Built by Testers, For Testers
Started in a cramped office space back in 2019, Veltrion began when three QA engineers got tired of seeing talented people struggle with integration testing. The tools existed, sure. But the knowledge? Scattered across forums, outdated documentation, and tribal wisdom that never made it outside individual teams.
We thought there had to be a better way to teach this stuff. Turns out, there was.
The Problem We Saw
Most testing courses focused on theory or basic UI automation. Nothing wrong with that, but when you're staring at Postman or working through a REST API specification at 2 AM, theory doesn't help much.
Integration testing felt like a dark art—something you picked up through years of trial and error, if you were lucky enough to have mentors.
What Changed
We started small. Weekend workshops in borrowed conference rooms. Ten people learning authentication flows and webhook validation. The feedback was immediate: people were hungry for practical knowledge.
That first year we ran seventeen workshops. By the end of it, we knew we'd stumbled onto something worth building.
How We Teach
Every instructor has spent years in the trenches. They've debugged production incidents, written test frameworks from scratch, and dealt with the chaos of microservice architectures.
Our courses use real API specifications. Actual integration scenarios from companies that gave us permission to anonymize their challenges. You're not learning toy examples.
Where We Are Now
Five years in, we've trained over 2,800 people. Some went on to lead QA teams. Others switched careers entirely. A few even started their own testing consultancies.
We're still in Connecticut, though the office is bigger now. And we're still focused on one thing: making integration testing accessible to anyone willing to put in the work.
What Drives Our Curriculum
Integration testing isn't static. APIs evolve. Protocols change. New patterns emerge every few months. A course that worked perfectly in 2022 might miss critical concepts by 2024.
That's why we update our material constantly. When GraphQL subscriptions started gaining traction, we rebuilt an entire module. When OAuth 2.1 came out, we rewrote authentication sections within weeks.
Our instructors meet quarterly to review what's happening in the field. They bring back pain points from consulting gigs, new testing frameworks they've encountered, and gaps they've noticed in current student knowledge.
We don't claim to teach everything. The testing landscape is too vast for that. But what we do cover, we cover thoroughly—with an eye toward techniques that'll remain relevant even as specific tools change.
How Learning Actually Happens
We've refined this over dozens of cohorts. Some things work better than others. This is what stuck.
Foundation Through Context
First week covers HTTP fundamentals, but not in isolation. You're immediately working with actual API endpoints, seeing how requests and responses flow in realistic scenarios. Authentication comes early because you can't test much without it. We spend time on headers, status codes, and content negotiation—boring until you need to debug why a 401 keeps appearing.
Building Test Frameworks
Around week three, you start constructing your own test suites. We use JavaScript and Python since they're common in testing roles, but the principles transfer. You'll write helper functions, manage test data, and deal with asynchronous operations. This is where most students hit their first wall—and where having experienced instructors nearby makes a difference.
Real Integration Patterns
The final stretch focuses on complex scenarios: testing microservices that depend on each other, handling message queues, validating webhook deliveries. You work with incomplete documentation and ambiguous requirements because that's what real projects look like. We include sections on contract testing and API mocking—tools that save weeks of debugging time once you understand them.
What Students Tell Us
I'd been doing manual testing for four years and wanted to transition into automation. Most courses were either too basic or assumed I already knew programming. Veltrion started exactly where I was and built from there. Six months after finishing, I'm writing test automation for a fintech company.
Linnea Svedberg
QA Automation EngineerNot everyone comes from a testing background. We've had developers looking to understand quality better, project managers wanting technical depth, and career changers from completely different fields.
The common thread? They're willing to work through challenging material and ask questions when stuck. Integration testing isn't easy, but it's learnable if you put in consistent effort.
Most students complete the program in eight to twelve months while working full-time. Some go faster, others take longer. The self-paced format means you control the timeline.
