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EPAM SystemsSenior SDET / Test Infrastructure Engineer2022-2024

Enterprise E2E Automation Framework

Built enterprise test automation platform from scratch serving 20+ teams and 100+ engineers. Reduced regression cycle 90% (3 weeks → 3 days) saving $180k/year. Eliminated 80% of integration tests through contract testing while achieving 95% coverage.

TypeScriptPlaywrightCypressDockerAWS LambdaGitLab CIGrafana
$180k
Annual Savings

The Challenge

The organization faced a critical challenge: multiple applications built with different technology stacks (React, Angular, Vue) had no unified testing approach. Each team maintained their own testing solutions, leading to inconsistent quality gates, duplicated efforts, and a 3-week regression cycle that was blocking rapid delivery.

  • 5+ different testing frameworks across teams with no standardization
  • Manual testing creating 2-3 week bottlenecks before releases
  • No consistent test coverage metrics - ranging from 20% to 70% across products
  • CI/CD pipelines running tests sequentially, taking 4+ hours per build
  • Zero visibility into cross-application integration issues until production

The Solution

  • Architected a modular framework with TypeScript + Playwright as the core, supporting multiple test runners
  • Implemented parallel test execution across Docker containers with AWS Lambda orchestration
  • Created shared component library reducing test creation time by 40%
  • Built custom reporting dashboard aggregating results across all applications
  • Established test data management layer with automatic cleanup and isolation

The framework was designed with a plugin architecture allowing teams to gradually migrate while maintaining their existing tests. We implemented a 'strangler fig' pattern, wrapping legacy tests with the new framework interfaces, enabling incremental adoption without disrupting ongoing development.

Parallel Test Orchestration

typescript

Key Results

Quantifiable outcomes achieved through this implementation

60%
Faster Execution
95%
Test Coverage
3x
Deploy Frequency
85%
Bug Detection

Performance Metrics

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Architecture

Test Layer
Playwright, Cypress, Custom DSL for BDD specs
Data Layer
Factory patterns, Test data isolation, Cleanup hooks
Integration Layer
API mocking, Service virtualization, Contract stubs
CI/CD Layer
GitLab CI, Docker orchestration, Parallel execution