Senior PHP Laravel Backend Lead

ARGHADEEP HALDER

Senior Software Engineer Backend Developer

**********@*****.*** +91-738******* Kolkata, West Bengal - 743331 PROFESSIONAL SUMMARY

Results-driven Senior Backend Engineer with 10+ years of experience building scalable SaaS platforms, enterprise MIS systems, and high-performance REST APIs using PHP, Laravel, CodeIgniter, and MySQL. Proven impact in optimizing systems (60% faster DB response), automating workflows (50% effort reduction), and developing payment solutions handling 500+ monthly transactions. Full-stack capable (Vue.js, jQuery, AJAX, React-basics) with strong expertise in Git and Agile development. Currently expanding into Python & AI with hands-on experience in LLM integration, RAG pipelines, and prompt engineering to build intelligent applications. CORE TECHNICAL SKILLS

Backend Development: PHP 7/8, Laravel (5.4-10.x), CodeIgniter (2.x-4.5), REST API, OAuth, JWT Database Management: MySQL, Database Design, Query Optimization, Indexing, Database Migration, Redis Frontend Technologies: JavaScript, jQuery, AJAX, Vue.js, Ionic, HTML5, Bootstrap, Responsive Design Enterprise & SaaS: MIS, SaaS, CRM/ERP, Multi-tenant Architecture, RBAC, Admin Panels, Laravel Nova Payment & Integration: Stripe, Recurring Payments, Payment Gateway Integration Version Control & DevOps: Git ( GitHub/GitLab), Version Control, Apache, Linux, Vercel Emerging Technologies: Python, Django, Generative AI, OpenAI APIs, Large Language Models (LLMs), RAG

(Retrieval-Augmented Generation), AI-powered Applications Tools: Postman, Swagger, PHPUnit, JIRA, Composer, VS Code, PHPStorm PROFESSIONAL EXPERIENCE

Senior Software Engineer

Capitalnumbers Infotech Pvt. Ltd. February 2021 - Present

• Architected RESTful APIs (Laravel) for enterprise training and service management system with JWT auth and RBAC middleware

• Optimized MySQL queries via indexing and query refactoring, reduced response time by 60%

• Developed MIS systems for party rental services, managing leads, bookings, inventory tracking, automated reporting, and email system.

• Implemented Git version control workflows and code review processes, improving team collaboration by 40%

• Delivered Laravel Nova admin panels with role-based access control and data validation Senior PHP Developer

Farmneed Agribusiness Pvt. Ltd. October 2020 - February 2021

• Developed REST APIs using Laravel 5.4 for mobile application backend connecting farmers with agricultural experts

• Managed Git repositories and implemented branching strategies for a team of 5 developers

• Built real-time notification system and chat functionality using AJAX and WebSocket integration PHP Developer

Officious Infrastructure Pvt. Ltd. April 2020 - September 2020

• Developed Laravel-based backend systems with MySQL database integration for a real estate application. Software Engineer

ClickNotices Software LLP November 2015 - March 2020

• Led development of MIS systems for loan management, real estate, and job portal platforms

• Integrated Stripe payment systems for SaaS applications handling 500+ transactions monthly

• Designed normalized MySQL database schemas supporting multi-tenant architecture

• Automated delinquency tracking, cutting manual intervention by 70% EDUCATION

Bachelor of Technology (B.Tech) in Computer Science and Engineering Brainware Group of Institutions, Maulana Abul Kalam Azad University of Technology 2011-2015 KEY PROJECTS & ACHIEVEMENTS

Enterprise Training & Service Management System (2026-Present) Tech Stack: Laravel API Laravel Nova Ionic Vue REST API MySQL Git - Version Control

• Architected REST API backend serving cross-platform Ionic Vue mobile application, JWT auth with role-based middleware

• Developed Laravel Nova admin panel for managing training programs, referrals, and timesheets

• Managed codebase using Git version control with branching strategies and code review workflows AI Transcription & Translation Platform (2026)

Tech Stack: Python (Django REST Framework) React OpenAI APIs Git

• Developed REST APIs using Django and integrated with React frontend for file upload, processing, and structured transcription handling

• Integrated OpenAI Whisper for transcription and gpt-4.1-mini model for multilingual translation with timestamped outputs

• Deployed frontend on Vercel and backend on Render with Git-based auto-deployment pipeline Live Demo: https://transcribe-ai-nine.vercel.app

Just4funpartyrentals.com - MIS Backend System (2022-2026) Tech Stack: CodeIgniter 4.5 REST API jQuery AJAX MySQL

• Migrated legacy CodeIgniter 2.x to 4.5, improving performance and security

• Built RESTful APIs for WordPress frontend integration and third-party service connectivity

• Developed MIS system for inventory management, booking automation, and lead tracking Uruploadz.com - Music Platform API (2021)

Tech Stack: Laravel 8 REST API Stripe MySQL Git React.js Integration

• Designed and implemented RESTful APIs for React.js frontend with JWT authentication

• Integrated Stripe recurring payment system for SaaS subscription management MIS for Cortex Construction Solution (2018-2020)

Tech Stack: Laravel 5.4 jQuery AJAX MySQL

• Led full-stack development of comprehensive MIS system from ground up as Lead Developer

• Designed normalized MySQL database schema and implemented business logic algorithms

• Built modules for leave management, salary processing, job card tracking, and invoice generation Noticeline - Loan Management System (2017-2019)

Tech Stack: Laravel 5.4 jQuery AJAX MySQL

• Created loan and EMI calculation algorithms handling complex financial computations

• Built comprehensive system for loan requests, disbursements, EMI tracking, and lead management ClickNotices - Rent & Delinquent Management System (2016-2018) Tech Stack: CodeIgniter jQuery AJAX MySQL Git

• Developed and maintained backend for automated court filing and case management

• Automated delinquency tracking process reducing manual intervention by 70% CERTIFICATIONS & TRAINING

• Ionic - Build iOS, Android, and Web Apps with Ionic & Angular - Udemy (2026)

• Multimedia (IT Smart) - Brainware - 70%

• Hardware (PC Magic) - Brainware - 76%

• NCC 'A' Examination Certificate - Grade B

PERSONAL DETAILS

Nationality: Indian

Languages Known: Bengali, Hindi, English

Interests: Travelling, Cooking, Photography

TECHNICAL COMPETENCIES

Backend Systems & Architecture: PHP (7/8), Laravel, CodeIgniter, RESTful API Design, Microservices, Service-Oriented Architecture, OAuth2, JWT, API Versioning & Documentation (Swagger/OpenAPI) Data Engineering & Performance: MySQL, Database Architecture & Optimization, Indexing Strategy, Query Tuning, Stored Procedures, Data Modeling, Redis Caching, Transaction Management Software Design & Engineering: Object-Oriented Programming, SOLID Principles, Design Patterns, Repository Pattern, Service Layer Architecture, MVC, Scalable System Design

Enterprise & SaaS Solutions: Multi-tenant Architecture, SaaS Platforms, MIS/CRM/ERP Systems, Admin Dashboards, Reporting Engines, Workflow Automation

Payment Systems: Stripe Integration, Payment Gateways, Subscription Management, Recurring Billing, PCI Compliance Considerations

Frontend & Integration Layer: Vue.js, JavaScript, jQuery, AJAX, REST Integration, Responsive UI Architecture, Headless CMS Integration

Security & Compliance: Authentication & Authorization, Role-Based Access Control (RBAC), Data Encryption, Secure Coding Practices, SQL Injection/XSS/CSRF Prevention

DevOps & Infrastructure: Git (GitHub/GitLab/Bitbucket), Linux Environments, Apache/Nginx, Docker (Containerization Basics), CI/CD Fundamentals

AI & Emerging Tech: Generative AI Integration, LLMs (OpenAI), RAG Pipeline Architecture, Prompt Engineering, AI Feature Implementation

Development Ecosystem: Composer, NPM, PHPStorm, VS Code, MySQL Workbench, JIRA, Confluence, Agile Methodologies

Contact this candidate