Senior PHP/Laravel Performance Engineer

Tirtharup Bhattacharyya

Kolkata, India **********************@*****.*** +91-798******* LinkedIn Professional Summary

Senior PHP and Laravel Engineer with 15+ years of experience building backend applications, RESTful APIs, integrations, and data-driven systems. Built APIs serving 100,000+ monthly active users, reduced API response times by up to 40%, cut a high-volume Laravel batch process from 25 hours to 4 hours, and reduced a critical AWS RDS query from 20 seconds to 3 seconds. Strong in relational databases, query optimization, automated testing, Git, CI/CD, code reviews, and technical problem solving.

Core Skills

● PHP and Laravel: PHP 7/8, Laravel 10/11, Symfony, Codeigniter, CakePHP, Object Oriented PHP, SOLID Principles, Design Patterns, Composer

● API Design and Integration: REST APIs, RESTful Web Services, API Architecture, Payment APIs, Shipping APIs, Salesforce Integration, Webhooks

● Databases: MySQL, PostgreSQL, Amazon Aurora, AWS Redshift, Schema Design, Indexing, Query Optimization, Stored Procedures

● Performance and Processing: Redis, Laravel Horizon, Queues, Background Jobs, Parallel Processing, Caching

● Frontend: HTML5, CSS3, JavaScript ES6+, React.js, Vue.js, Alpine.js, Livewire

● DevOps and Quality: Git, Docker, GitHub Actions, CI/CD, AWS EC2, S3, RDS, PHPUnit, PHPStan, Playwright, Unit Testing, Integration Testing

● Engineering: Code Reviews, Debugging, Refactoring, Technical Leadership, Mentoring, Agile, Stakeholder Communication

Professional Experience

Freelance Senior Software Engineer

March 2026 - Present

● Reduced high-volume Laravel batch processing from 25 hours to 4 hours by redesigning work distribution across parallel worker processes.

● Reduced a critical AWS RDS query from 20 seconds to 3 seconds through indexing and query restructuring.

● Replaced 871 manual regression checks with a Playwright automation suite, reducing repetitive release validation work.

● Reduced Algolia API calls by 20% through query restructuring and caching while integrating click and conversion tracking.

SOZO Design Ltd. Senior PHP and Laravel Developer April 2021 - February 2026

● Built REST APIs serving 100,000+ monthly active users and reduced response times by up to 40% through API and backend optimization.

● Implemented Redis caching, queues, and Laravel Horizon for asynchronous processing and background jobs, improving API throughput and reliability.

● Designed modular backend components and microservices to support feature changes without rewriting existing services.

● Designed and optimized MySQL schemas and queries for write-intensive workloads and production performance.

● Automated deployments with Docker and GitHub Actions and contributed to code reviews, architecture decisions, and structured mentoring.

Tata Consultancy Services Ltd. Assistant Consultant November 2020 - March 2021

● Built a PHP payment SDK covering 7 processor operations: checkout initiation, order posting, authorization, void, sale, reversal, and payment plans.

● Introduced PSR-4 autoloading and produced the Software Design Document for Phase I, delivered on schedule.

● Worked directly with the customer team on requirements clarification and system integration testing support. ARC Document Solutions India Pvt. Ltd. Technical Lead July 2019 - November 2020

● Led an 8-person engineering team delivering IdleSleep ERP, a Laravel logistics platform integrated with FedEx, UPS, and Salesforce.

● Delivered supplier, order, warehouse, SKU, and vendor workflows plus shipping label creation, bulk import, and two-way shipping updates.

● Migrated order data to AWS Redshift and added New Relic and PaperTrail for application monitoring.

● Managed SIT, UAT, and production deployments and produced ERDs, SOWs, SDDs, and workflow diagrams. Web Spiders India Pvt. Ltd. Technical Lead

May 2016 - July 2019

● Led a 7-person team delivering 2 enterprise parts inventory and reporting systems for Mitsubishi Motors Europe.

● Designed and delivered Laravel SaaS applications and service platforms for enterprise clients.

● Built PHP and Laravel backend systems and API integrations, with earlier project work in Symfony and CodeIgniter.

● Ran code reviews and mentored developers on architecture standards, implementation practices, and production troubleshooting.

Selected Projects

High-Volume Laravel Data Platform

● Reduced batch processing from 25 hours to 4 hours using parallel worker processes for high-volume data workloads.

● Used background processing and database optimization to reduce synchronous application work. IdleSleep ERP

● Built a Laravel logistics platform integrating FedEx, UPS, and Salesforce for order synchronization and two-way shipping updates.

● Delivered supplier, order, warehouse, SKU, vendor, shipping label, and bulk import workflows. Payment Processor SDK

● Built a PHP SDK covering 7 payment operations and introduced PSR-4 autoloading.

● Produced the Software Design Document and delivered Phase I on schedule. Education

● Post Graduate Diploma in Management, Information Systems Jadavpur University

● Bachelor of Science, Chemistry University of Calcutta Certifications

● ITIL Foundation

● Agile Practitioner E1

Contact this candidate