Андрей

🌐 More info on my portfolio website: saprland-12307.web.app

Sapryhin Andrii
📧 [open contact info](look above in the "contact info" section)
📱 [open contact info](look above in the "contact info" section)
🐙 GitHub · 💼 LinkedIn · ✈️ Telegram
📍 Odesa, Ukraine · Open to Remote

ABOUT ME
Node.js Backend Developer with 4+ years of hands-on experience building scalable
APIs and server-side applications. Specialized in NestJS and Express.js with
TypeScript, REST and GraphQL API design, PostgreSQL/MongoDB, and microservices
patterns. Full-Stack background with frontend experience (React, TypeScript) —
capable of delivering complete features end-to-end. Open to remote collaboration;
self-driven and results-focused.
SKILLS
Backend Node.js, TypeScript, JavaScript (ES6+), NestJS, Express.js, Fastify,
WebSockets
Databases PostgreSQL, MongoDB, Redis, MySQL, Mongoose, Prisma,
TypeORM
API Design REST API, GraphQL, Apollo Server, OpenAPI/Swagger, gRPC,
Event-Driven (basics)
Auth JWT, OAuth2, Passport.js, bcrypt, API Keys, RBAC
Testing Jest, Supertest, unit & integration testing
Frontend React, TypeScript, HTML5, CSS3 (Full-Stack background)
DevOps Docker, Docker Compose, GitHub Actions, CI/CD, Linux, Nginx,
PM2
AI & GitHub Copilot, ChatGPT, Gemini, Prompt Engineering, Workflow
Automation Automation
Languages English — B1-B2 (Intermediate / Upper-Intermediate)
EXPERIENCE
Node.js Backend Developer May 2022 — Present
Independent / Contract Projects

• Architected and developed scalable REST and GraphQL APIs with NestJS;
implemented auto-generated OpenAPI/Swagger documentation and versioning
strategies.
• Designed PostgreSQL schemas with TypeORM and Prisma; built MongoDB data
models with Mongoose; used Redis for caching and session management.
• Implemented JWT and OAuth2 authentication with Passport.js, including token
refresh logic and role-based access control (RBAC).
• Wrote Jest unit and Supertest integration tests to ensure reliability of critical API
endpoints.
• Containerized services with Docker and Docker Compose; configured GitHub
Actions CI/CD pipelines for automated testing and deployment.
• Refactored monolithic services into modular NestJS modules, improving code
maintainability and enabling independent team contributions.
• Leveraged AI tools (GitHub Copilot, ChatGPT) for rapid prototyping, code review
automation, and documentation generation.
PROJECTS
REST API Service (NestJS + PostgreSQL)
Scalable REST API development using NestJS, PostgreSQL, TypeORM. JWT authorization
implementation and Swagger documentation.
GraphQL API (Node.js + Apollo)
GraphQL API implementation for microservices architecture with Apollo Server, MongoDB and
Redis for caching.
EDUCATION
IT Step Academy, Odessa — Bachelor's Degree, Information Technology 2019 —
(with distinction) 2023

🌐 Portfolio: saprland-12307.web.app