Montisoft is a boutique IT consulting agency with 15+ years of hands-on experience in enterprise software architecture, system integration, and digital transformation — from telecom giants to national-scale government systems.
Montisoft was born from a simple observation: most businesses don't need more technology — they need the right technology, implemented right.
Founded by Mladen Mitrović, a veteran software architect with an MSc in Information Systems from the University of Belgrade, we bring deep technical expertise paired with real-world business acumen. From designing Serbia's Central Registry of Social Insurance — a system that touches millions of citizens — to architecting microservices for European food industry leaders, we've done the work that matters.
We don't do cookie-cutter. Every engagement starts with understanding your business, your constraints, and your ambitions. Then we build exactly what you need — nothing more, nothing less.
From monolith-to-microservices migration to greenfield architecture — we design systems that are maintainable, scalable, and built to last. Spring Boot, Java EE, React — we pick the right stack for the job.
Connecting legacy systems to modern platforms. We've integrated everything from PKI infrastructure to real-time data pipelines. Mule ESB, REST APIs, message queues — whatever it takes.
End-to-end development from database to UI. Java backends, React frontends, Oracle/PostgreSQL databases — delivered with clean code, proper testing, and CI/CD from day one.
Need a technical lead to steer your project? We step in as architects, tech leads, or project coordinators — with proven experience managing national-scale IT projects and cross-functional teams.
Oracle, SQL Server, PostgreSQL, MySQL — we design schemas that perform, optimize queries that crawl, and build data architectures that serve your business goals.
Docker, Jenkins, Git — we set up pipelines that make deployment a non-event. Continuous integration, automated testing, infrastructure as code — so your team ships with confidence.
Technologies we use daily — not just buzzwords on a slide deck.
Led software architecture and integration projects for one of Europe's largest food industry companies. Designed and implemented microservices with Spring Boot, React frontends, and Mule 4 integration layer on Oracle databases.
Built an order management system for Telenor — handling the complexity of telecom order workflows. Full-stack development with Java EE 7, JBoss, React, and PostgreSQL.
Contributed to the Collateral Management Application — a critical piece of financial infrastructure used by major institutions. Worked with Spring, Hibernate, JCache, and JMS for high-performance, reliable financial systems.
Rose from Database Administrator to Assistant Director for IT. Coordinated national-scale projects including Serbia's Central Registry of Social Insurance and the Health Insurance Card system with PKI infrastructure. Managed the portal redesign that was featured on national television.
Started the journey building web applications for online reservations and student administration systems. Participated in multiple hackathons and programming competitions, winning several prizes.
A national-scale system for Serbia — the Central Registry of Social Insurance Contributors, covering employers and insured persons across the country. Responsible for data analysis, cleansing, migration strategy, and coordination of integration services. This system fundamentally improved the accuracy and accessibility of health insurance data for millions of Serbian citizens.
Implemented a complete Certification Authority and PKI system for Serbia's new health insurance card. Designed the card's data set and coordinated implementation across institutions.
2011Full-stack order management system for one of Serbia's largest telecom operators. Java EE 7, JBoss, React, and PostgreSQL.
2017–2019Critical financial infrastructure for collateral management used by major financial institutions worldwide. Spring, Hibernate, JCache, JMS.
2014–2017An Android game that became a viral hit — 2.5 million downloads on Google Play. Proof that great UX and fun can coexist.
2.5M+ DownloadsWhether you need a technical architect for a complex integration, a full-stack team for a new product, or strategic IT advice — we'd love to hear about your challenge.
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