Senior Automation Tester in Python

We are seeking a highly hands-on Senior Automation Tester who can architect and scale enterprise-grade test automation frameworks across data platforms, APIs, and cloud native systems.

Responsibilities

• Own the design and evolution of a scalable, modular, metadata driven test automation framework supporting data pipelines, APIs and backend services, and end to end data product validation
• Enable plug and play components, parallel execution, environment isolation, and deterministic runs
• Build reusable frameworks supporting SQL based assertions, reconciliation, schema validation, and data contracts
• Drive adoption by making frameworks easy to integrate into existing pipelines
• Design tests for schema drift, backward incompatibility, late arriving data, and partial failures
• Implement row, aggregate, and hash based reconciliation, along with incremental and backfill validation
• Integrate and extend tools like Great Expectations and Soda to build custom validations for accuracy, completeness, uniqueness, and timeliness
• Expose quality metrics, SLAs, and test outcomes through dashboards
• Embed testing into pipelines through pre merge gates, release blockers, and integration with GitHub Actions, Jenkins, or similar tools
• Define strategies for synthetic data generation, masking, anonymization, and deterministic datasets for repeatable testing
• Design and execute pipeline and query performance benchmarks, concurrency and stress testing, and data skew analysis
• Automate checks for PII or PHI exposure, encryption, access control, and data retention requirements

Requirements

• 5+ years of experience in Python automation test framework development
• Strong background in SQL and data testing
• Expertise in automation testing and quality engineering
• Skills to define and implement automation roadmaps for data engineering and document intelligence projects
• Understanding of ETL and streaming validation at scale, including window based and time based correctness checks
• Familiarity with CI/CD and DataOps practices to enforce quality gates before production deployment
• Capability to analyze production data issues, reduce flaky tests, and drive root cause fixes
• English proficiency at B2 level or higher

Nice to have

• Familiarity with DBT and CI/CD (DevOps) practices

We offer

• We gather like-minded people:
• Top tech minds driving innovation in AI, cloud and digital platform modernization
• Supportive team and agile, startup-like culture
• Hybrid by design mode and opportunity to work remotely within Poland
• Chance to work abroad for up to 60 days annually
• Business-driven relocation opportunities
• We provide growth opportunities:
• Career development programs
• Thought leadership, mentoring, soft skills and well-being programs
• Certification (Anthropic, Gemini, GCP, Azure, AWS)
• English classes
• We cover it all:
• Stable pay
• Participation in the Employee Stock Purchase Plan with a 15% discount
• Benefits package (health insurance, multisport, shopping vouchers)
• Referral bonuses up to $2,000
• Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more
• Corporate, social and well-being events
• Please, note:
• Benefits listed above are available to employees only
• We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually
• We will reach out to selected candidates exclusively

EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.