Saad is available for hire
Hire SaadSaad Mahmood
Verified Expert in Engineering
Cloud Solution Architect and Developer
Lahore, Punjab, Pakistan
Toptal member since February 3, 2022
Bio
Saad is a senior full-stack engineer with 10+ years of experience in Ruby on Rails and React/Next.js using JavaScript and TypeScript. He architects scalable, maintainable systems with Rails, React, PostgreSQL, and AWS in both monolithic and microservice environments. Skilled in MongoDB, Redis, Docker, Kubernetes, and CI/CD, he’s passionate about clean architecture, DevOps, and building secure, high-performance distributed systems.
Portfolio
TAQRIR
JavaScript, React, Node.js, PostgreSQL, REST APIs, TypeScript, NestJS, SQL...
CRB Monitor
Ruby, Ruby on Rails (RoR), Heroku, PostgreSQL, Ruby Performance, CSS, Git, HTML...
Inside Outside Counsel
Ruby on Rails (RoR), CSS, Git, HTML, Back-end Development, PostgreSQL...
Experience
- Ruby on Rails (RoR) - 8 years
- Node.js - 7 years
- Angular - 6 years
- React - 6 years
- Next.js - 4 years
- Cloud Architecture - 4 years
- Docker - 2 years
- DevOps - 2 years
Preferred Environment
Ruby on Rails (RoR), React, Node.js, Angular, Amazon Web Services (AWS), Payment APIs, PostgreSQL, HTML, Next.js, Web App UI
The most amazing...
...thing I've created is a strategic crisis ERP tool with real-time strategic decision-making, tracking, contingency, and resource and scenario planning features.
Work Experience
Senior Team Lead Engineer
2025 - 2026
TAQRIR
- Led end-to-end delivery across front end and back end, owning major product areas: the 7-step mission wizard, admin facility panel, MD review workflow, validation engine, offline/PWA sync, and billing/onboarding modules.
- Built offline-first PWA mission capture: IndexedDB drafts, queued sync operations, local/server ID reconciliation, and auto-sync on reconnect — enabling field use in low-connectivity environments.
- Worked on multi-tenant SaaS for healthcare operators — facilities, branches, units, seat-based billing, and role-specific admin panels support scaling across organizations under one platform.
- Worked on production deployment in KSA — GCP Dammam hosting, bilingual admin UI, and Saudi-specific clinical/coding standards (ICD/SBS/ACHI, MOH triage, SCFHS licensing).
Technologies: JavaScript, React, Node.js, PostgreSQL, REST APIs, TypeScript, NestJS, SQL, Next.js
Ruby on Rails Developer
2022 - 2023
CRB Monitor
- Supported the client's live web and FTP servers, which they use to run their business workflow.
- Performed multiple integrations to Honeybadger and Jira and automated business workflows and deployments.
- Reduced effort for upcoming features by developing and architecting modules and test cases, achieving client satisfaction.
Technologies: Ruby, Ruby on Rails (RoR), Heroku, PostgreSQL, Ruby Performance, CSS, Git, HTML, Back-end Development, Web Development, APIs, Back-end, REST APIs, HTML5, SQL, CI/CD Pipelines, Microservices, Testing, SaaS Design, API Architecture, Microservices Architecture, Performance, Sidekiq, REST, Payment Gateways, Ruby on Rails 3, Ruby on Rails 4, Databases, Upgrades, Ruby on Rails API, Code Review, ActiveRecord, Marketplaces, Database Design, CRUD, Full-stack Development, Web App UI, Bootstrap, jQuery, API Design, GitHub, API Integration, App Design, Deployment, Scalability, Monorepos, Authentication, Angular 18, Figma, Front-end Development, Responsive UI
Full-stack Developer
2022 - 2022
Inside Outside Counsel
- Engaged as a full-stack developer to integrate a WordPress-like CMS into a Ruby on Rails app.
- Developed the entire nested, dynamic CMS using Ruby on Rails.
- Completed the project to the client's satisfaction in under 10 business days.
Technologies: Ruby on Rails (RoR), CSS, Git, HTML, Back-end Development, PostgreSQL, Web Development, APIs, Back-end, REST APIs, AWS Lambda, Amazon Simple Queue Service (SQS), HTML5, SQL, Testing, Software Architecture, Performance, Sidekiq, REST, Payment Gateways, Ruby on Rails 3, Ruby on Rails 4, Databases, Upgrades, Ruby on Rails API, Stripe API, ActiveRecord, MySQL, Hotwire, CRUD, Tailwind UI, Serverless, Amazon DynamoDB, API Gateways, Redis Cache, Web App UI, Bootstrap, jQuery, API Design, GitHub, API Integration, App Design, Deployment, Scalability, Monorepos, QR Codes, Authentication, ActiveAdmin, Web Accessibility, Front-end, Angular 18, Figma, Sass, Front-end Development, Responsive UI
Lead Software Engineer
2021 - 2022
10Pearls
- Led a cross-functional team in delivering a mission-critical project, meeting all project milestones and exceeding client expectations, ensuring business continuity in the event of system failures or unforeseen circumstances.
- Improved scalability and flexibility and reduced maintenance efforts after leading the migration of a complex monolithic application to a microservices architecture.
- Reduced deployment time by 50% and increased overall software quality and stability by implementing CI/CD pipelines and automating testing processes.
- Orchestrated cloud service expenses while maintaining optimal performance and reliability.
- Participated in industry conferences and events, sharing insights and expertise and staying abreast of the latest trends and advancements in cloud architecture and development. Made new connections and expanded my boundaries.
Technologies: Ruby on Rails (RoR), React, Next.js, Redux, CSS, Git, HTML, Back-end Development, PostgreSQL, MERN Stack, Web Development, MEAN Stack, APIs, Back-end, REST APIs, Express.js, Webpack, AWS Lambda, Amazon Simple Queue Service (SQS), SaaS, Redis, Multitenancy, MongoDB, Google Cloud Platform (GCP), TypeScript, HTML5, SQL, CI/CD Pipelines, Kubernetes, Microservices, WebSockets, Testing, AWS Cloud Architecture, SaaS Design, Software as a Service (SaaS), Software Architecture, API Architecture, Microservices Architecture, Leadership, Serverless Architecture, Separation of Concerns (SoC), EventBus, Performance, Sidekiq, ECS, REST, YAML, GitHub Actions, Payment Gateways, Ruby on Rails 3, Ruby on Rails 4, Databases, Upgrades, Ruby on Rails API, Stripe API, Stripe Payments, Material UI, Code Review, Risk Assessment, IT Security, ActiveRecord, HIPAA Compliance, Marketplaces, API Databases, Database Design, React Native, Software System Design & Configuration, Scalable Web Services, DigitalOcean, cPanel, MySQL, Hotwire, CRUD, Tailwind UI, Stimulus, Serverless, Amazon DynamoDB, API Gateways, Redis Cache, Full-stack Development, Web App UI, Bootstrap, jQuery, API Design, GitHub, API Integration, App Design, Deployment, Scalability, Security, Monorepos, Data Engineering, ETL, QR Codes, Authentication, ActiveAdmin, Web Accessibility, Front-end, Figma, Sass, NestJS, Mobile App Development, iOS, Figma to HTML, Front-end Development, Responsive UI
Senior Software Engineer
2016 - 2021
Techverx
- Developed a food supply chain app featuring a kitchen display system, orders, resource reporting, 3rd-party integrations, Microsoft Dynamics 360, ERP, Twilio, and SendGrid.
- Wrote the unit and integration test cases covering the basic unit integration functionality and the ripple effects.
- Created the architect plans of multiple applications being developed by the company. Received recognition from clients for consistently delivering high-quality solutions within budget, resulting in long-term partnerships and repeat business.
Technologies: Ruby on Rails (RoR), Node.js, React, Next.js, Angular, Docker, DevOps, Amazon Web Services (AWS), Amazon EC2, Amazon S3 (AWS S3), AWS IAM, AWS Key Management Service (KMS), Linux, JavaScript, Python, Full-stack Development, Architecture, Stripe, Search Engine Optimization (SEO), Full-stack, Web Scraping, Cloud Architecture, Redux, CSS, Git, HTML, Back-end Development, PostgreSQL, MERN Stack, Web Development, MEAN Stack, APIs, Back-end, REST APIs, Express.js, Webpack, SaaS, Redis, Multitenancy, TypeScript, HTML5, SQL, CI/CD Pipelines, Kubernetes, Apache Kafka, Microservices, WebSockets, Testing, AWS Cloud Architecture, SaaS Design, Software as a Service (SaaS), Software Architecture, API Architecture, Microservices Architecture, Leadership, Serverless Architecture, Separation of Concerns (SoC), EventBus, Performance, Sidekiq, ECS, REST, YAML, GitHub Actions, Payment Gateways, Ruby on Rails 3, Ruby on Rails 4, Databases, Upgrades, Ruby on Rails API, Stripe Payments, Material UI, Code Review, Risk Assessment, IT Security, ActiveRecord, HIPAA Compliance, Marketplaces, API Databases, Database Design, React Native, Software System Design & Configuration, Scalable Web Services, DigitalOcean, cPanel, MySQL, CRUD, Stimulus, Web App UI, Bootstrap, jQuery, API Design, GitHub, API Integration, App Design, Deployment, Scalability, Security, Monorepos, Data Engineering, ETL, QR Codes, Authentication, ActiveAdmin, Web Accessibility, Front-end, Figma, Sass, NestJS, Figma to HTML, Front-end Development, Responsive UI
Associate Software Engineer
2016 - 2016
IyeSoft Studio
- Started my career after my academic era by developing POS desktop applications for Medical and Academics.
- Created a billing module for a medical store POS system for vendors' daily sales and billing.
- Operated on the learning that minor things or details can significantly impact data analysis and reporting.
Technologies: VB.NET, Crystal Reports, Git, HTML, Back-end Development, Web Development, APIs, REST APIs, SaaS, Redis, HTML5, SQL, Performance, CRUD, Bootstrap, jQuery, API Design, GitHub, API Integration, Front-end Development
Experience
CrisisHub
An ERP tool that helps teams manage daily incidents by providing an action plan for two bodies, admins and workers. Admins execute the plan while workers implement it, efficiently handling sudden, periodic, planned, drilled, and scheduled incidents. The project includes reporting, communication chat, and a basic set of ERP, with an added feature of running automated simulated drills to improve action plan execution in real time.
InspectPoint
https://www.inspectpoint.com/A construction company's cross-platform multi-tenant software that helps keep track of inspections. InspectPoint generates inspection reports, produces professional fire pump performance curves, creates service proposals in the field, and documents and prioritizes deficiencies. It also provides resource schedulers, routine, attendance, site visit calendars, and material inventory and receipt.
We met business needs by enabling (a) employees to see their daily routines in a calendar table and (b) administrators to assign routines in a dashboard. The client experienced a 20% growth in system usage.
We met business needs by enabling (a) employees to see their daily routines in a calendar table and (b) administrators to assign routines in a dashboard. The client experienced a 20% growth in system usage.
Brokrete
https://brokrete.com/Brokrete is a construction business software that handles material inventory. Brokrete offers contractors the opportunity to digitally source and order from any supplier through a single platform.
After a contractor referral system was placed, the client had a 15% growth per month as new contractors boarded the Brokrete platform.
After a contractor referral system was placed, the client had a 15% growth per month as new contractors boarded the Brokrete platform.
Lynceus Partners
https://lynceus-partners.com/A high maintenance marketplace to sell products online at the exact currency rate.
I worked as a software engineer for six months managing all daily operations and upcoming client requests. I also developed test suites, contributing to 20% of the existing functional codebase. I learned to write intense-level test suites.
I worked as a software engineer for six months managing all daily operations and upcoming client requests. I also developed test suites, contributing to 20% of the existing functional codebase. I learned to write intense-level test suites.
Valis ACAM
https://www.valisbioscience.com/A health care platform for therapy in the USA that deals with case studies of severe condition patients for treatment and training purposes.
I upgraded the application's version stalk. I re-architectured the app, making it smooth for the client by using AWS cloud services.
The satisfaction of seeing medical doctors and nurses using the software around their hospitals and health care is a considerable achievement.
I upgraded the application's version stalk. I re-architectured the app, making it smooth for the client by using AWS cloud services.
The satisfaction of seeing medical doctors and nurses using the software around their hospitals and health care is a considerable achievement.
"FrameSuite"
An imagery-oriented platform where users can design and decorate his/her houses, wall arrangements, and many more.
I wrote a custom JavaScript library to manipulate canvas resulting in image customization like crop, applying filters, custom width borders, rotation, etc.
I wrote a custom JavaScript library to manipulate canvas resulting in image customization like crop, applying filters, custom width borders, rotation, etc.
ReadingLab
A comprehensive academic management system with resource-wise attendance, calendar, billing, reporting, and automated notifications—features crucial for efficient educational institutions. It has real-time attendance tracking and detailed calendar systems that optimize resources and create a conducive learning environment. This ensures smooth academic years with well-planned events, including holidays and exams.
Inside Outside Counsel (IOC)
A WordPress-based CMS Rails profile application to display the lawyer platform where lawyers can create their profiles and be hired by IOC's clients. The site's interface was meant to be redesigned to attract the target audience. I also integrated the Chameleon Ruby on Rails gem and added menu and item entities to facilitate the basic idea of making it all editable through the design dashboard.
CRB Monitor
https://app.crbmonitor.com/A monitoring platform that empowers financial institutions to manage cannabis-related risk and opportunity better. CRM Monitor is the leading information provider in the cannabis industry, tracking over 52,000 Cannabis-related businesses, 131,000 cannabis licenses, 74,000 beneficial owners, and 1,400 cannabis-linked securities.
I engaged as a Ruby on Rails developer for CRB Monitor, a company with an existing software platform built on Ruby and Postgres sitting on Heroku. I was involved in maintaining the system and fixing issues. I also contributed to the development of new features.
I engaged as a Ruby on Rails developer for CRB Monitor, a company with an existing software platform built on Ruby and Postgres sitting on Heroku. I was involved in maintaining the system and fixing issues. I also contributed to the development of new features.
Education
2012 - 2016
Bachelor's Degree in Computer Science
FAST National University of Computer and Emerging Sciences - Lahore, Punjab, Pakistan
Skills
Libraries/APIs
React, Node.js, Stripe, REST APIs, Sidekiq, Ruby on Rails API, ActiveRecord, jQuery, Twilio API, Stripe API, Google Maps API
Tools
Git, GitHub, Figma, AWS IAM, AWS Key Management Service (KMS), Webpack, Hotwire, Figma to HTML, CircleCI, Crystal Reports, Amazon Simple Queue Service (SQS)
Languages
JavaScript, SQL, HTML, Ruby, HTML5, YAML, Angular 18, Sass, Python, PHP, CSS, TypeScript, GraphQL, VB.NET, C++
Frameworks
Ruby on Rails (RoR), Next.js, Express.js, Ruby on Rails 3, Ruby on Rails 4, Bootstrap, NestJS, Angular, AngularJS, Laravel, Redux, Tailwind CSS, Material UI, React Native, Stimulus, AWS HA
Paradigms
Testing, REST, Database Design, CRUD, DevOps, Search Engine Optimization (SEO), MEAN Stack, Microservices, API Architecture, Microservices Architecture, Serverless Architecture, HIPAA Compliance, ETL
Platforms
Heroku, Amazon EC2, DigitalOcean, Docker, Amazon Web Services (AWS), Linux, AWS Lambda, Google Cloud Platform (GCP), cPanel, Kubernetes, Apache Kafka, iOS
Storage
PostgreSQL, Databases, API Databases, MySQL, MongoDB, Amazon S3 (AWS S3), Redis, Amazon DynamoDB, Redis Cache
Other
Full-stack Development, Full-stack, Back-end Development, Web Development, APIs, Back-end, SaaS, Multitenancy, SaaS Design, Performance, Payment Gateways, Upgrades, Code Review, Risk Assessment, Marketplaces, API Gateways, Web App UI, API Design, API Integration, App Design, Deployment, Scalability, Security, Monorepos, QR Codes, Authentication, ActiveAdmin, Web Accessibility, Front-end, Front-end Development, Responsive UI, Cloud Architecture, Architecture, Integration, Payment APIs, Web Scraping, MERN Stack, CI/CD Pipelines, WebSockets, AWS Cloud Architecture, Software as a Service (SaaS), Software Architecture, Separation of Concerns (SoC), ECS, GitHub Actions, Stripe Payments, IT Security, Software System Design & Configuration, Scalable Web Services, Tailwind UI, Serverless, Data Engineering, Mobile App Development, Ruby Performance, Computer Vision, Networking, Web Programming, Leadership, EventBus
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