I'm Hassan, a full-stack architect specializing in Next.js and Node.js SaaS systems. I review your current architecture (codebase, database, infra) and hand you the top risks and a prioritized fix list, no pitch.
WHAT I REVIEW
Focused technical reviews for SaaS teams building for their next stage.
Multi-tenant systems, database design, and infrastructure that holds up as you grow. Refactored klic.gg, a multiview livestreaming platform, for faster load times and a codebase that is easier to extend.
Retrieval-augmented generation, voice agents, and AI-powered workflows. Built Voxility AI, an AI SaaS platform that consolidated 5 separate communication channels into one AI voice/chat agent using RAG and Twilio. Where prompt engineering meets system design: I build the AI pipelines and make sure the infrastructure underneath can handle them.
Platforms that can't go down. Delivered infrastructure for camposviola.ngo, a documentary film and media organization serving 400,000+ users via AWS S3/CloudFront, and CPPA-G, a national government system.
Third-party integrations, payment systems, and webhook pipelines that connect cleanly and fail gracefully. Built Twilio-powered voice/SMS integration into Voxility AI's multi-channel agent.
Schema design, migrations, and performance tuning for PostgreSQL and Supabase. Verified tenant data isolation during an independent review of a multi-tenant SaaS CRM.
Deployment pipelines and CDN setup built for scale. Delivered AWS EC2, S3, and CloudFront infrastructure for camposviola.ngo, serving 400,000+ users.
PORTFOLIO
Systems designed for scale, reliability, and real-world complexity.
AI Communication Platform
Multi-channel AI SaaS platform with RAG-powered retrieval, voice agents, and Twilio integration, consolidating 5 communication channels (SMS, email, WhatsApp, voice, social) into one AI agent, fully synced with the client's CRM.
Case study on request
CPPA-G
Built a national government electricity-sector system using Next.js, Node.js, and PostgreSQL. Case study details available on request given the sensitivity of government-system work.
Case study on request
camposviola.ngo
Rebuilt the platform's entire infrastructure for a documentary film and media organization: an EC2 production environment with Nginx, PM2, and automated CI/CD via GitHub Actions. Decoupled media delivery with S3 and CloudFront. Built a fully interactive four-language experience (German, English, French, Spanish) with language-aware URL routing, serving 400,000+ users.
"Hassan is far more than a developer — he's a systems architect, a strategic collaborator, and someone who genuinely elevates the quality of the work he touches."
klic.gg
Performance and code-health work on a multiview livestreaming platform for gaming, esports, and live content. Improved both frontend and backend response speed, and refactored existing component and code structure to make the codebase easier to extend and maintain.
House of Pakistan
A visual marketplace experience for discovering businesses, services, and destinations across Pakistan's five provinces, with location-aware browsing and a searchable directory foundation.
Case study on request
CASE STUDIES
Engaged as an independent technical reviewer for a multi-tenant, AI-enabled SaaS CRM platform built for the construction/field-service industry. Scope covered architecture, security, and code quality review across sequential development milestones, separate from the build team and reporting directly to the client's leadership.
Key Finding
Identified and independently verified a tenant data-isolation issue at the code level. Confirmed the root cause via direct source inspection and cross-tenant testing, then validated the fix after remediation.
Every finding was independently verified before being reported, including retracting an initial concern after confirming it was a false positive from placeholder UI data, not a real defect. This is the standard I hold every review to: evidence over assumption.
Delivered milestone-by-milestone review reports with clear pass/fail readiness assessments, helping the client catch and remediate real issues before production launch.
Client and product details anonymized under NDA
WHAT CLIENTS SAY
"I worked with Hassan during the early planning and consultation stage of Rooted Nourish. He brought thoughtful technical insight to our discussions, particularly around database planning and translating business needs into potential technical solutions. I appreciated his responsiveness, willingness to listen, and ability to contribute ideas during the planning process."
Founder, Rooted Nourish
LinkedIn recommendation
"We have hired Hassan to develop a complex Proof of concept tool that was delivered successfully. The team was communicating great and available for meetings and workshops to go through the requirements. Turnaround time on testing changes was fast and collaboration was effective."
Startup client, Australia
React, Node.js and AWS build, 479 hours
Upwork review, 5.0 rating
"Hassan is a very good collaborator. He successfully led our Fullstack project by combining strong technical project management with savvy marketing insight. He is an entrepreneur who knows how to ship code and sell the solution."
Solutions Architect, Mercurial Minds
LinkedIn recommendation
WHO YOU'LL TALK TO
I'm the founder of PromptOrbit. For five years I've built and reviewed Next.js and Node.js products for startups and agencies, from AI voice platforms to a national government system. I lead a small team, and when you book a review you talk to me directly.
Connect on LinkedInTHE PROCESS
Pick a free 45-min time on the calendar.
Send a repo link, staging URL, or just describe the problem.
Walk away with your top 3 architecture risks and a prioritized fix list.