Why Software Testing Is the Most In-Demand Skill Right Now

What runs before each release (typical pipeline)

On every code push:
- Unit tests (developers)
- Lint and build checks

On every pull request:
- API tests for changed services
- Smoke UI tests on key flows

Before release:
- Full regression suite
- Exploratory testing of new features (testers)
- Performance check on critical pages

Faster releases mean these checks must be reliable and automated.

# Example: an AI tool suggested this function. A tester asks 'what could break?'
def discount_price(price, percent):
    return price - price * percent / 100

# Tests that reveal missing validation (pytest)
import pytest

def test_normal_discount():
    assert discount_price(1000, 10) == 900

def test_zero_discount():
    assert discount_price(500, 0) == 500

@pytest.mark.xfail(reason="No validation: negative percent increases price")
def test_negative_percent_rejected():
    with pytest.raises(ValueError):
        discount_price(1000, -20)

// k6 load test - run with: k6 run load_test.js
import http from "k6/http";
import { check, sleep } from "k6";

export const options = {
  vus: 20,          // 20 virtual users
  duration: "1m",   // for one minute
};

export default function () {
  const res = http.get("https://test.k6.io");
  check(res, {
    "status is 200": (r) => r.status === 200,
    "response under 800ms": (r) => r.timings.duration < 800,
  });
  sleep(1);
}

Choose your testing path

I enjoy...                         -> Consider
Finding odd bugs, using products   -> Manual / exploratory QA
Writing code and tools             -> Automation / SDET
Speed, scale and systems           -> Performance testing
Security and how attacks work      -> Security testing (with ethics)
Planning and guiding people        -> QA lead / manager

Most testers start with core QA skills, then specialise.

Feature: Apply coupon at checkout

  Scenario: Valid coupon reduces the total
    Given my cart total is 1000 rupees
    When I apply the coupon "SAVE10"
    Then the total should be 900 rupees

  Scenario: Expired coupon is rejected
    Given my cart total is 1000 rupees
    When I apply the expired coupon "OLD50"
    Then I should see "This coupon has expired"
    And the total should remain 1000 rupees

Risk-based test planning

Feature            | Impact if broken | Likelihood | Priority
-------------------|------------------|------------|---------
Payment            | High             | Medium     | 1
Login              | High             | Low        | 2
Coupon codes       | Medium           | High       | 2
Profile photo      | Low              | Medium     | 3
Footer links       | Low              | Low        | 4

Test priority 1 deeply on every release;
cover lower priorities with smoke or periodic checks.

Weeks 1-2   Testing fundamentals: SDLC, STLC, test types
Weeks 3-4   Test design techniques + writing test cases
Week 5      Bug reporting and a tracking tool
Week 6      SQL for data validation
Week 7      API testing with Postman
Weeks 8-9   Automation basics (Playwright or Selenium)
Week 10     CI basics + portfolio + mock interviews

Week ___

App tested: ______________________
Test cases written: ___
Bugs found (practice apps): ___
New tool or technique used: ______
Automation scripts written: ___
What I learned: ______
Next week's focus: ______

QA portfolio outline

1. README: who I am, skills, how to run tests
2. Manual: test plan + 30 test cases + 5 bug reports
3. API: Postman collection with assertions
4. SQL: validation queries
5. Automation: small Playwright or Selenium suite
6. CI: tests running on GitHub Actions
7. Reflection: what I learned, what I would improve