Available to hire
Hi, I’m Catalin Besleaga, a Javascript Frontend Developer with 8 years of experience building SPAs using React, Vue, and Angular.
I enjoy turning complex requirements into clean, performant interfaces and I’m exploring how AI can augment my development workflow to deliver faster, smarter solutions.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
Romanian, Moldavian, Moldovan
Fluent
English
Fluent
Russian
Fluent
Work Experience
Senior Frontend Engineer at DesignFiles (designfiles.co)
January 1, 2023 - June 1, 2025Led frontend development for major features, focusing on the drag-and-drop furniture canvas. Worked on a legacy project, delivering iterative improvements, developed a jQuery plugin, performed code reviews, and transitioned some features to React. Integrated an AI Agent (AugmentCode) and several OpenAI models to augment development.
Senior Frontend Engineer (Contract) at Archilyse (https://www.archilyse.com/)
January 1, 2022 - December 1, 2022Worked on a web-tool for digitization of architectural plans (a customized fork of react-planner). Improved performance by restructuring state with react-redux connect and migrating from immutable.js to vanilla.js, achieving around 10x speedup. Developed features such as rectangle select tool and multiple annotation selection; contributed to admin and digital management systems.
Senior Reactjs Frontend Consultant at Compire (https://compire.co/)
September 1, 2020 - December 1, 2021Developed Mobikit dashboards and connected them to the database; fixed UI/UX bugs; collaborated with a data engineer on SQL queries. Reduced build time from ~6 minutes to ~1 minute by adopting ES6, esbuild, and leveraging react-scripts with overrides. Reworked components to use Redux state instead of parent component state.
Senior Reactjs Frontend Developer at Urchin Systems (https://www.urchinsys.com/)
February 1, 2020 - September 1, 2020Contributed to OCR-GATEWAY frontend architecture; laid out a monorepo using Lerna and Yarn workspaces; translated Figma wireframes into pixel-perfect layouts. Built a design system leveraging Storybook and atomic design principles.
Frontend Developer (Freelancer) – Vue/React at Noction (https://www.noction.com/)
September 1, 2019 - February 1, 2020Builiding and testing Vue/React components for two B2B products; extended and maintained internal Vue and React UI libraries; wrote tests to maintain minimum 80% code coverage.
Vuejs/Reactjs Frontend Developer at Noction (https://www.noction.com/)
June 1, 2019 - September 1, 2019Builiding and testing Vue/React Components for B2B products; extending and maintaining internal Vue and React UI library; writing tests to maintain code coverage.
Javascript Developer (FullStack) at Fun Easy Learn (http://funeasylearn.com/)
January 1, 2018 - May 1, 2019Developed desktop software with Electron to automatically extract data from ~200 sources (web scraping) and export to a uniform format. Built the frontend of a data aggregation system (charts, grids, tables on React) and contributed to a Flask-based backend. Also developed an internal platform to manage words/translations.
ReactJs Frontend Developer – 3 months Contract (Remote) at Maxiom Apps (https://www.maxiomapps.com/)
March 1, 2018 - June 1, 2018Maintained and developed new features for BMW of North America using React, Express.js, Node, REST API, jQuery, vanilla JS, MongoDB, AWS.
ReactJs Frontend Developer at Epydoc (http://www.epydoc.com)
June 1, 2017 - January 1, 2018Built and tested React components for the Forcive data ingestion platform; extended an open-source project (Superset). Responsibilities included: writing React components and unit tests; converting designs into templates; some PHP (Laravel).
Frontend Developer at CreativSoft (https://www.creativsoft.md/)
August 1, 2016 - May 1, 2017Sliced PSDs into HTML/CSS/JS; created a development/build environment with Webpack and Gulp; built responsive UIs across ~25+ projects.
Javascript Developer (Angular) at Starsoft East
October 1, 2015 - August 1, 2016Developed UI components in Angular; built REST APIs with Node.js/Express; configured Gulp/Webpack pipelines; ensured responsive interfaces and client-side integration with APIs.
Senior Frontend Engineer at DesignFiles
January 1, 2023 - June 1, 2025Worked on most frontend features, especially the drag-and-drop furniture canvas. The project was legacy, progressing with gradual iterations. Developed a jQuery plugin. Performed code reviews. Transitioned some features to React.js. Introduced an AI Agent into development—AugmentCode and various OpenAI models.
Senior Frontend Engineer (Contract) at Archilyse
January 1, 2022 - December 1, 2022Worked on the company’s web-tool for digitizing architectural plans (a customized fork of react-planner). Improved performance by leveraging react-redux connect; refactored to vanilla.js to achieve ~10x speed improvements. Developed new features and tests (unit and e2e).
Senior Reactjs Frontend Consultant at Compire
September 1, 2020 - December 1, 2021Contributed to Mobikit data telemetry web toolkit: built dashboards, fixed UI/UX issues, and collaborated with the data engineer on SQL queries. Reduced build time by moving to ES6 and esbuild; migrated from raw webpack to react-scripts with overrides. Refactored components to use Redux state.
Senior Reactjs Frontend Developer at Urchin Systems
February 1, 2020 - September 1, 2020 contributed to OCR-GATEWAY frontend. Planned frontend architecture with a monorepo (Lerna/Yarn Workspaces). Translated Figma wireframes into pixel-perfect layouts. Built a design system with Storybook and atomic design principles.
Reactjs Frontend Developer (Freelancer) at Self-employed
September 1, 2019 - February 1, 2020Freelance frontend work focusing on React and Vue components, UI libraries, and client projects.
Vuejs/Reactjs Frontend Developer at Noction
June 1, 2019 - September 1, 2019Built components for B2B products, maintained internal UI library, and wrote tests to sustain code quality.
Javascript Developer (FullStack) (Angular, React, Electron) at Fun Easy Learn
January 1, 2018 - May 1, 2019Developed desktop software with Electron for data extraction from numerous websites, and built a data aggregation UI in React. Contributed to a Flask-based backend and MySQL database. Managed translators’ workflow and internal platform for translations.
ReactJs Frontend Developer – 3 months Contract (Remote) at Maxiom Apps
March 1, 2018 - June 1, 2018Maintained and developed features for BMW USA using React, Express.js, Node, REST APIs, jQuery, vanilla JS, MongoDB, AWS.
ReactJs Frontend Developer at Epydoc
June 1, 2017 - January 1, 2018Built and tested React components for Forcive (data ingestion B2B product) and contributed to an open-source project (superset). Converted designs into templates and contributed to PHP/Laravel backends.
Frontend Developer at CreativSoft
August 1, 2016 - May 1, 2017Sliced PSDs into HTML/CSS/JS and implemented responsive UI across ~25+ projects; set up development/build environment with Webpack and Gulp.
Reactjs Frontend Developer at Freelancer
September 1, 2019 - February 1, 2020React/Vue frontend work for two B2B products; extended and maintained internal Vue/React UI library; wrote tests to maintain ~80% code coverage.
Frontend Developer at Epydoc
June 1, 2017 - January 1, 2018Built and tested React components for Forcive (data ingestion B2B product). Extended an open-source project (Superset); translated designs to templates; contributed PHP (Laravel, Blade) where needed.
Javascript Developer (FullStack) at Fun Easy Learn
January 1, 2018 - May 1, 2019Developed desktop software with Electron for web data extraction from ~200 sources; built a data aggregation UI in React; contributed to backend in Flask; developed an internal web platform for controlling word translations.
Education
Bachelors Degree, Computer Science at Academia de Studii Economice (Academy of Economic studies of Moldova)
January 1, 2012 - January 1, 2016Bachelor's Degree, Computer Science at Academia de Studii Economice (Academy of Economic studies of Moldova)
January 1, 2012 - January 1, 2016Bachelor's Degree in Computer Science at Academia de Studii Economice (Academy of Economic studies of Moldova)
January 1, 2012 - January 1, 2016Bachelor's Degree at Academia de Studii Economice (Academy of Economic Studies of Moldova)
January 1, 2012 - January 1, 2016Qualifications
Industry Experience
Software & Internet, Media & Entertainment, Professional Services, Computers & Electronics, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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