Web, Mobile, AI, Cloud and End-to-end software engineering for startups and enterprises.
Development
Maintenance
Trusted By Clients & Partners Worldwide
Real products.Real outcomes.
A few of the products we've shipped and rescued.
Built for the way good teams ship
Senior team only
A small, senior team - not a rotating cast of contractors.
Micro-delivery sprints
Working software every 1-2 weeks, with regular reviews - not a black box.
Direct team access
We work inside your tools - Slack, Jira, Git - as part of your team.
Rigorous code quality
Code reviews, automated testing, and clear documentation on every project.
24/7 Support & monitoring
We don't disappear after launch - ongoing support and monitoring are built in.
Flexible engagement
From a single sprint to a long-term partnership - no lock-in contracts.
Domain experiencethat compounds
Idea to launch, step by step
From first conversation to launch day - and beyond.
Start the conversation
Tell us your idea, problem, or goal. No pressure, just a real conversation.
Understand & plan
We break down requirements, timelines, and the best approach together.
Design the experience
UX, UI, and system flows are crafted before a single line of code.
Build in sprints
Development happens in focused sprints with regular updates and reviews.
Test & refine
We test, polish, and fine-tune to make sure everything works perfectly.
Launch & support
We help you launch confidently and stay around to support growth.
Don't take our word for it
Founders and CTOs on what it's like to build with Majstro.
When we set out to build FlighTraq, we knew it had to be more than another flight school app. It needed to be instructor-first, with an adaptive system that learns each student's strengths and gives CFIs real, structured feedback through our 4D Grading System. It also needed to run completely offline in the air, syncing the moment the instructor lands. Kallistotech's team brought the technical skill and dedication to make that vision real, and we're grateful for the effort they put into every part of this build. Instructors and flight schools can subscribe and be teaching within minutes, and we couldn't be more pleased with what they've delivered.

Ruben Escobedo
Founder & CEO, GalaxyDesigns, Inc. flightraq.com
Our legacy RSNC platform simply couldn't keep up with the scale of our events. The team rebuilt it from the ground up, and the difference is night and day. We've already run more than 100 shows on the new platform - from local RSNC events to regional and world championships - serving a rider base of over 30,000, with live results delivered straight to their phones the moment they're posted.

Logan Wolfe
RSNC Events Director
Majstro is a trusted delivery partner for US enterprise clients, providing cloud-native, scalable solutions using modern frameworks, AI-assisted development, and mature DevOps processes - consistently delivering on time and to a high engineering standard.

Ravi Pathirana
CTO, KalistoTech LLC (USA)
FreeRx platform connects members to 1,000+ medications, 24/7 virtual care, and pickup at 70,000+ pharmacies nationwide - none of it works without serious engineering behind it. Working with the team, in partnership with Kallistotech, we went from concept to live web and mobile platforms in just 3 months, with our healthcare partner integrations in place from day one. They matched the urgency of healthcare with the quality it demands.

Gary Wright
IT Director, FreeRx
Questions, Answered
We can typically start within 5-7 business days after the initial consultation. Our fast onboarding process includes team matching, NDA signing, and access setup. For urgent projects, we can sometimes begin even sooner.
Micro-delivery breaks projects into small, manageable sprints (typically 1-2 weeks). You get working features quickly, provide feedback early, and see continuous progress. This approach reduces risk and keeps projects moving even when timelines are tight.
No. We offer flexible engagement models from single sprints to ongoing partnerships. Start with a small project to test our fit, then scale up or down based on your needs. No long-term commitments required.
We adapt to your workflow, not the other way around. We use your tools (Slack, Jira, Git, etc.), join your standups, follow your coding standards, and work in your timezone. Our developers function as an extension of your team.
Every project includes code reviews, automated testing, and comprehensive documentation. We follow industry best practices, write clean and maintainable code, and treat your project like it's our own product.
We offer hourly rates for flexible needs, fixed project pricing for defined scope, and retainer models for ongoing partnerships. Pricing depends on project complexity, timeline, and team size. We provide transparent proposals with no hidden fees.
Yes. We routinely operate as an embedded, white-label team for agencies and consultancies, with appropriate NDAs and communication flows.





