Backend Developer Building Scalable Systems, APIs, & SaaS Platforms
Engineering robust backend architectures, dynamic schema models, and database workloads that power real businesses.
System Uptime
API Latency Target
REST APIs Delivered
Jobs Processed
High-Performance System Architecture
I prioritize database scalability, concurrency controls, and secure isolation patterns so that software handles traffic spikes gracefully and performs consistently.
Scalable Microservices
Designing modular Express systems decoupled using Redis queues. Decoupling computational tasks from the HTTP thread.
Advanced Database Design
Writing optimized SQL indexing strategies and MongoDB pipelines. Designing schemas with clean connection pools and tenancy bounds.
API Versioning & Specs
Documenting clean, rate-limited REST resources validated with strict schema controls (Zod) and encrypted authorization logic.
Our Engineering Stack
Leveraging modern technologies to write dry, maintainable, and robust system code.
Node.js
ExpertEvent-driven, asynchronous runtime for scalable network systems.
Express.js
ExpertFast, unopinionated, minimalist web framework for RESTful APIs.
TypeScript
ExpertStatically typed superset of JavaScript ensuring compile-time safety.
REST API Design
ExpertBuilding semantic, versioned, rate-limited, and scalable API structures.
Featured Implementations
Showcasing case studies of systems architected from initial design to live production deployment.
ROI Spectrum
The Problem: SEO agencies and website owners lacked an integrated, multi-tenant solution to track ROI, audit logs, service tracking, and automated subscription billing transparently.
Forklift CRM
The Problem: Operations managers struggled to handle lead assignments, track workflow automations, and manage sales representatives with clean role-based permissions.
Production Commit Activity
A timeline showing consistency and continuous code deployment pipelines.
Open Source Activity
Simulating daily commit pushes, branches, and code reviews
Professional Endorsements
Here is what engineering managers and directors say about collaborating with me.
"Bablu took full ownership of the ROI Spectrum platform. He designed database schemas and structured Stripe webhooks flawlessly, ensuring that client transactions were parsed without a single failure."
"The CRM lead assignment flows built by Bablu were real-time, robust, and secured using bitwise access control permissions. His deep understanding of Node.js concurrency is exceptional."
Ready to Build a High-Performance System?
Let's discuss how we can secure your APIs, optimize database operations, or build a resilient SaaS architecture.