Senior Full-Stack Java Developer with Spring Boot Core Expertise

Saramsh Khadka

316-***-**** ***************@*****.*** LinkedIn

PROFESSIONAL SUMMARY

Experienced Full Stack Java Developer with proven expertise in Java, Spring Boot, and microservices architecture. Demonstrated success in designing scalable, secure payment system solutions and enhancing application performance through efficient object-oriented design. Skilled in RESTful API development, agile methodologies, and CI/CD pipelines to deliver robust software solutions. TECHNICAL SKILLS

• Markup Languages: XML, JSON, HTML5, CSS3, Bootstrap

• J2EE Technologies: EJB, Servlets, JSP, JDBC, JNDI

• Web Technologies: HTML5, CSS, XML, Pivotal Cloud Foundry, Containerization, Jenkins Cloud Bees, JQuery, JavaScript, Angular JS, JSF, Node.js, React JS, vue.js, quasar, vuetify, typescript

• Cloud Platform: Google Cloud Platform (GCP), Azure, Amazon Web Services (AWS)

• Frameworks: Spring Boot, Spring (MVC, Security, Cloud, Boot), Hibernate, Spring Data JPA, Angular (10, 12, 14), AngularJS, Spring Cloud, Spring Al

• Tools & IDE: Eclipse IDE, IntelliJ, Visual Studio, Spring Tool Suite (STS), Jasper Reports

• Version Control: GIT, SVN, Bitbucket

• Web/Application Servers: Tomcat, WebSphere, JBoss, Glassfish

• Databases & Big Data Ecosystem: Oracle 11g-12c, MySQL, DB2, MongoDB, Firebase, Oracle PL/SQL Apache Cassandra, Hadoop, Postgres

• J2EE Frameworks: Spring Boot 1.x, Spring 3.x, Hibernate 3.x, Struts 2

• Design Patterns: Inversion Of Control (IOC), Singleton, Prototype, Builder, Adaptor, Factory, Gate Way, Facade, MVP, MVC

• Testing: Junit, ALM, ETL, TestNG

• Build Tool: Maven, Gradle, ANT

• Web Services: Apigee and RESTful Web Services, SOAP Web Services -JAX-WS-API

• Authentication & Security: Spring Security, OAuth2, Okta Auth, Google Authenticator, JWT

• Methodologies: Agile, Waterfall, Scrum, Lean Six Sigma

• Tools And Utilities: Log4J, Ant, Maven, Gradle, Docker, Mockito, Jenkins, Postman, SonarQube, Terraform, Splunk, COTS, Chef, Ansible, SaltStack, Argo, Spinnaker, Flux, Datadog, Sentry, Honeycomb, Caas Openshift

• Architecture: Monolithic, Microservice, Event-Driven Architecture, Server-Client Architecture

• Programming Languages: Java, Python, Kotlin

PROFESSIONAL EXPERIENCE

PNC Jan 2024 - Present

Full Stack Java Developer Farmers Branch, TX

• Modernized backend solutions by leveraging advanced Java features including sealed classes, pattern matching, and text blocks, resulting in cleaner code, enhanced readability, and future-ready implementations.

• Engineered scalable, event-driven microservices and integrated them with Vue.js and Angular SPAs to deliver seamless, high-performing user experiences and improved responsiveness.

• Designed and optimized Kafka-driven microservices using the publish-subscribe model to ensure reliable messaging, high throughput, and enhanced system scalability.

• Developed RESTful services using Spring Boot, employing Spring Actuator and starter dependencies to simplify configuration management, monitor system health, and streamline observability.

• Established secure authentication and authorization workflows with Spring Security, OAuth2, and JWT, protecting sensitive data and securing communications between client and server layers.

• Implemented design patterns and best coding practices to build high-performance, scalable backend solutions tailored to enterprise-grade requirements.

• Collaborated with UX designers using Figma to translate interactive prototypes into responsive Vue.js and TypeScript components, ensuring design consistency, accessibility, and seamless integration with Spring Boot microservices.

• Constructed responsive single-page applications (SPAs) using Vue.js and Angular, leveraging Vuex for state management, reactive forms, and component-based architecture to deliver intuitive, high-performance user interfaces..

• Integrated Spring Boot microservices with Angular applications to streamline workflows and enhance operational efficiency.

• Migrated legacy SQL Server databases to PostgreSQL, optimizing query performance and indexing strategies to achieve greater scalability and reliability.

• Monitored AWS cloud resources using CloudWatch and analyzed logs to proactively track application health and troubleshoot performance issues.

• Built serverless microservices with AWS Lambda to create cost-efficient, highly scalable architectures.

• Integrated AWS API Gateway with Lambda functions to effectively manage frontend-to-backend communications in serverless environments, boosting application responsiveness.

• Automated infrastructure provisioning with Terraform, ensuring consistent deployments, scalable architecture, and reproducible environments across all stages.

• Streamlined CI/CD pipelines by integrating Jenkins to automate the build, testing, and deployment processes for faster delivery cycles.

• Enforced cloud security best practices by implementing SSH key-based authentication and policy-driven access controls to safeguard both frontend and backend services.

• Enhanced observability with Log4j and Splunk by setting up dashboards for real-time performance monitoring and proactive issue detection.

• Utilized Bitbucket for effective version control and employed JIRA for sprint management, progress tracking, and optimized team collaboration.

• Developed automated unit tests for frontend and backend components using JUnit and Mockito, maintaining an 80% code coverage in adherence with TDD principles.

• Integrated SonarQube into the pipeline to perform automated code quality checks, monitor vulnerabilities, and manage dependency security.

• Participated in architecture discussions, design reviews, and code analysis sessions ensuring the delivery of high-quality, scalable web solutions.

• Led technical design reviews and defined coding standards to ensure scalable, maintainable architecture.

• Mentored junior developers through code reviews, pair programming, and sprint demos.

• Authored detailed technical documentation and architecture diagrams for microservices and APIs.

• Integrated AI tools like GitHub Copilot and Amazon Q to automate testing and boost productivity. Liberty Mutual Sep 2021 - Dec 2023

Full Stack Java Developer Plano, TX

• Designed and developed scalable RESTful APIs using Java and Spring Boot, integrating with Vue.js and TypeScript front-ends to deliver performant, maintainable, and secure service solutions.

• Built resilient, modular microservices leveraging Spring Cloud components (API Gateway, Config Server, Circuit Breaker, Load Balancer, Service Discovery) and connected them with Vue.js TypeScript clients for seamless data flow.

• Secured applications by implementing Spring Security, OAuth2, and JWT for robust authentication and authorization, ensuring compliance with enterprise-grade security standards.

• Created Spring Batch jobs with custom item readers, processors, and writers to efficiently process and manage large volumes of data.

• Utilized Hibernate ORM for persistence and crafted optimized HQL queries for efficient entity mappings with the Oracle database.

• Developed dynamic, responsive UIs using Vue.js, TypeScript, Angular 10, HTML5, CSS3, and JavaScript, improving usability and user engagement across multiple devices.

• Enhanced existing Angular components to improve interface responsiveness and overall user experience.

• Applied modular design principles by creating reusable Angular components, thereby streamlining maintenance and promoting scalability.

• Managed containerized deployments using Docker, Kubernetes, and OpenShift to enable automated orchestration and scalable microservices in production.

• Orchestrated CI/CD pipelines with Jenkins to automate builds, Docker image publishing, and Kubernetes deployments for both Spring Boot APIs and Vue.js TypeScript applications.

• Deployed and scaled full-stack applications on GCP using App Engine and Cloud Run, achieving serverless execution and infrastructure cost optimization.

• Automated infrastructure provisioning via Terraform, applying Infrastructure-as-Code (IaC) principles to ensure reproducibility and environment consistency.

• Designed data pipelines using Hadoop and Spring JDBC, optimizing complex queries and enhancing data extraction workflows.

• Managed MongoDB for dynamic content storage, leveraging JSON documents for flexible schema designs and accelerated server-side processing.

• Performed database schema migrations during deployments, ensuring data consistency and integrity across environments.

• Collaborated with the Kafka Admin team to configure Kafka clusters in both QA and production environments, ensuring reliable messaging.

• Monitored and troubleshot Kafka pipelines to identify message failures and improve overall system reliability.

• Authored unit tests using JUnit and Mockito, maintaining high test coverage and ensuring code stability throughout the build process.

• Automated code quality checks via SonarQube and managed dependencies with Dependabot to enhance security and maintainability.

• Integrated Firebase and GCP Identity Platform for secure authentication, SSO, and role-based user management across web applications.

• Implemented robust logging with Log4j to streamline error detection and debugging, consequently reducing production downtime.

• Engaged actively in Agile ceremonies including daily stand-ups, sprint planning, backlog refinements, retrospectives, and reviews.

• Collaborated with Product Owners, Scrum Masters, and Business Analysts to gather requirements, define priorities, and ensure successful project delivery.

• Worked alongside cross-functional teams to synchronize frontend, backend, and infrastructure efforts, improving delivery timelines and coordination.

• Collaborated with solution architects on trade-offs for performance, scalability, and maintainability.

• Enhanced event-driven systems using Kafka, optimizing partitioning, offsets, and consumer groups.

• Designed and implemented GraphQL APIs for efficient data fetching and reduced overfetching. Manulife Feb 2019 - Aug 2021

Java Developer Boston, MA

• Collaborated with cross-functional teams to design and deliver enterprise-level web applications using Java Spring Boot, enhancing application performance and elevating user satisfaction.

• Applied industry-standard best practices and design patterns to construct scalable, maintainable solutions, reducing maintenance time and increasing application reliability.

• Leveraged Java 8 features including Lambda Expressions, Functional Interfaces, and Stream API to improve code efficiency and readability, resulting in faster application processing.

• Integrated RESTful APIs with frontend interfaces to improve data handling, decrease page load times, and increase user satisfaction.

• Supported the development of microservices using Spring Boot and Spring MVC while incorporating Spring Security for robust authentication and authorization of backend services.

• Contributed to the design and maintenance of both RESTful and SOAP web services, facilitating seamless data exchange and enhanced system interoperability.

• Assisted in containerizing system architecture with Docker and Kubernetes, thereby improving scalability and expediting deployment cycles.

• Supported AWS infrastructure setups with services such as EC2, S3, RDS, and ELB, optimizing deployments for enhanced performance and system reliability.

• Helped configure IAM policies and Multi-Factor Authentication, thereby enhancing secure access management.

• Developed unit and integration tests using JUnit and Mockito, ensuring stable application functionality through rigorous testing.

• Participated in setting up CI/CD pipelines with Jenkins, Maven, and GitHub, automating build and deployment workflows efficiently.

• Facilitated database integration with PostgreSQL and Hibernate by optimizing queries to improve data retrieval efficiency.

• Assisted in developing data validation packages for processing flat files into PostgreSQL databases, ensuring data accuracy.

• Monitored and resolved minor production issues under senior supervision, reducing downtime and promoting improved system stability.

• Participated in Agile ceremonies such as daily stand-ups, sprint planning sessions, and retrospectives to maintain efficient team coordination.

• Built and deployed full-stack apps using Python, Spring Boot, Angular, and Vue.js with TypeScript, delivering responsive and scalable web solutions.

• RESTful APIs and microservices with Spring Boot, integrating them with Vue.js and TypeScript front-ends deployed on GCP Cloud Run for seamless CI/CD.

• Used BigQuery and data pipelines for analytics and reporting

• Implemented CI/CD pipelines using Tekton for automated builds and deployments

• Designed scalable backend systems and optimized SQL queries for performance

• Collaborated with designers using Figma to translate high-fidelity prototypes into responsive Vue.js and TypeScript components, ensuring pixel-perfect implementation and consistent design systems across applications. EDUCATION

University of South Dakota

Master, Computer Science

Certifications

• PSM I Scrum Master

• AWS Certified Cloud Practitioner

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