Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get your monolithic Java app modernized into microservices

Kayalvizhi S.Status: Offline
Kayalvizhi S.
Preview image

Let a pro handle the details

Buy Other Web Programming services from Kayalvizhi, priced and ready to go.
Kayalvizhi S.Status: Offline
Kayalvizhi S.
Preview image

Let a pro handle the details

Buy Other Web Programming services from Kayalvizhi, priced and ready to go.

Project details

Modernize your legacy Java application with a scalable Spring Boot microservices architecture. I provide implementation-ready migration strategies, service decomposition, API design, and cloud-native architecture to reduce technical debt and accelerate future development.
Web Programming Project
API Development, API Integration, Data Dashboard
Programming Languages
Python, Java, Go
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$199
Standard
$499
Advanced
$799
Delivery Time 5 days 9 days 12 days
Number of Revisions
123
Source Code
-
-
Kayalvizhi S.Status: Offline

About Kayalvizhi

Kayalvizhi S.Status: Offline
Java/Cloud Architect|Spring Boot|Microservices|Kafka|REST APIs|AI
Chennai, India - 3:46 am local time
17+ years architecting large-scale, secure, high-performance backend systems for healthcare, fintech, and financial-services clients across the US, UK, and Gulf markets. I lead solution architecture and cloud migration end-to-end — from architecture governance through to production delivery.

Recent results:
- Reduced API latency 40% with Spring WebFlux microservices + vector databases(FAISS/OpenSearch)
- Cut production incidents 35% via self-healing Agentic AI integrated with Istio service mesh
- Delivered 99.99% uptime on a multi-cloud (AWS + Azure) healthcare platform with 100% SOC2/GDPR compliance
- Reduced attack surface 80% with a custom Java Zero Trust WAF (mTLS, OAuth2, OWASP Top 10)
- Transformed legacy IBM BPM into Kafka-driven microservices — 21% throughput gain, 18% cost reduction
- Enabled 50% faster vendor onboarding via a modular API platform (28+ fintech integrations)

Core stack: Java (8-21), Spring Boot/Cloud/WebFlux, Microservices, Kafka, REST/GraphQL/gRPC, AWS (EKS, Lambda, Bedrock, API Gateway), Azure (AKS, APIM), Kubernetes, Terraform, Docker

Currently specializing in Agentic AI and LLM integration (RAG/GraphRAG, LangChain4j, AWS Bedrock) — building intelligent automation and self-healing enterprise platforms.

AWS Certified Solutions Architect (Associate; Professional in progress). Comfortable as a client-facing architect across distributed, multicultural teams.

I can help you with:
- Solution architecture and cloud migration (AWS/Azure)
- Spring Boot microservices and event-driven architecture
- Agentic AI / LLM integration and RAG pipelines
- API strategy, governance, and secure design
- Legacy modernization (monolith → microservices)
- Zero Trust security architecture
- Technical leadership, architecture reviews, and mentoring

Let's talk about what you're building.

Steps for completing your project

After purchasing the project, send requirements so Kayalvizhi can start the project.

Delivery time starts when Kayalvizhi receives requirements from you.

Kayalvizhi works on your project following the steps below.

Revisions may occur after the delivery date.

Assess the Existing Application

Review your current application architecture, business requirements, technology stack, and modernization goals to understand the migration scope.

Define the Modernization Strategy

Identify service boundaries, migration approach, API strategy, database considerations, and cloud architecture for a phased transition.

Review the work, release payment, and leave feedback to Kayalvizhi.