Available  ·  Wiesloch, Germany

Balaji Murugesan

Senior Java & AI Engineer

I design and build cloud-native enterprise systems — from event-driven Kafka pipelines and OData REST APIs to production RAG pipelines, LLM agents, and agentic AI workflows. 11+ years shipping at scale across Germany and India.

LangChain4j RAG / LLM Agentic AI Java 17/21 Spring Boot Apache Kafka Cloud Foundry AWS Docker · K8s
Get in Touch LinkedIn Portfolio
Balaji Vengatesh Murugesan
11+
Years
12+
Clients
4
Companies
balajimurugesan.2016@gmail.com
github.com/BalajiPortfolioProjects
01
About Me
Building intelligent systems

I'm a Senior Java & Full-Stack Engineer currently at SAP SE in Walldorf, Germany, where I work on a large-scale cloud platform — contributing to both classical microservice engineering and modern AI-native patterns.

Over 11+ years I've moved from building OData REST APIs and Spring Boot services at SAP Labs, to architecting integration platforms connecting global ERPs, to leading teams that ship AI-first features using LangChain4j, RAG pipelines, vector databases, and autonomous agentic workflows.

I care about clean architecture, developer experience, and the intersection of intelligent systems with genuine business value. I'm fluent in English, advancing in German (B1/B2), and actively exploring senior architect opportunities in the German enterprise market.

🧠
AI-First
RAG, LLM Agents, Agentic Workflows
☁️
Cloud Native
Cloud Foundry · AWS · BTP · Kubernetes
⚡
Event Driven
Kafka · ActiveMQ · Microservices
🚀
1,000+ Users
Products shipped to enterprise clients
02
Work History
Where I've worked
Dec 2024 – Present
SAP SE
Walldorf, Germany
Senior Software Developer — Java & AI Platform Engineering
LangChain4jRAG PipelinesML Anomaly Detection JavaSpring BootKafkaODataCloud Foundry
  • Built LangChain4j-based AI agents implementing RAG pipelines over enterprise knowledge bases, reducing mean time to insight for operations teams.
  • Integrated ML-based anomaly detection into platform telemetry pipelines, surfacing proactive alerts and improving system observability.
  • Designed event-driven microservice features with Spring Boot and Kafka for real-time processing across platform services.
  • Engineered OData REST APIs using the CAP Java model with filtering, expansion, and batch support at scale.
  • Contributed to API-first architecture reviews and service decomposition standards; deployed via Jenkins CI/CD with blue-green releases.
May 2023 – Nov 2024
p36 GmbH
Bad Hersfeld, Germany
Senior Software Engineer — Platform & Integration R&D
JavaSpring BootActiveMQAWS EC2Cloud FoundryNode.js
  • Led full migration of a large-scale compliance platform from Java Servlet / Neo to Spring Boot microservices on Cloud Foundry.
  • Implemented JWT-based OAuth2 authentication (User Principal, Tenant Principal) replacing brittle servlet-filter security.
  • Built event-driven submission interfaces using ActiveMQ on AWS EC2, decoupling regulatory producers from consumers.
  • Managed product delivery for 12 enterprise customers and 1,000+ active users, leading a senior engineering team.
May 2022 – May 2023
Zumen Inc
Chennai, India
Java Integration Architect
Spring BootSpring Cloud GatewayEurekaProject ReactorReactAWS
  • Designed reactive microservices integration platform connecting to ERP/PLM systems (S/4HANA, Oracle JD Edwards, Windchill) using Spring Boot and Project Reactor.
  • Built Spring Cloud Gateway providing unified entry with routing, rate limiting, and JWT enforcement across all microservices.
  • Integrated payment providers (Zoho Books, Razorpay, PayPal) supporting end-to-end Procure-to-Pay workflows.
  • Advised CEO and CTO on integration roadmap; reduced deployment lead time ~60% via Jenkins CI/CD on AWS.
Jun 2017 – May 2022
SAP Labs
Bengaluru, India
Software Developer — Cloud Platform Engineering
JavaSpring BootNode.jsODataAWSCloud Foundry
  • Developed Java and Node.js reference applications on Cloud Foundry used by the global developer community at developers.sap.com.
  • Built a data integration interface enabling near-real-time reporting pipelines over OData-based ERP data streams.
  • Designed CDS-based OData services and APIs; published technical community articles driving global developer adoption.
Nov 2014 – May 2017
TCS Limited
India
Systems Engineer — Enterprise Solutions
JavaODataREST APIsAWS
  • Developed OData services modelling retail business processes for enterprise clients including M&S and Microsoft.
  • Built frontend applications consuming OData services, delivering UIs for supply chain and retail operations.
03
Technical Stack
What I build with
🤖
AI / LLM / Agentic
LangChain4jRAG PipelinesAgentic AI LLM IntegrationVector DatabasesEmbeddings Prompt EngineeringLangSmithML Anomaly Detection
☕
Backend / Java
Java 17/21Spring BootSpring Cloud Gateway Project ReactorEurekaOData REST APIs Hibernate / JPACAP JavagRPC
⚡
Event Streaming
Apache KafkaActiveMQ Event-Driven ArchitectureCQRSSaga Patterns
☁️
Cloud & DevOps
Cloud FoundryAWSDocker KubernetesJenkinsGitHub Actions CI/CD PipelinesHelm
🖥️
Frontend
React JSSAP UI5Node.js TypeScriptHTML5 / CSS3Fiori Elements
🗄️
Data & Architecture
SAP HANAPostgreSQLPostGIS pgvectorMongoDBMicroservices DDDAPI-First12-Factor
04
Education & Credentials
Academic foundation
M.Tech — Information Technology
SRM University, India
Sep 2012 – Jul 2014
Software development · Information systems · Databases · Web technologies · Software architecture
B.Tech — Electronics & Communications
Anna University, India
Sep 2008 – Sep 2012
Microelectronics · Signal Processing · Microcontrollers · Digital Communication
🏅 JSNSD Certified
OpenJS Node.js Services Developer
OpenJS Foundation
Node.js microservices · REST API development · Cloud-native service patterns
✍️ Technical Author
Community Platform Publications
2017 – 2022
Published articles on cloud-native integration, BTP services, and AI agent architecture for global developer communities.
Languages
🇬🇧
English
Fluent
🇩🇪
German
B1/B2 Advanced
🇮🇳
Tamil
Native