Senior Java Delivery for Your Client Engagements
I modernize legacy Java systems for regulated companies. Agencies bring me in when the system has to ship and the timeline can't slip.
Who This Page Is For
Delivery leads, practice leads, and staffing partners at consultancies, SIs, and agencies. You've won modernization work, or you're about to pitch it, and you need a senior Java hand who can own the workstream without hand-holding.
Every engagement I've delivered has come through this channel. It's not a side offering. It's how I work.
What You Get
A senior hand, not a resume
Fifteen years in exactly this work: Java EE, GWT, Struts, and old Spring monoliths to modern Spring Boot, microservices, and cloud. The person you evaluate is the person who does the work.
End-to-end ownership
Hand me the workstream and it's handled: understanding the existing code, planning the migration, delivering it, and documenting it. You don't manage me line by line.
Regulated-industry fluency
Financial services, ad tech privacy, and pharma. I've shipped on systems where compliance is non-negotiable, and I won't put your client relationship at risk to move faster.
Team-level throughput
I deliver at the throughput of a small team. That's what makes a senior rate worth it on your margins: one bill rate, more than one person's output.
How the Engagement Works
Your paper, your client, your brand
I work as your subcontractor. White-label is fine. Your client sees your firm delivering; my job is to make you look good in that room.
Flexible structure
Corp-to-corp through my LLC (Katyella LLC, registered in Virginia), project-based or embedded on a longer engagement. US clients only, with East Coast business-hours overlap every day.
Bench without headcount
Keep me in your back pocket for overflow and pitch support. When modernization work lands, you have a senior specialist you can put in front of the client that week, without carrying the cost between engagements.
The Work to Bring Me
- ✓Legacy Java modernization: Java 8 era codebases to 17/21, Spring Boot 1.x/2.x to 3.x and 4, javax to jakarta
- ✓Framework migrations off Java EE, GWT, Struts, and aging application servers
- ✓Monolith decomposition where it's justified, and monolith stabilization where it's not
- ✓Regulated clients: finance, ad tech privacy, pharma, and anywhere compliance constrains how the work gets done
- ✓Rescue work on offshore-built codebases that need to be understood before they can be changed
The proof: I spent eight years modernizing an 11-year-old regulated privacy platform, Java 8 to 21 and Spring Boot 1.4 to 3.5, while it kept shipping compliance features the whole time. Read the case study.
Have a Client Engagement in Mind?
Twenty minutes is enough to tell whether I fit your bench. No pitch deck on either side.