Artem

Artem Achkasov
Middle Frontend Engineer - React / Next.js / TypeScript
Khmelnytskyi, Ukraine • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • github.com/Eskalifer1
SUMMARY
Frontend engineer with 3.5+ years building production React, Next.js, and TypeScript apps, including customer-facing
marketplace and e-commerce features. Comfortable owning UI from MVP scope to release in a few months, building
reusable component systems and design-system-driven flows, with steady focus on performance (Core Web Vitals),
accessibility, and code quality. Contributor Plus (C+) on Expensify's open-source app, reviewing other developers'
contributions across a large React Native codebase.
SKILLS
Languages: TypeScript, JavaScript, HTML, CSS, SCSS
Frameworks: React, Next.js (App Router, SSR / SSG / ISR, Server Components), React Native
State & Data: TanStack Query, React Context API, MobX, Zustand, REST API, WebSocket, GraphQL
UI: Tailwind, Material UI, Ant Design, Shadcn, styled-components, Responsive Design
Forms & Validation: react-hook-form, Formik, Zod, yup
Tooling & Testing: Vite, Webpack, Jest, Vitest, Git, ESLint, Prettier, i18n, Core Web Vitals, Jira, AI tools (Claude Code)
WORK EXPERIENCE
SaaS Platform (under NDA) - Middle Frontend Engineer Mar 2026 – Aug 2026 · Remote
● Built multiple 40+ step onboarding flows as configurable routes, reusing a shared component library to keep
steps consistent without duplicating.
● Migrated the codebase from JavaScript to TypeScript and set up ESLint, Prettier and other tools, strengthening
type safety across the team.
GlobalPartnerSoft - Frontend Engineer (Junior → Middle) Feb 2023 – Feb 2026 · Remote
Grew from Junior to Middle across several client and product projects within the company.
Wippli (via GlobalPartnerSoft) - Frontend Engineer (Middle) Feb 2025 – Feb 2026 · Remote
● Worked directly with the client to translate requirements into technical solutions for the core UI of a
collaboration platform used by 20+ distributed teams.
● Implemented role-based access control across 4 user roles and user-facing feature flags for ~10 features, with
permission-driven dynamic rendering enabling safe, gradual rollout.
● Created a dynamic form builder that lets admins assemble custom forms from typed fields, used in a separate
marketplace flow - replacing dev work with business self-service.
Study UA (via GlobalPartnerSoft) - Middle Frontend Engineer Jun 2024 – Feb 2025 · Remote
● Built ~85% of the client side and contributed to the admin side in a shared codebase, scoping business
requirements and shipping a production-ready MVP in 2 months.
● Built a multi-theme system with 3 preset themes and full user-level customization, using Material UI theming
to keep components visually consistent.
● Integrated a custom chat library for real-time communication and created the email and certificate templating
that delivers diplomas to 6,500+ students completing courses on the platform.
Wippli (via GlobalPartnerSoft) - Frontend Engineer (Junior) Sep 2023 – Jun 2024 · Remote
● Built accessible (WCAG), cross-browser features across the client, marketplace, and admin areas in React and
TypeScript, and split large components to cut re-renders and improve runtime performance by ~13%.
● Implemented live updates over WebSocket so task and project changes appeared instantly across all users.
PROBHUB - Estet (via GlobalPartnerSoft) - Junior Frontend Engineer Feb 2023 – Aug 2023 · Remote
● Delivered new features across 4 product sections of a live beauty-industry platform, extending existing
functionality while keeping the codebase consistent as the product grew.
● Cut average page load time by ~24% using Next.js SSG, ISR, and on-demand ISR, plus SEO-focused AMP pages,
which also improved search ranking.
● Consolidated duplicated code across four product sections into a shared module, which removed
cross-section inconsistencies and cut feature delivery time by ~20%.
OPEN SOURCE
Expensify - Contributor Plus (C+) · (part-time) Jun 2025 – Present
● Promoted to Contributor Plus (C+): review external contributions and mentor contributors, maintaining code
quality across the community.
● Contributed 100+ merged PRs, fixing bugs across a large React Native codebase and navigating complex,
unfamiliar code.
● Developed strong code-review and architectural-analysis skills - identifying regressions, weighing solution
trade-offs, and giving actionable feedback.
EDUCATION
Khmelnytskyi National University - Bachelor's in Computer Engineering - Sep 2023 - Jun 2026