Andrei Constantinescu
React Front End Developer at Citi
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolAndrei Constantinescu is a React-focused front-end engineer with 11 years of experience building high-performance, user-centric web applications across finance, media, energy, and education. He excels at translating complex workflows into fast, maintainable UIs using React, Typescript, Next.js and modern tooling, and has a strong track record of bundle-size and performance improvements (often 20–35%). His work spans real-time dashboards, graph and WebGL visualizations, microfrontend integrations, and serverless-backed Node services, demonstrating comfort across the full client stack. Andrei has contributed to monorepos and component libraries to improve team velocity and consistency, and he brings rigorous testing practices (Cypress, Jest) and automation to production workflows. Now based in London, he’s currently a React front-end developer at Citi after recent roles delivering graph-based interfaces and chat app revamps for AI startups and asset managers. Outside typical front-end deliverables, he pairs data visualization and low-level canvas work to make complex datasets intuitive and actionable.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Science (BSc) Computer Science, Bachelor of Science (BSc) Computer Science at University of Bucharest
English, German
Github Skills (14)
graphql-modules8
mobx-state-tree6
graphql-cms6
react5
typescript4
cms4
graphql3
typeorm3
zsh2
antd2
tmux2
linux2
macos2
vim2
Programming languages (1)
Github contributions (4)
sylar/chatApp
Jul 2014 - Sep 2014
Contributions:3 commits in 2 months
sylar/dotfiles
Oct 2016 - Sep 2019
Contributions:5 commits in 2 years 10 months
vimosxtmuxlinuxpersonal-dotfiles
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