Quality engineering services: what they include and how to choose
A plain guide for product and engineering leads deciding whether to bring in outside help with QA and test automation, and what to ask before they do.
What the services cover
| Service | What it’s for |
|---|---|
| Assessment | Where quality stands today, and what to fix first |
| Test automation | Unit, API and browser tests that run on their own |
| Merge gating | Tests on every pull request that block a bad change |
| Performance and load | Finding the ceiling before your users do |
| Security and usability | Often from the same provider, sometimes a specialist |
| Embedded engineers | People inside your team, then a handover |
The kinds of provider
| Provider | Good for | Watch for |
|---|---|---|
| In-house hire | The most control | Slow to hire; one person carries it all |
| Freelancers | A specific gap, quickly | Everything rests on one person |
| QA and testing firms | Scale and more hours covered | How much of the work is manual |
| Managed automation | Fast end-to-end coverage | Who owns the tests if you leave |
| Crowdtesting | Real devices and exploratory testing | Not a suite in your pipeline |
| Embedded studio | A suite your team then owns | Smaller teams; this is what strideUX does |
Questions to ask any partner
| Ask | Why |
|---|---|
| Who owns the tests if we stop? | Tests you can’t run without them aren’t yours |
| What do you do about flaky tests? | A suite people rerun until it passes stops meaning anything |
| Will tests block merges? | Reports nobody reads don’t change behavior |
| How do you hand over? | Your engineers should add a test on their own |
| How do you test code written by AI agents? | More of your code will come from them |
Questions
What's the difference between QA and quality engineering?
QA checks the product before it ships, usually by running through it by hand or with scripts and reporting what's broken. Quality engineering builds that checking into how the team works: tests run on every change, a failing test blocks the merge, and quality is part of the definition of done rather than a phase at the end. Most teams need both, but only quality engineering keeps working after an outside partner leaves.
Should tests live in our repo or on the provider's platform?
In your repo, in a language your engineers already know, if you want to own them later. Tests that live next to the code get updated when the code changes, show up on pull requests and can be run by anyone on the team. A provider's platform can be quicker to start with, so it's not always wrong, but ask up front what happens to the tests, the history and the setup if you stop paying.
How much do quality engineering services cost?
It depends far more on the shape of the engagement than on the provider. A short assessment is a fixed piece of work measured in weeks. Building a test suite is a larger project, usually a few months. Ongoing managed QA is a monthly cost that continues for as long as you use it. When comparing quotes, compare what you'll own at the end, not just the rate.
How long before we see results?
A good assessment should tell you where the risk is within a few weeks. Useful automated coverage of your most important user journeys, running on every pull request, usually takes one to three months to build. Be wary of anyone promising full coverage of a large product in a couple of weeks; coverage that arrives that fast is often shallow or flaky.
Do we still need in-house QA if we hire a partner?
Someone on your team has to own quality, but it doesn't have to be a dedicated QA hire. In many product teams, engineers own the tests and a partner helps set up the suite, the pipeline and the habits. If you already have QA people, a good partner works alongside them and leaves them better equipped, rather than replacing them.
About this guide
This guide is written and kept up to date by strideUX, a design and development studio in Northeast Ohio that has designed and built software products since 2019. We offer this service ourselves, so we have a view. We’ve tried to keep the guide useful whoever you choose.