Senior Java Microservices Developer

Mani Shanker

Software Developer

TX, USA +1-940-***-**** ***********.****@*******.*** LinkedIn SUMMARY

● Software Developer with around 4 years of experience delivering enterprise-grade applications in banking, fintech, consulting, and technology domains across the USA and India.

● Specialized in designing and implementing secure, scalable microservices using Java (Core, OOP, Java 8/11+), Spring Boot, Spring Security, Hibernate (JPA), and RESTful APIs, handling high-volume transactional workloads.

● Proficient in relational database design and optimization for PostgreSQL, MySQL, MS SQL Server, and Oracle, integrating caching solutions such as Redis and EhCache to reduce query load by millions annually.

● Skilled in cloud-based deployment and automation using Docker, Kubernetes, and Jenkins CI/CD on AWS, with expertise in monitoring and logging through Splunk, Grafana, and Log4j to maintain application reliability.

● Adept at building responsive front-end interfaces with HTML5, CSS3, and JavaScript (ES6+), while applying Agile (Scrum, TDD) methodologies to accelerate delivery timelines, enhance data processing efficiency, and ensure compliance in regulated environments.

PROFESSIONAL EXPERIENCE

Software Developer JP Morgan Chase & Co. USA Jan 2025 – Current

● Designed secure Spring Boot and Spring Security microservices with OAuth2 authentication, processing over 5M financial transactions daily to support fraud detection and compliance monitoring.

● Streamlined SQL and PL/SQL stored procedures in PostgreSQL and MS SQL Server, reducing batch processing time from 3 hours to 50 minutes for end-of-day settlement reports.

● Directed backend deployments on AWS EC2 using Docker and Jenkins CI/CD, enabling zero-downtime releases across 15 production microservices.

● Devised distributed caching with Redis and EhCache, cutting database query load by 3.2 million queries annually while improving real-time portfolio analytics.

● Enhanced message-driven processing with Apache Kafka and Spring Streams, increasing throughput to 250K market data events per minute for real-time trading dashboards.

● Partnered with cross-functional teams to design a React.js frontend and microservices architecture supporting 7 critical banking applications, ensuring scalability, security, and regulatory compliance in a high-availability environment. Software Developer Uber USA Aug 2024 – Dec 2024

● Architected high-performance Spring Boot microservices with RESTful APIs and OAuth2 security, handling over 3M ride transaction requests daily and enabling secure, low-latency data exchange between rider, driver, and payment systems.

● Refactored SQL and Spring Data JPA queries in MySQL and PostgreSQL, reducing average API response time from 1.5 seconds to 400 milliseconds, improving rider fare calculation speed during peak traffic periods.

● Orchestrated containerized service deployments on AWS EC2 with Docker and Jenkins CI/CD, shortening deployment cycles from 14 days to 5 days and supporting 12 concurrent microservices with zero downtime releases.

● Embedded distributed caching using Redis and EhCache, serving 25K+ concurrent user sessions while reducing database read operations by over 2 million queries annually for Uber’s real-time trip tracking services. Programmer Analyst Cognizant India Jan 2021 – Dec 2022

● Constructed RESTful microservices using Spring Boot, Spring Security, and JWT authentication, enabling secure data exchange for 10+ enterprise applications and cutting integration delays by 45 hours per month.

● Designed and optimized SQL and Spring Data JPA queries for MySQL and PostgreSQL databases, reducing average query response times from 1.2 seconds to 300 milliseconds to improve API throughput for high-volume requests.

● Deployed containerized backend services on AWS EC2 with Docker and Jenkins CI/CD, accelerating release cycles from 14 days to 5 days and improving production stability across 8 microservices.

● Produced dynamic user interfaces in ReactJS with hooks and state management, integrating APIs via Axios to enhance front-end performance and reduce page load times by 2 seconds for 5K+ daily active users.

● Implemented caching strategies with Redis and EhCache, processing over 20K API calls daily while reducing database query volume by 1.5 million queries annually to improve system resilience.

● Led API architecture discussions with business analysts and product managers, aligning microservices and API Gateway designs with client requirements to deliver 6 critical modules ahead of schedule.

● Mentored 3 junior developers on Spring Framework best practices, unit testing with JUnit/Mockito, and secure API design, increasing code review approval rates by 30 additional accepted commits per sprint.

● Collaborated with cross-functional teams to migrate monolithic applications to a microservices architecture on AWS, improving system scalability and enabling concurrent handling of 25% more concurrent user sessions. Software Developer KPMG India Jun 2020 – Dec 2020

● Engineered end-to-end Spring Boot and Hibernate (JPA) microservices for a financial audit platform, processing over 2M transactional records monthly and reducing manual reconciliation time by 120 hours per quarter.

● Developed secure RESTful APIs with OAuth2 authentication and Spring Security, enabling seamless integration across 6 enterprise applications and improving interdepartmental data exchange.

● Optimized SQL and PL/SQL queries in MS SQL Server and PostgreSQL, reducing average report generation time from 90 seconds to 25 seconds for compliance teams.

● Configured AWS EC2-hosted application deployments with Docker and Jenkins CI/CD pipelines, decreasing release cycles from 2 weeks to 5 days and enhancing delivery predictability.

● Integrated application-level caching with Redis and EhCache, handling 15K+ daily API requests while reducing database load by 1.8 million queries annually.

TECHNICAL SKILLS

● Languages: Java (Core, OOP, Collections, Multithreading, Exception Handling), Java 8/11+, SQL, PL/SQL

● Web & APIs: HTML5, CSS3, JavaScript (ES6+), React.js, RESTful APIs, API Gateway, JSON, XML

● Databases: MySQL, MS SQL Server, PostgreSQL, H2, Oracle

● Frameworks: Spring (Core, MVC, JDBC, Boot, Cloud, Security, OAuth2), Hibernate (JPA), Struts, Microservices, Swagger/OpenAPI, Spring Cloud Gateway, Eureka, Redis, EhCache

● DevOps & Cloud: AWS (EC2, S3, Lambda, ECS), Docker, Kubernetes, Jenkins, CI/CD

● Monitoring & Messaging: Splunk, Log4j, Grafana, WebLogic Server, Apache Kafka, Apache Streams

● Version Control & Testing: Git, GitHub, JUnit, Mockito

● Tools: Maven, Postman, Spring Circuit Breaker

● Methodologies: Agile (Scrum, TDD)

● IDEs/OS: Eclipse, STS, Visual Studio, VS Code, Linux, Windows EDUCATION

Southern Arkansas University USA Jul 2023 – Dec 2024 Master’s in Computer and Information Science

Anurag Group of Institutions India Aug 2016 – Jun 2020 Bachelor’s in Information Technology

CERTIFICATIONS

● Oracle Certified – Java Fundamentals

● MySQL Certification – Indian Institute of Technology (IIT), India

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