ElsaJAVA 21 · SPRING BOOT · GENAI
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Seeking Roles in India, Germany & Dubai

Elsa Baby —
engineering scalable
Java backends & AI platforms.

Software Engineer (Developer II) at UST · 3.8+ Yrs · Java 21

3.8+ years designing, developing, testing, deploying, and maintaining enterprise applications at UST. Specializing in Spring Boot microservices, high-volume PostgreSQL query optimization, REST APIs, and production LLM integration (OpenAI, Gemini, Groq, RAG).

Let's build something LinkedIn Profile Explore Key Solutions
Open to India · Germany · Dubai
3.8+ Yrs Enterprise Java
Spring Boot 3 & Microservices
OpenAI, Gemini & RAG
system_metrics.log
3.8+ YrsEnterprise Experience
Java 21Spring Boot Microservices
PostgreSQLStored Procs & Query Tuning
LLM APIsOpenAI, Gemini, RAG
Core Java · JVM ArchitectureJava 8 / 11 / 17 / 21
Spring Boot · Spring Security · JPABoot 3
REST APIs · React.js · AngularFull-Stack
LLM Integration · RAG · Claude AIGenAI & Coding Agents
Engineering Profile

Backend-led full-stack execution & AI integration.

I am a Software Engineering Developer II at UST with 3.8+ years of hands-on experience architecting, building, and deploying mission-critical backend microservices and full-stack solutions.

My primary expertise centers around Java 21, Spring Framework, Spring Boot, Spring Data JPA/Hibernate, Spring Security, RESTful API Design, and Microservices Architecture. On the frontend, I lead backend integrations for React.js and Angular applications.

In my recent work on high-volume financial platforms and enterprise applications, I have focused heavily on PostgreSQL query optimization, stored functions, indexing, and concurrency handling to maintain strict transaction integrity.

Additionally, I bring deep practical experience in Generative AI & LLM Integration — embedding OpenAI APIs, Gemini, Groq, spaCy NER, and RAG pipelines into production backends, while leveraging Claude AI coding agents to accelerate engineering velocity.

01

Java & Microservices Architecture

Java 8/11/17/21, Spring Boot, Spring Data JPA, Hibernate, Spring Security, REST APIs, Microservices, Concurrency, Maven.

02

Frontend Integration & Frameworks

React.js, Angular, JavaScript (ES6+), HTML5, CSS, Python Flask, FastAPI, Swagger/OpenAPI documentation.

03

High-Volume Database Optimization

PostgreSQL, MySQL, MongoDB schema design, query plan tuning, stored functions, indexes, transaction integrity.

04

AI / LLM Integration & AgentsEdge

OpenAI APIs, Gemini, Groq, Prompt Engineering, spaCy NER, RAG, ChromaDB vector search, Claude AI coding agents.

Enterprise Systems & Projects

Production systems that scale.

Java 21 microservices, high-throughput financial architectures, and AI-powered intelligence platforms.

UST Enterprise · Java Full StackJuly 2024 – Present

AI-Powered Trading Platform

Scope & Architecture

Engineered scalable Java Full Stack financial applications using Java 21, Spring Boot, REST APIs, Angular, and Microservices Architecture at UST.

Key Engineering Contributions

Migrated core Trading Manager module from legacy Core Java to Spring Boot REST services for B2B partner integration. Built microservices for trade lifecycle execution, reconciliation, dividend processing, stop-loss automation, and tenure validation.

Optimized PostgreSQL queries, stored functions, and indexes to boost throughput in high-volume financial transactions. Leveraged Claude AI coding agents to accelerate development.
Java 21Spring BootAngularPostgreSQLMicroservicesClaude AI
Personal Project · AI Platform2026 – Ongoing

ArchitectAI — Software Engineering Intelligence

Scope & Architecture

Production-grade platform enabling developers to analyze, review, and explain enterprise codebases using AI agents and semantic search.

Key Engineering Contributions

Architected a Spring Boot backend (Spring Security, JPA/Hibernate, REST APIs) integrated with a Python FastAPI AI microservice and ChromaDB vector embeddings. Built AI agents powered by Gemini and Groq for codebase Q&A, security audits, and design review.

Follows clean architecture with Docker deployment, automated testing, structured API documentation, and RAG semantic vector search.
Spring BootFastAPIChromaDBGeminiGroqRAGDocker
Personal Project · Full Stack + AI2026

AI-Powered Resume Parser System

Scope & Architecture

Microservices-based resume parsing solution separating concerns between a Java Spring Boot backend and a Python AI extraction service.

Key Engineering Contributions

Integrated OpenAI LLM APIs with structured prompt engineering and JSON schema-constrained outputs. Implemented automatic fallback to spaCy Named Entity Recognition (NER) and regex pattern matching for high availability.

Implemented Spring Data JPA, global exception handling, Swagger/OpenAPI docs, and containerized both microservices with Docker & Docker Compose.
Spring BootPython FastAPIOpenAI APIspaCy NERDocker ComposeOpenAPI
UST Enterprise · AI / BackendDec 2022 – July 2024

AI-Powered Enterprise Chatbot

Scope & Architecture

Developed backend RESTful APIs for AI-driven conversational chatbot applications supporting enterprise workflows.

Key Engineering Contributions

Built backend services using Python Flask and REST architecture. Integrated OpenAI LLM APIs for model execution and collaborated closely with frontend engineers for seamless React.js integration.

Optimized backend validation and PostgreSQL schema performance to handle growing application traffic under Agile/Scrum delivery.
Python FlaskOpenAI APIsReact.jsPostgreSQLREST APIs
Key System Solutions

Core architectural achievements.

Real-world enterprise solutions delivered across Java 21, Spring Boot microservices, database performance tuning, and AI engineering.

Core Java to Spring Boot B2B Integration

Migrated core Trading Manager module covering primary trading operations from legacy Core Java to Spring Boot RESTful microservices architecture at UST.

Enabled secure RESTful B2B integration capabilities for external business partners with zero service downtime.
Java 21Spring BootREST APIsB2B Integration

Financial Trade Lifecycle Microservices Engine

Architected microservices handling order execution, trade reconciliation, dividend processing, stop-loss automation, and investment tenure validation.

Maintained strict financial calculation accuracy and transaction integrity under high-volume traffic.
Spring BootMicroservicesFinancial EngineConcurrency

High-Volume PostgreSQL Performance Optimization

Tuned complex database queries, authored custom stored functions, and designed indexing strategies for high-frequency financial calculations.

Cut query response time by ~80% (down to ~200ms) and boosted throughput for 50,000+ active users.
PostgreSQLStored FunctionsIndex Strategy80% Latency Cut

Enterprise AI & LLM Microservices Integration

Integrated OpenAI APIs, Gemini, Groq, and spaCy NER fallbacks into production backends, supported by Claude AI coding agents for accelerated delivery.

Reduced document processing turnaround by 70% with structured JSON schema constraints.
Python FastAPI/FlaskOpenAI APIsspaCy NERClaude AI
Technical Skillset

Technical depth & core competencies.

3.8+ years of enterprise software engineering experience at UST Trivandrum.

Core Java & Backend

Primary Focus
Java (8, 11, 17, 21)Expert
Spring Boot & Spring SecurityExpert
Microservices & REST APIsExpert
Spring Data JPA / HibernateExpert
Concurrency & SDLCAdvanced

Frontend & Frameworks

Full Stack
React.jsProficient
AngularProficient
JavaScript (ES6+) / HTML5 / CSSFluent
Python (Flask & FastAPI)Proficient

Databases & DevOps

Infrastructure
PostgreSQL (Tuning & Functions)Expert
MySQL & MongoDBProficient
Docker & Docker ComposeAdvanced
Git / Maven / Jenkins / AzureProficient

AI & ML IntegrationEdge

LLM & Agents
OpenAI APIs & LLMsProduction
Gemini & Groq ModelsAdvanced
RAG & ChromaDB Vector SearchActive
Claude AI Coding Agents & NERAdvanced

Bachelor of Technology (B.Tech) — Computer Science & Engineering

APJ Abdul Kalam Technological University · Core Software Engineering & Computer Science Foundation

Java 21Spring BootMicroservicesPostgreSQL TuningLLM IntegrationsClaude AI
Professional Track

Proven impact in enterprise engineering.

3.8+ years of backend microservices engineering, database optimization, and promotion at UST.

Developer II — Software Engineering (Java Full Stack)July 2024 – Present
UST · Trivandrum, Kerala, India · Promoted for engineering excellence
  • Designed, developed, tested, deployed, and maintained scalable Java Full Stack enterprise applications using Java 21, Spring Framework, Spring Boot, REST APIs, Angular, and Microservices Architecture.
  • Migrated core Trading Manager module from Core Java to Spring Boot RESTful microservices, opening secure B2B integration capabilities for business partners.
  • Implemented complete financial trade lifecycle microservices including order execution, reconciliation, dividend processing, stop-loss automation, and investment tenure validation.
  • Troubleshot complex production issues affecting transaction integrity and optimized PostgreSQL queries, stored functions, and indexes for high-volume systems.
  • Leveraged AI-powered development tools including Claude AI coding agents to accelerate full-stack delivery and code reviews.
Java 21Spring BootSpring SecurityPostgreSQL TuningAngularMicroservicesClaude AI
Developer I — Software Engineering (Java / Python Full Stack)Dec 2022 – July 2024
UST · Trivandrum, Kerala, India · 1 yr 8 mo
  • Developed backend RESTful APIs using Python Flask and REST architecture for enterprise AI-driven chatbot applications.
  • Architected AI-powered solutions integrating OpenAI APIs and Large Language Models (LLMs) for automated execution and backend workflows.
  • Integrated backend services with PostgreSQL databases and partnered closely with frontend developers for seamless React.js integration.
  • Participated actively in Agile ceremonies (sprint planning, code reviews, production support) in cross-functional teams.
Python FlaskOpenAI APIsReact.jsPostgreSQLREST APIsAgile/Scrum
Get In Touch

Let's build reliable enterprise backends.

I am actively seeking Backend Developer (Java/Spring Boot) and Senior Java Full-Stack Developer positions. Whether you need high-throughput microservices, database performance optimization, or Generative AI backend integrations — let's connect.

Email address
elsababy14@gmail.com
LinkedIn profile
linkedin.com/in/elsa-baby-003862223
Send Direct Email
AvailableOpen to roles
  • Backend Developer (Java/Spring Boot)
  • Senior Java Full-Stack Developer
  • GenAI & RAG Backend Integration Engineer
  • Roles in India, Germany & Dubai (Relocation / Remote)
  • LocationsIndia · Germany · Dubai
  • CompanyUST (Developer II)
  • Experience3.8+ Years
  • EducationB.Tech in Computer Science
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