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I Failed My First QA Automation Interview — Here’s What I Wish I Knew

Codemify — Fri, 10 Oct 2025 12:00:00 +0000

When I went to my first QA Automation interview, I thought I was ready.
I had read articles, memorized definitions, and even watched a few YouTube tutorials.
Ten minutes in, I realized — I wasn’t being tested on theory.

They wanted to see how I think, not what I know.
That’s when I understood: QA interviews are not about remembering, they’re about reasoning.

So if you’re preparing for your first QA Automation interview (or still freaking out about it), here’s what I’ve learned after years of helping people go from zero to their first tech job.

What Recruiters Actually Test You On

Forget about definitions.
Most recruiters already assume you can Google what “TypeScript” or “flaky test” means.

They’re checking things like:

Can you think logically and explain your steps?

Can you debug under pressure?

Do you take responsibility or make excuses?

You don’t need to sound smart — you need to sound real.

Common Interview Questions (and Better Answers)

“What’s the difference between JavaScript and TypeScript?”

Most people say:

“TypeScript is JavaScript with types.”

That’s technically true but doesn’t show understanding.

✅ Better answer:

“TypeScript adds static typing, so you catch errors before runtime.
In big automation frameworks, it helps reduce flaky behavior and makes your code easier to maintain.”

“How do you handle flaky tests?”

🗣️ Weak answer:

“I just rerun them.”

✅ Better answer:

“I start by identifying the cause — timing, selector, or data issue.
In Playwright, I use auto-waiting and stable locators.
Retries aren’t to hide problems but to detect patterns.”

“How do you approach accessibility testing?”

✅ Example answer:

“I combine Playwright with Axe-core to automate accessibility checks.
But I still manually verify color contrast, keyboard navigation, and focus traps.”

Real Story: From Photographer to QA Engineer in Germany

One of my students used to be a photographer.
Single dad, two kids, zero tech background.

He told me:

“I thought people like me don’t get jobs in tech.”

Fast forward six months — he’s a QA Engineer in Germany, earning more than he ever imagined.

What changed?
He stopped memorizing definitions and started talking about real projects.

He practiced explaining:

how he found bugs,

how he documented them,

and what he learned from fixing them.

Recruiters loved it — because he sounded like someone who had actually worked in QA, not someone who had just finished a course.

How to Stand Out in a QA Interview

Use the STAR method — Situation, Task, Action, Result.
Talk about a bug or test you really worked on.
Say “I don’t know, but I’d love to find out” — that’s honesty, not weakness.
Practice explaining logic on a whiteboard or piece of paper.

My Final Advice

You can’t fake understanding.
If you’ve practiced, failed a few tests, and learned from it — you’re ready.

Don’t try to sound perfect. Try to sound curious.
That’s what gets you hired.

And remember: QA is not about tools, it’s about mindset.
If you can prove that you’re reliable, logical, and never stop learning — the rest will follow.

✍️ If this helped you, drop a comment or share your own interview story below.

Let’s make the QA world a little more honest — and a lot more human.

At Codemify, we try to pass on everything we’ve learned — every real case, every failure, every trick that helped us get here.
Because we know that real experience — not theory — is what truly helps our students grow, get jobs, and change their lives

Mock SDET Interview: What Every Junior QA Should Know

Codemify — Fri, 12 Sep 2025 12:58:39 +0000

So, you’re getting ready for your first QA/SDET interview?

I’ve been there — and let me tell you, it’s not just about answering questions. It’s about proving that you can think like an engineer, handle pressure, and show that you’ll add value to a dev team.

That’s exactly why mock interviews are game-changers. They let you practice in a safe space, make mistakes, and get feedback before it really counts.

Here’s a breakdown of real Junior QA / SDET interview questions I’ve seen — plus tips on how to nail them.

Common Questions You’ll Hear in a Junior SDET Interview

1. Tell me about yourself.

👉 Keep it short: Present → Past → Future.
💡 Example:

“I just wrapped up a QA training program where I worked with Playwright and JavaScript. Before that, I was in logistics, where I learned process optimization. Now I’m looking for a Junior SDET role where I can grow in automation and testing.”

2. QA vs QC vs Testing — what’s the difference?

QA = process (preventing bugs)

QC = product check (validating results)

Testing = actually finding issues

💡 Quick answer:

“QA ensures the process, QC checks the result, and testing is the execution. All three matter.”

3. Write a test case for a login page.

Structure is key:

Test Case: Login with valid credentials

Precondition: user exists.

Steps: open login page → enter email + password → click login.

Expected result: user lands on dashboard.

4. Write a short program to reverse a string.

💡 JavaScript example:

function reverseString(str) { return str.split('').reverse().join(''); } console.log(reverseString("Interview")); // weivretnI

Don’t just write the code — explain your thinking. That’s what they’re really checking.

5. How do you test an API?

Checklist to mention:

Status codes (200, 400, 500)

Response body (fields, types)

Headers (auth, content type)

Negative cases (invalid input)

💡 Example:

“I start with Postman to validate positive and negative scenarios, then automate with Playwright or RestAssured.”

6. Selenium vs Cypress vs Playwright

Selenium: legacy, multi-language, slower.

Cypress: modern, JS-only, fast, fewer browsers.

Playwright: modern, multi-language, multi-browser, API + UI.

💡 Example:

“I prefer Playwright for speed + CI/CD, but Selenium is still common in older projects.”

7. How do you handle conflicts with developers?

💡 Example:

“I don’t argue — I bring evidence. Logs, repro steps, impact. My role is to help ship quality, not to ‘win’ the argument.”

Why You Should Do a Mock Interview

Practice without risk.

Get honest feedback.

Build confidence before it’s real.

When the actual interview comes, you’ll feel like you’ve already been there.

Over to You

Have you ever done a mock interview before your real one?

What’s the hardest question you’ve faced in a Junior QA/SDET interview?

Drop your thoughts in the comments 👇 Let’s make this a resource for every new QA engineer out there.

🤌 My First Months as the Lone QA Engineer in a Startup (Step-by-Step Roadmap)

Codemify — Tue, 19 Aug 2025 17:03:20 +0000

So you’ve just been hired as the first QA (or QA Automation) engineer in a startup. Congrats — and good luck 😅

This role is equal parts exciting and terrifying. You’re not just testing features. You’re building the whole definition of quality for the company.

I’ve been in this situation more than once in my 10+ years of QA — here’s the 6-month roadmap I wish someone had given me back then.

Key Things to Keep in Mind

You are not “just the tester.” You’re building processes.
The first month isn’t about tools — it’s about trust.
Automation is cool, but useless if nobody runs your tests.
Quick wins > “perfect frameworks.”

6-Month QA Roadmap

Week 1: Don’t Touch the Code (Yet)

Read product docs, watch demos, explore the backlog.
Meet PMs, devs, and maybe even the CTO.
Evaluate how releases are currently happening.

👉 Pro Tip: Write down “before” metrics (bug counts, release time, manual test hours). Six months later, this will be your “see, I told you so” slide.

Weeks 2–4: Build the Basics

Do manual testing with the current release cycle.
Spin up a test case doc (Google Sheets > nothing).
Use Postman/Insomnia for API poking.
Write things down in Confluence/Notion so nobody forgets.

⚠️ Don’t become the “process cop.” Incremental improvements stick better than a revolution.

Months 1–3: Start Automating

Pick a framework. (Hot take: Playwright > Cypress for stability.)
Choose your poison: JavaScript/TypeScript, Python, or Java.
Add your first smoke tests for UI + API.
Start setting rules for environments and releases.

# Example: running Playwright smoke suite npx playwright test --project=smoke

Months 4–6: Scale & Show Impact

Cover critical features with automation.
Hook tests into your CI/CD pipeline (GitHub Actions, GitLab, whatever you use).
Start reporting metrics to the team: “Regression cycle down 80%”

“Bug reopen rate cut in half”

At this point, you’re not just QA. You’re shaping engineering culture.

Best Practices for Lone QA Engineers

Write everything down → if it’s not documented, it didn’t happen.
Collaborate, don’t dictate → QA is a partner, not the police.
Ship quick wins → a smoke suite builds instant credibility.
Keep learning → tools change, principles don’t.

Being the first QA engineer in a startup is hard — but it’s also one of the fastest ways to grow your career. You’ll touch everything: processes, people, tools, automation.

And who knows — in six months, you might be leading a team instead of being the “QA department of one.”

How to Convert Your API Login Helper to a Reusable Fixture in Playwright (JS Version)

Codemify — Mon, 11 Aug 2025 14:12:53 +0000

Tired of typing the same login steps in every Playwright test?
Yeah, me too.

Instead of wasting minutes (that add up to hours) on repeated UI logins, you can log in once — programmatically via API — and reuse that session everywhere.

In this guide, I’ll show you how to turn your API login helper into a reusable Playwright fixture. The result? Faster, more stable end-to-end tests and a lot less frustration.

Let’s go from clicking through the UI… to logging in like a pro.

await page.goto('/login'); await page.fill('#email', 'user@test.com'); await page.fill('#password', 'DontTestMe'); await page.click('button[type="submit"]');

To this:

await apiLogin(page, request, adminEmail, adminPassword); await page.goto('/dashboard');

And finally, to this:

await authenticatedPage.goto('/dashboard');

No UI login. No wasted time. Just results.

The Setup: API Login via Token
Let’s say your backend gives you an accessToken after

a POST to /api/users/login. We’ll use that to inject the cookie directly.

This trick will log in your user programmatically before the test even starts.

Step 1: Your apiLogin.js helper
Create this file:

// Send login api request
const apiResponse = await apiClient.post(/api/users/login, {
data: {
email,
password
}
});
// Convert response to json
const apiResponseJson = await apiResponse.json();
// Return accessToken for future usage
return apiResponseJson.accessToken;
}

Step 2: Create a Playwright fixture

Create this file:

import { apiLogin } from '../api/UsersApi';
export const test = base.extend({
authenticatedPage: async ({ browser }, use) => {
// Step 1: Create an API client (apiContext)
const apiClient = await request.newContext();
// Step 2: Send api login request
const token = await apiLogin(apiClient, ‘test@gmail.com’, ‘12345678’);
// Step 3: Create a browser context to add your apiToken to
const context = await browser.newContext();
// Step 4: Inject localStorage token before any page is created
await context.addInitScript((tokenValue) => {
window.localStorage.setItem('accessToken', tokenValue);
}, token);
// Step 5: Create and use new page our of context above
const page = await context.newPage();
await use(page);
await context.close();
}
});

Step 3: Write your test

test(‘should find best qa automation bootcamp’, async ({ authenticatedPage, createdListing }) => {
await authenticatedPage.goto('https://www.youtube.com/@Codemify');
await expect(authenticatedPage).toHaveText(/Best QA Bootcamp/);
});

Why This Is So Powerful

Speed – No need to visit login page, wait for form, or click buttons.
Stability – Removes flaky UI interactions from critical path.
Reusability – You can now use authenticated Page anywhere.

And let’s be honest — if you’re going to scale your tests or teach others how to automate, this is the standard.

_"Use real user flows in your app once, then move all auth to the backend. You should test your login UI once — but run your actual tests with blazing-fast, headless tokens.

Automation is about speed and precision, not repeating what a human would do"_

— Sergii

Founder of Codemify
Follow us on YouTube |

How to Become a QA Automation Engineer in 2025: The Ultimate Step-by-Step Roadmap

Codemify — Fri, 25 Jul 2025 13:31:34 +0000

Are you thinking about switching careers and becoming a QA Automation Engineer?

In this article, we’ll walk you through a clear, practical roadmap to help you break into QA automation — even if you’re starting from scratch.

From the skills you need to the tools you should learn, how much time to invest daily, and how to land your first job — this guide has it all.

What Is a QA Automation Engineer?

A QA Automation Engineer builds automated tests to check the quality and stability of software. Unlike manual testers who execute test cases by hand, automation engineers write scripts and use frameworks to speed up testing processes — making them highly valuable in the tech world.

How Much Time Do You Need to Become One?

Let’s cut through the noise:
Myth: "Just study 1 hour a day"
Truth: You need to dedicate at least 3 hours a day consistently to succeed.

You’re switching careers. That takes real effort, discipline, and time.

Step-by-Step: How to Become a QA Automation Engineer from Scratch

Step 1: Learn Manual Testing Basics

Even if your goal is automation, manual testing is your foundation.
Why? Because you can’t automate what you don’t understand.

Manual testing teaches you:

What types of tests to automate (e.g. regression testing)
How to write and read test cases
Testing theory and QA processes

If you already have manual QA experience or finished a manual testing bootcamp, you can skip to the next step.

Step 2: Choose a Programming Language

Your next step is picking a language for automation scripting. The top 3 choices in 2025:

JavaScript – Best for beginners. It’s flexible, the most popular, and beginner-friendly.
Python – Great for beginners, user-friendly, and the second most popular one after JS
Java – Still widely used, but more complex and heavy for beginners.

Step 3: Pick Your Automation Framework

Depending on the language, choose a test automation framework. For JavaScript, the top 3 tools in 2025 are:

1.WebdriverIO (WDIO)

User Interface and mobile test automation
Highly flexible and powerful
Used by major U.S. companies and tech teams

2.Playwright

Developed by Microsoft
Fastest-growing JS framework
Powerful and modern, but fewer job openings (for now)

3.Cypress

One of the market leaders in QA job listings
User-friendly, great documentation and community

Step 4: Practice What You Learn

Learning without practice doesn’t work.
Here are 3 ways to get hands-on experience:

Free – Use YouTube tutorials (e.g. our Codemify channel)
Mentorship – Hire a mentor to help when you're stuck
Bootcamp – Join a guided, structured program like Codemify Bootcamp for hands-on team projects, mentor support, and real U.S. startup experience

Step 5: Prepare for the Job Market

To get hired as a QA Automation Engineer, you’ll need to:

Build a strong LinkedIn profile
Write a job-winning resume
Practice mock interviews (technical and soft-skills)

Becoming a QA Automation Engineer in 2025 is absolutely achievable — even if you’re starting from zero.

Whether you learn on your own or join a bootcamp, the key is consistency, practice, and support.

Whether you're switching careers or just starting out — this roadmap gives you everything you need.

But information alone isn’t enough.

You need practice.
You need feedback.
You need real-world experience.

We help aspiring engineers:

learn automation with modern tools (like JavaScript + Playwright)
build real projects with real teams prepare for real interviews — with real feedback and real QA jobs — with real salaries

Most students who follow the system land a job within 4–6 months.

Want to see this article in video format?

Click here and watch the video version on YouTube — and don’t forget to subscribe so you never miss new QA stories!

— Sergii

Founder of Codemify
Follow us on YouTube | Join the Bootcamp