Senior Full Stack Developer with Java & Microservices Expertise

KOKILA VISWANATHAN

Senior Full Stack Developer Java Spring Boot Microservices AngularJS +91-962******* ************@*****.*** Chennai, India

PROFESSIONAL SUMMARY

Senior Full Stack Developer with 10 years of experience designing and developing scalable enterprise applications using Java, Spring Boot, Microservices, and front-end technologies. Strong expertise in REST API design, transaction management, database optimization, UI integration, and backend component architecture. Experienced in performance tuning, query optimization, CI/CD pipelines, and cross-functional collaboration in Agile environments.

CORE COMPETENCIES

Backend & Frameworks: Java 8/11, Spring Boot, Spring MVC, Microservices, REST APIs, Hibernate

Databases: Oracle, PostgreSQL, SQL Tuning, Execution Plan Analysis, Basic MongoDB

Cloud & DevOps: AWS (EC2, S3, SQS – foundational), Maven, Jenkins, CI/CD

Architecture & Concepts: Transaction Management, Idempotent API Design, Thread Pools, Connection Pooling (HikariCP), Caching Strategies (basic), Design Patterns (Factory, Singleton, Strategy)

Testing & Tools: JUnit, Postman, Git, Bitbucket, SVN, IntelliJ, Eclipse

Frontend (Working Knowledge): HTML, JavaScript, jQuery, AngularJS

PROFESSIONAL EXPERIENCE

Version 1 – Bangalore

Senior Java Developer Dec 2021 – Present

Designed and developed backend microservices for clinical supply forecasting platform serving global clients.

Optimized complex Oracle queries and indexing strategies to significantly improve computation response time.

Enhanced demand calculation and depot mapping logic, reducing supply planning discrepancies.

Diagnosed and resolved critical backend performance bottlenecks and data inconsistencies through deep code and database analysis.

Analyzed SQL execution plans and refactored inefficient queries to improve throughput and reduce DB load.

Enhanced logging and observability mechanisms to improve system reliability and stability.

Participated in code reviews, improving maintainability and reducing defect leakage.

Automated build processes using Maven and streamlined deployment workflows.

Key Project: SupplyWise – Clinical Forecasting & Materials Management (Healthcare / Clinical Supply Chain Domain) Client: ALMAC

Built forecasting modules to predict clinical trial supply demand.

Improved backend transaction handling to maintain inventory consistency.

Collaborated with QA and business teams to resolve high-impact production issues.

Aspire Systems – Chennai

Module Lead Sep 2019 – Dec 2021

Developed tax document processing workflows and REST APIs using Spring Boot.

Implemented PDF generation and approval workflows for compliance-driven banking systems.

Delivered production fixes and ensured minimal system disruption.

Collaborated with domain SMEs to refine business logic and improve release quality.

Project: Tax Payment System (Banking & Financial Services Domain) Client: Standard Chartered GBS

Designed backend services for tax summary generation and document upload.

Improved workflow reliability and reduced manual intervention.

Naethra Technologies – Chennai (IT Service Management Domain)

Software Programmer Feb 2018 – Aug 2019

Developed helpdesk ticketing module using Java, JSP, and PostgreSQL within the IT Service Management domain.

Implemented automated ticket assignment rules reducing manual routing effort.

Designed role-based access control mechanisms.

Thinksynq Solutions – Chennai (Enterprise HR Domain)

Developer Engineer Feb 2016 – Jan 2018

Developed HRMS modules including payroll, attendance, recruitment, and performance workflows within the Enterprise HR Domain.

Implemented backend persistence using Spring MVC and Hibernate.

Built reusable workflow components reducing configuration effort.

EDUCATION

B.E – Computer Science Engineering

Arulmigu Meenakshi Amman College of Engineering, Kanchipuram (2015)

STRENGTHS

Strong debugging and analytical skills

Backend performance optimization

Clear communication with cross-functional teams

Agile/Scrum methodology experience

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