Design, develop, and maintain scalable backend services in Go. Build REST and gRPC APIs, microservices, databases, and background processing. Improve performance, security (JWT/OAuth2), testing, CI/CD, and deployments with Docker/Kubernetes. Collaborate across teams, troubleshoot production issues, and contribute to architecture and documentation.

Design, implement, and maintain CI/CD pipelines and cloud infrastructure (AWS/Azure/GCP) using IaC (Terraform/CloudFormation/Ansible). Manage containers with Docker/Kubernetes, monitor systems, automate tasks with scripting, enforce security best practices, support incident response, and document operational procedures.

Design, develop, and maintain scalable Python backend services and APIs (REST/GraphQL). Integrate third-party services, optimize databases, implement auth, write tests, monitor production performance, and collaborate on architecture and code reviews to ensure secure, high-availability SaaS systems.