IoT Based Access Control Solution & Meal Booking App

• Access control, attendance, and meal operations were disconnected and manually reconciled. • Built a unified IoT and enterprise platform across biometric devices, identity, and payroll workflows. • Improved security control, attendance integrity, and finance-aligned operations.

Executive Snapshot

RoleSystems Architect & Lead Fullstack Engineer

Duration6 Months

Team3 Engineers

Cloud & Hosting:AWS EC2Microsoft Azure Serverless FunctionsAmazon S3|

CI/CD & Infra:GitHub ActionsDocker|

Backend:Node.js (Webhooks & APIs)PHP (Core Engine).NET (External Integration)|

Frontend:TypeScript|

UI:Bootstrap|

Databases:MySQL (Transactional Data)MongoDB (Raw Logging & Telemetry)|

Security:Cloudflare Turnstile|

Processing high-volume biometric IoT events across hybrid infrastructure with distributed RBAC enforcement and transaction-safe multi-system synchronization.

Features at a Glance

Problems It Solved

Business Impacts

Engineering Challenges

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Note: This is a conceptual representation of an enterprise revenue governance platform. All branding, data, and identifiers have been modified for confidentiality purposes.

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Dip Chakraborty

IoT Based Access Control Solution & Meal Booking App

Executive Snapshot

Features at a Glance

Access Control & IoT Layer

Authentication & Identity Management

Meal Ordering & Supply Management

Attendance, Payroll & Finance Integration

Administration, Governance & Security

Reporting, Analytics & System Monitoring

Problems It Solved

Fragmented Access Infrastructure

Disconnected Operational Workflows

Manual Payroll Reconciliation

Lack of Centralized Governance

Business Impacts

Access Control Reliability & Security

Identity & Attendance Automation

Operational Efficiency & Workflow Integration

Financial Accuracy & Payroll Alignment

System Stability & Network Resilience

Visibility, Auditability & Compliance

Engineering Challenges

IoT Device Integration

Secure Gateway & Network Isolation

Identity Synchronization & Mapping

Distributed Authorization Enforcement

High-Volume Real-Time Event Processing

Financial Transaction Integrity

Restricted Network & Deployment Environments

System Observability & Fault Diagnosis

Gallery

Project Screenshots

LLM-Integrated Conversational AI Platform with RAG Architecture