Vlad

FullStack Developer
ZELINSKY VLAD

LinkedIn:[открыть контакты](см. выше в блоке «контактная информация»)
CONTACT Email:[открыть контакты](см. выше в блоке «контактная информация»)
Region:Wroclaw, Poland

Highly experienced Senior Full Stack Developer with 4+ years of expertise in building
SUMMARY
scalable web applications using modern JavaScript technologies. Proven track record
of delivering enterprise-level solutions across diverse industries including legal
technology, travel platforms, and developer tools. Strong background in cloud
architecture with AWS, containerization with Docker/Kubernetes, and implementing
robust CI/CD pipelines. Passionate about creating efficient, user-centric applications
while maintaining high code quality standards and mentoring junior developers.

Programming Languages: JavaScript (ES6+), TypeScript, Python, SQL, HTML5, CSS3
SKILLS
Frontend Technologies: React.js, Next.js, Redux, Zustand, Material-UI, Tailwind CSS,
Styled Components, Webpack, Vite
Backend Technologies: Node.js, NestJS, Express.js, REST APIs, GraphQL, Microservices
Architecture
Databases: PostgreSQL, MongoDB, MySQL, Redis, Elasticsearch
Testing: Jest, Cypress, Playwright, React Testing Library, Unit Testing, Integration
Testing, E2E Testing
DevOps & CI/CD: Docker, Kubernetes, GitHub Actions, Jenkins, GitLab CI, Terraform
Cloud Services: AWS (EC2, S3, Lambda, RDS, CloudFormation, ECS, CloudWatch),
Azure, Firebase
Authentication & Security: JWT, OAuth2, Auth0, Passport.js, RBAC, API Security
Version Control: Git, GitHub, GitLab, Bitbucket

PROFESSIONAL
Senior Full Stack Developer
EXPERIENCE Developer Experience Platform
Built a comprehensive developer portal for API documentation and testing, serving
NETGURU 10,000+ external developers
(APRIL 2024 - Developed interactive API explorer using React.js, Next.js 13 with TypeScript and
JULY 2025) Tailwind CSS for responsive design
Implemented real-time code execution sandbox using NestJS backend with Docker
containers for secure code isolation
Created GraphQL API with PostgreSQL database for managing API documentation,
user authentication, and usage analytics
Integrated OAuth2 with GitHub/GitLab for seamless developer onboarding and
JWT-based session management
Deployed on AWS EKS cluster with auto-scaling capabilities, reducing infrastructure
costs by 35%
Implemented comprehensive testing suite using Jest, Cypress, and Playwright
achieving 95% code coverage
 Sustainability Analytics Dashboard
Developed environmental impact tracking platform for enterprise clients
monitoring carbon footprint and ESG metrics
Built responsive frontend using React.js with Redux for state management and
Material-UI for consistent design system
Created RESTful APIs using Node.js and Express.js with MongoDB for storing time-
series environmental data
Implemented data visualization components using D3.js and Chart.js for interactive
sustainability reports
Integrated with external APIs for real-time energy consumption data and
automated report generation
Deployed microservices architecture on AWS using ECS, S3 for file storage, and
CloudWatch for monitoring
Achieved 99.9% uptime through implementation of health checks, error handling,
and automated recovery processes

BRITENET
Full Stack Developer
(NOVEMBER Document Management System
2022 - APRIL Developedsecure document management platform for law firms handling sensitive
2024) legal documents and client communications
Built modern frontend using React.js with Next.js for server-side rendering and
improved SEO performance
Implemented advanced search functionality using Elasticsearch and created
RESTful APIs with NestJS and TypeScript
Designed PostgreSQL database schema with proper indexing for handling
100,000+ documents with fast retrieval times
Integrated JWT-based authentication with role-based access control (RBAC) for
lawyers, paralegals, and clients
Implemented end-to-end encryption for document storage using AWS S3 with
KMS for enhanced security
Created automated testing suite using Jest and Cypress, reducing manual testing
time by 60%
Deployed application using Docker containers on AWS EC2 with load balancing and
auto-scaling groups

Smart Travel Recommendation Engine
BuiltAI-powered travel recommendation platform connecting travelers with
personalized destination suggestions
Developed responsive web application using React.js with Zustand for state
management and Tailwind CSS
Created GraphQL API using Node.js and Express.js with MongoDB for storing user
preferences and travel data
Implemented machine learning recommendation algorithm integration through
Python microservices
Built real-time chat functionality using WebSocket connections for traveler
communication
Integrated with third-party APIs for flights, hotels, and activities booking with
secure payment processing
Deployed on AWS using ECS Fargate with RDS for relational data and S3 for image
storage
 Full Stack Developer
CLOUDMADE
(SEPTEMBER Resume Builder Platform
2021 - OCTOBER
Built interactive frontend using React.js, Material-UI, and Redux for complex form
2022)
state management
Implemented NestJS backend with PostgreSQL for storing user profiles, resume
templates, and job market data
Developed advanced content suggestion and resume optimization features based on
job descriptions
Created PDF generation service using Puppeteer, deployed as AWS Lambda for
scalable document processing
Implemented OAuth2 authentication with LinkedIn integration for importing
professional profiles
Built comprehensive analytics dashboard showing resume performance metrics and
improvement suggestions
Deployed using Docker containers on AWS ECS, with S3 for file storage and
CloudFront CDN for global content delivery
Established testing strategy using Jest (unit tests) and Playwright (end-to-end tests
across browsers)

Supply Chain Transparency Platform
Developed blockchain-integrated platform for tracking food products from farm to
consumer ensuring transparency and quality
Created responsive web application using Next.js with TypeScript and Tailwind CSS
for optimal performance
Built RESTful APIs using Express.js and Node.js with MySQL database for supply
chain data management
Implemented QR code generation and scanning functionality for product tracking
throughout the supply chain
Integrated with blockchain networks for immutable record keeping and smart
contract interactions
Created real-time notifications system using WebSockets for supply chain events
and quality alerts
Deployed microservices architecture on AWS using Kubernetes with Redis for
caching and session management
Implemented comprehensive logging and monitoring using AWS CloudWatch and
established automated backup strategies

KYIV POLYTECHNIC INSTITUTE | 2021-2025
EDUCATION
Bachelor Degree in Computer
Engineering

LANGUAGES Ukrainian: С1
English: B2
Polish: A2
Spanish: A1