Business Software Solutions
ERP and CRM that fit your company and your sector, multi-tenant SaaS and field management systems; GIS and map integration for municipalities and public bodies.
I build business-critical software for companies, and I review systems that have slowed down or are struggling to grow, then fix what holds them back. Before an investment or a major decision I carry out independent technical reviews, and I join teams as a fractional software architect. Since 2020 I have led the architecture of a field management system used by several municipalities, and I bring experience built up since 1992.
The first call is free: a 30-minute intro call.

1992
the year I started writing software
ERP and CRM that fit your company and your sector, multi-tenant SaaS and field management systems; GIS and map integration for municipalities and public bodies.
GraphQL since 2016; performance-focused PostgreSQL, real-time data streams and server management.
From business analysis and software architecture to getting software ready for market; managing long-running projects.
I join your team from outside for a fixed monthly fee: architecture decisions, code review and knowledge transfer to your team. From €2,400 per month for 1 day a week (excl. VAT).
I review your existing system independently and draw up a step-by-step migration plan. Delivered in 5-7 business days, from €3,000 (excl. VAT).
Today you can have something working within a few days, and that is genuinely valuable. But whether software stays up for years, holds together as it grows and protects your data still depends on the same things: the right questions, a solid foundation and someone who takes responsibility. I did this work before AI; now I can deliver the same care faster.

I use it every day: it speeds up repetitive code, tests and documentation. I read and test every line it produces; the responsibility stays with me.
Data model, architecture and security decisions require having seen what broke, and where. That experience comes from making those decisions since 1992, and sometimes getting them wrong.
I tell you up front what I will do, how long it will take and where I see risk. If I think something will not work for you, I tell you that too.

“We have trusted Umut with Pestpoint since 2020, and we have not regretted it for a single day.”
Cavit Özananar
CEO, Pestpoint
Thinking about a similar project? Tell me briefly and we can look at it together.
Get in touchA multi-tenant, GIS-based field management system whose architecture I designed from scratch and have run since 2020. It brings municipalities’ pest and vector control operations onto a single platform, from citizen requests to work orders and from GPS tracks to the products used; field teams work through a mobile app.
Admin Panel
Map
Field App
Mobile
GraphQL API
Live Data and Subscriptions
Database
Per-Tenant Data
Cache
Real-Time Events
A full stack Laravel e-commerce platform I have been developing since 2020: a biocidal product catalog, order and payment flows and an admin panel. I carry all technical responsibility, from the code to the server.
Project details1992
I discovered software.
2006
I founded my own agency and ran it for eleven years.
2016
I started using GraphQL in production.
2018
Smart home systems at Votec: sensors and embedded Linux.
2020
I designed the Biocidal architecture from scratch and started developing Pestpoint.
2025
A real-time, queue-based analytics platform for the EVE Online community.
KillReport · EVE Online community tool
Pestpoint · Full stack Laravel
Biocidal · Abe Biyosidal
Fill in the form and I will get back to you within 1 business day. The first call is free and takes 30 minutes. If you prefer email:
Once the scope is clear, I can start within 1 week.