I'm Dennis Martinez
Helping startups build high-quality applications, from testing to development to deployment
Meet Dennis
As a freelancer and consultant, I work with tech startups across the globe to help them build effective, high-quality software. It's my mission to help these companies get their idea off the ground quickly and in the right way for the long haul.
For over 18 years, I've worked with startups and small organizations across the globe to help them successfully build effective, high-quality software. My experience comes from working with early-stage companies in New York City and San Francisco and remotely with dozens across the globe.
My main areas of focus are full-stack web development, test automation, and DevOps. I love sharing my thoughts and expertise around test automation on my blog, Dev Tester, and have written a book on the same topic.
What others say about working with me
We've benefited a lot from Dennis's skill and expertise in backend development, DevOps, automated testing, and CI/CD. Dennis is not only reliable, he handles challenges with a mix of rational problem-solving and big-picture thinking. He's recommended solutions and chosen technology that fits our context and needs as a startup. His eye for process and detail is to be envied and has become the gold standard for members of our development team.
Allen W.Co-Founder @ Sollective K.KDennis is one of those guys who can do just about anything. We worked together on a pretty tricky port of a Rails/Ember.js app from Heroku to being able to run standalone in Docker and he solved all of the difficult parts. Hire him as quickly as possible.
Jay G.Ecor Rouge
Dennis was extremely generous in sharing his knowledge and genuinely wanted to help us out. He looked at our situation and within hours was able to tell us why what we were trying to do wasn't working, what needed to be fixed, and gave us alternative solutions if we wanted to change course. Dennis provided exactly the type of expert guidance we desperately needed.
Cindy W.Senior Technical Business Analyst @ Onsite Rental GroupOver the years, Dennis has been easy to work with, always patient to explain what he was doing, and was very dependable on results. He went the extra yard to find a solution which kept our application up and running, plus ensured we can continue to do so without interruption into the future. I highly recommend Dennis, without reservation, for any development job, big or small. He is great to work with!
Richard HalpernFounder @ EcoApprentice
Over the years I have worked with Dennis on a variety of custom software projects, across the full stack of backend and front end applications, for a number of different clients. In every scenario, he is one of the best software engineers on our teams in terms of pragmatic problem solving, consistent communication, and on-time delivery of the needed solutions. I cannot recommend Dennis highly enough for anyone considering to bring him on their project or team.
Randy BurgessVP of Technology @ MPI Media GroupAlways a pleasure to work with! Dennis is highly professional and very quick to respond. I wish all my contractors (and employees) were as incredible as him.
Project Manager @ Mogu Technologies
Some of my work
End-to-End Testing with TestCafe
Learn how to build robust end-to-end tests on a real web application using TestCafe. Let the End-to-End Testing with TestCafe book be your guide to learn how to use TestCafe for writing effective end-to-end tests for any web application. Improve the quality of your code, boost your confidence in your work, and deliver faster with fewer bugs.
Dev Tester
The Dev Tester blog contains articles about automated testing and test automation. Since 2020, I've been writing to help others become a better tester.
Let's talk
Whether you want to schedule a call with me, have a question I can help with, or just want to say hi, send me a message and I'll get back to you in less than 24 hours.
