Java Microservices Backend Developer with AWS Experience

SYED TOUQEER UL HASAN

SUMMARY

Software Developer with 2+ years of experience building scalable backend applications in enterprise and product-driven environments. Skilled in developing Java-based microservices using Spring Boot, REST APIs, and relational and NoSQL databases, with hands-on experience deploying applications on AWS and containerized platforms. Strong foundation in secure API design, CI/CD pipelines, and automated testing, collaborating with cross-functional teams to deliver reliable production systems across 10+ application modules.

TECHNICAL SKILLS

● Programming Languages: Java (8+), Python, SQL, JavaScript

● Backend Development & Architecture: Spring Boot, Spring MVC, RESTful API Development, Microservices Architecture, Layered Architecture (Controller-Service-Repository), Dependency Injection, Exception Handling

● Security & API Standards: Token-Based Authentication, Role-Based Access Control (RBAC), OpenAPI/Swagger Documentation

● Databases & Data Stores: DynamoDB, PostgreSQL, MySQL, MongoDB

● Cloud & Containerization: AWS (EKS, Lambda, API Gateway, DynamoDB, CloudFormation), Docker

● CI/CD & DevOps: Jenkins, GitLab CI, Maven, Kubernetes (EKS), Git

● Testing & Automation: JUnit 5, Selenium, Postman, Unit Testing, Integration Testing, Regression Testing, Smoke Testing, Test Automation in CI Pipelines

● Tools & Collaboration: Jira, Confluence, Bitbucket, GitLab, Swagger

● Operating Systems & Methodologies: Linux, UNIX, Windows, Agile/Scrum, SDLC, TDD, OOP Principles PROFESSIONAL EXPERIENCE

Software Developer Dell Technologies India Dec 2022 – Dec 2023

● Designed and maintained Java-based microservices using Spring Boot and RESTful APIs, deploying 16 production endpoints on AWS EKS to enable secure data exchange across 4 internal enterprise applications and support stable release cycles.

● Implemented a structured Controller Service Repository architecture with centralized exception handling and request validation, standardizing backend logic and reducing recurring production bug tickets across two release cycles.

● Developed backend data workflows using DynamoDB and relational query patterns to process 2M+ enterprise transaction records during reporting batches, maintaining stable response times under peak loads.

● Built and enforced token-based authentication and role-based access control (RBAC) mechanisms to secure service endpoints, ensuring controlled API access and adherence to internal enterprise security guidelines.

● Automated unit and integration tests using JUnit 5 and Postman, validating 240+ scenarios and integrating test runs into Jenkins and GitLab CI pipelines, preventing release of 14 high-severity defects.

● Containerized backend services using Docker and streamlined CI/CD workflows through Jenkins, reducing manual deployment steps from 12 to 3 and enabling production-ready builds within one business day.

● Partnered with QA teams to define and execute regression and smoke test strategies using Selenium, validating cross-browser functionality and backend API responses across Chrome and Edge prior to major production releases. Software Developer Robosoft Technologies India Aug 2021 – Nov 2022

● Developed backend REST services using Java and Spring Boot, building 15+ API endpoints to support 6 client facing web and mobile apps and maintaining average response times below 350 milliseconds under moderate concurrent traffic.

● Implemented data persistence using Spring Data JPA with PostgreSQL, designing indexed tables and optimized queries to manage datasets exceeding 2 million records and ensuring reliable execution of scheduled batch processes.

● Integrated MongoDB for document-based storage in feature modules with flexible schemas, optimizing query performance and improving retrieval speed for user generated content.

● Configured secure authentication using JWT based token validation, resolving 9 authorization findings identified during internal security reviews and strengthening endpoint access control.

● Built and executed unit test cases using JUnit, validating service-layer logic across 60+ test scenarios and performing API verification through Postman during integration and regression testing.

● Managed project builds using Maven and maintained source code through Git, refactoring legacy service components into modular classes and reducing average defect resolution time from 5 days to 2 days across 4 sprint cycles. PROJECTS

Intelligent Document Processing & Classification Platform:

● Constructed a backend-driven system to ingest, classify, and extract structured data from unstructured documents using Python, FastAPI, RESTful APIs, and Transformer-based Machine Learning (ML) models.

● Deployed the application on AWS (Lambda, API Gateway, S3, DynamoDB) with automated CI/CD pipelines, enabling real-time document processing and scalable API-based consumption. Cloud-Native Recommendation & Personalization Engine:

● Designed a microservices-based recommendation engine using Java, Spring Boot, REST APIs, and collaborative filtering algorithms, delivering personalized content recommendations based on user interaction data.

● Containerized services using Docker and deployed on Kubernetes (AWS EKS) with monitoring and logging, supporting real-time inference and fault-tolerant service communication. EDUCATION

Master of Science in Computer Science Governor State University Illinois, USA Jan 2024 – Dec 2025 Bolingbrook, IL +1-331-***-**** ****************@*******.*** Linkedin

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