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Stanislav K.
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Stanislav K.

Node js Developer | Full Stack Node.js | AI-Powered Node.js Dev

πŸš€ The Top 3% of π€πˆ-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 Node.js & Backend Architecture Talent πŸ€– Modern AI Stack: Cursor, Claude Code, GitHub Copilot, GPT-4o, Claude 3.5 Sonnet ⚑ 14 Years of Professional Engineering Experience ⚑ 30–40% Faster Release Cycles Through AI-Assisted Engineering Welcome! πŸ‘‹ I am a Senior Node.js Developer and Backend Architect specializing in building clean, resilient, and high-performance backend systems. Over the past 14 years, I have helped companies architect new platforms, rescue legacy codebases, and scale infrastructure. Whether you need to ship a complex greenfield project from scratch or optimize an existing enterprise repository, I deliver highly secure, production-ready APIs designed to handle heavy loads with zero surprises. πŸ”₯ WHAT YOU GET High-Performance Architecture: Custom-built backend ecosystems engineered for scalability, low latency, and 99.99% uptime. Rapid, AI-Accelerated Delivery: High-quality features and refactors delivered 30–40% faster using premium AI-assisted development tools. Enterprise-Grade Quality: Bulletproof codebases equipped with end-to-end testing, bulletproof security patterns, and clear documentation. A Pragmatic Technical Partner: A senior engineer who focuses on measurable business outcomes, predictable timelines, and proactive scope management. πŸ€– AI-ASSISTED ENGINEERING STACK I lean heavily into modern tools like Cursor, Claude Code, GitHub Copilot, and GPT-4o to compress prototyping, debugging, test generation, and boilerplate implementation times. The Senior Advantage: While AI handles the execution velocity, all foundational architecture choices, query optimizations, security controls, and system designs remain deeply grounded in my 14 years of real-world engineering experience. You get the speed of AI combined with the judgment of a veteran developer. 🚚 TECHNICAL CAPABILITIES & KEYWORDS API & Backend Architecture: Node.js, TypeScript, NestJS, Express.js, REST APIs, GraphQL (Apollo), Microservices, and Event-Driven Systems. Data Layer & Caching: PostgreSQL, MySQL, MongoDB, Redis caching, schema design, migrations, and performance tuning via Prisma, TypeORM, and Sequelize. Integrations & Asynchronous Workers: Stripe, PayPal, SendGrid, Twilio, Webhooks, and robust background processing setups using BullMQ, RabbitMQ, and AWS SQS. Security & Identity: Authentication/Authorization (JWT, OAuth2, SSO), RBAC, rate limiting, and strict runtime input validation using Zod and class-validator. Cloud, DevOps & Quality: Docker, GitHub Actions CI/CD pipelines, AWS ecosystem (EC2, Lambda, RDS, S3), monitoring/logging (Pino, Winston, OpenTelemetry), and testing frameworks (Jest, Supertest, Cypress). πŸ› οΈ WORKFLOW FOR PREDICTABLE SUCCESS Discover: Clarify business goals, engineering constraints, and core success metrics. Plan: Propose a transparent, lightweight roadmap with clear milestones and estimates. Build: Deliver highly readable, isolated pull requests complete with full test coverage. Harden: Implement proactive observability, error logging, and defensive security measures. Handover: Provide production runbooks, clean API documentation (OpenAPI/Swagger), and architectural transition guides. ⏱️ FIRST 1–2 WEEKS: QUICK-WIN DELIVERABLES To build immediate momentum, here is what I typically deliver during our first sprint: An API & Infrastructure Health Report highlighting immediate performance, security, and developer-experience improvements. A fully automated CI/CD pipeline configuration (build, lint, type-check, and automated testing) with a staging environment deployment. A high-priority endpoint refactor or feature implementation that is completely typed, tested, and self-documenting. 🎯 Have a brief, existing repository, or product backlog ready to go? Share it with me today. I’ll review your technical constraints and reply with a targeted action plan highlighting immediate quick wins, an optimized timeline, and exactly how we will measure success for your next release.

πŸ‡ΊπŸ‡¦Kropyvnytskyy, Ukraine$37/hr100% JSSSince Feb 2026
GlobeUpwork
MRR
$1,727
🌍#26.8K/363K
πŸ‡ΊπŸ‡¦#1,520/12.9K
Recent Earnings
$10,360
🌍#26.8K/363K
πŸ‡ΊπŸ‡¦#1,520/12.9K
Total Earnings
$10,360
🌍#181K/363K
πŸ‡ΊπŸ‡¦#8,166/12.9K
Avg. Per Project
$10,360
🌍#14.2K/363K
πŸ‡ΊπŸ‡¦#1,035/12.9K
Recent Projects
1
0f1h
🌍#320K/363K
πŸ‡ΊπŸ‡¦#11.9K/12.9K
Total Projects
1
0f1h
🌍#320K/363K
πŸ‡ΊπŸ‡¦#11.9K/12.9K
MRR Performance Over Time
$50k$25k$0
6 mo ago3 mo agoNow
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World Skill Rankings
of 47
#4
JavassistTop 6%
#35Socket.io
#96Elasticsearch
#104Cloud Architecture
#116Solution Architecture
#137Redis
#274App Development
#290Amazon
#296Google Cloud Platform
#342Product Development
#367NestJS
#409Back-End Development
#427ExpressJS
#724Docker
#943MongoDB
#1,252PostgreSQL
#1,557TypeScript
#1,563Next.js
#2,432Node.js
#3,478JavaScript
πŸ‡ΊπŸ‡¦Ukraine Skill Rankings
of 4
#2
JavassistTop 25%
#6Cloud Architecture
#8Socket.io
#12Solution Architecture
#16Elasticsearch
#19Amazon
#20Product Development
#25Google Cloud Platform
#27Redis
#36App Development
#47ExpressJS
#53Back-End Development
#60NestJS
#82Docker
#124MongoDB
#143PostgreSQL
#150Next.js
#206TypeScript
#264Node.js
#500JavaScript
Stanislav K. β€” Top 12% in Ukraine | UpworkMRR