Professional Expertise: ✔ 6+ years experience as a backend engineer: Java Spring Boot ✔ Expertise in designing back-end databases, components, REST APIs and GraphQL ✔ Hands-on experience in system architecture and data modelling. Experience with databases like PostgreSQL, MySQL ✔ Experience with AWS Linux VPS setup and deployment ✔ Experience AWS Cloud and Firebase ✔ Experience in Mirco-services My skills cover: Backend: ✔ Java, Spring Boot, GoLang, Firebase ✔ Database: PostgreSQL, MySQL, Redis. Cloud Firestore ✔ API gateways: Nginx, KrakendD, AWS API Gateway, Kong ✔ Security in mind: JWT tokens, OAuth, salted hashed passwords, safe secrets ✔ CI/CD and DevOps: GitHub, GitLab, Bitbucket with Docker, docker-compose, custom docker images, test and deploy automation ✔ API documentation (swagger, open API, apidoc) ✔ Testing: TDD, Junit, Integration testing ✔ Linux Shell Scripting ✔ GoLang ✔ Payment Gateways: Stripe, PayPal Others: ✔ Google APIs, Twilio API ✔ OOPS, MVC, Design Pattern and Functional Programming ✔ Jira, Trello, Gitlab, Bitbucket, Github, Aha ✔ Additionally: I created 2 awesome boilerplates written in Spring boot and Golang from scratch