QA Engineer résumé example
Quality engineers are often hired on tool names and judged on escaped defects. This example reverses that: every bullet is an outcome (defects found before release, escape rate, regression time, flaky-test rate) with the tooling in parentheses. It separates test automation, exploratory testing and process work so a reader sees a tester who thinks, not a script runner, and it names the risky domains the candidate has covered.
QA engineer with six years in payments and healthcare software, where a missed defect costs money or safety. Built automation suites that cut regression from 3 days to 40 minutes, brought the escaped-defect rate at a claims platform from 11% to 2%, and runs exploratory sessions that found the bugs the scripts could not. Fluent in Playwright, Cypress and API testing; comfortable reading the code under test.
Experience
- Built the end-to-end suite (Playwright, TypeScript, 640 tests) for the claims platform used by 90 insurers; full regression went from 3 days of manual testing to 40 minutes in CI.
- Cut the escaped-defect rate from 11% to 2% of releases in 18 months by adding risk-based test planning, API contract tests and a release readiness checklist signed by QA and product.
- Reduced flaky tests from 14% of runs to under 1% by isolating test data, replacing sleeps with network waits and quarantining with an owner and a deadline.
- Ran 2 exploratory testing sessions a sprint on new features; they found 38 defects in a year that automation did not, including a rounding error in co-payment calculations.
- Automated 420 regression cases for a card-processing gateway (Cypress, Postman, Newman) and wired them into the pipeline; release testing dropped from 5 days to 1.
- Designed the test data service that generates PCI-safe synthetic cards and accounts; defects caused by shared test data fell by 90%.
- Led the testing of the 3-D Secure 2 migration across 14 acquiring banks with no production incident at cutover.
- Tested web and mobile releases for 4 client products; wrote 300 test cases and reported 210 defects with reproduction steps that developers closed without follow-up questions in 95% of cases.
- Introduced severity and priority definitions agreed with product; release-blocking debates fell from weekly to 2 in the following year.
Education
Skills
Certifications
Languages
Shown in the Harvard template
Questions
List the ones you could demo today, grouped as automation, practice and tooling. A tester with twelve frameworks and no outcomes reads as someone who follows tutorials.
Use what you can count: regression time, tests automated, defects found before release, flaky-test rate, time saved per release. Start tracking escapes now; it is the number hiring managers ask about.
Yes, as exploratory testing and test design. Say how many defects you found that automation missed and how you prioritised. Manual-only résumés struggle; thinking testers who also automate do not.
In a Certifications section with the level and date. They pass filters, but the bullets about defect rates and regression time are what get the interview.
More examples
All examples →Backend engineer with six years building payment and logistics services in Go and TypeScript. Owned services handling 40,000 requests per minute, cut a core API's p95 latency by 70%, and led the migration of a monolith into twelve services without a customer-facing incident. Comfortable on call, in design reviews and in front of a whiteboard with product.
Experience
- Led the split of the order monolith into twelve Go services behind an API gateway; deploy frequency went from weekly to 30+ releases a day with zero Sev-1 incidents during the migration.
- Rewrote the rate-calculation API with cached carrier tables and request coalescing; p95 latency dropped from 820 ms to 240 ms at 40,000 requests per minute.
- Designed the event schema and outbox pattern used by 9 teams; duplicate shipment events fell to zero after rollout.
- Ran the on-call rotation for the platform group and cut paged alerts by 60% by deleting noisy checks and adding SLO-based burn-rate alerts.
- Built the direct-debit mandate service (TypeScript, PostgreSQL) that processed £1.2bn in its first year; passed the external PCI DSS audit with no findings.
- Introduced contract tests between the mobile app and the ledger API; integration bugs found in production fell from 11 to 2 per quarter.
- Mentored three graduate engineers through their first production launches; all three were promoted within 18 months.
- Delivered React and Node features for eight client projects, from a council booking system to a retailer's loyalty app.
- Set up the agency's first CI pipeline (GitHub Actions, Docker), cutting release day from a full afternoon to 20 minutes.
Projects
An open-source job queue on PostgreSQL with exactly-once delivery; 2,100 GitHub stars and used in production by at least four companies.
Education
Skills
Certifications
Languages
Summary
Data analyst with five years in e-commerce and subscription businesses, turning warehouse data into decisions for product and marketing teams. Built the self-serve dashboards 140 people use weekly, found the pricing leak that recovered €1.4M a year, and runs the experiment readouts for twelve teams. Fluent in SQL and Python, and in the harder skill of saying what the data does not show.
Experience
- Found a discount-stacking leak in the checkout data and quantified it at €1.4M a year; the fix shipped within a month and recovered 92% of it.
- Built the Looker dashboards for product and growth (dbt models on BigQuery) used weekly by 140 people; ad-hoc data requests fell by 60%.
- Run experiment readouts for 12 teams and 90+ A/B tests a year; a shared power calculator and template cut tests stopped early on noise to near zero.
- Modelled customer lifetime value by acquisition channel; marketing moved 25% of paid budget to the two channels with the highest 12-month LTV.
- Built the churn-risk model (logistic regression in Python) that flags subscribers 30 days out; retention campaigns on the flagged group lifted saves by 18%.
- Rebuilt the weekly executive report from 40 manual spreadsheet steps to one dbt pipeline; preparation time went from a day to 20 minutes.
- Analysed the paywall meter with cohort analysis; raising the free-article limit from 3 to 5 increased trials by 22% without losing subscribers.
- Cleaned and analysed survey data for 20 client studies in R and SPSS; produced the charts and tables that went into every client report.
- Automated the monthly tracker report with R Markdown, saving the team roughly 30 hours a month.
Projects
A public dashboard tracking asking rents by area from 60,000 scraped listings; cited by two national newspapers.
Education
Skills
Certifications
Languages
Mechanical engineer with six years designing heat-transfer and material-handling products from concept to production. Designed a six-size heat exchanger family that cut unit cost 18%, took a compressor mount's field failure rate from 2.3% to 0.4% across 12,000 units, and cut prototype lead time from six weeks to nine days. EIT, Certified SolidWorks Professional, fluent in ANSYS and GD&T.
Experience
- Designed a six-size brazed-plate heat exchanger family in SolidWorks; part count fell from 41 to 27 and unit cost dropped 18% against the predecessor line.
- Led the DFMEA and tolerance stack-up for a new compressor mount; field failures fell from 2.3% to 0.4% across 12,000 units shipped in the first year.
- Ran CFD in ANSYS Fluent on a manifold redesign; pressure drop fell 22% and the test rig confirmed the model within 5%.
- Cut prototype lead time from six weeks to nine days by qualifying an in-house SLS printer and a local CNC vendor for first articles.
- Owned drawings and BOMs for a modular conveyor line of 300+ assemblies; engineering-change turnaround fell 40% after I moved the team onto SolidWorks PDM.
- Redesigned the drive-module gearbox mount; assembly time fell from 45 to 28 minutes, worth about $90,000 a year at 2,000 units.
- Supported seven customer installations on site and wrote the installation manual still shipped with every line.
- Designed welding fixtures for a sprayer boom; three of four were adopted on the line and cut setup time by about 15 minutes per unit.
- Ran FEA in ANSYS Mechanical on a hitch bracket and proposed a gusset that lifted the safety factor from 1.6 to 2.4 at no added weight.
Education
- Senior design: a low-cost solar water heater tested at 62% collector efficiency; team won the department's design award.