Rajat Singh
Kangra
Summary
Experienced Java Software Engineer with over six years of expertise in designing, developing, and maintaining scalable, secure, and high-performance applications using Java, Spring Boot, and cloud technologies. Proven track record in backend API development, microservices architecture, AWS cloud deployments, and team mentorship. Adept at solving complex technical problems, writing clean and testable code, and collaborating cross-functionally to deliver enterprise-grade solutions.
Overview
7
7
years of professional experience
Work History
Senior Consultant
Deloitte USI
Bangalore
10.2021 - Current
- Developed scalable microservices for high-volume insurance platforms using Java and Spring Boot.
- Resolved 20+ critical production issues, improving system uptime and client satisfaction.
- Built APIs to handle millions of monthly transactions, with optimized performance.
- Collaborated with cross-functional teams, including testers, DevOps, and business analysts.
- Mentored junior developers, and led code reviews for quality assurance.
Java Developer
TechTier
Chandigarh
02.2019 - 10.2021
- Enhanced REST APIs and contributed to building modern microservices.
- Automated AWS Lambda deployments reduce manual effort and deployment errors.
- Utilized MongoDB, Redis, and Elasticsearch for scalable data storage and querying.
- Conducted internal training sessions, and mentored new team members.
Education
BE - Computer Science and Engineering
Chitkara University
Baddi, HP01.2018
HSSC -
Noorpur Public School
Nurpur, HP01.2014
Skills
- Java development
- Microservices architecture
- API design
- Cloud deployment
- Spring Boot
- Hibernate
- AWS Lambda
- Docker
- Maven
- CI/CD
- MongoDB
- Redis
- Elasticsearch
- Git
- JUnit
- Postman
- Swagger
- Jenkins
- JavaScript
- Data structures
- Design patterns
- Cross-functional collaboration
- HTML
- MySQL
Languages
- English, full professional proficiency
- Hindi, full professional proficiency
Certifications Awards
- Received 4 'Applause Awards' and 3 'Shout Out Awards' at Deloitte for performance and impact
- Consistently recognized by clients for delivering quality, secure solutions under tight deadlines
Project Highlights
- Insurance Automation Platform: Developed backend APIs for processing insurance policies and claim workflows.
- Patient Management System: Full-stack development for handling patient health records and appointments.
- Online Banking System: Implemented secure user authentication modules and account services.
- Supermarket Billing System: Created a desktop-based Java application for retail invoicing.
Timeline
Senior Consultant
Deloitte USI
10.2021 - Current
Java Developer
TechTier
02.2019 - 10.2021
BE - Computer Science and Engineering
Chitkara University
HSSC -
Noorpur Public School
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