Build the future. We'll handle the past.
Legacy applications modernized. Engineers building again. Outcome-based pricing.
Trusted by companies across industries
Sound familiar?
Afraid to deploy
The app hasn't been updated in years. Every change risks breaking something. Deployments are manual and terrifying.
Can't hire for it
Nobody wants to work on old Java. The developers who know the system are leaving. New hires take 6 months to ramp up.
Consultancies want 12 months
Every firm that pitches you wants a year-long engagement with a 6-person team. You need results in one quarter.
Three ways to work with us
Start with strategy calls. Scale up when you see the ROI.
Targeted Project
Modernize one application or automate one workflow. Fixed scope, 2 to 4 months, outcome-based pricing.
- ✓ One legacy application modernized
- ✓ Fixed scope and timeline
- ✓ Outcome-based pricing
- ✓ Full documentation included
- ✓ Team training on the new system
What it looks like in practice
Replaced weeks of manual document coordination with a self-serve AI form. What took multiple people and endless emails now takes one person 10 minutes.
Modernized a legacy Java application while training the team on AI-powered development. The app ships features again.
GDPR compliance platform on legacy Java Spring. Rebuilt, stabilized, and handed off a working system with full documentation.
The math
Two ways to look at legacy modernization
- ×Six figures per year in maintenance on systems that don't improve
- ×Developer turnover because nobody wants to maintain legacy code
- ×Features your customers need that you can't ship
- ×Security vulnerabilities compounding every quarter
- ×Technical debt that gets more expensive the longer you wait
- ✓3 to 4 month timeline, start to finish
- ✓Outcome-based pricing tied to results you can measure
- ✓Your team upskilled on the new system and modern workflows
- ✓Modern stack your developers actually want to work on
- ✓Full documentation and runbooks included
15 years of enterprise delivery
"Partnering with Matt over several years at eVestment was a seamless experience. I never had to worry about any project he was involved in. His work was always executed quickly and thoroughly. He effectively managed an entire product line by himself, demonstrating exceptional reliability and expertise."
"During his time at Balto Software, Matthew consistently impressed me with his expertise in robust, efficient, and scalable solutions for our projects. His proficiency in crafting solutions and AWS made him an invaluable member of our team."
"What stands out is the quality of Matt's solutions. When others might take shortcuts, Matt engineers clean, maintainable solutions that stand the test of time. His code is something you can build on, not something you have to work around."
Hi, I'm Matt.
15 years building enterprise systems. I've worked with companies across financial services, pharma, ad tech, and music rights.
I started Katyella because legacy modernization projects don't need 6-person teams and year-long timelines. One person with the right experience and AI-powered tooling can deliver what used to take a department.
Every engagement comes with documentation, team training, and a system your developers can actually maintain after I'm done.
Book your strategy call
We'll assess your legacy situation and show you the ROI of modernizing. No commitment, no pitch deck. Just 5 conversations about your business.
Book a Strategy CallOr email matt@katyella.dev