Kseniia Stupina

Frontend Developer

Actively looking · Member since 15 Sep 2026

Message

Location: London, United Kingdom

Desired salary: Confidential

Work preference: Remote Only / Full Time

Experience level: Mid

About

Professional summary

I am a frontend developer with over four years of experience building product-focused web applications, landing pages, online stores, and user dashboards. I specialize in creating maintainable frontend architecture, clear codebases, and consistent development standards.

I work primarily with React, Next.js, TypeScript, and the Vue ecosystem. I enjoy transforming complex designs and ambiguous requirements into responsive, accessible, and performant user experiences.

In my current role, I lead small cross-functional development teams while remaining a hands-on contributor. I make architectural decisions, maintain technical documentation, mentor teammates, and collaborate directly with customers and stakeholders throughout delivery.

I have experience improving application quality through strong typing, environment-variable validation, code-quality tooling, performance optimization, and modernization of legacy applications. I also build reusable UI component libraries that accelerate product delivery.

I am comfortable delivering multilingual interfaces, dynamic content integrations, sophisticated animations, and third-party services. My approach combines attention to implementation detail with a holistic focus on product goals, team workflows, and long-term scalability.

Notice period: 2 weeks

Tech stack & tools

Working toolkit

Experience

Career history

Frontend Developer Mish.design

Sep 2023 – Present

I lead cross-functional teams of one to three developers and a QA engineer while remaining a hands-on frontend contributor. I deliver core features, drive architectural decisions, maintain technical documentation, and mentor team members.

I work directly with stakeholders and customers through demos, consultations, development, and release. I have delivered more than four projects on schedule, including responsive landing pages, online stores, dashboards, multilingual interfaces, and integrations with mailing-list and AI services.

I implemented environment-variable validation that reduced deployment troubleshooting time by half, built an internal React UI component library based on Figma design tokens, and accelerated downstream development by up to 60%. I also migrated projects to current React and Next.js versions, modernized legacy business logic, and removed duplicate dependencies.

My work includes implementing high-performance GSAP and PNG-sequence animations, improving multilingual data typing, and ensuring reliable behavior across device types.

Frontend Developer PIC

Jul 2022 – Sep 2023

I owned frontend development for a B2B platform for selecting and searching bearings. I worked in a cross-functional team with a designer and backend developer to deliver new functionality and maintain a stable, scalable client-side application.

I designed the frontend architecture, decomposed work into tasks, established development workflows, and coordinated communication through Jira. I also optimized the product using Lighthouse metrics, improving SEO, performance, and accessibility quality scores.