Full- stack developer with 7+ years of commercial experience building scalable web applications across FinTech, eCommerce, and EdTech. Proficient in JavaScript ,…

Jack

Full- stack developer with 7+ years of commercial experience building scalable web applications across FinTech, eCommerce, and EdTech. Proficient in JavaScript ,…

Available to hire

Full- stack developer with 7+ years of commercial experience
building scalable web applications across FinTech,
eCommerce, and EdTech. Proficient in JavaScript ,

Skills

Experience Level

Node.js
Expert
TypeScript
Expert
Docker
Expert
Express
Expert
GraphQL
Expert
PostgreSQL
Expert
MongoDB
Expert
Ethereum
Expert
Kubernetes
Expert
Redis
Expert
Stripe
Expert
Chrome Extension
Intermediate
See more

Language

English
Advanced

Work Experience

Senior Fullstack Developer at UAtalents
July 1, 2023 - February 1, 2024
Built a job-matching platform to automate candidate application flows and employer interactions; implemented multilingual support and social login features; developed REST and GraphQL APIs using Node.js, Express, and PostgreSQL; integrated with external HR platforms such as LinkedIn, Greenhouse, and Lever; improved system performance through caching, lazy loading, and bundle optimization; set up logging and monitoring using Sentry, Grafana, and Prometheus.
Mid-level Fullstack Developer
October 1, 2022 - July 1, 2023
Developed new modules for a user behavior analytics SaaS platform; created dashboards using React, Recharts, and Tailwind CSS; built backend services with Node.js and MongoDB, including real-time updates via WebSockets; wrote unit, integration, and end-to-end tests (Jest, Supertest, Cypress); implemented OAuth2, JWT, and RBAC for authentication and access control; participated in Agile ceremonies and regular code reviews within a cross-functional team.
Mid-level Fullstack Developer
July 1, 2022 - October 1, 2022
Maintained and refactored legacy codebase, improving test coverage and reliability; built UI components using React and Storybook; developed REST APIs with Express and worked with PostgreSQL and Redis; integrated Stripe and PayPal for secure payment processing; followed SCRUM and Kanban methodologies in a remote team setup; enhanced application security using Helmet, CORS policies, and rate limiting.
Fullstack Developer
February 1, 2018 - January 1, 2022
Delivered 3+ fullstack projects as a lead developer using React and Node.js; Worked with Web3.js to integrate Ethereum smart contracts and MetaMask transactions; Built SPA applications using React and Next.js with SSR/ CSR toggling; Developed REST APIs and microservices using Node.js, Express, and NestJS; Used Docker and Kubernetes for containerization and orchestration of services; Communicated directly with clients, handled presales, and prepared technical documentation and PoCs.

Education

Master's degree, Software engineering at Taras Shevchenko National University of Kyiv
January 1, 2014 - January 1, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Education, Financial Services, Retail, Media & Entertainment
    paper Hey Holy

    Partnership with Hey Holy extends beyond code and design. It’s a synergy of purpose, combining their revolutionary approach to dog food with my expertise in development. The project involved comprehensive enhancements and customizations for an enriched user experience.

    Full Website Development from Scratch. Crafted the entire website from scratch, ensuring a tailored and dynamic online experience.

    Custom Drawer Cart. Developed a bespoke drawer cart from scratch. Integrated features like a dynamic gift bar, showcasing how much more a user needs to spend for gifts or free shipping. Implemented upselling options and the ability to opt for a more cost effective product subscription.

    Custom Logic on PDP. Implemented custom logic on the Product Display Page. Enabled dynamic changes to product information based on selected options within a single product page.

    Custom Filtering on PLP. Introduced custom filtering on the Product Listing Page. Achieved dynamic changes to banners and the product list without page reloading when applying filters.

    Private Referral Program Integration. Integrated a private referral program with a custom design that aligns with the overall website aesthetics. Implemented field validation and data recording in a spreadsheet. Executed referral email sending through the SendGrid service.

    Multilingual Website Implementation. Successfully translated the entire website to cater to diverse audiences.

    Pet Feed Calculator. Developed a calculator for customers to determine and select the ideal feed for their pets. Gathered data such as weight, breed, and age for accurate recommendations.

    These initiatives collectively contribute to a robust and user friendly website, addressing various aspects of user interaction and functionality.