Java Microservices Backend Engineer with Angular Frontend

Lasya N

+1-913-***-**** ******.***@*****.*** LasyaN Kansas City, MO

PROFESSIONAL SUMMARY

Java Developer with 3+ years of experience supporting and enhancing microservices-based applications using Java 8/11, Spring Boot, and RESTful APIs. Hands-on experience with event-driven systems (Kafka), containerized services (Docker, Kubernetes – exposure), and application observability using Splunk. Proven collaborator in Agile teams, contributing to scalable, secure, and resilient backend services in production environments.

SKILLS

Frontend: Angular 1x/9/10, TypeScript, JavaScript, jQuery, RxJS, HTML5, CSS3, Node.js, AJAX, JSON

Backend & Frameworks: Java 8/11, Spring Boot, Spring MVC, RESTful APIs, Microservices, JPA/Hibernate, JDBC, API Gateway concepts

Cloud Platforms: AWS (S3, EC2, RDS, Lambda, CloudFormation, CloudWatch), Azure DevOps, GCP

CI/CD & DevOps: GitHub, Git, Jenkins, GitLab CI/CD, Artifactory, uDeploy, Docker, Kubernetes (hands-on exposure)

Testing: JUnit, Mockito, Jasmine, Karma, Cucumber (BDD), Jest, SoapUI, SonarQube

Databases: PostgreSQL, Oracle, MySQL, MongoDB, DynamoDB (schema design & query optimization)

API & Documentation: Swagger/OpenAPI, WSDL, SOAP, JSON/XML

Observability & Monitoring: Splunk, centralized logging, metrics, instrumentation (exposure to ELK / Grafana / Prometheus)

PROFESSIONAL EXPERIENCE

Full Stack Developer, Centene, USA January 2024 – Present Responsibilities:

Developed Angular and TypeScript components integrated with Spring Boot microservices for claims and eligibility workflows, improving processing speed by 20%.

Designed and developed Spring Boot microservices exposing RESTful APIs, documented using Swagger/OpenAPI.

Integrated event-driven features using Kafka and JMS to support asynchronous processing and real-time updates.

Optimized Spring Boot services for performance, scalability, and security, improving response times and reliability.

Strengthened PHI security using Spring Security and OAuth2, ensuring HIPAA compliance.

Enhanced system observability using Log4J, Splunk dashboards, logging, and distributed tracing.

Supported containerized Spring Boot services deployed via Docker and Kubernetes, assisting with troubleshooting and stability.

Created and maintained technical design documents, interface specifications, and implementation notes for enterprise Java services.

Designed and maintained database objects including tables, indexes, stored procedures, and performed DDL/DML operations.

Performed production support activities including root cause analysis, debugging, and resolution of high-priority issues in live environments.

Worked with XML and JSON payloads for system integrations and service-to-service communication.

Worked with API authentication and authorization flows using OAuth2 and secured REST endpoints behind gateway-style routing.

Optimized SQL Server and Oracle queries, improving high-load API performance by 15%.

Wrote unit and integration tests using JUnit and Cucumber to validate REST APIs and business workflows.

Collaborated in Agile Scrum teams using GitHub for version control, code reviews, sprint planning, and delivery.

Java Developer, Kinara Capital Bank, India May 2021 –July 2023

Responsibilities:

•Developed Spring Boot microservices with Kafka and RabbitMQ to support event-driven loan and KYC workflows.

•Built RESTful APIs and implemented Swagger-based documentation and versioning practices.

•Optimized PostgreSQL and Oracle stored procedures, triggers, and indexes, improving transaction performance by 20–30%.

•Developed server-side Java services using Spring Boot and Spring Data JPA.

•Implemented Spring Security and OAuth2 to secure financial data and APIs.

•Developed unit and integration tests using JUnit, Mockito, and Cucumber to ensure service reliability.

•Automated builds and deployments using Jenkins, Git, and Azure DevOps, reducing deployment failures by 30%.

•Enhanced caching, batching, and business logic to improve loan evaluation performance by 10–15%.

•Implemented structured logging and monitoring using Log4J and Splunk for production issue analysis.

•Collaborated in Agile Scrum teams with analysts, testers, and architects.

PROJECTS

Scalable Transaction Processing Engine

Designed and implemented a high-throughput transaction processing engine in Java to handle concurrent payment-like operations.

Used HashMaps, Queues, and Priority Queues to track transaction state, retries, and ordering guarantees.

Built unit and stress tests covering 50+ edge cases to validate correctness and performance under load.

Analyzed time and space complexity of core operations and iteratively optimized performance.

Graph-Based Routing & Dependency Analyzer

Built a graph-based system to model dependencies and routing between nodes using adjacency lists.

Implemented BFS, DFS, and Topological Sort to analyze reachability, detect cycles, and compute valid execution orders.

Optimized graph traversal algorithms to reduce runtime on large inputs.

Added test cases covering disconnected graphs, cycles, and edge conditions.

Neural network architecture for multi-label object recognition using feature fusion. (International Conference on Innovative Data Communication Technologies and Application, ICIDCA 2022)

•Applied core artificial intelligence and machine learning concepts by designing and evaluating an ensemble-based object recognition system, using transfer learning to improve accuracy and performance on real-world image datasets.

Detecting and tracking assessment of well-organized poses in videos dynamically. (THE SEYBOLD REPORT)

•Built a modular backend pipeline to process video data and extract structured insights using pre-trained AI models, demonstrating practical application of AI concepts in data processing and automation workflows.

EDUCATION

MS in CS – University of Missouri, Kansas City GPA-3.9/4 Graduation: May 2025

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