SDET vs QA – What is the Difference between sdet and QA

sdet vs qa

SDET vs QA: The job title “SDET” is growing in popularity across several software engineering departments. But the distinction between a QA tester and an SDET isn’t always obvious. The fact that some businesses use the title in a different way than others further adds to the confusion. Is there more to it than simply QA engineers and automated testers? Let’s review the fundamentals.

What Exactly is SDET?

A developer and a test engineer combine to become a software development engineer in test (SDET). An SDET is someone who can assist in automating the testing process and is involved in the project right from the design stage. In essence, a software development engineer in testing is a developer.

A QA engineer, on the other hand, possesses an in-depth understanding of all testing methods and methodologies. They should also be knowledgeable in test environments, issue reporting, bug diagnosis, and data management.


You ought to have gained some understanding of the distinctions between an SDET and a QA from the definitions of the positions. The definitions, however, only provide a cursory overview of the differences between these two jobs. Here are some additional areas of distinction that will clarify the positions for you:

1. Roles and Responsibilities

A QA engineer’s duties include the following:

  • Preparing for the exam procedure
  • Distributing tests to different testers
  • Choosing the testing budget and timeline
  • Coordinating with the development team to make sure the testing is progressing as planned.
  • Preparing summaries of test findings for the development team in reports
  • Constructing test scenarios and test cases
  • Examining the test to confirm that all client demands are being fulfilled.

An SDET’s duties and responsibilities include the following:

  • Reviewing the product code at various stages of development
  • Participating in the design and planning procedures
  • Becoming a consumer advocate by making sure the product satisfies their expectations.
  • Creating scalable and reliable frameworks for test automation
  • Creating test tools to assist testers
  • Performing functional, regression, and performance testing
  • Ensuring the product’s durability, dependability, and scalability
  • Producing thorough test reports
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As you can see, the SDET’s primary responsibilities include automating tests and producing a high-quality, dependable, and scalable solution by becoming involved early in the development process. The QA, in contrast, does not participate in the planning or design processes and is solely in charge of testing.

2. Job-Related Skills: SDET vs QA

Because the tasks and responsibilities of the two occupations are different, so are the abilities required for each. A QA should be skilled in creating and running test cases, tracking defects, and using test tools like Selenium. A QA engineer requires rudimentary programming skills.

A software development engineer in testing, on the other hand, has to be knowledgeable about several programming languages and be able to comprehend the development process. Additionally, they must be able to convert customer requirements into test cases.

Since SDETs must collaborate with developers, testers, and customers, leadership and communication abilities are crucial for the position. To effectively work with multiple teams, SDETs must possess outstanding interpersonal skills.

3. Testing Techniques Employed

The black-box testing is done by the QA engineer. They are solely interested in how each component works. Internal code is unimportant. However, white box testing must be carried out by an SDET. They must make sure that the component is not just operating in accordance with requirements but also that its code is trustworthy and dependable.

An SDET has more duties than a QA engineer. A software engineer in testing should also be familiar with a variety of programming languages and testing technologies. Given these circumstances, it makes sense that an SDET makes more money on average than a QA engineer.

4. The role’s future

Manual testing has become obsolete and is in the process of being phased out with the introduction of testing automation. The major software corporations have already done away with the position of QA engineers, including Google and Facebook. The future belongs to SDETs, if these business titans are to be believed.

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If you are a QA engineer at the moment, now is the time to advance your skills. Learn new languages and experiment with test automation. The demand for QA engineers may not fully disappear, but it will decline, and SDETs will take their place.

Getting Started as an SDET

To become an SDET, one might follow one of two primary professional paths:

1. Being a programmer This will be a much simpler path to becoming an SDET if you are already familiar with programming languages. To ensure that all user scenarios are tested, it might be challenging if you don’t have a QA-testing attitude. If so, you could function best in a position where the human tester creates the test cases and you automate them.

You may also ask a QA tester whether they can assist you in establishing test coverage.

2. Employing QA testers The first half of the fight is won if you successfully locate areas that require test coverage. But in order to create automated scripts, you’ll also need to master at least one programming language. If you’re diligent and have the time, you can do this within a few months.

If you can write automation code well, you can apply for SDET employment even if you have no prior work experience. How? through the creation of custom scripts for the website or app of your choice.

Yes, you won’t receive credit for having worked for an automated client or business. But the pudding is what counts. You’ll be putting your money where your mouth is if you can show off your fantastic automation scripts and share your Github with a potential employer. (Or rather, your secret code to the location of your incoming funds!)

In Conclusion

Over the past ten years, the software development process has undergone significant changes, and these changes have also impacted testing. The result of this alteration is SDETs. SDETs have the ability to elevate the product by integrating testing into the development process.

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