Custom software for startups
We design, build, and maintain custom software, SaaS products, and integrations — for local companies and international partners. From first sketch to production.
01 — Services
Three ways we build value
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Custom development
Business systems, internal apps and tools shaped around your processes — not the other way round. Web, API and databases under one roof.
ERP · CRM · internal tools
↗
SaaS products
From MVP to a scalable product: multi-tenant architecture, billing, onboarding and analytics. We build it like it is our own product.
MVP · scaling · DevOps
⇄
Integrations
We connect systems that do not talk to each other: ERPs, fiscalization, payment systems, external APIs. Data flows, manual work disappears.
API · sync · automation
02 — Process
A predictable path from idea to production
/01
Discovery
A workshop on goals, users and processes. Output: a clear scope and estimate.
/02
Design
A clickable prototype and system architecture before the first line of code.
/03
Development
Two-week sprints, a demo every cycle. You always know where the project stands.
/04
Launch & support
Production, monitoring and SLA maintenance. We do not disappear after delivery.
technologies we work with
03 — Work
Selected case studies
Confidential Reporting System
A platform for anonymous wrongdoing reports — employees report without revealing their identity while organisations meet European whistleblower-protection obligations.
EkoZapis
A public register of environmental problems in Croatia — report pollution with photo evidence, follow publicly what happened to the report, and see resolved…
Velum
A self-hosted smart home system on ESP32 — a HomeKit bridge driving relays, lights and sensors straight from the distribution cabinet, with wireless nodes…
04 — Plans
Collaboration that fits the stage you are in
project
Fixed price
A clearly defined scope, timeline and budget. Ideal for MVPs and systems with known requirements.
- fixed budget and timeline
- spec before kickoff
- 6-month warranty
most popular
flexible
Time & materials
Hourly rate for upgrades, consulting and projects where scope emerges as you go.
- start within 2 weeks
- monthly time reports
- no long-term commitment
05 — Blog
From the blog
Where Not to Store a JWT in Angular (and What to Do Instead)
localStorage is the most common and the worst place for a token. The pattern we use when an identity leak…
Why Your Croatian and German Characters Turn Into “u0161” in WordPress
How wp_json_encode() without JSON_UNESCAPED_UNICODE and update_post_meta()'s automatic unslash together turn š and an em dash into literal "u0161" and "u2014".
How Custom Automation Turns Operations Into Software
A practical guide to designing workflow automation that connects tools, reduces manual work, and keeps operations visible.
06 — Contact
Tell us what you are building
We reply within one business day. The first conversation is free and no-obligation.
or reach us directly: contact@sakac.tech