Saad Abdullah
Senior Full-Stack Engineer for SaaS, AI automation, and API integrations.
Senior Full-Stack Engineer for SaaS, AI & API Integrations
Build, scale, and fix production-grade SaaS, AI automation, and API integrations for startups, SaaS teams, agencies, and growing businesses.
I help startups, SaaS companies, agencies, and businesses build production-ready SaaS products, AI automation systems, CRM platforms, and complex API integrations.
Available for SaaS development, API integrations, platform modernization, and long-term engineering partnerships.
What I Help Businesses Build
Commercially relevant software services for founders, product teams, agencies, and growing businesses.
I build and modernize software products for startups, SaaS teams, agencies, and growing businesses that need reliable engineering, not just extra development capacity.
My strongest work sits at the intersection of SaaS development, third-party API integrations, AI automation, and rescue work for existing Laravel, Next.js, and React applications.
From MVP architecture to production optimization, I focus on building systems that solve real business problems and remain maintainable as they scale.
SaaS founders
MVP development, subscriptions, team workflows, dashboards, and multi-tenant architecture.
Agencies
White-label engineering support for client platforms, dashboards, integrations, and product builds.
Growing businesses
Custom CRM, ERP, booking, marketplace, e-commerce, and internal operations software.
Product teams
Take over existing Laravel, Next.js, and React applications for optimization, feature delivery, and long-term support.
Systems I design and build
- —Multi-tenant SaaS platforms
- —Third-party API, OAuth, and webhook integrations
- —AI automation tools and product features
- —Existing product rescue and modernization
- —CRM, ERP, booking, and marketplace systems
- —Real-time dashboards and business platforms
Problems I Solve
The strongest opportunities are SaaS builds, API integrations, AI automation, and rescue work for existing applications.
Launching a SaaS or MVP
Turn an idea into a production-ready product with the right architecture, billing, authentication, dashboards, and deployment plan.
Fixing an unstable existing product
Audit codebases, improve performance, fix broken integrations, reduce technical debt, and stabilize products already in market.
Handling difficult API integrations
Implement OAuth, webhooks, background sync, retries, rate-limit handling, and third-party platform integrations that behave reliably in production.
Adding AI to business workflows
Build AI-powered features, internal automations, content workflows, and business processes that save manual work instead of adding noise.
SaaS Product Development
Build MVPs and production-grade SaaS platforms with the architecture needed for subscriptions, teams, permissions, dashboards, and long-term growth.
MVP development · Multi-tenant systems · Billing and subscriptions · Dashboards and portals · Scaling and production deployment
API & OAuth Integrations
Connect products with third-party platforms through secure OAuth flows, webhooks, synchronization jobs, and resilient API architecture.
OAuth authorization · Webhooks and event handling · Background sync jobs · Rate limit and retry handling · Social, payment, and business APIs
AI Automation for Business Operations
Add useful AI to products and internal workflows with automation systems focused on support, content, operations, and repetitive manual work.
AI agents and assistants · Content and workflow automation · OpenAI integrations · Lead and support workflows · Product feature integration
Existing Product Rescue & Modernization
Take over Laravel, Next.js, and React applications that need performance work, architecture improvements, bug fixing, and ongoing senior engineering support.
Codebase audits · Bug fixing and refactoring · Performance optimization · Database and API improvements · Long-term engineering partnership
Case Studies
A smaller set of projects framed around the business problem, what was built, and the technical outcome.
Type: Enterprise SaaS / Social CRM
Scope: Full-stack architecture + real-time communication system
A unified dashboard that aggregates 9+ social and messaging platforms into a single interface for support and engagement teams.
The challenge
Teams were forced to manage conversations, comments, and engagement across disconnected social and messaging platforms.
What I built
Built a unified inbox that centralizes multi-platform communication, team collaboration, analytics, and real-time synchronization.
Technical outcome
Created a centralized communication workflow with live sync across channels and a scalable base for high-volume engagement operations.
Integrated platforms: Facebook · Instagram · WhatsApp · Telegram · Line · Skype · Slack · Twitter/X · LinkedIn
Tech stack: Laravel · React · WebSockets · Facebook Graph API · WhatsApp API · Telegram API · MySQL · Redis · REST APIs
Type: Multi-tenant SaaS Platform
Scope: Blinkpost / Hybrid-style automation platforms
A scalable SaaS platform for social media automation, scheduling, and AI-assisted content workflows for global clients.
The challenge
Businesses needed a single platform to manage social publishing, automation, and subscription-based collaboration across teams.
What I built
Built a multi-tenant SaaS product with scheduling, AI-assisted workflows, billing, campaign management, and admin analytics.
Technical outcome
Delivered production-ready SaaS architecture that supports tenant isolation, recurring billing, and scalable background processing.
Tech stack: Laravel · Next.js · Node.js · OpenAI API · Stripe · PostgreSQL · Redis · WebSockets
Type: AI SaaS / Content Automation
Scope: BlinkPost-style content automation
AI-driven platform for generating, optimizing, and publishing content across multiple social channels.
The challenge
Marketing teams needed faster content production and publishing workflows without managing each channel manually.
What I built
Created an AI-driven platform for content generation, editing, approval, scheduling, and multi-channel publishing.
Technical outcome
Reduced manual publishing effort by centralizing content workflows and preparing posts for automated cross-platform distribution.
Tech stack: Next.js · Laravel · OpenAI · PostgreSQL · Queue Workers · Social APIs · Docker
Mobile Backend API Platform
Hashed System
Type: API Infrastructure / Mobile Backend
Backend system powering multiple mobile applications with a shared API-first architecture.
The challenge
Multiple mobile applications required a consistent backend foundation instead of fragmented APIs and admin tooling.
What I built
Designed a shared API-first backend with authentication, operations tooling, notifications, and reusable business workflows.
Technical outcome
Established a scalable backend layer that supported multiple mobile products while simplifying internal operations.
Tech stack: Laravel · React · REST APIs · MySQL · Firebase · JWT Auth
Type: Internal SaaS / CRM Tool
A lightweight CRM system designed for sales teams to manage leads and pipeline stages efficiently.
The challenge
Sales teams needed a simpler system to track leads, activity, and pipeline movement without relying on rigid off-the-shelf tools.
What I built
Built a lightweight CRM with drag-and-drop pipeline management, permissions, notifications, and reporting.
Technical outcome
Improved internal visibility into sales activity and created a workflow tailored to the team's own process.
Tech stack: Laravel · PostgreSQL · WebSockets · Vue/React Admin Panel · Redis
Type: SaaS Booking System
Scope: Service-based scheduling (LetsGetPoppin-style)
A scheduling system for service-based businesses with automated reminders and availability management.
The challenge
Service businesses needed a reliable booking flow with live availability, reminders, and payments managed from one place.
What I built
Built a scheduling platform with booking logic, provider administration, reminders, and Stripe-backed payments.
Technical outcome
Centralized appointment operations and reduced manual coordination through automated scheduling workflows.
Tech stack: Next.js · Node.js · Stripe · PostgreSQL · Node Cron Jobs · Email APIs
Why Clients Hire Me
Proof points that matter when the goal is shipping reliable software, not just adding another developer profile.
Business-first engineering
The goal is not just shipping code. It is building systems that solve a clear operational or revenue problem.
Strong API and integration depth
Especially valuable for OAuth, webhooks, social platforms, payments, and synchronization-heavy products.
Production-ready systems
Architecture, queues, caching, databases, deployment, and long-term maintainability are built into the delivery approach.
Reliable long-term partner
Available for MVPs, rescue work, new features, and ongoing engineering partnerships after launch.
How We Work
A simple delivery process that gives clients clarity from first message to production support.
01
Discovery
Understand the business model, users, workflows, integrations, and success criteria before writing code.
02
Architecture
Define the stack, database model, integrations, and delivery milestones based on the product's real constraints.
03
Development
Build in milestones with regular demos, clear communication, and focus on quality from the start.
04
Testing
Validate functionality, performance, integrations, and edge cases before pushing to production.
05
Deployment
Launch with the right environment setup, monitoring, background jobs, and production hardening.
06
Ongoing support
Continue with optimization, maintenance, feature work, and technical improvements as the product grows.
Proof & Trust
Real trust signals and sample client feedback to support the core positioning.
6+ years experience
Founder-led delivery across SaaS platforms, integrations, business software, and product modernization.
13+ portfolio projects
Case studies spanning SaaS, CRM, booking, marketplace, mobile, and API-driven products.
Public hiring channels
Clients can continue the conversation directly, or verify profiles on LinkedIn, Upwork, GitHub, and Fiverr.
“Saad shipped our platform on time and made sensible calls on architecture. The automation pieces saved our team hours every week.”
“Clear communication, clean code, and no drama. Our CRM requirements were messy; he structured them into something we could actually use.”
“The marketplace handled more traffic than we expected at launch. He was straightforward about trade-offs and stuck around post-launch.”
Core Stack
Technology still matters, but here it supports the delivery story instead of leading it.
Frontend
Next.js · React · TypeScript · Tailwind CSS · Vue.js · Livewire
Backend
Laravel · Node.js · PHP · REST APIs · WebSockets · Nest.js
Mobile
Flutter · React Native
Database & Cache
PostgreSQL · MySQL · Redis · Firebase
AI & Automation
OpenAI · AI Agents · Workflow Automation
Cloud & DevOps
Docker · Linux VPS · Git · CI/CD · Nginx
Integrations
Stripe · Meta APIs · Google APIs · TikTok API · WhatsApp API
Start a Project
Tell me what you're building, what is blocked, and how you want to work together.
Available for SaaS development, API integrations, modernization projects, and long-term engineering partnerships.
Email works best: saadabdullah314405@gmail.com