Backend & Web Apps
PHP, Laravel, CodeIgniter, MySQL, REST APIs and webhooks — the layer business systems actually run on.
Founder & Developer, DevStacker
Full-stack web developer · BS Computer Science
Based in Pakistan · Working remotely, worldwide
About
DevStacker is the practice of Abdul Waheed — a full-stack developer working with PHP, Laravel, WordPress, and Perfex CRM since long before "AI agency" was a pitch. The work is the unglamorous kind businesses actually run on: websites that load fast, CRMs shaped to real workflows, automations that don't silently break, and email that reaches the inbox.
Most growing businesses don't have a technology problem — they have a connection problem. The website was built by one freelancer, the CRM configured by another, and nobody owns how the pieces fit. DevStacker exists to be the one partner who does: the same person who builds your stack is the person who maintains it, and the person you message when something matters.
That includes building products, not just services. LiveChat for Perfex CRM — live chat and an AI chatbot that turn website visitors into CRM leads — was designed and built here, and is maintained like everything else: honestly specified, fairly priced, and supported by the developer who wrote it.
Based in Pakistan, working worldwide
Remote-first since the start, with working-hours overlap for US and UAE clients — and support from the developer, not a ticket queue.
You own everything
Your domain, your website, your data. DevStacker builds and maintains; ownership never transfers to us.
Fixed quotes, in writing
Scope and price agreed before work starts. If something falls outside the scope, it's quoted separately first — no surprise charges.
Payment without friction
Services invoiced via Wise/Payoneer; the module through secure checkout. Standard, traceable, boring — as payments should be.
The toolkit
The same skills that build client sites also built the product on this site — and maintain both.
PHP, Laravel, CodeIgniter, MySQL, REST APIs and webhooks — the layer business systems actually run on.
Custom WordPress builds, Elementor sites, plugin troubleshooting, performance and security — including long-term maintenance of live client sites.
Installation, customization, and custom module development — including LiveChat for Perfex CRM, a module designed and built from scratch.
n8n workflows and Mautic email automation that remove repetitive steps between your tools.
SPF, DKIM, and DMARC done properly, plus AWS SES — so business email lands in the inbox, not spam.
Ubuntu VPS administration, CloudPanel/Nginx, Cloudflare and DNS hardening — the reliability layer most freelancers skip.
Let's build a digital stack that works together — and keep it that way. Start with a free audit: no pressure, no automated score, a real review by the developer who would do the work.