In this article
What does a software tester do?
A software tester — or QA (Quality Assurance) engineer — systematically verifies that software works as intended before it reaches users. They design test cases, execute them, report bugs, and ensure that fixes don't break other parts of the system.
Key skills & tools
Hard skills
Soft skills
- Attention to detail — spotting edge cases others miss
- Analytical thinking — understanding how components interact and where they might fail
- Communication — writing clear, reproducible bug reports developers can act on
- Persistence — methodically testing every scenario, not just the happy path
- Empathy — thinking like an end user, not a developer
Typical responsibilities
- Test planning — designing test cases and test strategies for new features
- Manual testing — executing test cases, exploratory testing, regression checks
- Automated testing — writing and maintaining automated test suites
- Bug reporting — documenting defects with clear reproduction steps and severity ratings
- API testing — verifying backend endpoints with tools like Postman
- Release sign-off — final verification before production deployments
- Performance testing — load testing to ensure the system handles real-world traffic
Responsibilities by seniority
Junior QA Tester
0–2 years experience
- Executes manual test cases
- Reports bugs in JIRA
- Learns the product and codebase
- Assists with regression testing
QA Engineer
2–4 years experience
- Designs and writes automated tests
- Owns test coverage for a product area
- Participates in sprint planning
- Mentors junior testers
Senior QA / SDET
4+ years experience
- Defines QA strategy and standards
- Builds CI/CD test pipelines
- Drives quality culture across the team
- Architects the test automation framework
A day in the life
Sprint review this morning. Three new features went into staging last night. You pick up the checkout flow changes — the highest risk. You write 14 test cases covering happy path, edge cases, and integration with the payment gateway.
You've found two bugs: one cosmetic (misaligned button on Android), one critical (the discount code field accepts negative values and applies them backwards). The critical one goes straight to the developer with a reproduction video.
The fix is in. You re-test. Confirmed resolved. Regression check passes. You sign off the feature for production.
You spend an hour improving the Cypress test suite — last week's deployment broke 4 automated tests because a CSS class name changed. You switch them to data-testid selectors. More stable. Less maintenance next time.
Pros & cons
✅ Advantages
- Great entry point into tech with no CS degree
- Remote-friendly across the industry
- Clear path to automation and SDET roles
- Every software company needs QA
- Satisfying to catch bugs before users do
- Work spans the entire product — broad learning
❌ Disadvantages
- Manual testing can be repetitive
- QA is often blamed when bugs slip through
- Sometimes undervalued vs. developers
- Tight deadlines pressure you to cut test coverage
- Flaky automated tests are a constant frustration
Salary potential — global rating
Career paths
SDET (Software Dev Engineer in Test)
Heavy automation, CI/CD pipelines, test architecture. Highest compensation in the QA track.
QA Lead / QA Manager
Lead a team of testers, define quality strategy, own the release process.
Junior Developer
Many QA engineers pivot to development — they already understand the codebase deeply.
Security Tester / Penetration Tester
Specialise in finding security vulnerabilities. High demand, premium rates.
QA Tester vs related tech roles
QA sits at the intersection of development, product, and operations. Here's how it compares to adjacent roles you might consider or transition into.
| Role | Core focus | Key skills | Pay vs QA | Entry |
|---|---|---|---|---|
| QA Tester / SDET You are here |
Quality assurance, test design, automation | Testing methodology, Cypress/Playwright, SQL | Baseline | Easy |
| Junior Developer | Building features in a production codebase | Full-stack coding, CS fundamentals, Git | Higher | Hard |
| DevOps Engineer | CI/CD pipelines, infrastructure, deployment automation | Bash, Docker, Kubernetes, cloud platforms | Higher | Hard |
| Business Analyst | Requirements gathering, process analysis, documentation | Stakeholder communication, JIRA, UML, SQL basics | Similar | Medium |
| Product Manager | Defining product roadmap, prioritisation, delivery | Analytical thinking, stakeholder management, strategy | Higher | Medium |
QA is one of the lowest-barrier entries into the tech industry. Many QA engineers later pivot to development, DevOps, or product roles — the testing background is a genuine advantage in all three.
Future outlook
AI-powered testing tools are automating some manual test generation — but they're also raising the bar for what "good QA" means. The role is shifting from test executor to test architect. Testers who understand automation, CI/CD, and quality engineering will thrive.
Fun facts
Myths busted
Reality: Professional testing is systematic, methodical, and increasingly automated. Test design requires analytical thinking, domain knowledge, and understanding of risk — it's an engineering discipline.
Reality: SDET roles at top tech companies are well-compensated and highly technical. QA engineers also frequently transition into development, product management, or DevOps roles.
Is it for you?
You'll thrive if you...
- Have a perfectionist streak
- Enjoy breaking things (constructively)
- Want to enter tech without deep coding background
- Like systematic, methodical work
Think twice if you...
- Want to build new features, not validate them
- Dislike repetition and documentation
- Are impatient with slow release cycles
How to start
Learn manual testing fundamentals
ISTQB Foundation Level is the industry standard certification. Study test case design, defect lifecycle, and testing types.
Practice with real apps
Find bugs in real websites (many companies have bug bounty programs). Document them professionally.
Learn one automation tool
Cypress or Playwright for web UI. Postman for APIs. Build a portfolio of automated test scripts on GitHub.
Apply to QA Analyst / Junior Tester roles
Smaller software companies and agencies are good starting points. ISTQB cert + GitHub portfolio opens doors.
💸 What it actually costs to start
QA is one of the cheapest ways into tech — most tools are free, and the ISTQB cert is affordable. The investment is mostly time.
What QA engineers wish they'd known
Perspective from people already doing the job — on entry, the real skill set, and where AI is taking the role.
I came from a support background — I just knew what broke and how users experienced it. A senior tester told me that was actually the core skill. My first three months of formal QA felt like catching up; after that I was ahead of people with CS degrees because I thought like a real user, not a developer.
QA Engineer · 4 years in, fintech
Learn to write a great bug report before you learn any tool. Clear steps to reproduce, environment, expected versus actual — that's the job. I've seen automation engineers who couldn't communicate a defect clearly and it made them almost useless. Communication is the hidden skill in QA.
Senior QA Engineer · 7 years in, SaaS
AI is changing what we test, not why we exist. Someone still needs to decide which risks matter most, design the strategy, and judge whether "it works" actually solves the user's problem. That's judgment — and judgment can't be automated yet.
QA Lead · 10 years in, enterprise software