice to have

• Experience with TimescaleDB, PostGIS, ClickHouse tuning, BigQuery optimization, or time-series and geospatial data.
• Experience with the Flink Kubernetes Operator, Flink autoscaler, ArgoCD, Helm, GKE, Prometheus, or Grafana.
• Experience designing high-throughput, low-latency streaming systems or working with MQTT and IoT/event-driven systems.
• Knowledge of Schema Registry, Avro, Protobuf, and advanced schema evolution.
• Experience with routing, logistics, delivery, mobility, location-based platforms, mentoring, or technical leadership.

Culture & Benefits

• Remote work from Ukraine, Armenia, or Poland.
• Flexible schedule with a high level of autonomy.
• 20 paid vacation days, 5 sick days, and public holidays.
• Opportunities to influence product and technical decisions.
• Professional growth, learning opportunities, and a supportive working environment.