Marko P.

• Udviklet og bygget skalerbare backend systemer, der understreger event-drevet arkitektur, API integrationer og performance tuning.
• Leveres tilpassede løsninger ved hjælp af Golang, PostgreSQL, og Redis, anvender moderne backend praksis til at opfylde kundernes behov.
• Sikrede en sikker og holdbar infrastruktur, herunder CI/CD-rørledninger og overvågningssystemer.
• Opretholdelse af aktivt engagement i hele udviklingslivscyklussen, lige fra krav til indsættelse.

• Bygget og implementeret en omfattende integration med Pipedrives API, der giver brugerne mulighed for at se, synkronisere og redigere kontakter direkte på platformen.
• Migrerede og forbedrede HubSpot CRM-integrationsmuligheder, samtidig med at der opretholdes en bagudrettet kompatibilitet og indføres bredere systemforbedringer.
• Udviklet effektiv data-synkroniseringslogik i Go ved hjælp af GORM og PostgreSQL, hvilket sikrer hurtig og pålidelig adgang til eksterne CRM-data.
• Implementeret robust brugerspecifik dataadgangskontrol, der understøtter flere CRM-konti og tilladelser pr. session.
• Arbejdet med RESTful arkitektur, autentificering strømme, og data mapping logik under stramme deadlines.
• Øget vedligeholdelse af platformen ved at skabe modulære tjenester, skrive enhedstest, og dokumentere datastrømme.

• Bygget højtydende video-tjenester med Go, der understøtter real-time HLS streaming gennem brugerdefineret CDN infrastruktur.
• Reduceret API svartider med 40% ved hjælp af forespørgsel optimering og Redis-baserede caching strategier.
• Migrerede ældre tjenester fra Node.js til Golang, skabe en brugerdefineret API ramme og forbedre skalerbarhed.
• Led real-time DRM-krypteringsintegration (FairPlay, Widevine), sikrer sikker levering af indhold på tværs af enheder.
• Løst over 100 produktionshændelser, forbedre observerbarhed med forbedret logning og brugerdefinerede værktøjer.

• Udviklet og vedligeholdt distribuerede Java-baserede mikrotjenester, der håndterede real-time AI data integration rørledninger.
• Designet CI/CD arbejdsgange ved hjælp af Jenkins og Bash, hvilket reducerer implementeringstiden betydeligt på tværs af iscenesættelses- og produktionsmiljøer.
• Deployed containerized systemer på GCP og Oracle Cloud via Kubernetes, sikre modstandsdygtighed og skalerbarhed.
• Opsæt Prometheus og Grafana dashboards med brugerdefinerede advarsler til at overvåge kritiske tjenester og forbedre systemets observabilitet.
• Implementeret sikker JWT-baseret login og opfrisk token management for API adgangskontrol.
• Håndterede asynkrone opgaver ved hjælp af RabbitMQ mellem tjenester, forbedre modularitet og svartider.

EZ Booker is a mobile-first platform that enables real-time bookings for local tours and activities. Marko was hired as a contractor to develop and launch the company’s mobile applications.

• Independently developed Android (Java) and iOS (Swift) applications from the ground up, including essential features like booking flow and location-based recommendations.

• Integrated mobile apps with backend APIs for live tour availability, user authentication, and push notifications.

• Managed deployment pipelines and successfully launched both apps on Google Play and the Apple App Store.

• Delivered secure and high-performance mobile experiences with minimal bugs, supporting early adoption of the platform.

KING ICT is a leading systems integrator in Croatia, working with government and enterprise clients. Marko contributed to developing a traffic offense record system for the Croatian Ministry of the Interior.

Built Java/Spring Boot-based backend services to manage traffic violations, searches, and reporting functions.

Managed Oracle DB schema design and optimized complex queries for data accuracy and performance.

Developed React.js frontend modules and admin interfaces with accessibility and security considerations.

Collaborated with legal and engineering teams to ensure compliance with data protection requirements and system integrations.

Early-stage development of the EZ Booker web platform during its initial MVP phase. Marko joined as an intern and contributed to both backend and frontend enhancements.

• Developed core PHP logic for managing reservations, availability, and accommodation listings.

• Designed and optimized MySQL queries and data structures to improve storage efficiency and query speed.

• Created responsive HTML/CSS layouts and implemented client-side logic using vanilla JavaScript.

• Fixed bugs, added new features, and worked closely with senior engineers during code reviews and project planning.

Pixel Design is a local development agency that offers web and mobile services to businesses and public institutions. Marko completed two co-op terms through RIT, working on real client projects for the municipality and SMEs.

• Built Android and Xamarin-based mobile applications to enhance service delivery for city departments and local vendors.

• Delivered client websites on WordPress with SEO-optimized structure, boosting visibility and usability.

• Participated in end-to-end product delivery, including requirements gathering, UI prototyping, development, and deployment.

• Gained practical experience with cross-platform development and accessibility best practices.