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Senior Frontend Engineer with over 8 years of experience designing and building high-performance, user-centric web applications. Skilled in React, TypeScript, and modern frontend frameworks, with expertise in responsive UI, state management, and performance optimization. Experienced in production systems, cloud deployments, CI/ CD pipelines, and collaborating in distributed, remote-first teams.…

Konstantin Troianivski

Full Stack Developer, Back-End Developer, Front-End Developer, +5

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Senior Frontend Engineer with over 8 years of experience designing and building high-performance, user-centric web applications. Skilled in React, TypeScript, and modern frontend frameworks, with expertise in responsive UI, state management, and performance optimization. Experienced in production systems, cloud deployments, CI/ CD pipelines, and collaborating in distributed, remote-first teams.…

Available to hire

Senior Frontend Engineer with over 8 years of experience designing and building high-performance, user-centric web applications. Skilled in React, TypeScript, and modern frontend frameworks, with expertise in responsive UI, state management, and performance optimization. Experienced in production systems, cloud deployments, CI/ CD pipelines, and collaborating in distributed, remote-first teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Romanian, Moldavian, Moldovan

Fluent

English

Fluent

Work Experience

Full Stack Developer at Dashbouquet Development

October 1, 2017 - November 1, 2021

Developed a user management dashboard with React and Next.js (SSR) to improve SEO and performance; migrated a legacy PHP reporting backend to NestJS (TypeScript) with PostgreSQL; built internal admin tools with Vue.js; worked with Angular on frontend and DRF on backend; designed and maintained REST and GraphQL APIs for web and mobile clients; implemented Redis caching and RabbitMQ-based background processing; deployed on AWS (EC2/RDS/S3) and later containerized with Docker and Kubernetes; set up CI/CD pipelines with GitHub Actions and Jenkins; built a data synchronization service with FastAPI (Python) and Elasticsearch; optimized PostgreSQL/MySQL queries; applied DDD and Clean Architecture; mentored junior developers.

Junior Full-Stack Developer at VOIS Romania

July 1, 2014 - September 1, 2017

Built small web features using JavaScript/TypeScript and React; implemented REST endpoints in Java/Spring Boot and Node.js/Express under senior engineers' guidance; fixed bugs and delivered minor enhancements; added unit tests and API documentation to support QA and releases.

Senior Frontend Engineer at Netguru

November 1, 2021 - November 1, 2025

Designed and implemented a scalable, component-driven enterprise dashboard using React, Next.js, Redux/RTK, and Storybook; built real-time dashboards with GraphQL subscriptions and WebSockets; implemented accessible UI with WCAG/ARIA and responsive design; developed PWAs and SEO-friendly pages with Next.js, Vercel, and CDN caching; optimized initial load times via code splitting and lazy loading; led CI/CD pipelines with Docker and automation tooling; supported real-time data processing and offline-first capabilities using GraphQL and caching; collaborated closely with backend and design teams to deliver a polished, scalable UI for thousands of concurrent users.

Frontend Developer at DashBouquet Development

October 1, 2017 - November 1, 2021

Built and maintained core screens of a customer-facing SaaS dashboard using React and TypeScript to deliver analytics and account settings; contributed to performance optimizations and UI consistency across multiple product teams; collaborated with design and backend teams to ensure robust, scalable front-end solutions.

Junior Developer at VOIS Romania

October 1, 2014 - September 1, 2017

Built responsive mobile-first UI components using React and Tailwind CSS; implemented client-side routing and state management; integrated RESTful APIs and contributed to improving cross-browser compatibility.