Working remotely from Spain (clients: Europe, UK, US) · Open to relocation

Hello, I'm
Yahor Zubkou

I design and build secure, scalable platforms for fintech, streaming, healthcare, and e-commerce. 9+ years with Node.js, TypeScript, React, GraphQL & AWS.

About me

Senior Full-Stack Developer with 9+ years building scalable cloud-native applications across fintech, healthcare, streaming, and enterprise sectors. Architected AWS, Azure solutions supporting millions of users and high-volume transaction processing while leading development teams. Led backend engineering teams delivering healthcare platforms serving 450+ medical specialties, architected streaming infrastructure supporting 1.7B+ video views across MENA region, and optimized high-load systems achieving 85-90% test coverage with improved query performance.

Team LeadershipCloud Architecture450+ Medical Specialties 1.7B+ Video Views85-90% Test CoverageStreamingHealthcareFintech

Selected projects

Cloud-Native Delivery Platform visualization

Cloud-Native Delivery Platform

A cloud-native food delivery platform built with serverless microservices on AWS. Designed for peak-load resilience and scalability.

  • AWS
  • Serverless
  • Node.js
  • DynamoDB
Video Streaming Platform visualization

Video Streaming Platform

A large-scale video streaming platform supporting web, iOS, and Android with comprehensive microservices architecture for authentication, analytics, gamification.

  • Node.js
  • Redis
  • MySQL
  • CI/CD
  • AWS
  • Datadog
Medical Booking visualization

Medical Booking

A multitenant telemedicine booking system with secure OAuth integration and real-time communication capabilities for healthcare providers and patients.

  • Nest.js
  • SQL Server
  • Redis
  • BullMQ
  • WebSockets
  • Azure
Oil Production Monitoring visualization

Oil Production Monitoring

A real-time monitoring system for oil production facilities with comprehensive dashboards for production analytics and operational insights across multiple sites.

  • Node.js
  • MongoDB
  • Vue.js
  • Real-time
On-Premise File Sharing visualization

On-Premise File Sharing

A secure enterprise file-sharing solution designed for on-premise deployment with comprehensive authentication and business-grade security features.

  • Docker
  • Java
  • MySQL
  • React
Smart City Platform visualization

Smart City Platform

A smart city platform enabling digital-ID payments and civic services with scalable architecture designed for municipal governments and citizens.

  • Node.js
  • CockroachDB
  • Azure
  • Kubernetes
Marketing Analytics Platform visualization

Marketing Analytics Platform

A comprehensive marketing analytics platform with dynamic data extraction capabilities and responsive frontend for data visualization and campaign management.

  • Apollo GraphQL
  • PostgreSQL
  • React
  • Vite
  • Tanstack Query
Social Media for Athletes visualization

Social Media for Athletes

A social media platform connecting athletes with fans and potential sponsors, designed for community building and sponsorship opportunities in sports.

  • Next.js
  • Nest.js
  • MySQL
  • AWS
Customizable Form Builder visualization

Customizable Form Builder

A customizable form builder platform with reusable UI components, integrated into emergency dispatch and monitoring systems for rapid response coordination.

  • React
  • TypeScript
  • Storybook
  • RTL
  • Jest

Core skills

Languages

9+ years

JavaScriptTypeScriptSQLHTMLCSSXML

3-4 years

PythonBash

Libraries/Frameworks

8-9 years

React.jsRedux ToolkitNode.jsExpress.jsSequelize

6-7 years

Nest.jsTypeORMJestReact Testing Library

4-5 years

Vue.jsGraphQLMaterial UIStorybook

3 years

AngularNuxtTailwindNext.jsServerlessKeycloak

Databases

9 years

MySQL

5-6 years

PostgreSQLMongoDBRedisSQL Server

2 years

CockroachDB

DevOps / CI/CD

5 years

DockerAWS CodePipeline/CDKBitbucket Pipelines

3 years

KubernetesTerraformGithub ActionsJenkinsCircleCIGitlab Pipelines

Cloud/Monitoring

5 years

AWS LambdaAWS EC2AWS S3AWS RDSAWS DynamoDBAWS SQSAWS CognitoAWS CloudFormationAWS ECSAWS EBSAWS SESAWS CloudWatch

3 years

Azure App ServiceAzure CacheAzure RedisAzure SQLAzure CosmosDBAzure FunctionsAzure Entra IDAzure AISonar

2 years

GCP Compute EngineGCP Cloud LoggingGCP Cloud TasksGCP Pub/SubDataDogSnykSentry

Tools and Productivity

GitHub CopilotClaude CodeOpenAI APILangChainJiraTrelloScrumAgilePostmanGitSwagger

Leadership & Experience

Team Leadership: Leading development teams, technical interviewing, mentoring engineers, onboarding new team members, cross-functional collaboration with product and design teams.

Architecture & Planning: Project planning, architecture decisions, system design, code review processes, establishing development standards and best practices.

Development Practices: Secure development, scalability planning, CI/CD implementation, TDD/BDD methodologies, automated testing strategies (Jest, RTL), Agile/Scrum processes.

Let’s work together

Best for roles in backend/full-stack, platform engineering, and solution architecture. I’m currently working remotely from Spain for clients in Europe, UK, and US. Open to relocation.

📧 Email: careers@yahor.dev

🔗 LinkedIn: Yahor Zubkou

💼 GitHub: taurusdoge