Build and deliver high-quality applications, from development to testing to deployment

Expert freelance services for software development, test automation, and DevOps

Building high-quality, reliable products in a fast-paced company is hard

At a fast-paced organization, you typically focus on how quickly you can bring your company's vision to life. Unfortunately, it's not as simple as putting all your focus into delivering your product. Startups have a seemingly infinite number of areas pulling at the entire team's attention. With scarce resources, you must balance planning your roadmap, developing new features, fixing bugs, customer support, and much more.

In the middle of all the chaos, you want to build a high-quality product that won't create headaches for you or your customers. In today's world, the expectations of your customers are lofty. They want your service to provide a fast, reliable experience while you deliver new features to delight them. But to achieve that, it takes lots of time and effort. Chances are you won't have the capacity to spare to focus on the current and long-term quality of your applications.

Most tech companies feel like they need to sacrifice quality over speed, but it doesn't have to be that way.

You need a freelancer with the right skills and experience who can integrate quickly with your team to improve the quality of your applications.

As a software engineer and tester working primarily with startups, I understand the unique challenges and needs of early-stage companies. I also know the benefits of moving fast and rapidly delivering products that delight your customers. With the experience and skills acquired throughout my career, I can help companies with little time to waste and who need someone to come in and provide value as quickly as possible.

Meet Dennis

As a freelancer and consultant, I work with tech organizations worldwide 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 19 years, I've worked with startups and other tech companies 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, San Francisco, Tokyo, and remotely with dozens of organizations around the world.

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.

I also have deep knowledge of Amazon AWS services and Kubernetes as a AWS Certified DevOps Engineer, Certified Kubernetes Administrator, and AWS Certified Developer along with additional DevOps certifications.

Dennis Martinez - Photo

Latest Articles

Software Engineering and DevOps articles containing expert insights, tutorials, and resources for tech professionals

Article cover for 20 Lessons Learned From 20 Years in Tech: Part 2
Tech Career
20 Lessons Learned From 20 Years in Tech: Part 2

More reflections and lessons learned from a 20-year journey in tech to help guide you on your own path through the industry.

Article cover for 20 Lessons Learned From 20 Years in Tech: Part 1
Tech Career
20 Lessons Learned From 20 Years in Tech: Part 1

Some lessons that might help you navigate your career and personal life, based on a 20-year journey in the tech industry.

Article cover for How Testers Help Developers Elevate Their Productivity
Software Development
How Testers Help Developers Elevate Their Productivity

Testers are often seen as an obstacle to progress, but they can be the most powerful tool to developer agility in the software development lifecycle.

Free Resources

Dive into our collection of free resources to help your business excel

The Hidden Costs of Ineffective Test Automation - Guide Cover
The Hidden Costs of Ineffective Test Automation

Your test automation might cost you much more money than you expect. Get this free guide today to learn about these problems and take steps to maximize your investment in automated testing.

Hiring a DevOps Engineer: What You Need to Know - Guide Cover
Hiring a DevOps Engineer: What You Need to Know

Find out how to hire the right DevOps engineer with this free guide to boost your organization's ability to deliver high-quality products and ensure it can tackle any technological challenges that come its way.

Simple Yet Powerful Ways to Shrink Your AWS Expenses - Guide Cover
Simple Yet Powerful Ways to Shrink Your AWS Expenses

Are you tired of receiving hefty bills from AWS every month? Download this free guide and begin taking small steps to help reduce your AWS bill and cut down on unnecessary cloud expenses today.

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.K
    • Dennis 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 Group
    • Over 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 Halpern
      Founder @ 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 Burgess
      VP of Technology @ MPI Media Group
    • Always 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