Senior Full-Stack Java Engineer 8+ Years Enterprise

Sayali Ahirrao

309-***-**** **************@*****.*** LinkedIn Github

Summary:

Senior Full Stack Java Engineer with 8+ years of experience designing and delivering scalable enterprise applications within the financial services domain, currently supporting mission-critical banking platforms at Bank of America and previously at Morgan Stanley. Strong backend expertise in Java (8–17), Spring Boot, Microservices Architecture, RESTful services, and cloud-native development on AWS and Azure. Proficient in building responsive single-page applications using React (Hooks, Redux) and Angular (v8+), integrating secure APIs and optimizing frontend performance for high-volume transactional systems. Experienced in event-driven architecture (Kafka/JMS), containerization (Docker, Kubernetes), and implementing CI/CD pipelines in regulated, high-availability environments.

Technical Skills:

Programming Languages: Java 8–17, Python, SQL, PL/SQL, JavaScript, TypeScript

Backend Technologies: J2EE, Spring Boot, Spring Cloud, Spring MVC, Spring Security, Spring Data JPA, Hibernate, JPA, JDBC, Microservices Architecture, RESTful APIs, GraphQL, JMS

Security & Authentication: OAuth 2.0, JWT, OpenID Connect, Spring Security

Frontend Technologies: React.js, Angular, HTML5, CSS3, Bootstrap, Redux, Node.js, Express.js

AI & Modern Development: GitHub Copilot, AI/ML Integration, NLP, LLMs, Generative AI, AI-assisted fraud detection APIs

Messaging & Streaming: Apache Kafka, RabbitMQ, ActiveMQ

Enterprise Middleware: IBM WebSphere (J2EE environments), Apache Tomcat, JBoss EAP

Databases: Oracle, MySQL, PostgreSQL, SQL Server, DB2, MongoDB, Cassandra, DynamoDB, Amazon Aurora

Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes (EKS/AKS), CI/CD, Jenkins, GitHub Actions

Testing Frameworks: JUnit, Mockito, Integration Testing, Regression Testing

Observability & Monitoring: ELK Stack, Prometheus, Grafana, Log4j, SLF4J

Build & Version Control: Maven, Gradle, Git (Gitflow), SVN, CVS, ClearCase

Operating Systems: Linux, Unix, Windows

Professional Experience:

Java Full Stack Developer - Bank of America, Charlotte, NC April 2025 - Present

Designed and developed scalable microservices using Java 11/17, Spring Boot, and Spring Cloud, delivering secure RESTful and GraphQL APIs for enterprise banking applications.

Developed React (TypeScript) single-page applications supporting enterprise banking workflows.

Designed reusable component architecture using Hooks and Context API.

Implemented Redux Toolkit for centralized state management across transactional views.

Optimized performance using lazy loading and memoization, reducing initial load time by 25%.

Increased frontend test coverage using Jest and React Testing Library.

Engineered secure authentication and authorization using OAuth 2.0 and JWT while delivering React-based frontend modules integrated with real-time backend services.

Developed event-driven architectures using Apache Kafka, IBM MQ, and JMS to enable high-throughput, fault-tolerant communication between distributed banking systems. Integrated AI/ML, NLP, LLMs and Generative AI capabilities, including AI-assisted fraud detection APIs, to enhance transaction monitoring and risk analysis.

Leveraged GitHub Copilot and AI-powered development tools to accelerate coding, improve code quality, and reduce development cycle time. Containerized applications using Docker and deployed to Kubernetes (EKS/AKS), ensuring high availability, auto-scaling, and cloud-native architecture on AWS.

Designed and implemented end-to-end CI/CD pipelines using Jenkins and GitHub Actions, automating build, test, security scanning, and deployment processes. Implemented observability and performance monitoring using the ELK Stack, Prometheus, and Grafana, improving system reliability and incident response times.

Implemented serverless architecture using AWS Lambda and Auto Scaling, configured IAM roles and VPC networking, and leveraged AWS SDK for service integration and secure resource access

Deployed and managed applications on Apache Tomcat and JBoss EAP, configuring services behind Nginx reverse proxy for secure and high-performance traffic routing.

Collaborated in Agile/Scrum teams to deliver secure, high-performance banking solutions, optimizing SQL/NoSQL databases, automating infrastructure, and ensuring compliance with enterprise security and DevSecOps standards.

Senior Java Full Stack Developer - VSLN International Inc, New Jersey, NJ Jun 2023 - Mar 2025

Developed HIPAA-compliant Spring Boot services aligned with FHIR and HL7 healthcare interoperability standards.

Built React-based clinical dashboards enabling secure patient record visualization and workflow management.

Implemented role-based UI rendering based on RBAC policies to ensure restricted access to protected health information.

Improved API response efficiency through query optimization and payload restructuring for MongoDB and PostgreSQL.

Applied Saga orchestration pattern to maintain transactional consistency across distributed healthcare services.

Collaborated with QA and compliance teams to ensure audit logging and regulatory adherence.

Defined API contracts and enhanced service-layer performance through optimized MongoDB and PostgreSQL integrations.

Designed and automated CI/CD pipelines using Azure DevOps, integrating build, test, security scanning, and deployment processes to accelerate release cycles.

Implemented monitoring, logging, and alerting using CloudWatch and Splunk, improving system observability, incident response, and regulatory compliance in production environments.

Java Full Stack Developer - LikeMinds Consulting Inc, New Jersey, NJ Dec 2022 - Jun 2023

Developed React (TypeScript) interfaces for insurance policy issuance and claims management workflows.

Built configurable, form-driven UI modules to support underwriting rules and eligibility validations.

Integrated React components with Spring Boot REST APIs to enable real-time policy updates and claims tracking.

Implemented role-based UI rendering aligned with backend authorization policies.

Improved usability by restructuring component hierarchy and enhancing state isolation across modules.

Collaborated with business analysts to translate insurance requirements into scalable UI solutions.

Supported backend services using Spring Boot and Drools for rule-based premium and claims calculations.

Designed and optimized complex SQL queries, stored procedures, and database indexing strategies to improve data retrieval performance and reduce system latency. Implemented end-to-end CI/CD pipelines using Jenkins, Git, and Gradle, automating build, test, and deployment processes across development and production environments.

Collaborated with cross-functional Agile teams to deliver secure, high-availability insurance solutions, integrating monitoring, logging, and automated testing to improve system reliability and operational efficiency.

Software Developer - Morgan Stanley, New York, NY Sep 2021 - Nov 2022

Designed and implemented Spring Boot–based backend services using Java 11/17 for financial trading and deal management platforms, incorporating Drools Rule Engine for dynamic pricing, risk validation, and rule-driven decision workflows.

Engineered Angular single-page applications (TypeScript, HTML5, CSS3) integrated with secured backend APIs, enabling real-time financial data visualization and transactional processing.

Developed Angular (v10+) SPA using RxJS for reactive state management in trading dashboards.

Built complex forms using Angular Reactive Forms with dynamic validations.

Implemented route guards and HTTP interceptors for secure API access.

Optimized change detection strategy to improve rendering performance in high-data screens.

Wrote unit tests using Jasmine/Karma to improve UI reliability.

Enhanced database performance through advanced SQL/PLSQL tuning, query optimization, and efficient JPA/Hibernate entity mapping strategies for large-scale financial datasets.

Orchestrated containerized deployments using Docker and Kubernetes, enabling scalable and highly available distributed services across cloud environments.

Implemented asynchronous communication using JMS/MQ and Kafka to improve system decoupling and ensure reliable event-driven processing.

Strengthened application security through Spring Security–based authentication, role-based authorization, and secure API integration aligned with enterprise banking compliance standards.

Integrated Redis caching and Elasticsearch indexing to enhance real-time data retrieval, search efficiency, and analytics capabilities.

IT Intern- FedEx Office Services, Memphis, TN Feb 2021 - April 2021

Created an automated solution using Java/Gradle to replace manual CRUD operations on Excel files, leading to a 40% productivity increase and a 95% accuracy improvement.

Contributed to backend service enhancements using Spring Boot and exposed REST endpoints to support internal automation tools.

Focused on diagnosing performance and functional issues through troubleshooting, testing, and process development.

Created comprehensive documentation detailing the implemented process, providing valuable insights and resources for the reliability team.

Worked in Agile teams with daily stand-ups, sprint planning, and test-driven development to enhance team collaboration.

IT Operational Assistant - Center for Mathematics, Science, and Technology, Normal, IL Feb 2020 - Dec 2020

Implemented Spring Boot service modules supporting educational and data-driven workflows.

Built responsive, component-based user interfaces using React.js and Next.js, delivering dynamic and accessible web applications integrated with backend services

Implemented multicolor function for the LED’s in smart houses with the help of Raspberry Pi using Go, Python and other programming languages.

Utilized AWS services (EC2, S3, Lambda) to deploy and manage cloud-based microservices, optimizing system performance and reliability.

Enhanced search and navigation experiences by implementing Elasticsearch-based product discovery features.

Collaborated with UX designers and product owners in Agile sprints to deliver customer-focused features and enhancements. Monitored application performance and resolved production issues to maintain high customer satisfaction.

Application Developer - IBM India Private Limited, Bangalore, India Jul 2016 - Jan 2019

Developed Java-based backend applications using Spring and core J2EE components to automate water supply monitoring systems, reducing downtime by 40%.

Designed and implemented RESTful services using Spring MVC and JSON for seamless integration between distributed enterprise components.

Built backend data processing modules in Java, incorporating statistical analysis and predictive modeling logic to enhance system intelligence and customer personalization.

Integrated machine learning models developed in TensorFlow and Scikit-Learn into Java services via REST APIs for production-grade deployment.

Migrated legacy Java applications to AWS (EC2, S3), improving scalability and reducing infrastructure costs by 20%.

Optimized database interactions using JDBC/Hibernate and improved query performance for high-volume transactional workflows.

Facilitated knowledge transfer onsite with IBM UK team to ensure seamless project transition

Academic and Research Experience

ML Based Health Detection and Tracking System, (Python, PHP, HTML, CSS, AWS) April 2020 - Dec 2020

Publication: International Journal of Computer & Software Engineering

• Trained a Python-based machine learning model that helps doctors monitor patient behavior patterns, predict health records, and make early diagnoses. This leads to improved patient care with a 94% accuracy rate.

• Developed the full stack web application using PHP REST API and JavaScript user interface, to serve this model in production.

Education Details:

Master of Science in Information Systems — Illinois State University Jan 2019 - Dec 2020

Bachelor of Engineering in Information Technology — Pune University May 2012 - May 2016

Certification:

AWS Certified Solutions Architect – Associate Amazon Web Services Dec 2025

Certified ScrumMaster (CSM) Scrum Alliance Feb 2020 – Feb 2028

IBM Enterprise Practitioner Certification IBM Sept 2016

JFrog Artifactory Administration and Best Practices In Progress

Contact this candidate