Microservices Design & Development:
- Designing and developing modular, scalable, and independent microservices, knowledge of 12-factor app principles and expertise in decomposing monolith applications into microservices.
Communication Between Microservices:
- RESTful APIs for synchronous communication, Message Brokers for Implementing event-driven architectures using Kafka and RabbitMQ and gRPC/GraphQL for efficient communication in some scenarios.
Fault Tolerance & Resilience:
- Implementing circuit breakers using Hystrix, Resilience4j to ensure service reliability. Handling retries, fallbacks, and timeouts to increase system robustness.
Containerization & Orchestration:
- Containerization using Docker for microservice deployment. Orchestration with Kubernetes for scalable microservices.
Database Design:
- Polyglot persistence: Working with multiple databases, such as SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra). Ensuring data consistency in a distributed environment (eventual consistency, SAGA patterns).
CI/CD for Microservices:
- Implementing CI/CD pipelines using Jenkins, GitLab CI for automated testing and deployment.
Monitoring & Logging:
- Distributed tracing with Zipkin and Prometheus for microservice observability. Centralized logging using EFK Stack (Elasticsearch, Fluentd, Kibana).
RESTful API Design:
- Designing and developing REST APIs using HTTP principles and Expertise in URI design best practices (e.g., resource-based URIs, proper HTTP status codes). Versioning strategies for APIs (e.g., URL versioning, header versioning).
API Documentation & Specification:
- Using OpenAPI (Swagger) to document and auto-generate client code and server stubs. Writing clear and detailed API specifications, including request-response models, query parameters, and error codes.
Security & Authentication:
- Implementing OAuth 2.0, JWT, API keys, and OAuth scopes for secure access control. Experience with SSL/TLS encryption for secure communication. Knowledge of CORS (Cross-Origin Resource Sharing) and API throttling/rate limiting.
AWS Compute Services:
- EC2, ELB, Lambda, ECS & EKS
Team Management & Mentorship:
- Lead team of size 10 through high-pressure situations, managing urgent bug fixes, production incidents, or tight deadlines without compromising team morale.
Agile Project Management:
- Experience with Scrum, Kanban, and Scaled Agile Framework (SAFe) for driving iterative development and continuous delivery.
Security Best Practices:
- Secured RESTful APIs by using OAuth 2.0, JWT tokens, and API gateways for rate limiting and secure access control.
- Implemented API throttling, IP whitelisting, and security headers (e.g., Content Security Policy, Strict-Transport-Security) to prevent abuse and attacks.
- Applied CORS (Cross-Origin Resource Sharing) policies to prevent unauthorized API consumption.
- Applied AES encryption for sensitive data storage and RSA or ECC encryption algorithms for secure key management.
- Integrated end-to-end encryption in APIs and data masking for sensitive customer information.