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HANUMAN KUMAR SINGH

HANUMAN KUMAR SINGH

Java Spring Boot Developer

Jamshedpur, India 3+ yrs exp 93 ยท Outstanding

About

Java Spring Boot Developer with 3+ years building scalable microservices, event-driven architectures, and cloud-native REST APIs for enterprise SaaS and IoT platforms; now expanding into applied AI Engineering with Spring AI, Retrieval-Augmented Generation (RAG), and LLM integration. Expert in Spring Boot, Spring Security, Spring Data JPA, Hibernate, Kafka, and RabbitMQ, with systems handling 50,000+ daily transactions and 1,000+ IoT device integrations. Hands-on with OpenAI, AWS Bedrock, and MCP for RAG pipelines, vector embeddings, AI agent tool-calling, and AI observability. Proficient in Docker, Kubernetes, AWS, and CI/CD. Full SDLC ownership in high-velocity Agile environments.

Skills & Expertise (71)

Spring Boot Advanced
8.1/10
4
Years Exp
REST APIs Advanced
8.0/10
4
Years Exp
Java 8+ Advanced
7.8/10
4
Years Exp
Docker Advanced
7.5/10
4
Years Exp
Kubernetes Advanced
7.5/10
4
Years Exp
Microservices Advanced
7.5/10
4
Years Exp
SQL Advanced
7.0/10
4
Years Exp
JavaScript Intermediate
6.5/10
4
Years Exp
Typescript Intermediate
6.0/10
2
Years Exp
Python Intermediate
5.5/10
2
Years Exp
JUnit 5 API Gateway Saga CQRS JWT OAuth2 REST Assured TestContainers Mockito SOLID LINUX GitHub Actions Jenkins Helm Scrum Postman Angular React.js REDUX HTML5 CSS3 Flutter Git Maven Agile Gradle Swagger Openapi Prometheus Grafana Tool Calling Dart Spring MVC Spring Security Spring Data JPA Hibernate Spring Cloud Node.js Express.js Spring AI RAG OpenAI API Model Context Protocol Prompt Engineering Embeddings AI Agents AWS CloudFormation AI evaluators Apache Kafka RabbitMQ AWS SQS AWS SNS MySql Postgresql MongoDb Redis AWS EC2 AWS S3 AWS RDS AWS Lambda AWS CloudWatch

Work Experience

Software Developer

Smartly Built

Feb 2024 - Apr 2026

Engineered Spring Boot REST APIs (Spring Data JPA, Hibernate, Spring Security RBAC) for JackTrade CRM (500+ screens, 15+ tenants); cut API response time 35% via query optimization and multi-tenant data isolation. Integrated Kafka for real-time IoT event streaming and RabbitMQ for async processing on Greyter Water Systems; added Redis caching, cutting latency ~40% across 50,000+ daily device requests. Automated CI/CD with Jenkins, Docker, and Kubernetes on AWS; deployed Prometheus/Grafana/CloudWatch observability, achieving 99.9% uptime. Prototyped Spring AI (OpenAI, RAG, MCP) integrations for AI-assisted features.

Software Developer

Indoc Web Solutions Pvt Ltd

Mar 2023 - Jan 2024

Developed Spring Boot RESTful APIs (Spring Data JPA, MySQL/PostgreSQL) for mobile backends; tuned Hibernate queries and DB indexes, cutting response time ~30%. Shipped 3 production Flutter apps (iOS & Android) with Provider/BLoC state, Firebase, and third-party SDKs, achieving <0.5% crash rate.

Software Developer

Mindful Machines Pvt Ltd

Apr 2022 - Feb 2023

Built Spring Boot RESTful APIs and Node.js services for Urban Kirana & Near Bajar; optimized JPA/Hibernate queries and MongoDB aggregations for 50,000+ daily active users. Contributed to distributed system design and Agile workflows; delivered 100% of assigned features on schedule across concurrent projects.

Education

B.Tech, Computer Science & Engineering - University of Engineering and Management, Jaipur

2019 - 2023 ยท Afghanistan

Certifications

From Java Dev to AI Engineer: Spring AI Fast Track

Udemy ยท 2026

Cloud Computing & DevOps

Intellipaat ยท 2023

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Profile Score Breakdown

๐Ÿ“ท Photo 10/10
๐Ÿ“„ Resume 10/10
๐Ÿ’ผ Job Title 10/10
โœ๏ธ Bio 10/10
๐Ÿ› ๏ธ Skills 20/20
๐ŸŽ“ Education 10/10
โฑ๏ธ Experience 13/15
๐Ÿ’ฐ Rate 0/5
๐Ÿ† Certs 5/5
โœ… Verified 5/5
Total Score 93/100

Profile Overview

Member sinceSep 2026

Availability Details

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