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Valentin-Gabriel Mihai

@valentin-gabrielmiha

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I build and modernize complex web applications across Angular, Node.js, and enterprise frontend platforms.

Romania

Message

At Sense Workplace, I’m independently architecting and building an Angular 21 and PrimeNG 21 frontend to progressively replace a large-scale enterprise HR platform. I’m migrating people management, reporting, documents, and organisation-chart features while enabling legacy and new applications to coexist.

Previously, I built OCR document-processing tools, a landing page builder with A/B testing, and full-stack management applications at DevPlant Cowork and elapseit. My work spans Angular, NestJS, Node.js, Spring Boot, PostgreSQL, serverless deployment, and integrations with APIs including ElasticSearch and PDFTron WebViewer.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Developer

Current

Sense Workplace

Aug 2025 - Present (1 year 1 month)

Architected and built a new Angular 21 / PrimeNG 21 frontend to progressively replace a large-scale enterprise HR platform, taking sole ownership of the migration. Rebuilt shared UI components and custom theming around PrimeNG design tokens.

Angular PrimeNG TypeScript JavaScript HTML CSS Claude Code Migration UI Components Theming

Full Stack Developer

DevPlant Cowork

Aug 2021 - Jul 2025 (3 years 11 months)

Developed an advanced OCR and document processing application with features like document upload/download, structured folder organization, annotation tools, user management, and notifications. Built a landing page builder similar to InstaPage, implementing dashboard, landing pages view, and A/B testing experiments view based on Figma designs.

Angular NestJS PDFTron Figma UX API Development OCR Document Processing

Frontend Web Developer

Gradient Cyber

Jan 2020 - Jul 2021 (1 year 6 months)

Implemented and maintained numerous front-end features for a cybersecurity project, including statistics, charts, data tables, etc. Integrated ElasticSearch API for optimized searching capabilities.

Angular Ruby on Rails Elasticsearch JavaScript HTML CSS Data Visualization

Full Stack Developer

elapseit

Dec 2016 - Jan 2020 (3 years 1 month)

Worked on various full-stack projects including a time tracking/project management application, file management application, and restaurant management system. Involved in front-end development with Angular, JavaScript, HTML/CSS and back-end development using Node.js, Spring Boot, Hibernate, and PostgreSQL.

Angular JavaScript HTML CSS NodeJS Spring Boot Hibernate PostgreSQL Serverless Framework Git Agile

Junior Software Developer

Continental Automotive Romania

Jul 2015 - Feb 2016 (7 months)

Contributed to the development of applications for car infotainment systems, focusing on business logic. Implemented simple tasks and created unit tests in C++ to ensure software quality and functionality.

C++Unit Testing Software Development