Nikola V.

Nikola V.

Serbia
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About Me

Nikola is a versatile senior engineer with over 7 years of professional experience building and maintaining production-grade systems using primarily React, NextJS, Angular, Node.js on AWS, Express, NestJS, GraphQL & GoLang. He has experience owning core features across multiple platforms, including workforce management, hiring workflows and clinic operations, taking responsibility for the architecture, designing API layers, development, deployments and long-term stability. His work often involves improving performance, simplifying complex flows, reducing infrastructure issues and raising the overall reliability of the product. He's comfortable moving between frontend, backend and infrastructure work. Nikola works best in teams where engineers collaborate directly, openly, and share knowledge regularly.

AI, ML & LLM

Tailwind

Frontend

JavaScript React Angular Next.js

Backend

Express Node.js

Database

PostgreSQL MongoDB MySQL

DevOps

Docker AWS

Other

Typescript Liquibase Golang Graphql NestJS

Work history

Nortik Software Solutions
Senior Fullstack Engineer
2024 - 2026 (2 years)
Remote

  • Developed a NodeJS-based HR Compliance & Scheduling Platform using Express Nest, React and PostgreSQL.

  • Worked on core backend modules, API design, role-based access control, cron-driven scheduling flows.

  • Implemented reliable data-sync processes and optimized slow endpoints to improve overall platform responsiveness.

Node.jsExpressReact PostgreSQL
Codolis
Senior Fullstack Engineer
2020 - 2024 (4 years)
Remote

  • Developed a veterinary clinic management platform, building appointment scheduling, patient records and billing using Angular, NodeJS and Liquibase.

  • Owned frontend (Next), backend (Node.js), AWS infrastructure and a PWA with desktop notifications, plus an embeddable widget and Al-assisted automation features for a modular workforce and task-management platform.

  • Integrated authentication and payment flows using GoLang & React, including Al document parsing, deployments, code reviews and system stability.

AngularNode.jsLiquibaseNext.jsAWSGolang React
VegalT
Fullstack Engineer
2019 - 2020 (1 year)
Remote

  • Contributed to development and release of HeartCount, a web application in the HRTech field, used for pulse surveys and real-time analytics of company's employees.

  • Assisted in implementation and debugging across NodeJS, Nest, React and JavaScript-based projects.

  • Developed a fullstack web application for a German client, contributing to backend tasks related to API development using Node.js, AWS and GraphQL.

Node.jsReact JavaScriptAWSGraphql

Education

Education
Bachelor's degree in Software Engineering
Faculty of Technical Sciences (FTN)