SCALING ROBUSTBACKEND ECOSYSTEMS& Dynamic Interfaces
I am MD Salman Chowdhury (SCRAFI). Specialized in high-throughput Django REST architectures, IoT telemetry pipelines, and production React interfaces engineered for enterprise resilience.
Engineered For Scale.
Proven In Production.
Smart Car Parking Monitoring & Alert System
Built to ingest real-time telemetry from over 200 distributed IoT nodes. Features automated alert escalation, deduplication logic, and PostgreSQL indexing calibrated for high-throughput peak loads (500 req/s).
Enterprise Human Resource Management System
Production-grade enterprise HRMS architected with Django, PostgreSQL, and Redis caching. Contains granular modules for payroll accounting, biometric attendance reconciliation, and recruitment pipeline tracking.
HabitFlow — Gamified Habit Engine
A gamified habit-tracking ecosystem engineered to increase personal consistency through streak algorithms, motivational feedback loops, and daily accountability metrics.
Chrome Profile Generator for QA & Testing
Specialized utility engineered to eliminate manual friction during multi-account web application testing and QA by generating unlimited isolated Chrome testing environments in one click.
Architectural Philosophy.
Beyond Syntax & Simple Views.
A software system is only as strong as its foundation. I build with clean architecture, defensive data modeling, resilient caching, and proactive documentation.
Asynchronous Telemetry Ingestion & Deduplication
Engineered for the Smart Parking IoT system. When 200+ edge hardware sensors stream ping events concurrently, requests are sanitized, deduplicated via transient cache hashes, and batch-persisted without blocking the primary event loop.
// Django REST Framework Telemetry Ingestion Endpoint
class TelemetryIngestionView(APIView):
authentication_classes = [TelemetryDeviceAuthentication]
throttle_classes = [HighThroughputThrottle]
def post(self, request):
sensor_id = request.data.get("sensor_id")
hash_key = f"iot:dedup:{sensor_id}:{request.data.get('timestamp')}"
# O(1) deduplication check using Redis cache lock
if not cache.add(hash_key, 1, timeout=5):
return Response({"status": "duplicate_suppressed"}, status=status.HTTP_200_OK)
# Async dispatch for occupancy calculation
calculate_occupancy_delta.delay(sensor_id, request.data.get("state"))
return Response({"status": "acknowledged"}, status=status.HTTP_202_ACCEPTED)The Developer Stack.
Modern, Battle-Tested & Resilient.
Backend & Frameworks
Architecting secure, asynchronous, and high-concurrency API backends.
Data pipelines, telemetry processing, automation
Production HRMS, IoT Smart Parking APIs, RBAC
Microservices and lightweight endpoints
Enterprise client applications at Wolf Vista
Custom plugins, themes, client web solutions
OpenAPI specs, throttling, webhook architectures
Frontend & Interfaces
Building responsive, modern, motion-rich client interfaces.
Interactive dashboards, telemetry monitoring, state management
App Router, SSR, static export for Cloudflare edge
Responsive design systems, micro-interactions, dark modes
Strict typing, ESNext, canvas rendering
GSAP, Lenis, Web Audio API, responsive fluid layouts
Databases & DevOps
High-throughput data storage, memory caching, and containerized deployments.
B-Tree indexing, sub-15ms query execution, telemetry logs
Token session store, deduplication locks, caching
Normalized schemas, transaction integrity
Multi-stage containerization, local dev parity
Server configuration, systemd services, script automation
Branching strategies, code reviews, open-source repos
AI Ecosystem & Media
Leveraging frontier models and generative workflows for exponential productivity.
API integration, structured JSON outputs, multimodal
Architectural synthesis, prompt engineering
Advanced agentic coding, automated system scaffolding
Reasoning models, code generation workflows
AI image & video asset generation
Marketing media, video editing, social design
Experience & Journey.
From Applied AI to Full-Stack Systems.
Full-Stack Web Developer
CURRENT ROLECreative & AI Production → Web Development Intern
PROMOTION PIPELINEFreelance Web Developer
Electrical Engineering & Automation
Based in Savar, Dhaka with global remote flexibility across US, European, and Asian timezones.