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HEMANTH KRISHNA - Sr. Full Stack Developer | Node.js, Java, AWS, TypeScript | API & Cloud Specialist

anurag.y@tekservs.com

Location: Frisco, Texas, USA

Relocation: Open

Visa: H1B

Resume file: Hemanth_Java Fullstack_1748902317703.pdf Please check the file(s) for viruses. Files are checked manually and then made available for download.

HEMANTH KRISHNA Sr. Full Stack Developer | Node.js, Java, AWS, TypeScript | API & Cloud Specialist Frisco, TX, 940-597-8480 marella.h.krishna@gmail.com SUMMARY Results-driven Full Stack Developer with 6+ years of experience building scalable, high-performance web and enterprise applications. Expert in front-end frameworks (Angular 2 17, React.js), backend technologies (Java 8 17, Spring Boot, Node.js), and cloud-native microservices using AWS and Docker. Skilled in: API development with Node.js, TypeScript, NestJS, and Java (Spring Boot) Cloud-native architecture using AWS Lambda, S3, Step Functions, DynamoDB CI/CD with Jenkins, GitHub Actions, Bamboo, Maven, Docker Infrastructure as Code using AWS CDK Integration of structured/semi-structured data (JSON, XML, CSV) via S3 pipelines Secure authentication using JWT, OAuth 2.0, Azure AD SAFe Agile ceremonies including PI Planning, ART sync, and daily stand-ups WORK EXPERIENCE Newrez Mortgage Coppell, TX Sr. Full Stack Developer May 2023 Till date Designed and developed scalable, responsive UI using Angular 17 and React.js with TypeScript. Created modular Angular services, reusable components, and efficient routing architecture. Developed and integrated APIs using NestJS and Node.js, following best practices in controller service design. Built cloud-native microservices using Java 17, Spring Boot, and AWS Lambda. Orchestrated data workflows using AWS Step Functions for fault-tolerant execution. Processed and ingested structured (CSV), semi-structured (JSON, XML) data from S3. Provisioned infrastructure using AWS CDK for repeatable deployments. Implemented secure authentication using OAuth 2.0 and integrated with Azure AD. Deployed services using Docker on AWS EC2 and OpenShift clusters. Documented APIs using Swagger and collaborated closely with UI developers. Participated in SAFe Agile ceremonies including PI Planning and Sprint Reviews. Environment: Java 8/17, Spring Boot, WebFlux, Kafka, Node.js, NestJS, Angular 17, React.js, Redux, AWS (Lambda, EC2, Step Functions, DynamoDB, CDK), Docker, OpenShift, Swagger, Jenkins, Bamboo, Maven, MySQL, Cassandra, Git, Agile/SAFe AbbVie Remote Frontend Developer Oct 2021 Apr 2023 Developed scalable microservices using Java, Spring Boot, and Hibernate. Designed architecture components using UML (Use Case, Sequence, Class diagrams). Built dynamic dashboards with AngularJS, JSP, jQuery, and Bootstrap. Consumed and exposed REST APIs for integration with internal and external systems. Tapped into structured data sources using Oracle DB, optimized SQL queries. Built CI/CD pipelines using Jenkins and Bamboo, integrated with GitHub. Deployed containerized services via Docker to AWS EC2 and PCF environments. Connected to monitoring/alerting pipelines via AWS CloudWatch. Integrated with Ping Identity and OAuth 2.0 for secure access. Participated in SAFe Agile ARTs, contributing to PI Planning and Retrospectives. Developed automation scripts for API testing using Postman and REST Assured, ensuring compliance with business logic and error-handling rules. Reverse engineered existing Java-based legacy systems to extract business logic and reimplement in microservice format. Integrated XML-based data feeds into services using JAXB and custom parsers for downstream processing. Built monitoring dashboards using CloudWatch and custom metrics to track API throughput and failure rates. Maintained Swagger/OpenAPI documentation for all services to support seamless frontend backend integration. Refactored legacy Java monolith APIs into modular Spring Boot microservices deployed on AWS EC2 and PCF. Collaborated with security teams to integrate OAuth 2.0 and Ping Identity for secure API access and auditing. Environment: Java, Spring Boot, Hibernate, AngularJS, Node.js, REST, Oracle, Docker, Jenkins, Bamboo, AWS (EC2, RDS, S3, CloudWatch), Ping Identity, GitHub, Rally, Agile/SAFe SMG Infotech Hyderabad, India React.js Frontend Developer Mar 2019 Aug 2021 Developed REST APIs and microservices using Java 8, Spring Boot, and Spring Security. Built reusable front-end modules using React.js, Redux, Bootstrap, and ES6. Connected React apps with backend APIs and implemented form validation and state management. Created event-driven microservices using Kafka and Node.js for real-time processing. Integrated MongoDB and DynamoDB for handling unstructured/structured datasets. Utilized Webpack and Babel for optimized builds. Built secure authentication with JWT and implemented role-based access control. Deployed microservices in AWS using Docker and Git pipelines. Applied TDD with Jest and maintained high test coverage for React components. Managed tasks using Bitbucket and JIRA within Agile Scrum environment. Designed and implemented batch upload APIs to support bulk data ingestion from CSV and JSON files. Created middleware logic in Node.js to validate and transform incoming payloads before persisting to MongoDB. Developed file-based integration pipelines that processed XML and delimited files dropped into S3 buckets. Built reusable AWS Lambda functions triggered by S3 events for file parsing and metadata extraction. Collaborated with QA to create test suites covering edge cases for asynchronous API flows using Jest and Postman. Engineered Lambda-based ETL jobs to extract, transform, and load data from S3 into MongoDB and DynamoDB. Integrated file validation mechanisms for S3 triggers to ensure data quality before processing. Participated in end-to-end system design using Sequence and Activity diagrams for new API integrations. Environment: Java 8, Spring Boot, Spring Security, React.js, Node.js, Kafka, MongoDB, Redux, AWS (S3, EC2, DynamoDB), Docker, Webpack, JWT, Bitbucket, JIRA, Agile TECHNICAL SKILLS Languages & Frameworks: Java (8 17), Spring Boot, Hibernate, NestJS, Node.js, JSP, JDBC Frontend: Angular (2 17), React.js, Redux, TypeScript, JavaScript, HTML5, CSS3, Bootstrap, jQuery API & Web Services: REST, SOAP, Swagger, JSON, XML Cloud & DevOps: AWS (Lambda, EC2, S3, Step Functions, CDK, DynamoDB, IAM), Docker, Kubernetes, OpenShift, PCF Databases: Oracle, MySQL, MongoDB, Cassandra, DynamoDB CI/CD & Version Control: Jenkins, GitHub Actions, Bamboo, Git, Bitbucket, Maven, SVN Testing Tools: JUnit, Mockito, Jest, Selenium, Jasmine, Karma IDEs & Platforms: Eclipse, VS Code, Spring Tool Suite EDUCATION Masters in Information Systems - University of North Texas Bachelors in Computer Science and Engineering Gitam University Keywords: continuous integration continuous deployment quality analyst user interface javascript sthree database active directory Texas