Niku Nitin
@nikunitin
Senior backend engineer building scalable PHP APIs, database performance, and reliable third‑party integrations.
What I'm looking for
I’m a Senior Backend Engineer focused on building PHP as a scalable backend engine—especially high-volume APIs, database performance, and third-party integrations that keep logistics running. At Smart Working Solutions, I own the backend of a warehouse management system serving 500+ logistics clients and processing tens of thousands of orders a day.
I migrated the core from PHP 7.4 to 8.2 with zero downtime, and fixed the biggest database bottleneck by decomposing a 3 GB monolithic log table and redesigning indexes across the slowest queries. I also defined and built extension APIs for an in-house partner app store (Inertia.js and Livewire), now at 165+ active installs, while mentoring junior developers and setting backend code review standards.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Smart Working Solutions
Oct 2025 - Present (9 months)
Owned the backend of a warehouse management system processing tens of thousands of orders per day. Migrated PHP 7.4 to 8.2 with zero downtime, improved database performance by redesigning indexes for a monolithic log table, and built a partner app store using Inertia.js and Livewire while mentoring junior developers.
Senior Developer
SmartDG
Jun 2025 - Jul 2025 (1 month)
Built a cross-platform IoT platform on Laravel 12 for MQTT device ingestion with PostgreSQL and Laravel Reverb for real-time updates. Implemented role-based API security with Sanctum and delivered under TDD with feature and end-to-end coverage.
Senior Developer
Farmd
Sep 2024 - May 2025 (8 months)
Structured the API layer using repository pattern and SOLID service boundaries to deliver 600+ production endpoints supporting high traffic. Built HMAC-signed outbound webhooks and a cursor-based event feed using Redis-backed queues, led Laravel 10→12 and Nuxt 2→3 migrations, and increased test coverage from 22% to 78%.
Senior Engineer
CodeClouds IT Solutions
May 2021 - Aug 2024 (3 years 3 months)
Built eCommerce checkout systems across three CRMs and three payment gateways, owning authentication, webhooks, retry semantics, and data consistency. Developed a Shopify subscription app using GraphQL with Redis-backed Laravel Queues, migrated Laravel 6→10 and PHP 7.2→8.2, and introduced automated testing to reach 78% coverage.
Education
Degrees, certifications, and relevant coursework
Indian Institute of Science Education and Research, Kolkata
Master of Science, Physics
2016 - 2021
Completed an MSc in Physics at the Indian Institute of Science Education and Research, Kolkata from 2016 to 2021.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Portfolio
github.com/nick-nds/nexusJob categories
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