Product development
Web platforms and SaaS products built from scratch, from architecture to launch.
Ticketline · Seatorio · NIT Group
Precision in code. Infinity in ideas.
We build scalable software products.
PiIT is a product engineering company from Belgrade. We design, build and run web platforms, mobile apps and backends for teams that need them to work under real load.
What we ship
- Web platforms SaaS, portals, admin panels
- iOS & Android apps Native and cross-platform
- Smartwatch apps Apple Watch and Wear OS
- Desktop software Apps for office workstations
- Backends & APIs Built for real traffic
From idea to launch
- Discover
- Design
- Build
- Run
Services
From first sprint to long-term ownership.
One team for the whole product: architecture, web, mobile, backend and the support that keeps it running.
Mobile & wearable apps
iOS and Android apps, plus Apple Watch companions when the product needs them.
Ticketline · LimitBreaker
Backends & integrations
APIs, payments, telephony and real-time systems that stay stable under load.
CC Soft · Ticketline
Modernization
Moving legacy software to a modern stack module by module, without stopping the business.
EEP Office · Ticketline
Team extension
Engineers who join your team, your tools and your process, and ship from week one.
Long-term partnerships
Maintenance & support
Monitoring, fixes and new features after launch, so the product keeps getting better.
Nexaro · Print Promo
Work
Products we built and run.
Selected projects for clients across Serbia and the EU, and products of our own.
Ticketline
All-in-one ticketing ecosystem: online shop, box office, mobile app and live entry monitoring.
- Web
- iOS
- Android
Case study
Lumeori
Premium commerce platform with scalable architecture across multiple markets and languages.
- Web
Visit site
LimitBreaker
Subscription training app across phone, web and Apple Watch, with real-time heart rate.
- Web
- iOS
- Apple Watch
- Android · soon
- Wear OS · soon
Case study
NIT Group
Digital ecosystem for NIT Events, NIT Business and more: apps, web platforms and white-label ticketing.
- Web
Case study
Print Promo
E-commerce platform for promo materials, print products, and custom orders.
- Web
Case study
Seatorio
Seat map editor that exports interactive venue plans for ticketing and booking.
- Web tool
Case study
Savaball
Ticketing and interactive seating plan for the Saint Sava Ball at the Hofburg, Vienna.
- Web
Visit site
CC Soft
CC Soft
Internal call-center platform for a real estate company: softphone, call routing, lead automation, and reporting.
- Web
Case study
EEP Office
EEP Office
Practice management system for law firms: cases, deadlines, documents, time tracking, and finances.
- Web
- Desktop
Case study
Industries
Experience where load, money and deadlines are real.
Ticketing & events
Checkout, seating plans, live entry monitoring and event platforms.
Ticketline · NIT Group · Savaball · Seatorio
Commerce
Multi-market storefronts, product catalogs, quotes and custom orders.
Lumeori · Print Promo
Mobility
Online booking, pricing and fleet back office for rent-a-car.
Nexaro
Legal
Cases, deadlines, documents and court filings for law firms.
EEP Office
Sales & call centers
Telephony, call distribution, lead automation and reporting.
CC Soft
Fitness & health
Subscription training apps across phone, web and smartwatch.
LimitBreaker
How we work
Clear process. Fast delivery. Built to scale.
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01 Discover
We map goals, users, constraints and the key architecture decisions.
Scope, estimate and plan
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02 Design
We shape flows and interfaces and agree on what the first release must do.
Clickable design and backlog
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03 Build
Short sprints with working software at the end of each one.
A demo every sprint
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04 Scale & support
We launch, monitor and keep improving performance and features.
Ongoing maintenance
About us
A senior team you talk to directly.
PiIT is a product engineering company from Belgrade. We stay small on purpose: the people who plan your product are the same people who build it and keep it running, with no account managers in between.
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Ljubiša Ivanović
Founder
Leads the company and works directly with clients on what to build and why.
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Aleksandar Potić
Head of Development
Owns architecture, code quality and the engineering team.
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Vladimir Drobnjak
Head of Product & Delivery
Turns goals into a clear plan and keeps every release on scope and on time.
-
Boris Madžarević
Strategy & Business Development
Builds partnerships and helps clients shape the business case for their product.
Tech capabilities
Modern stack. Production-grade engineering.
Backend
- Laravel
- Filament
- Node.js
- TypeScript
- Go
- Java / Spring Boot
Frontend
- Vue
- Nuxt
- React
- Next.js
- Tailwind CSS
Mobile & desktop
- React Native
- Flutter
- Swift / watchOS
- JavaFX
Data
- PostgreSQL
- MySQL
- Redis
- ClickHouse
- Elasticsearch
Cloud & integrations
- Docker
- AWS
- Twilio
- Stripe
- HealthKit
- Payment gateways
Clients
Trusted by product teams that ship fast.
PiIT helped us modernize and scale our platform after multiple failed attempts. Every milestone was delivered on time, with strong focus on quality and stability.
Ivan Grujičić
CEO, Ticketline
We built a modern e-commerce platform across multiple markets and languages. The PiIT team delivered with precision and consistency.
Gordana Blagojević
Regional Director, Lumeori
Our project required speed, flexibility, and deep understanding — PiIT delivered. The result is a reliable system that exceeded expectations.
Zoran Kostić
Founder, LimitBreaker
FAQ
Short answers. Clear expectations.
What do you build?
Web platforms, iOS and Android apps, desktop software and the backends behind them: ticketing, commerce, booking, internal tools and SaaS products.
Do you work with existing products?
Yes. We take over and improve products already in production, and we modernize older systems module by module without stopping the business.
Can you join as an extension of our team?
Yes. We can work alongside your engineers in your tools and process, or own a product end to end as your engineering partner.
Do you stay after launch?
Yes. We offer maintenance after launch: monitoring, fixes and new features, so the product keeps improving.
How quickly can we start?
After a short discovery call we define the scope together and can usually start with a focused first sprint right after.
Contact
If you're building something serious, let's talk.
Tell us what you are building and where you are stuck. We usually reply within one business day.
- office@piit.rs
- PiIT on LinkedIn
- Belgrade, Serbia