Сергій

SERHII FOMIN
SENIOR ANGULAR DEVELOPER | FRONT-END ENGINEER | TEAM LEAD CONTACT

github.com/FominSerhii [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)

serhii-portfolio.fominsergeyo15.workers.dev Bratislava, Slovakia

TECHNICAL SKILLS PROFILE
Senior Front-End Engineer and Angular Developer with 8+ years of experience
building and maintaining web and mobile applications with Angular, TypeScript,
Front-end HTML and CSS.
Angular, TypeScript, JavaScript, HTML,
CSS, RxJS, Ionic, React Strong background in front-end architecture, reusable component libraries and
design systems, REST API integration, performance optimisation and maintainable
Architecture & Design Systems application structure.

Front-end Architecture, Modular Experienced in code reviews, technical leadership, framework and library
Architecture, Component Architecture, modernisation, and cross-functional collaboration with back-end developers and
Design Systems, Component Libraries designers.

Also experienced with AI-assisted development using GitHub Copilot and Claude
AI & AI-Assisted Dev Code.
AI-Assisted Development,
Cloudflare Workers AI, GitHub Copilot,
Claude Code, AI-powered Interfaces WORK EXPERIENCE
UI Engineering FEB 2022 – PRESENT
Annut · Netherlands
Storybook, Angular Material, Accessibility,
Semantic HTML, Responsive Design,
Senior Front-End Engineer | Team Lead
Tailwind CSS, Bootstrap, MUI Lead a cross-functional front-end team of 5 developers across multiple client-
facing products, driving architecture decisions, sprint planning, and on-time
Data & APIs delivery in an Agile environment.
REST APIs, RxJS, Architected and built a scalable reusable component library using Angular,
Reactive State Management, GraphQL, TypeScript, HTML, CSS, and Storybook - standardising UI patterns and
Firebase, Supabase, PostgreSQL reducing feature development time by 30%.
Participated in Angular framework upgrades and modernisation of shared
Authentication & Security front-end libraries, maintaining compatibility and reducing technical debt.
OAuth 2.0, JWT, Role-Based Access Control Developed a full application builder powered by the internal component
library, enabling rapid product configuration and reducing release cycle time by
(RBAC)
40%.
Established code review standards and engineering best practices across the
Performance
team, mentoring junior and mid-level developers and improving overall code
Bundle Optimization, Lazy Loading,
quality.
Rendering Optimization, Web Performance
Optimised application performance through bundle size reduction, lazy loading,
Engineering and refined REST API data-fetching strategies, improving load times by 25%.
Diagnosed and resolved front-end issues across client-facing applications,
Git, GitHub, Pull Requests, Code investigating UI, state-management, API and performance problems.
Reviews, GitHub Actions, GitLab,
Bitbucket, CircleCI, CI/CD Multimedia Production · Germany APR 2021 – FEB 2022
Front-End Developer
Cloud & Backend Services
Cloudflare Workers, Cloudflare Workers AI, Developed a cross-platform taxi management application (iOS & Android) using
Supabase, Firebase Ionic & Angular, with a real-time admin dashboard for monitoring drivers,
users, and rides.
Leadership Engineered a three-way communication model between driver, passenger, and
Technical Leadership, Architecture Decisions, admin portals using Firebase REST APIs, ensuring data consistency and
Code Reviews, Mentoring, Sprint Planning eliminating race conditions.
Implemented role-based access control (RBAC) across all user-facing and back-
end portals, reducing security risk and enforcing data boundaries between
client roles.
Optimised Firebase query structures to streamline real-time data retrieval and
improve overall app loading performance.

SERHII FOMIN
SENIOR ANGULAR DEVELOPER | FRONT-END ENGINEER | TEAM LEAD (CONTINUED)

LANGUAGES WORK EXPERIENCE (CONTINUED)
Ukrainian (Native)
Russian (Native)
LTG Inc. · Canada OCT 2020 –APR 2021
English (Full Professional Proficiency)
Front-End Developer
Developed an internal company management system using Angular, enabling
EDUCATION teams to track workflows, manage resources, and centralise operational data.
Petro Mohyla Black Sea National University Built dynamic data tables and filtering interfaces to give managers real-time
Master's Degree (with Honours) visibility into team activity and project status.
Bachelor's Degree Implemented modular Angular architecture to ensure the system remained
Computer Engineering maintainable and extensible as business requirements evolved.

QuoMoney · United Kingdom AUG 2019 – OCT 2020
Front-End Developer
Developed a cross-platform banking mobile application (iOS & Android) using
Ionic framework, Angular, Typescript, Capacitor, focused on delivering a secure
and intuitive financial experience.
Drove UI/UX improvements across key user flows - onboarding, transactions,
and account overview - resulting in a more streamlined and accessible
interface.
Improved data visualisation for financial analytics, implementing interactive
charts and summaries to give users clearer insight into their spending and
account activity.
Enhanced application performance by refactoring component logic and
optimising REST API data binding, reducing unnecessary re-renders and
improving response times by 20%.

Space for Dev · Mykolayiv, Ukraine AUG 2019 – FEB 2022
CEO & Lead Instructor
Founded and scaled an IT education company, training 20+ junior developers
in Angular, TypeScript, JavaScript, Ionic framework and HTML/CSS and
preparing them for commercial projects.
Secured and managed relationships with 30+ clients, matching talent with
projects and maintaining a high standard of delivery across all environments
and engagements.

eDriven · Cincinnati, USA AUG 2018 – AUG 2019
Angular Developer
Designed and developed cross-platform mobile applications (iOS & Android)
using Ionic, Angular, TypeScript, and HTML/CSS, delivering user-facing
products for US-based clients.
Integrated and optimised GraphQL and Firebase REST APIs, restructuring data
models and eliminate redundant API calls and reduce data load times by 20%.
Refactored legacy data-fetching logic resulting in faster screen transitions and
a cleaner, more maintainable codebase that improved the development
environment for future contributors.