Browse categories
Explore
Fiverr Pro
English
$
USD
Zain Haider
@corehives
Shaping ideas with Custom Development
Pakistan
English
About me
I'm Zain Haider, a Full Stack Developer with 5+ years of experience designing and building web, mobile, desktop, CRM, and cross-platform applications. I help startups and businesses turn ideas into scalable, high-performing digital products. My expertise includes Figma, React Native, Flutter, Electron, PHP/Laravel, Node.js, .NET, Swift, Kotlin, and Java. From custom CRMs and SaaS platforms to mobile apps and enterprise solutions, I deliver secure, user-friendly applications built for growth and long-term success.
My Portfolio:
https://zain-officials.netlify.app/profile/portfolio/index.html
Skills
Zain Haider
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will your senior expert full stack developer
Full Stack Web Applications
I will develop a custom CRM or web application admin dashboard
Portfolio
Work experience
Software Engineer
Pegasync • Full-time
Aug 2024 - Dec 2025 • 1 yr 4 mos
Developed a complete logistics portal for a client, including a driver mobile app, using Laravel, Vue.js, MySQL, and Ajax Implemented OTP-based login system for staff and drivers to enhance platform security Created an escrow system for a medical equipment marketplace, handling multi-role (admin, vendor, customer) flows using Stripe and Paystack integrations Built a Progressive Web App (PWA) to make the platform installable on desktop and mobile devices Integrated Amazon SP-API to automate order booking when a new order is received on the website Developed custom APIs for logistics mobile applications, including shipment tracking and order updates using the TryOTO API Ensured authentication and login for drivers via OTP verification within the logistics app
Associate Software Engineer
Trax Logistics • Full-time
Dec 2022 - Feb 2024 • 1 yr 2 mos
Developed and maintained core logistics modules using PHP (Laravel), MySQL, Blade, JavaScript, and jQuery Led the design and implementation of the Return Orders & Shipments Module, managing complex delivery, refund, and re-routing logic Collaborated in an Agile environment using Jira to manage sprint tasks, estimate effort, and deliver within timelines Integrated real-time shipment updates and order tracking features to improve logistics transparency and user experience Actively performed unit testing to ensure code stability and reduce bugs in production Worked closely with QA engineers, product managers, and designers to deliver seamless, scalable, and efficient solutions Followed clean code practices, wrote reusable components, and regularly participated in code reviews
Jr Laravel Developer
Answerly Inc • Full-time
Feb 2022 - Dec 2022 • 10 mos
Developed and maintained features using Laravel, Blade, jQuery, and JavaScript Collaborated in an Agile sprint environment alongside QA testers, frontend developers, and project managers to deliver weekly milestones Worked on blockchain-related modules using the Stellar Blockchain API, including: Token creation Managing trustlines Wallet interactions Asset transfers and other Stellar-based operations Contributed to building a platform that connected web applications with decentralized token utilities Wrote clean, well-documented code and ensured feature testing in coordination with QA
2 Reviews
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-2 out of 2 Reviews
Sort By
Most relevant
maren8285
United States
Zain took my CRM code and fix all the issues in a meantime. Looking forward to work with him
Seller's Response
Helpful?
smith3131
United Kingdom
Zain quickly identified and fixed a complex Node.js API issue that was breaking our login flow. He didn’t just patch it, he fixed the root cause and improved the overall stability. Communication was clear and the turnaround was fast. Highly recommended.
Seller's Response
Helpful?
