Full-stack Java engineer crafting modern SaaS products, developer tools, and scalable backend systems.
I specialize in building scalable, resilient backend systems and coupling them with modern, cinematic frontend experiences.
With a strong foundation in Java and Spring Boot, I build robust microservices architectures that handle scale gracefully. By pairing this with React and Next.js, I deliver end-to-end solutions that are not only powerful but also visually stunning and incredibly fast.
A curated set of technologies I use to build robust, scalable, and high-performance applications.
Production-ready source code, templates, and architectures designed for scale and performance.
Enterprise-grade AI chat application with RAG, vector search, and long-term memory.
High-throughput real-time event streaming pipeline architecture template.
Production-ready multi-tenant SaaS boilerplate with Stripe billing and RBAC.
Secure, scalable authentication microservice with refresh token rotation.
Real-time stock and crypto trading terminal with WebSocket integration.
Automated deployment workflows for microservices using GitHub Actions and ArgoCD.
I design distributed systems that are fault-tolerant, scalable, and built for enterprise-grade performance.
High-throughput asynchronous communication using Apache Kafka. Events flow from the main application through a shared database into a central event bus, fanning out to independent consumer microservices.
Trusted by founders and engineering teams to build world-class digital products.
"Delivered scalable and clean backend architecture with exceptional communication. The microservices transition was flawless."
CTO, FinTech Startup
"Their full-stack expertise helped us launch our SaaS platform months ahead of schedule. Truly a 10x engineering partner."
Founder, SaaS Client
"An elite developer who deeply understands system design. The event-driven architecture they built handles millions of requests effortlessly."
VP Engineering
From scalable backend systems to modern digital experiences. Ready to launch your next big idea?
I share my knowledge on system design, backend engineering, and the journey of building scalable products.
Deep dives into scalable architecture and distributed systems.
Advanced Spring Boot tutorials and enterprise patterns.
Behind the scenes of building SaaS products as an indie hacker.
Technical articles, system design case studies, and code snippets.
Available for freelance projects and collaborations. Let's build something extraordinary.
hello@devrj369.shop
Location
Remote / Global