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Ahtisham S
@ahtishamshahzad
Level 2
React Native and Expo Mobile App Engineer with Nextjs and AI Integrations
Pakistan
English
About me
I build AI-powered mobile apps and SaaS products for founders and small teams, using React Native, Expo, Next.js, Node.js and the OpenAI API.
I take iOS and Android apps from MVP to store release, add AI features such as chatbots, OpenAI, Claude and Gemini integrations and RAG, and build SaaS web apps, admin dashboards, APIs and workflow automation. I also fix app crashes and Expo EAS build errors.
I have 7+ years of experience as a software engineer with a BS in Computer Science, including marketplaces, an AI-powered art marketplace and SaaS platforms. Message me before ordering.
Skills
Ahtisham S
$20/hour
Offline •
Average response time: 1 hour
See my services
Cross-Platform Development
I will fix expo eas build errors and deploy your ios and android app
Cross-Platform Development
I will develop react native ios and android mobile apps for startups
Want to work on an hourly basis?
Tell Ahtisham S what you need.
$20
/
hourPortfolio
Work experience
Senior Software Engineer
Global Software Consulting • Full-time
Jan 2025 - Present • 1 yr 9 mos
Owned development of production web and mobile products across React, Next.js, React Native and Expo, taking features from architecture through release. Designed and maintained shared monorepo architecture with Turborepo across web, mobile and backend applications. Built backend services and serverless workflows using Node.js, NestJS, PostgreSQL, AWS Lambda and API Gateway. Integrated production payment flows including Stripe, Stripe Connect, Apple Pay, Google Pay and RevenueCat. Worked across authentication, API integrations, state management, performance optimization, testing, CI/CD and production debugging. Led frontend implementation and supported architectural decisions across multiple product areas, including code reviews and mentoring for junior engineers. Supported production releases across the App Store, Google Play, web and desktop platforms.
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Senior Software Engineer
Fiverr • Freelance
Jan 2019 - Present • 7 yrs 9 mos
Working as an independent software engineer, I build production-ready mobile applications, web platforms, SaaS products, backend systems, and AI-powered solutions for startups and businesses worldwide. My primary expertise is React Native and Expo development for iOS and Android. I handle mobile architecture, responsive interfaces, API integrations, authentication, payments, subscriptions, push notifications, real-time features, performance optimization, testing, Expo EAS builds, and App Store and Google Play deployment. I also develop Next.js and React web applications, Node.js and NestJS APIs, PostgreSQL databases, admin dashboards, multi-tenant platforms, and AWS cloud infrastructure. My AI experience includes OpenAI, Claude, Gemini, RAG systems, chatbots, virtual assistants, and workflow automation. With 7+ years of professional experience, I manage the full development lifecycle—from product planning and architecture to deployment, communication, and long-term support.
Senior Software Engineer
Obenan • Full-time
Oct 2023 - Jan 2025 • 1 yr 3 mos
Led frontend engineering for core Obenan products, including the Dashboard, Landing Platform and OmniPulse. Built and maintained production SaaS interfaces using Next.js, React, TypeScript, Redux Toolkit, Tailwind CSS and Turborepo. Developed backend services and REST APIs with Node.js, Express.js and PostgreSQL for platform integrations and business workflows. Worked on AI-driven product features within a platform supporting 1,500+ locations across 43+ countries and integrations with 100+ platforms. Built responsive, SEO-focused web applications using Next.js SSR/SSG and reusable frontend architecture. Integrated Strapi CMS and multilingual functionality for dynamic content and internationalized products. Collaborated with product and backend teams to translate complex business requirements into production-ready features.
41 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 41 Reviews
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Most relevant
charissaenget
United States
Ongoing collaboration
Ahtisham has done a great job helping me build my application to learn Thai! He was communicative the entire time, added my updates, and finished faster than I expected. I plan on hiring him again in the future when I want to further develop my app.
Helpful?
charissaenget
United States
Ongoing collaboration
Ahtisham did great work for my simple app. He got it done before the deadline and made updates quickly.
Helpful?
jesus_pas
Spain
Ongoing collaboration
The developer successfully implemented the i18n structure, authentication systems, transactional emails, and notification foundations required for the platform. Communication was smooth throughout the process, technical issues were resolved collaboratively, and the delivered structure provides a solid...
Helpful?
jesus_pas
Spain
Ongoing collaboration
The developer successfully implemented the new marketplace pages and adapted the frontend to support the evolving marketplace structure of Blaia. Communication was smooth, feedback was handled professionally, and technical issues were resolved quickly during development. The developer showed flexibility...
Helpful?
jesus_pas
Spain
Ongoing collaboration
Very good experience working together. The developer was responsive, professional, and committed throughout the project. He successfully delivered the requested features and was always willing to make adjustments and improvements when needed. Recommended.
Helpful?
