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Full-stack developer with 7 years of experience building and shipping end-to-end web applications using TypeScript, React/Next.js, .NET, and NestJS. I’m comfortable owning features end to end—from database schema and API design to UI implementation—and turning ambiguous requirements into reliable, maintainable systems. I focus on clean architecture, strong typed contracts across the stack, and scalable yet simple solutions. I also enjoy performance work (e.g., caching and predictable APIs), and collaborating across web and mobile through React Native while delivering production systems.…Full-stack developer with 7 years of experience building and shipping end-to-end web applications using TypeScript, React/Next.js, .NET, and NestJS. I’m comfortable owning features end to end—from database schema and API design to UI implementation—and turning ambiguous requirements into reliable, maintainable systems. I focus on clean architecture, strong typed contracts across the stack, and scalable yet simple solutions. I also enjoy performance work (e.g., caching and predictable APIs), and collaborating across web and mobile through React Native while delivering production systems.

Karlo Starčević

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Full-stack developer with 7 years of experience building and shipping end-to-end web applications using TypeScript, React/Next.js, .NET, and NestJS. I’m comfortable owning features end to end—from database schema and API design to UI implementation—and turning ambiguous requirements into reliable, maintainable systems. I focus on clean architecture, strong typed contracts across the stack, and scalable yet simple solutions. I also enjoy performance work (e.g., caching and predictable APIs), and collaborating across web and mobile through React Native while delivering production systems.…Full-stack developer with 7 years of experience building and shipping end-to-end web applications using TypeScript, React/Next.js, .NET, and NestJS. I’m comfortable owning features end to end—from database schema and API design to UI implementation—and turning ambiguous requirements into reliable, maintainable systems. I focus on clean architecture, strong typed contracts across the stack, and scalable yet simple solutions. I also enjoy performance work (e.g., caching and predictable APIs), and collaborating across web and mobile through React Native while delivering production systems.

Available to hire

Full-stack developer with 7 years of experience building and shipping end-to-end web applications using TypeScript, React/Next.js, .NET, and NestJS. I’m comfortable owning features end to end—from database schema and API design to UI implementation—and turning ambiguous requirements into reliable, maintainable systems.

I focus on clean architecture, strong typed contracts across the stack, and scalable yet simple solutions. I also enjoy performance work (e.g., caching and predictable APIs), and collaborating across web and mobile through React Native while delivering production systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Croatian

Fluent

English

Advanced

German

Intermediate

Work Experience

Full-Stack Developer at Tomsoft d.o.o.

January 1, 2025 - Present

Built and maintained production full-stack features across .NET backend (GraphQL and REST controllers) with Redis caching and React/React Native frontends. Owned work from data model through API to UI. Delivered a document management system with search and role-based access control. Delivered a platform for electronic exchange and long-term archiving of business documents for compliant B2B interchange. Developed a production customer loyalty mobile app with a single cross-platform React Native codebase for iOS and Android. Designed typed GraphQL/REST API contracts and applied Redis caching to keep frontends responsive and backend behavior predictable under production load.

Frontend Developer and RPA at Generali osiguranje d.d.

May 1, 2022 - December 1, 2024

Built enterprise frontend for a document management system using React and MUI. Developed interactive data visualization tools, including a crash analysis platform, supporting internal stakeholders with faster analysis and decision-making. Automated complex business processes using Power Apps and Power Automate to reduce manual workload and improve operational efficiency. Designed and implemented AI/RPA workflows integrating OCR and LLM-based solutions to streamline document processing and data extraction.

Information Technology Student (Student Support / IT) at Generali osiguranje d.d.

October 1, 2019 - April 1, 2022

Provided technical support to 700+ employees via ticketing and remote troubleshooting tools, ensuring minimal downtime and smooth operations. Managed AD user provisioning, permissions, and group policies to maintain secure and organized IT infrastructure. Deployed and configured 400+ PCs and laptops including software installation, system updates, and network setup.