Software Developer — Scalable Backends, Mobile & Web, AI Integrations
I'm Sumit Rai, a software developer focused on building scalable backend systems and high-quality mobile/web apps. I work with Java 8+, Spring Boot, Kafka, Redis, and modern JavaScript stacks, and integrate AI to deliver practical, production-ready features. I care about clean architecture, system reliability, and developer experience.
Tech Stack
About Me
I'm passionate about building systems that scale. My philosophy centers on clean architecture, thorough testing, and monitoring—because production reliability matters. I believe in writing code that's not just functional, but maintainable and a joy to work with.
Whether it's designing event-driven microservices, optimizing database queries, or crafting responsive mobile interfaces, I approach each challenge with the same rigor: understand the problem deeply, design thoughtfully, and deliver with confidence.
Education
Master of Computer Applications
CGPA: 8.45
(Institution and year to be added)
Current Focus
Open-source contributions and freelance work since January 2025
Key Strengths
Experience
Intern
Deltecs Pvt Ltd
- •Contributed to backend/API features using Java and Spring Boot
- •Collaborated on microservice architecture and design patterns
- •Wrote optimized SQL and MongoDB queries for data operations
- •Containerized application components using Docker
- •Gained exposure to CI/CD pipelines and deployment workflows
Software developer Intern
Care Chain-AI
- •Worked on backend scalability and API design using Spring Boot and Redis
- •Delivering responsive web applications using React
- •Integrating AI services into Spring Boot microservices
- •Setting up Dockerized microservices architectures with Apache Kafka
- •Managing container orchestration and deployments using Kubernetes
Open Source & Freelance
Self-Employed
- •Consulting on backend scalability and API design
- •Delivering React Native mobile applications
- •Integrating AI services into client projects
- •Setting up Dockerized microservices architectures
- •Managing cloud deployments on AWS Lightsail
Featured Projects
SpendMate
SpendMate
Personal finance tracker with microservice architecture and AI-assisted categorization
Ecomzy
Study Notion
Services
Software Development
Scalable backend systems and high-performance APIs
- ✓Backend systems (Java 8+, Spring Boot, Microservices)
- ✓API design (REST, GraphQL)
- ✓Database modeling (SQL/MongoDB)
- ✓Event-driven architectures (Kafka)
- ✓Caching solutions (Redis)
- ✓Containerization (Docker)
- ✓Cloud deployment (AWS Lightsail)
AI Integrations
Practical AI features for production applications
- ✓Embeddings and semantic search
- ✓Text processing and NLP
- ✓Feature automation
- ✓Integration with AI providers
- ✓Cost and latency optimization
- ✓Prompt engineering
- ✓Model fine-tuning consultation
API Management
Robust, secure, and well-documented APIs
- ✓Rate limiting and throttling
- ✓Authentication & authorization
- ✓Monitoring and logging
- ✓API versioning
- ✓Comprehensive documentation
- ✓Developer onboarding
- ✓Performance optimization
Mobile & Web Apps
Responsive, performant user experiences
- ✓React Native mobile apps
- ✓MERN web applications
- ✓Performance-first UIs
- ✓State management (Redux Toolkit, Zustand)
- ✓Responsive design
- ✓Accessibility compliance
- ✓Cross-platform testing
Get In Touch
Have a project in mind? Let's discuss how I can help bring your ideas to life.
Contact Information
Personal Motto
"sumit rai learner"