Software engineering for what comes next
Your app works.
Now make it safe to rely on.
You built something valuable. We work with you to make it secure, tested, documented, and ready for the people who depend on it.
Custom software development and AI-built app recovery
We build custom software—and make AI-built apps dependable.
Sarolta builds new software and recovers applications created quickly with AI. We apply proven SDLC practices, testing, security, and practical AI-native methods so the result is reliable, maintainable, and ready for real users.
Start the conversation
How can we help you?
Bring a working app, a vibe-coded prototype, or an idea. We will help you identify the next practical step.
Build custom software
I have an idea or concept and need it built.
We turn the people, workflow, and outcome you have in mind into a practical product plan before the wrong code gets built.
Repair and complete an app
I have an existing app that needs work.
Whether it was commercially built or vibe-coded, we find what is working, fix what is fragile, and complete the parts needed for real use.
Choose the destination
What does your app need to become?
Choose the closest outcome. We shape the work around your app, your people, and the way it needs to be used.
Personal apps
For your own work or daily life.
A suitable build can include
- Fixing crashes and unreliable flows
- Features you actually need
- Clearer screens and safer updates
Proof of concept
For making a partly working business idea real in front of people.
A suitable build can include
- One credible end-to-end journey
- Features that make the idea clear
- Repeatable setup and data
MVP
For early users and product learning.
A suitable build can include
- Tests for critical journeys
- Access where needed
- Deployment and feedback
Shippable product
For release, sale, and support.
A suitable build can include
- Security and accessibility
- Performance and release checks
- Documentation and handover
SaaS product
For customer-facing software.
A suitable build can include
- Identity, tenancy, and billing
- Monitoring and controlled release
- Recovery and incident readiness
Business & critical systems
For teams, operations, and high-consequence work.
A suitable build can include
- Roles, audit trails, and integrations
- Clear ownership and monitoring
- Resilience and recovery planning
Evidence from the work
Working software needs proof you can inspect.
A few examples of the systems, operating views, and delivery work behind Sarolta engagements.
AI-native delivery
BuildFactory
A delivery system designed to turn working ideas into dependable software.
SaaS and web platforms
CompleteSender
Operational clarity for a complex, multi-organisation mail platform.
SaaS and web platforms
PageConverter
A widget-aware HTML-to-WordPress and Elementor conversion workflow.
Client perspective
What clients say after the work is underway.
Client quotations will be added here after written approval. These are native Elementor Testimonial widgets, ready for that content.
Sarolta helped us turn a promising concept into a plan we could actually build against. The decisions were practical, the work stayed visible, and we always knew what came next.
We had a working application, but it needed a clearer path to being reliable in day-to-day use. Sarolta helped us focus the repairs, testing, and handover on what mattered most.
The team brought a disciplined engineering approach without making the process feel heavyweight. We could see the software improving and make informed decisions as the work moved forward.
How we work
Use AI for leverage. Keep the work accountable.
AI can accelerate exploration and implementation. Clear scope, working demonstrations, testing, and usable handover keep that speed connected to the outcome you need.
01 — Make the next decision clear
Start with what is real.
We look at the product, people, constraints, and evidence already in front of us.
02 — Build and check in the open
See the work as it develops.
You review meaningful progress through working software, focused checks, and direct conversations.
03 — Leave the product stronger
Keep the knowledge.
You receive the code, decisions, release guidance, and operating knowledge that make the work usable.