Available for Freelance

Quality
Assurance
Engineer.

I help software teams ship with confidence. 5+ years of experience in test automation, API testing, and quality strategy — from startups to unicorns.

Rocky DC

Rocky DC

Senior QA Engineer · Jakarta, Indonesia

5+
Years of QA
200+
Test Cases Written
70%
Regression Reduced
5
Companies Served

Open for

Freelance Contract Remote
Rocky DC

I break things
so users don't have to.

I'm a Senior QA Engineer based in Jakarta with over 5 years of experience helping software teams ship better, faster, and with confidence. I've worked across startups, scale-ups, and unicorns — building automation frameworks, defining test strategies, and mentoring junior engineers.

My approach combines strong technical automation skills with a deep understanding of product and user risk. I don't just find bugs — I build systems that prevent them.

Cypress Expert API Testing BDD / TDD Agile Remote-Ready

5 Years of Impact

  1. Seller Analytics Integration TiktokShop
  • Acted as key QA driver ensuring data accuracy and reliability for business-critical seller analytics, directly impacting platform trust and adoption across a large seller base.
  • Supported multiple high-impact product initiatives including dashboards, seller tools, and data-driven features.
  • Detected and resolved 100+ pre-release defects (including critical issues), achieving a ~98% defect detection rate and significantly reducing production risk.
  • Identified critical data accuracy issues (e.g., traffic source inconsistencies and data synchronization gaps), preventing misleading analytics and poor user experience.
  1. Data & Service Migration – Category Service (Tokopedia to Bytecloud)
  • Designed and implemented a custom data validation script to verify category, annotation, and brand mapping consistency between legacy and target systems.
  • Detected hundreds of category mismatches and thousands of annotation inconsistencies, preventing large-scale data integrity issues during migration.
  • Automated large-scale data comparison across ~25,000 records, reducing validation effort from multiple days to ~2 hours.
  • Built backend automation test suite (TeslaGo) covering 28 endpoints with full test coverage before the execution phase, enabling faster and more reliable validation cycles.
  1. Data & Service Migration – Seller Analytics Platform (Tokopedia → Bytecloud)
  • Led end-to-end QA validation strategy for large-scale data migration, combining automation, data validation, and performance testing to minimize release risk.
  • Executed performance/load testing across 40+ endpoints using Rhino and Hammerflux, ensuring stable latency and system reliability during migration.
  • Identified and reported data discrepancies in analytics outputs post-migration, ensuring accuracy of key business metrics.
  • Delivered a high-quality release with zero critical production issues (P0/P1/P2), zero incidents, and no SLA/redline violations post-migration.

Tools Used

POSTMANTESLAGORHINOLOCUSTGOLANGAEOLUSSQLREST-ASSUREDJAVAXRAYJIRA
  1. Tugu Dashboard – Blockchain Analytics Platform (2024 – 2025)
  • Designed and executed a comprehensive manual test suite covering 362 test cases across 8 modules, achieving a 100% pass rate with zero failed or blocked cases.
  • Conducted security-focused testing on role-based access control, identifying critical privilege escalation vulnerabilities and unauthorized data access issues.
  • Identified and reported 50++, ensuring all critical issues were resolved before release.
  • Executed load testing across 4 endpoints simulating 20 concurrent users over 30 minutes (~36,000 total requests), confirming stable performance at 20 RPS with zero errors.
  • Validated API gateway business logic for a blockchain-based logging platform serving enterprise clients in the insurance and financial sector.
  1. Rinkes.id – SaaS Platform (2026)
  • Conducted exploratory testing and functional validation, focusing on identifying high-risk issues in user flows and system behavior.
  • Identified critical vulnerabilities in business logic, particularly in account creation and usage limitation mechanisms.
  • Executed security-focused test scenarios including input validation, file upload handling, and metadata inspection.

Tools Used

POSTMANLOCUST
  • Created and managed Test Plans and Test Cases using Spreadsheet-based documentation.
  • Built and managed backend integration tests using Mocha Chai, integrated with GitLab CI workflow for continuous quality control of the development pipeline.

Tools Used

MOCHACHAIGITLAB-WORKFLOWJAVASCRIPTPOSTMAN
  • Designed, managed, and executed manual test cases and test plans for UI and backend integration testing across banking and financial features.
  • Performed manual API testing using Postman, verifying correctness of transactional and financial endpoints.
  • Conducted functional, regression, and sanity testing across multiple release cycles to ensure product stability.
  • Documented and evaluated test results and bug cycles, maintaining clear traceability of defects across the SDLC.

Tools Used

POSTMANJIRA

My Toolkit

⚙️Automation
CypressSelenium PlaywrightAppium
🔗API Testing
PostmanREST Assured Testlib(GOLANG) NewmanGraphQL
📈Performance
LocustJMeter
🛠️Tools & PM
JIRAXRAY ConfluenceTrello
🚀CI / CD
GitHub ActionsJenkins GitLab CI
📋Methodologies
BDD / TDDAgile / Scrum Shift-LeftRisk-Anylsis

Sharing What
I Know

All Articles →

Recent Projects

All Projects →

Let's build something
bulletproof.

Need a QA engineer who can hit the ground running? I'm available for freelance projects, short-term contracts, and long-term engagements. Remote-friendly.

Freelance Projects QA Consulting Test Automation Setup Code Reviews