Software Testing and QA Jobs: Manual vs Automation, Selenium and Career Path

The short version

Testers are the people who stop bad software from reaching users. It is one of the most accessible ways into IT, especially for non-IT graduates, and it can grow into automation, performance, security or leadership.

What a tester does

1. Reads requirements and asks questions about unclear behaviour.
2. Designs test cases covering normal use, edge cases and mistakes.
3. Runs the tests, records results and logs bugs with clear steps.
4. Retests fixes and checks that nothing else broke (regression testing).
5. Reports status to the team and helps decide if a release is safe.

Manual vs automation testing

• Manual: a person runs tests by hand. Best for new features, exploring, and usability checks
• Automation: scripts run the tests. Best for repeated checks such as regression and API tests
• Most teams use both, and most roles grow from manual to automation

Skills to build

• Testing basics: test cases, test plans, bug life cycle, types of testing
• Clear bug reports with steps, expected and actual results
• SQL for checking data
• API testing with a tool such as Postman
• Basic programming in Java, Python or JavaScript for automation
• An automation tool such as Selenium, Playwright or Cypress
• A test management and bug tracking tool

A starter roadmap

1. Learn testing fundamentals and write test cases for a real website.
2. Practise bug reporting on an open demo application.
3. Learn SQL queries and API testing.
4. Learn a programming language to a basic level.
5. Automate three real flows and run them on a schedule.
6. Put your test cases and scripts in a public repository.

Interview questions

• Difference between smoke, sanity and regression testing
• What is the bug life cycle?
• Difference between severity and priority
• How do you write a good test case?
• What would you test in a login page?
• What makes a test suitable for automation?

Career path

Manual tester, then automation engineer, then senior QA or SDET (software development engineer in test), then QA lead or test manager. Some testers also move into development or product roles.

Next step

Pick a website and write 20 test cases today. Then register on JobKarle and apply to tester and QA trainee roles.