Владислав

Postnikov Vladyslav
FrontEnd Developer
Frontend Developer with 4+ years of commercial experience building
modern web applications using React, Next.js. Experienced in developing
scalable and maintainable user interfaces, integrating REST APIs,
implementing authentication and authorization flows, and optimizing
application performance. Strong understanding of frontend architecture,
state management, and responsive design principles.

Contact Skills
Programming Languages: JavaScript, Typescript
Phone / Viber
Frameworks: React, Next.js
[open contact info](look above in the "contact info" section) Web-Technologies: HTML, CSS(Flex/Grid), Scss/Saas, Styled Components,
React Hook Form/Zod, Formik/Yup
Email
CSS Frameworks: React Magma, Bootstrap, Tailwind CSS, MaterialUI, HeroUI,
[open contact info](look above in the "contact info" section) ShadcnUI, ChakraUI
State Managers: Redux, RTK Query, Effector, React Query
Telegram Testing: Jest, React Library Testing
@braunvlad Tools: Postman, Swagger, Git, GitHub, GitLab, Docker, Prettier, ESLint, Husky
Architecture & Practices: Feature-Sliced Design (FSD), Responsive Design
LinkedIn AI Development Tools: Cursor, Claude Code (agentic workflows, code generation,
Vlad Postnikov refactoring, code review)
Basic knowledge of:
Server Side: KoaJS, ExpressJS, Mongoose, Fetch/Axios, RESTfull API, GraphQL
Databases: PostgreSQL, MySQL, MongoDB, Redis

Courses Experience
A-level - Course of FrontEnd - 2021 ComeBack Agency/Soft Does - (Jul 2025 - Jun 2026)
Learning: Developed and maintained scalable web applications using React, Next.js;
React
Built frontend architecture following Feature-Sliced Design (FSD) principles;
Redux
Implemented efficient server-state management using RTK Query, optimizing
GraphQL
data caching and reducing redundant API requests;
Bootstrap
Implemented authentication and authorization flows;
Built a CodePen project during a
Integrated Cursor and Claude Code (agentic workflows) into the development
web development course using
key frontend technologies. process, accelerating feature delivery and reducing technical debt through AI-
assisted refactoring;

Svepser - (Apr 2025 - Aug 2025)
Built and deployed a responsive corporate web application from scratch with
full internationalization (i18n) and localized content for global markets,
Languages handling hosting and infrastructure setup on a European domain.

English - B1+ Freelance - (June 2024 - Apr 2025)
Ukranian - Native
NixSolutions - (Feb 2022 - June 2024)
Building a front-end application with React as the core framework;
Covered all functionality with unit tests using Jest to ensure code reliability
and stability throughout the project;
Participated in demos of new features and the evaluation of tickets;
 Commercial Projects:

1) EstateAI — An AI-powered SaaS and marketplace platform for hybrid estate sales in
the US, automating inventory cataloging and buyer matching.
Stack: React, Next.js, RTK Query, TailwindCSS, ShadcnUI, nuqs, Stripe, React-hook-
form, Zod, SVGR, FSD.
Tools: Claude Code, Swagger, Postman, Figma, Kanban
Architected and built an AI-driven cataloging workflow from scratch, enabling
sellers to automatically generate detailed, priced product listings from a single
room photo.
Implemented a multi-role ecosystem and Role-Based Access Control (RBAC)
tailored for Sellers (revenue metrics and seller-dashboard), Buyers (marketplace,
cart, wishlist, checkout, subscriptions, orders), and Admin.
Engineered complex client-side features, including a "Price Sniper" notification
engine (with custom tracking rules) and an interactive analytical dashboard
tracking automated sales performance (Ghost Bidder metrics).
Developed advanced search and data visualization features, incorporating localized
category filtering, dynamic product grids (Pinterest-style), and a Smart Filter field
capable of processing natural language queries.
Delivered a responsive, high-performance web application following Next.js best
practices

2) Telaria VoIP Customer Portal — A comprehensive customer portal for managing
telecom services, subscription billing, and VoIP configurations.
Stack: React, Next.js, Stripe API, Redux Toolkit, Zustand, Axios, TailwindCSS,
ShadcnUI, ChartJS, nuqs, FSD
Architected and developed user interfaces for managing complex VoIP services,
including SIP trunk configurations and DID number management (purchase,
porting).
Integrated Stripe Payment Gateway from the frontend side, implementing secure
subscription flows, invoicing, and dynamic payment processing.
Built interactive analytical dashboards for CDR (Call Detail Record) statistics,
enabling users to view detailed call logs, track usage metrics, and export data.
Implemented secure authentication flows, including user registration, login, and 2-
Factor Authentication (2FA) UI integration to enhance account security.
 Connected and synchronized frontend application with Telaria API, ensuring
real-time data updates for subscriber profiles and telecom metrics.
Built interactive analytical dashboards with dynamic charts (using Chart.js),
transforming complex CDR (Call Detail Record) statistics into intuitive visual
reports for tracking call usage and metrics.

3) FinTech Platform for Brokers — A specialized web application designed for
brokers to manage financial deals, upload trade data, and streamline user access
levels.
Stack: React, Next.js, OAuth 2.0, React-Hook-Form, Zod, Tailwind CSS, ShadcnUI.
Tools: Postman, Swagger, Cursor, Figma
Designed and engineered a custom UI-kit library from scratch, ensuring UI
consistency, scalability, and reusability across the entire platform.
Implemented secure OAuth 2.0 authentication integration (Google & LinkedIn)
along with a strict Role-Based Access Control (RBAC) system tailored for
Users, Brokers, and Admin.
Developed high-performance data processing features, including
asynchronous CSV file uploads and parsing workflows for bulk trade ingestion.
Built and optimized complex multi-step forms with dynamic validation to
capture and process complicated financial deal parameters efficiently.

4) Enterprise Content Management & Publishing Platform — A large-scale system
for managing digital content workflows, editorial pipelines, and vendor
operations.
Stack: React, TypeScript, Effector, Draft.js, Chart.js, React Magma, React-Hook-
Form, MaterialTable, Jest.
Additional: Swagger, Jira, Bitbucket, Jenkins, .Net, Postman, Scrum
Collaborated within a cross-functional, international team (including US-based
developers) following Agile methodologies to deliver high-quality platform
features.
Implemented a complex, multi-role Access Control system (tailored for Admin,
Editorial, QA, CopyEditors, Vendors, and Guests), ensuring strict frontend
permission and route filtering.
Engineered advanced data management workflows, enabling seamless
dynamic data visualization via interactive charts alongside asynchronous
CSV/Excel import and export features.
Developed and optimized comprehensive workflow forms with conditional
logic to handle complex publishing and editorial state transitions.