Software Engineering, Infrastructure, and Testing
Ship code confidently, from development to deployment.
AI tools have made it easier to ship fast. I help you ship right. Your team can now generate code faster than anyone can review it. I've spent 20+ years on the part AI hasn't made any easier: knowing what's safe to ship and what will come back to bite you.
Services
Fractional Tech Lead
The senior engineer your AI-assisted team is missing, on a monthly retainer. I make the architecture calls and set the standards your developers and their AI tools work from, so problems get caught before they turn into pull requests.
Heroku Exit Plan
Heroku is in maintenance mode and the bill keeps growing. I move you to infrastructure you control, usually for 60-80% less, without the surprises of a first migration.
Testing Assessment
More tests don't mean more confidence. This fixed-price review shows you what your suite really covers and where your testing effort should go instead.
Hi, I'm Dennis Martinez
I've been building software for over 20 years at startups across the globe. Most of that time has gone into backend systems in Ruby on Rails, plus the infrastructure and testing practices that keep them running and keep teams shipping.
I use AI tools every day, which is how I know where they fall short. They're great at writing code and much worse at telling you whether you should be building it at all. That call gets easier once you've watched a lot of software break in production.
What Clients Say
"Dennis is one of those guys who can do just about anything. We worked together on a tricky port of a Rails app from Heroku to Docker and he solved all of the difficult parts."
"We've benefited a lot from Dennis's skill in backend development, DevOps, automated testing, and CI/CD. His eye for detail has become the gold standard for our team."
"One of the best software engineers on our teams in terms of pragmatic problem solving, consistent communication, and on-time delivery."
Ready to ship with confidence?
Book a free consultation and we'll talk through what's keeping you from trusting what you ship.