Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Senior Front-end engineer with 10 years in SaaS and 7 years building React applications with complex business logic (dashboards, admin panels, file explorer, and heavy data grids). I own architecture and delivery end-to-end, focusing on maintainable state/data flow, performance, testing, and accessibility. I collaborate closely with product owners, back-end engineers, QA, and UI/UX to shape APIs and improve UX, and I regularly mentor teammates through knowledge sharing and standardized engineering practices. I’m proactive, learn new technologies quickly, and have a valid EU work permit.…Senior Front-end engineer with 10 years in SaaS and 7 years building React applications with complex business logic (dashboards, admin panels, file explorer, and heavy data grids). I own architecture and delivery end-to-end, focusing on maintainable state/data flow, performance, testing, and accessibility. I collaborate closely with product owners, back-end engineers, QA, and UI/UX to shape APIs and improve UX, and I regularly mentor teammates through knowledge sharing and standardized engineering practices. I’m proactive, learn new technologies quickly, and have a valid EU work permit.

V iacheslav Kholodov

Front-End Developer, Web Developer, Software Engineer, +2





Senior Front-end engineer with 10 years in SaaS and 7 years building React applications with complex business logic (dashboards, admin panels, file explorer, and heavy data grids). I own architecture and delivery end-to-end, focusing on maintainable state/data flow, performance, testing, and accessibility. I collaborate closely with product owners, back-end engineers, QA, and UI/UX to shape APIs and improve UX, and I regularly mentor teammates through knowledge sharing and standardized engineering practices. I’m proactive, learn new technologies quickly, and have a valid EU work permit.…Senior Front-end engineer with 10 years in SaaS and 7 years building React applications with complex business logic (dashboards, admin panels, file explorer, and heavy data grids). I own architecture and delivery end-to-end, focusing on maintainable state/data flow, performance, testing, and accessibility. I collaborate closely with product owners, back-end engineers, QA, and UI/UX to shape APIs and improve UX, and I regularly mentor teammates through knowledge sharing and standardized engineering practices. I’m proactive, learn new technologies quickly, and have a valid EU work permit.

Available to hire

Senior Front-end engineer with 10 years in SaaS and 7 years building React applications with complex business logic (dashboards, admin panels, file explorer, and heavy data grids). I own architecture and delivery end-to-end, focusing on maintainable state/data flow, performance, testing, and accessibility.

I collaborate closely with product owners, back-end engineers, QA, and UI/UX to shape APIs and improve UX, and I regularly mentor teammates through knowledge sharing and standardized engineering practices. I’m proactive, learn new technologies quickly, and have a valid EU work permit.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Senior Front-end Engineer at Legatic s

May 1, 2021 - April 1, 2026

Owned front-end delivery for multiple products and integrations, including the data room (file explorer), notification widget, template management panel, and NetDocs/iManage integrations. Led a migration from Redux to Apollo Client in the core application to improve state/data flow and speed up development. Introduced React Testing Library principles and standardized testing to improve reliability. Collaborated with a back-end tech lead to improve GraphQL endpoint design for a better developer experience. Suggested and implemented react-create-portal to reduce coupling, and worked on feature analysis, estimation, bug fixing, architecture improvements, and mentoring junior developers.

Middle Front-end Engineer at AirSlate

March 1, 2018 - April 1, 2021

Worked on architecture, feature analysis, estimation, and bug fixing for a PDF rewriter/editor. Delivered editing capabilities including text modification, paragraph splitting, rotation, document signing, search, bulk editing, and text wrap behavior. Used TypeScript, React, Redux, Inversify, and RxJS with OOP/SOLID principles.

Junior Front-end Engineer at Megogo

June 1, 2016 - March 1, 2018

Built new features and developed a mobile version for a streaming service. Integrated an HTML5 player, improved page-load performance, and set up the front-end build system. Worked with JavaScript, CSS, Bootstrap, jQuery, React, and Redux.