Senior Frontend Engineer with 20+ years of experience building scalable web apps in React, Next.js, and TypeScript. Passionate about clean architecture, developer experience, and helping teams ship fast and maintainable code.

Cristian Trifan

Senior Frontend Engineer with 20+ years of experience building scalable web apps in React, Next.js, and TypeScript. Passionate about clean architecture, developer experience, and helping teams ship fast and maintainable code.

Available to hire

Senior Frontend Engineer with 20+ years of experience building scalable web apps in React, Next.js, and TypeScript. Passionate about clean architecture, developer experience, and helping teams ship fast and maintainable code.

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Experience Level

Expert
Expert
Expert
Intermediate

Language

English
Fluent

Work Experience

Senior React Developer at Frontend Mastery
June 2, 2023 - Present
Defined the architecture and implemented the core features of a client‑server frontend for a dedicated online learning platform. Led frontend development to empower users to tackle frontend challenges, built reusable UI components, and integrated Stripe for scheduled payments for PRO members. Implemented a modern stack with React, TypeScript, Next.js, Tailwind CSS, and Playwright for end-to-end testing, plus React-Query and React-Table for data handling; Jest for testing. Collaborated with design and backend teams to deliver a cohesive, scalable frontend experience.
Senior React Developer at Parloa
September 2, 2024 - October 23, 2025
Contributed to a conversational AI platform by delivering robust frontend features and integrating new AI‑driven capabilities. Added Eleven Labs as a new text-to-speech provider and improved validation/ error handling in the UI by surfacing orchestrator errors. Integrated authentication-parameter driven data visualization into the Analytics Dashboard and expanded end-to-end test coverage to improve platform stability. Replaced external icons with in-house UI library components to ensure design consistency. Tech stack included React, TypeScript, Next.js, Playwright, Jest, Ant Design, and Figma.
Senior Frontend Developer at Frontend Solutions Center
October 2, 2018 - October 23, 2025
Led frontend initiatives for a major banking client (Germany’s second largest by assets) to stabilize configuration values for a risk solution. Recovered the project and delivered production-ready code within a year, increasing implemented features/pages from 2 to 13. Established open and efficient communication among team members and stakeholders, and ensured timely delivery.
Senior Frontend Developer at Acu Netix
November 2, 2017 - October 23, 2025
Contributed to security‑focused frontend solutions for a leading automated web application security provider. Built a UI that could work for both on‑premise and online deployments by decoupling the frontend from the scanner UI, and implementing a decoupled frontend architecture. Achieved 100% configurability and localization of the product for multi‑deployment scenarios.
Senior Frontend Developer at Acu Netix
October 2, 2015 - October 23, 2025
Earlier role focusing on cloud-based frontend for a vulnerability scanner; implemented UI for on-prem and cloud deployments; contributed to design patterns and performance improvements.
Senior Front End Developer at Acu Netix
May 2, 2013 - October 23, 2025
The client, a market leader in automated web application security, was scaling their business and decided to create a cloud solution of their vulnerability scanner. Implemented a decoupled frontend to work both on‑premise and online deployments; contributed to configurability and localization.
Open Source Maintainer at GitHub (Open Source)
June 1, 2011 - Present
Main maintainer and contributor to several open‑source projects, including Bootstrap/SCSS related work and other tooling. Maintained and documented modules ensuring compatibility and ease of use.

Education

Bachelor's degree in Cybernetics, Statistics and Business Information Systems at Babes-Bolyai University
January 1, 2013 - January 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services