Arsalan is available for hire
Hire ArsalanArsalan Arshad
Verified Expert in Engineering
Full-stack Software Developer
Karachi, Sindh, Pakistan
Toptal member since July 28, 2026
Bio
Arsalan is a full-stack and mobile engineer with 8 years of experience shipping React, React Native, and Node.js products to the App Store, Google Play, and the web. He has built real-time IoT monitoring for 50+ sites, BLE-connected mobile apps, a live AI-powered Shopify app, and platforms serving 100,000+ users. He owns features end to end, from TypeScript front ends to CI/CD and cloud deployment, has led small teams, and works full US business hours.
Portfolio
Sustainable Infrastructure Company
React, JavaScript, TypeScript, Node.js, Full-stack, Mapbox, Website Maintenance...
Learn BI
React, Stripe, CI/CD Pipelines, GitHub, User Experience (UX), Tailwind CSS...
OurCrew
JavaScript, Full-stack, React, React Native, TypeScript, Node.js, iOS, Back-end...
Experience
- REST APIs - 8 years
- Redux - 8 years
- Full-stack - 8 years
- React - 8 years
- Mobile App Development - 8 years
- JavaScript - 8 years
- React Native - 8 years
- TypeScript - 5 years
Work Experience
Full-stack Developer
2025 - 2026
Sustainable Infrastructure Company
- Architected a real-time IoT monitoring system, improving HVAC telemetry tracking and reducing equipment downtime across 50+ locations.
- Built React 19/Vite front end with Redux, Mapbox GL, Highcharts, and Power BI integration serving 200+ concurrent users.
- Designed custom drag-and-drop UI components, reducing administrative overhead by 40% across equipment configuration and incident tracking.
- Implemented role-based authentication, enabling secure access for 15+ user roles with TanStack Router and persistent state management.
- Engineered real-time data synchronization with Firebase, achieving 99.2% uptime for monitoring dashboards with offline-first capability.
- Engineered a Firebase-backed geospatial platform to map and analyze 5,000+ distributed infrastructure assets using Mapbox GL and Three.js.
- Developed Node.js and Python Cloud Functions handling 10,000+ daily data ingestion requests with zero data loss and SharePoint sync.
- Created geospatial analysis tools using Turf.js, reducing infrastructure planning time by 35% with real-time calculations and spatial queries.
- Built a drag-and-draw GIS interface enabling 25+ simultaneous collaborative users with polygon, marker, and layer-based filtering tools.
- Implemented real-time Firestore synchronization, automating 60% of infrastructure tracking workflows across 8+ stakeholder teams.
Technologies: React, JavaScript, TypeScript, Node.js, Full-stack, Mapbox, Website Maintenance, REST APIs, APIs, CSS3, GitHub, Python, JSON, CI/CD Pipelines, User Experience (UX), Tailwind CSS, Cloudflare, Web App UX, Web Design, Artificial Intelligence (AI), Claude, Web Development, IT Consulting, Claude Code, Architecture, Responsive Web Design (RWD), Claude API, Software Engineering, UI Design, Full-stack Development, Healthcare Services, Generative Artificial Intelligence (GenAI), Development, Technical Project Management, Project Management, Authorization, Operating Systems, Technical Documentation, AI Agents, Agentic AI, Databases, SaaS, API Development, App Design, Automated Testing, Cloud Computing, System Architecture, Scalable Architecture, Push Notifications, Performance Optimization, Geolocation, Database Design, Docker, App Development, Google Cloud Platform (GCP), Serverless, Manual QA, Manual Testing, QA Testing, Front-end Development, Mobile Development, Open APIs, Software Architecture, Computer Vision, Integration, Elasticsearch, Redis, Fractional CTO, Marketplaces, Third-party APIs, AWS Lambda, Document Parsing, Documentation, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Startups, Security, System Administration, Troubleshooting, OpenAI APIs, AI Integration, Google Cloud, Model Context Protocol (MCP), Code Review, App Submission, Slack, HTML, HTML5, Web, Web Applications, GIS
Full-stack AI Developer
2024 - 2025
Learn BI
- Assembled an AI-powered subscription platform using React and Stripe integration, enabling automated billing and recurring revenue models.
- Built encrypted client communication and payment data channels, maintaining PCI compliance and implementing secure key management protocols.
- Deployed to Netlify and engineered GitHub CI/CD pipelines to automate build, test, and continuous deployment workflows.
- Integrated Stripe API processing 1,000+ monthly subscription transactions with a 99.8% payment success rate and automated invoice generation.
- Optimized user experience, reducing checkout abandonment by 25% through streamlined subscription funnel and payment flow.
- Implemented a Firebase back end managing user authentication, subscription data, and customer profiles with real-time synchronization.
- Leveraged AI-generated tools, reducing development cycles by 40% while maintaining production-grade code quality and security standards.
- Scaled subscription platform to handle 5000+ active subscribers with load balancing and serverless architecture on Netlify.
- Established secure credential management practices, preventing unauthorized access to API keys and sensitive payment processing data.
- Automated deployment pipeline eliminating manual releases, reducing deployment time from 2 hours to 15 minutes per release cycle.
Technologies: React, Stripe, CI/CD Pipelines, GitHub, User Experience (UX), Tailwind CSS, Cloudflare, Web App UX, Web Design, Artificial Intelligence (AI), Claude, LangChain, Web Development, eCommerce, Payment Gateways, Content Management Systems (CMS), PayPal, IT Consulting, Claude Code, Architecture, Responsive Web Design (RWD), Claude API, Software Engineering, UI Design, Full-stack Development, Generative Artificial Intelligence (GenAI), Development, Technical Project Management, Project Management, Authorization, Operating Systems, Technical Documentation, Lovable, AI Agents, Agentic AI, Databases, SaaS, API Development, App Design, Automated Testing, System Architecture, Scalable Architecture, Push Notifications, Performance Optimization, Geolocation, Database Design, Docker, App Development, Google Cloud Platform (GCP), Serverless, Front-end Development, Shopify Plus, Mobile Development, Open APIs, Software Architecture, Computer Vision, Integration, Elasticsearch, Redis, Fractional CTO, Marketplaces, Third-party APIs, AWS Lambda, Document Parsing, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Startups, Technical Leadership, System Administration, Troubleshooting, OpenAI APIs, AI Integration, Google Cloud, Model Context Protocol (MCP), Python, Code Review, App Submission, Slack, HTML, HTML5, Web, Web Applications
Full-stack and Mobile Developer
2023 - 2025
OurCrew
- Built cross-platform mobile and web frontends using React Native and React for time tracking and payroll management across iOS, Android, and web.
- Implemented MobX state management, reducing component re-renders by 45% and improving app responsiveness across time tracking workflows.
- Designed a dual-role UI with distinct workflows for store staff and managers, reducing time entry complexity and training time by 50%.
- Integrated Firebase Authentication and Firestore database binding, providing real-time payroll data synchronization across mobile and web platforms.
- Built responsive Material UI components, ensuring consistent design across iOS, Android, and web, reducing design inconsistencies by 40%.
- Implemented offline-first architecture with MobX caching, enabling staff to track time without internet, with automatic Firebase sync on reconnect.
- Optimized React component rendering with MobX observers, improving app performance by 35% and reducing battery drain on mobile devices.
- Built a complex payroll calculation UI accurately displaying overtime, taxes, and deductions with real-time Firebase data binding.
- Designed an intuitive mobile-first interface for frontline staff, reducing time tracking errors by 30% through clear visual feedback.
- Implemented real-time data synchronization between React and React Native using Firebase, ensuring consistent state across all client devices.
Technologies: JavaScript, Full-stack, React, React Native, TypeScript, Node.js, iOS, Back-end, Mobile App Development, GraphQL, Material UI, REST APIs, APIs, CSS3, GitHub, JSON, Web3, User Experience (UX), MobX, Payment Gateways, PayPal, IT Consulting, Architecture, Responsive Web Design (RWD), User Interface (UI), Fastlane, MobX-State-Tree (MST), Software Engineering, UI Design, Full-stack Development, Generative Artificial Intelligence (GenAI), Development, Technical Project Management, Project Management, Google Analytics, Authorization, Operating Systems, Technical Documentation, AI Agents, Agentic AI, Databases, SaaS, API Development, App Design, Automated Testing, Cloud Computing, System Architecture, Scalable Architecture, Push Notifications, Performance Optimization, Google Maps API, Geolocation, Database Design, Booking Systems, App Development, Google Cloud Platform (GCP), Serverless, Manual Testing, QA Testing, Front-end Development, Mobile Development, Open APIs, Software Architecture, Computer Vision, Integration, Elasticsearch, Redis, Fractional CTO, Marketplaces, Third-party APIs, AWS Lambda, Containers, Document Parsing, Documentation, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Startups, Technical Leadership, Security, Mobile Payments, VMware, System Administration, Troubleshooting, OpenAI APIs, AI Integration, Google Cloud, Code Review, Bootstrap UI, AI Automation, App Submission, Slack, HTML, HTML5, Web, Web Applications
Full-stack Developer
2022 - 2023
Hoome
- Developed React Native augmented reality applications using Expo, enabling AR features across iOS and Android with 95% code reuse.
- Managed automated App Store and Google Play production releases with CI/CD pipelines, reducing deployment time from 4 hours to 30 minutes.
- Integrated Firebase back-end services with real-time database and authentication, enabling seamless user onboarding and data synchronization.
- Built AR visualization features for sports and eCommerce, enabling users to interact with virtual products, reducing return rates by 25%.
Technologies: JavaScript, React, iOS, Android, React Native, Expo, TypeScript, Node.js, Full-stack, Back-end, Mobile App Development, Material UI, REST APIs, APIs, CSS3, GitHub, JSON, Web3, User Experience (UX), Web Design, IT Consulting, Architecture, User Interface (UI), Fastlane, Software Engineering, UI Design, Full-stack Development, Healthcare Services, Development, Technical Project Management, Project Management, Google Analytics, Authorization, Operating Systems, Databases, SaaS, API Development, App Design, Automated Testing, Push Notifications, Performance Optimization, Google Maps API, Geolocation, Database Design, Booking Systems, App Development, Google Cloud Platform (GCP), Front-end Development, Mobile Development, Software Architecture, Computer Vision, Integration, Elasticsearch, Marketplaces, Third-party APIs, AWS Lambda, Documentation, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Startups, Mobile Payments, VMware, Linux Administration, System Administration, Troubleshooting, Code Review, AI Automation, App Submission, Slack, HTML, GIS
Senior Mobile Developer
2021 - 2022
Makerpl
- Developed a cross-platform social networking mobile application using Expo and React Redux, then ejected to React Native for OpenTok SDK integration.
- Implemented real-time video calling using the OpenTok SDK, enabling peer-to-peer communication between students and educators with HD video quality.
- Built an integrated calendar event booking system allowing users to schedule social events and academic meetings with real-time availability updates.
- Launched application at a tier-1 university serving 5,000+ active student users with 98.5% crash-free rate using Firebase Crash Analytics monitoring.
Technologies: JavaScript, React, React Native, Expo, Azure, TypeScript, Full-stack, iOS, Mobile App Development, GraphQL, REST APIs, APIs, CSS3, GitHub, JSON, Web3, User Experience (UX), IT Consulting, Architecture, User Interface (UI), Software Engineering, UI Design, Full-stack Development, Healthcare Services, Google Analytics, Authorization, Operating Systems, Databases, SaaS, API Development, App Design, Cloud Computing, Push Notifications, Google Maps API, Geolocation, Database Design, App Development, Google Cloud Platform (GCP), Front-end Development, Mobile Development, Computer Vision, Integration, Elasticsearch, Redis, Marketplaces, Third-party APIs, AWS Lambda, Documentation, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Startups, Technical Leadership, Security, Mobile Payments, VMware, Linux Administration, System Administration, Troubleshooting, Twilio, Twilio API, Code Review, AI Automation, App Submission, Slack, HTML
Lead Full-stack Developer
2020 - 2021
Waywiser
- Led mobile development for Waywiser social platform on React Native and Expo, creating awareness tools for 100,000+ users to report and avoid scams.
- Architected a full-stack solution with an Express.js/NestJS back end, a MongoDB database, and Firebase services handling real-time scam alert distribution.
- Implemented real-time individual and group chat with push notifications, enabling community discussion and scam awareness sharing.
- Built appointment scheduling with calendar notifications and a content posting system supporting community-driven scam prevention initiatives.
Technologies: Next.js, NestJS, React Native, Express.js, MongoDB, JavaScript, Expo, Redux, Android, React, TypeScript, Node.js, Full-stack, iOS, Back-end, Mobile App Development, Website Maintenance, GraphQL, Material UI, REST APIs, APIs, CSS3, GitHub, Amazon Web Services (AWS), JSON, User Experience (UX), Cloudflare, Web App UX, Web Design, Ubuntu, DevOps, Web Development, Content Management Systems (CMS), IT Consulting, Architecture, User Interface (UI), Software Engineering, UI Design, Full-stack Development, Healthcare Services, Development, Google Analytics, Authorization, Operating Systems, Databases, SaaS, API Development, App Design, Cloud Computing, Push Notifications, Performance Optimization, Google Maps API, Geolocation, Database Design, App Development, Google Cloud Platform (GCP), Front-end Development, Mobile Development, Computer Vision, Integration, Elasticsearch, Redis, Marketplaces, Third-party APIs, AWS Lambda, Containers, Document Parsing, Documentation, English, Software as a Service (SaaS), JavaScript 6, DNS, Mobile App Testing, Mobile Apps, Startups, Technical Leadership, Security, Mobile Payments, VMware, Linux Administration, Server Migration, System Administration, Troubleshooting, Google Cloud, Code Review, Bootstrap UI, AI Automation, App Submission, Slack, HTML, Web, Web Applications
JavaScript Developer
2019 - 2020
Digital Leap
- Developed 15+ full-stack MERN applications as a JavaScript developer, redesigning user interfaces and implementing responsive designs with React and Material UI CSS.
- Built cross-platform mobile applications with React Native for iOS and Android, reducing time-to-market by 30% through code reuse and modular architecture.
- Created scalable Node.js back-end services with Express.js, MongoDB, and PostgreSQL, generating Swagger documentation for 20+ REST and GraphQL APIs.
- Created back-end services using Node.js with Express and MongoDB. Created API documentation using Swagger.
- Used different package modules for web and mobile on Android and iOS. Designed wireframes using Ninja Mockup and worked with Figma and InVision.
- Debugged and refactored legacy applications, upgrading dependencies and improving performance by 40% while mentoring junior developers on best practices.
Technologies: React Native, Express.js, MongoDB, Swagger, Figma, JavaScript, Kotlin, Teams, Next.js, Expo, Redux, Android, React, TypeScript, Node.js, Full-stack, iOS, Back-end, Mapbox, Mobile App Development, Website Maintenance, GraphQL, Material UI, REST APIs, APIs, CSS3, GitHub, Amazon Web Services (AWS), PostgreSQL, JSON, CI/CD Pipelines, User Experience (UX), Cloudflare, Web App UX, Web Design, Ubuntu, DevOps, Web Development, SDK Development, Bluetooth Low Energy (BLE), Embedded Software, Embedded Hardware, Payment Gateways, Content Management Systems (CMS), PayPal, IT Consulting, Architecture, Responsive Web Design (RWD), User Interface (UI), Fastlane, Software Engineering, UI Design, Full-stack Development, Healthcare Services, Development, Authorization, Operating Systems, Databases, API Development, App Design, Cloud Computing, Push Notifications, Performance Optimization, Google Maps API, Geolocation, Database Design, App Development, Front-end Development, Mobile Development, Computer Vision, Integration, Elasticsearch, Redis, Marketplaces, Third-party APIs, AWS Lambda, Containers, Document Parsing, Documentation, English, Software as a Service (SaaS), JavaScript 6, DNS, Mobile App Testing, Mobile Apps, Dart, Startups, Security, VMware, Linux Administration, Server Migration, System Administration, Troubleshooting, Google Cloud, Twilio, Twilio API, Python, Code Review, Laravel, Bootstrap UI, LAMP Server, AI Automation, App Submission, Slack, HTML, Web, Web Applications
Intern Android Developer
2018 - 2019
Internship at Marketing Agency
- Advanced from Android development intern to full developer in under 3 months, demonstrating technical excellence and rapid skill mastery with Java and Kotlin.
- Delivered a complete end-to-end startup solution, including UI/UX design, back-end integration, and deployment on the Google Play Store.
- Implemented Firebase crash analytics leveraging event logs to identify and resolve critical bugs, reducing crashes by 50% across projects.
- Integrated Google Maps and Facebook APIs, enabling location-based features and social engagement for advertising and marketing applications.
Technologies: Android, Kotlin, Back-end, REST APIs, APIs, GitHub, User Experience (UX), SDK Development, IT Consulting, User Interface (UI), Software Engineering, UI Design, Full-stack Development, Development, Authorization, Operating Systems, Databases, App Design, Google Maps API, Geolocation, App Development, Front-end Development, Computer Vision, Integration, Marketplaces, Third-party APIs, AWS Lambda, English, Software as a Service (SaaS), JavaScript 6, Mobile App Testing, Mobile Apps, Linux Administration, Server Migration, System Administration, Troubleshooting, Code Review, Bootstrap UI, App Submission, Slack, HTML
Project History
HACS & Busbar Digital Twin Configurator
A drag-and-drop web configurator that lets engineers visually build and manage electrical panel busbars and HACS digital twins for a smart-infrastructure platform. As the lead front-end developer, I designed the custom drag-and-drop component system in React and TypeScript, added role-based permissions, server-side validation, and audit logging so every configuration change is traceable, and connected the digital twins to live IoT telemetry. The configurator reduced administrative overhead by 40% across equipment configuration and incident tracking.
Thermal AC & Infrastructure Control Dashboard
Real-time telemetry dashboards and GIS map overlays for a smart HVAC and electrical infrastructure platform monitoring equipment across 50+ locations. I built the React 19 and Vite front end with Redux, Mapbox GL, and Highcharts, serving 200+ concurrent users, and worked on the Azure IoT Hub and Azure Functions back end that ingests high-frequency sensor data. I also set up GitHub Actions CI/CD to Azure with Key Vault secrets, plus a Python ETL pipeline that validates incoming readings and flags anomalous sensor data, helping operations teams spot equipment issues early and reduce downtime.
AI Forecast Agent: Shopify Inventory App (Live, Open Source)
https://apps.shopify.com/ai-forecast-agentAn embedded Shopify app, live on the Shopify App Store and open source, that tells merchants what to reorder and when. I built it end-to-end with Remix, Polaris, and the Shopify Admin GraphQL API. It calculates per-SKU reorder points and days of cover from each store's real sales history, and pairs that deterministic math with an AI co-pilot (Claude or Gemini) that explains any number in plain language. The AI is grounded in the actual forecast data, so it never invents figures. Under the hood: OAuth 2.0 via Shopify's official SDK, HMAC-verified webhooks, Prisma-backed sessions, and support for Shopify's mandatory 2027 expiring offline-token migration. Source code: github.com/arsalan-arshad/Ai-Agent-Shopify-App
The Caddy: Golf Scorecard, iOS + Apple Watch App (Live)
https://apps.apple.com/us/app/the-caddy/id1618599124A live iOS app that gives golfers one place to score rounds, track their handicap, and actually improve. As the lead React Native developer, I built Apple Watch scoring; support for Stroke Play, Match Play, Stableford, and Skins formats; an automatic Handicap Index after three rounds; and AI swing analysis from filmed video that detects tempo, swing plane, and common faults. The app also generates personalized four-week coaching plans and includes a Range Coach, leaderboards, and tournaments. Built with React Native, Expo, Redux, and Firebase for real-time sync and authentication, and monetized with monthly and yearly Pro subscriptions. Live on the App Store and is actively updated.
The Football Alarm Clock: iOS App with In-app Purchases (Live)
https://apps.apple.com/us/app/the-football-alarm-clock/id1624350991A live iOS alarm clock that knows your football club's fixtures. As the lead React Native developer, I built the app to cover 104 clubs across the Premier League, EFL, and Scottish Premiership, with fixture-aware alarms that wake fans before kick-off, alarms that ring even when the phone is on silent, and wake-up sounds that react to the latest result. I also built Rival Wake-ups, which send scoreline alarms with voice notes to friends. The app started on Expo and was ejected to bare React Native to use native SDKs, with live match data from a Node.js and Firebase back end. Monetized with a yearly Match Day Pro subscription and one-off in-app purchases. Live on the App Store.
Smart Record Cloner: Salesforce Deep Clone (Apex + LWC, Open Source)
https://github.com/arsalan-arshad/smart-record-clonerAn open-source, one-click deep clone tool for Salesforce. The native clone copies only the parent record, so teams rebuild child records by hand. As the creator and sole developer, I built a solution that discovers parent-child relationships from schema metadata without hardcoding, shifts dates forward, tags cloned children, filters out inactive records, respects field-level security, and rolls back the entire transaction on failure. It ships as a Lightning Web Component modal plus an Agentforce and Flow invocable action, with 87%+ Apex test coverage, Jest tests, and GitHub Actions CI/CD. MIT licensed.
Automated Mobile CI/CD Pipeline Suite (Fastlane + GitHub Actions)
A reusable release automation suite for React Native apps on iOS and Android. As the mobile developer who owned releases, I configured end-to-end Fastlane lanes and GitHub Actions workflows that run automated tests, build signed binaries, and deploy straight to TestFlight, the App Store, and Google Play without manual steps. Combined with over-the-air updates for JavaScript-only fixes, the pipeline gave the team consistent, zero-downtime releases and cut release time by 60% compared with manual builds.
Waywiser: Scam-awareness Social Platform (Web + Mobile)
https://www.linkedin.com/company/waywiser-lifeA web and mobile social platform that helps communities report, share, and avoid scams, built for 100,000+ users. As a lead full-stack developer, I managed a small team of React engineers and led the React Native and Expo mobile app alongside the React web app. I architected the back end with Express.js and NestJS, MongoDB, and Firebase services to distribute real-time scam alerts, and built individual and group chats with push notifications so members could discuss threats and warn each other quickly.
BLE IoT Companion App for ESP32 Devices (React Native)
A cross-platform React Native application for Android and iOS that connects over Bluetooth Low Energy to Espressif ESP32 hardware. I built the Bluetooth communication layer for scanning, connecting, and exchanging data with devices, as well as the mobile interface that lets users monitor and control their connected IoT hardware directly from their phones. The project provided a small hardware business with a single mobile app for both platforms, rather than separate native builds.
Education
2014 - 2017
Diploma Certification in Software Engineering
Aptech - Karachi, Pakistan
Certifications
NOVEMBER 2019 - NOVEMBER 2020
Front-end Development
Free Code Camp
Skills
Libraries/APIs
React, Node.js, REST APIs, MobX, MobX-State-Tree (MST), API Development, Google Maps API, Open APIs, Twilio API, Stripe, Shopify API, Claude API, Liquid, Highcharts
Tools
Figma, Expo, GitHub, Claude, Google Analytics, Shopify Plus, VMware, Slack, GIS, Claude Code, Fastlane, Prisma, Xcode, Jira
Languages
JavaScript, TypeScript, CSS3, Python, JavaScript 6, HTML, HTML5, GraphQL, Shopify Liquid, Dart, Kotlin, Apex
Frameworks
React Native, Redux, Tailwind CSS, Remix, Laravel, Express.js, Material UI, Flutter, Swagger, Next.js, NestJS, Ruby on Rails (RoR), Jest
Paradigms
Responsive Web Design (RWD), UI Design, Automated Testing, Database Design, App Development, Manual Testing, Mobile Development, Model Context Protocol (MCP), DevOps
Platforms
Android, Azure, iOS, Ubuntu, Docker, Google Cloud Platform (GCP), Twilio, Web, Firebase, Mapbox, Amazon Web Services (AWS), Shopify, AWS Lambda, Salesforce, WatchOS, Visual Studio Code (VS Code)
Storage
JSON, Redis, Google Cloud, LAMP Server, MongoDB, PostgreSQL, Databases, Elasticsearch
Industry Expertise
Web Design, Project Management
Other
Full-stack, Mobile App Development, APIs, CI/CD Pipelines, User Experience (UX), Web App UX, Web Development, IT Consulting, Architecture, User Interface (UI), Software Engineering, Full-stack Development, Healthcare Services, Development, Technical Project Management, Authorization, Operating Systems, Shopify Design, App Design, Cloud Computing, System Architecture, Scalable Architecture, Push Notifications, Performance Optimization, Geolocation, Booking Systems, Serverless, Manual QA, QA Testing, Front-end Development, Software Architecture, Computer Vision, Integration, Marketplaces, Third-party APIs, Document Parsing, English, Software as a Service (SaaS), Mobile App Testing, Mobile Apps, Startups, Technical Leadership, Mobile Payments, Linux Administration, System Administration, OpenAI APIs, AI Integration, Code Review, Bootstrap UI, AI Automation, App Submission, Web Applications, Back-end, Website Maintenance, Web3, Cloudflare, Artificial Intelligence (AI), LangChain, eCommerce, SDK Development, Bluetooth Low Energy (BLE), Embedded Software, Embedded Hardware, Payment Gateways, Content Management Systems (CMS), PayPal, Generative Artificial Intelligence (GenAI), Technical Documentation, Lovable, Shopify Customizations, AI Agents, Agentic AI, SaaS, Fractional CTO, Containers, Documentation, DNS, Security, Server Migration, Troubleshooting, Teams, Salesforce Lightning, GitHub Actions, App Store Connect, ESP32, In-app Purchases
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