Crawlbase
Scalable backend architecture for large-scale data extraction and processing, serving millions of requests daily.
// About
The philosophy
I build web, mobile & automation products that hold up under real-world scale — and ship on time.
I’m Muhammad Atif, also known as Atif Siddique (or Atif Siddiqui), a software developer from Karachi building web apps, hybrid mobile apps and data-scraping systems, with 9+ years of progressive, hands-on experience. Brilliant track record of delivering the required tasks on time — calm under pressure, and able to find the optimum way out of even the most critical problems.
Self-motivated, quick learner, team player and a strong problem solver. I plan, prioritize and execute to meet deadlines, and I’ve led teams efficiently across full project lifecycles.
- Data Scraping
- Hybrid Mobile Apps
- Web Platforms & Tech
- Enterprise Applications
9+Years of experience
6Companies & clients
2Freelance platforms
1M+Requests handled daily
// Selected Work
Projects I’ve built
Mobile Solution
Cross-platform mobile application with real-time sync, offline capabilities, and cloud functions integration.
Intelligent Scraper
High-performance data scraping engine designed to bypass anti-bot systems and extract unstructured data at scale.
Analytics Dashboard
Real-time analytics platform with interactive charts, custom reports, and automated data pipeline processing.
// Toolbox
Tech I work with
React.js
React Native
Vue.js
Node / Express
Ruby on Rails
JavaScript
GraphQL
Firebase / GCP
Docker
Kubernetes
Puppeteer
HTML5 / CSS3
// Services
What I do
Full Stack Development
End-to-end web applications with modern architectures, REST & GraphQL APIs, and production-grade deployment.
ReactNode.jsVue.jsRuby on Rails
Mobile App Development
Cross-platform mobile applications with native performance, real-time sync, push notifications, and offline support.
React NativeFirebase
Data Scraping & Automation
Sophisticated web scraping systems that bypass anti-bot protections and extract structured data at massive scale.
PuppeteerPythonNode.js
Frontend Engineering
Pixel-perfect, responsive interfaces with smooth animations, component systems, and performance optimization.
ReactTailwindGraphQL
// Journey
Where I’ve worked
Senior Frontend Engineer / Frontend Lead at DevAndGo
Leading frontend architecture for Crawlbase, a web-data API platform, and a team of 3 engineers. Building with React, TypeScript, Vue.js, Ruby on Rails, GraphQL and Tailwind CSS.
React Native Developer at MeeW World
Built cross-platform mobile features in React Native, GraphQL and Firebase for a remote-first team in Copenhagen.
Full Stack JavaScript Developer at Panacloud Pvt Ltd
Full Stack JavaScript Developer working across React, React Native, Node.js, and Express for enterprise-grade solutions.
4 years freelancing — trusted on Upwork & Fiverr
// Education
Academic background
Bachelor's Degree
Federal Urdu University
2015 — 2019Professional Certification
Certified Web & Mobile Developer
Advanced Full Stack// Client Reviews
What clients say
Mobile apps
It was a pleasure working with you Atif. The service was great and the response to reviews for development issues were fast and precise. Very professional. Would recommend it to everyone!
amarhaxhiuAlbaniaMobile apps
He created an application for my company which we can continue with the base he built. He did an excellent job and was very fast with developing the application. Very well done, thanks!
dennissminkNetherlandsWeb apps
Seller was able to understand the requirement very well and completed the deliverable sooner than I expected. He was very prompt in responding to any questions and was available almost any time of the day. I would definitely contact him for future requirement.
Seller has good knowledge in react-redux. My requirement was little complicated . He understood perfectly and delivered very fastly. I would vouch for him.
ikrishh29IndiaWeb apps
Had very little time, but helped me through very good. Was very impressed by the delivery and he was answered my questions very good. Was always available and answered within a few minutes. I would recommend him
Mobile apps
Professional, smart, kind and pleasant, i have found this seller EXCELLENT ! Hope to work with him again in the future!
yorgodallarasIsraelWeb apps
He is the best, fast delivery and very efficient the code is amazingly organized and easy to understand. he fixes all the bugs, very experienced. I recommend him to everyone want to create react app.
Mobile apps
He was very good with communication and responded anytime I messaged him even though we’re on different time zones. He also explained to me the problems as he provided solutions to fixing them.
Mobile apps
professional and responsible. I really appreciate your good work. I hope to work with you on the next project
masrstoreEgyptShowing 9 of 82 reviews
// Writing
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// Get in touch
Let’s build
something.
Have a project in mind? Need a developer? Let’s talk.