Full Stack Engineer working with Node.js, TypeScript, React and distributed systems.
I build and modernize telecom platforms across provisioning, subscriber lifecycle, VoLTE/IMS, M2M/IoT and operational interfaces.

• Node.js, TypeScript, NestJS, Fastify, Express, Python and PHP
• REST APIs, Swagger/OpenAPI and asynchronous processing
• Microservices, event-driven architecture and provider integrations
• Idempotency, retry, DLQ, Saga and Strangler migration patterns
• Jest, Vitest, integration tests and contract validation

• MySQL, MariaDB and PostgreSQL
• Redis/Valkey for cache, coordination and temporary state
• Data modeling, query analysis, indexes and connection pooling
• Transaction boundaries, reconciliation and consistency between services

• AWS EKS, Lambda, API Gateway, SQS, CloudWatch, X-Ray, SSM and Secrets Manager
• Docker, Kubernetes, Helm, GitOps and Argo CD
• CI/CD pipelines, health checks, autoscaling and feature flags
• Production troubleshooting, observability and incident response

• SIM lifecycle, activation, blocking, reactivation and service control
• HLR/HSS, IMS and VoLTE provisioning flows
• Port-in/Port-out, recharge and subscriber lifecycle
• MVNO, M2M/IoT and dual-network connectivity
• Identity-compliance workflows and operational reconciliation

• React, Angular, TypeScript, JavaScript, HTML, CSS and Vite
• Operational dashboards and API-driven interfaces
• Responsive layouts, state management and backend integration
• Legacy frontend maintenance and incremental modernization