Senior Software Engineer (Data-Focused), Ukraine

5+ years of experience as a backend engineer, with exposure to large-scale data systems in production. Strong programming skills in Go and/or TypeScript (Python definitely a plus). Proven experience designing and maintaining scalable APIs and services. Proficiency in SQL and experience with analytical databases (e.g., BigQuery, ClickHouse, Redshift, Snowflake). Deep understanding of cloud infrastructure (AWS and GCP preferred). Knowledge of AWS billing and cost optimization is a strong plus. Comfortable collaborating across product and engineering teams. Excellent communication skills in English, both written and verbal. Self-motivated, adaptable, and effective in a fast-moving environment. BA/BS degree or equivalent practical experience (Bonus). Experience with performance tuning and cost optimization for large-scale data systems (Bonus). Familiarity with Kubernetes and modern DevOps practices (Bonus).

Design, build, and scale backend services in Go and TypeScript that integrate deeply with large-scale data pipelines. Work closely with the billing data team on analysis, optimization, recalculation, and delivery of accurate cloud billing data. Collaborate with engineering teams to improve data pipelines and integrate them into product-facing services. Contribute to platform code and infrastructure that supports billing calculations and cloud analytics. Implement monitoring, observability, and reliability practices for both backend services and data systems. Drive best practices around backend architecture, data processing, and system design in multi-cloud environments (AWS and GCP).