Principal Mobile & Web Architect | 14+ Years' Expertise in High-Performance Apps | AI-Enhanced Development For over a decade, I have architected and engineered robust, scalable, and user-centric mobile and web applications for a global clientele. As a seasoned full-stack developer, I possess a rare and valuable perspective, understanding the entire digital ecosystem from native iOS and Android development to complex backend infrastructure. My passion is transforming ambitious ideas into reality. I don't just write code; I build comprehensive digital solutions that solve real-world problems, drive user engagement, and deliver measurable business results. To stay at the forefront of innovation, I now leverage cutting-edge AI development tools to enhance efficiency, ensure code quality, and accelerate time-to-market, giving my clients a significant competitive advantage. If you are looking for a technical lead who can own a project from concept to launch and beyond, you've found your expert. Core Competencies & Technical Proficiencies 🚀 AI-Powered Development: • Utilizing modern AI-driven platforms (e.g., Rork, Loveable) to streamline workflows, automate testing, and produce high-quality, maintainable code. 📱 Mobile Application Development (iOS & Android): • Native iOS: Swift, Objective-C • Native Android: Kotlin, Java • Cross-Platform: React Native, Flutter • Wearable Tech: watchOS, Wear OS 💻 Web & Backend Engineering: • Frontend: React.js, Vue.js • Backend: Node.js, PHP • Databases: Firebase, SQLite, PostgreSQL, MongoDB, Supabase • Cloud: AWS (EC2, S3), Azure, Google Cloud, Heroku, Hetzner • APIs: RESTful Web Services, Microservices Architecture 🛠️ Tools & Project Management: • Version Control: Git, Bitbucket, SVN • Project Management: Jira, Trello, Asana, Zoho • CI/CD & Distribution: TestFlight, Diawi, WeTransfer Specialized Expertise & Project Highlights I have a proven track record of successfully delivering complex, large-scale applications across a variety of demanding sectors. • AI-Powered Solutions: Integrating machine learning models and AI services to create intelligent, data-driven applications. • Augmented Reality (AR): Building immersive and interactive AR experiences. • Live Media Streaming: Developing high-availability, low-latency streaming platforms. • E-Commerce: Creating secure, high-volume online retail applications with integrated payment gateways (Stripe). • Health & Fitness: Engineering apps for tracking, monitoring, and promoting wellness. • Geolocation Services: Expertise in location-aware applications, mapping, and real-time tracking. • Real-Time Communication: Building instant messaging apps, social platforms, and event-based systems with robust push notification services. • Custom SDKs & Frameworks: Designing and developing reusable software development kits. • Video & Photo Processing: Advanced experience with FFMPEG for creating video from images and music, and developing photo filtering applications. I am actively seeking challenging, large-scale projects where I can apply my extensive experience and leadership skills to build something truly exceptional. Let's connect to discuss how I can bring your vision to life. #MobileAppDevelopment #iOSDevelopment #AndroidDevelopment #ReactNative #FlutterDevelopment #SwiftDeveloper #KotlinDeveloper #FullStackDeveloper #MobileArchitect #TechnicalLead #AIDevelopment #ARDevelopment #CrossPlatformDevelopment #NodeJS #Firebase #AWSExpert #APIIntegration #EcommerceDevelopment #MVPDevelopment #ScalableApps

⭐ Top Rated Plus Full Stack Tech Lead | Top 3% of Upwork Talent ⭐ With 15+ years of experience and as a Top Rated Plus developer on Upwork, I partner with clients to lead and deliver high impact web, mobile, and SaaS solutions. My status signifies a proven history of success on large, long term, and complex projects, backed by a 100% Job Success Score. Expertise in React, React Native, Next.js, Node.js, Shopify, Ruby on Rails, and AWS, with 100+ projects delivered successfully. From initial architecture to final deployment, I am your dedicated technical lead for building scalable, secure, and user-centric applications. ✅ My Core Services: - Full Stack Development: End to end application development using React, React Native, Next.js, Node.js, and Ruby on Rails. - Web & Mobile Solutions: Responsive websites, progressive web apps (PWAs), and native applications with React Native. - E-commerce & Shopify: Custom Shopify theme/app development, Shopify Plus expertise, and WooCommerce solutions. - SaaS Platform Architecture: Building robust, multi-tenant SaaS applications from MVP to enterprise grade systems. - DevOps & Cloud: CI/CD pipelines, containerization (Docker, K8s), and infrastructure management on AWS/GCP/Heroku. 🏆 Proven Results: - Successfully delivered over 100+ projects, including 50+ notable SaaS platforms and 15+ high conversion Shopify stores. - Consistently praised for clear communication, proactive problem-solving, and unwavering commitment to client success. - Client Testimonial: "Usman's communication and execution are unmatched!" Ready to build something exceptional? Let's connect and discuss how I can bring technical leadership and expert development to your project.

Your MVP demos beautifully. Then real users arrive - and it quietly starts losing data, leaking sessions, and breaking in ways you can't reproduce. That's usually when founders call me. I'm a senior backend engineer who rescues SaaS products that were shipped too fast - whether vibe-coded on Lovable, v0, Bolt, or Replit, built by a cheap agency, or a prototype that suddenly got real users. The demo worked. Production didn't. I turn it into something users can't break. Founders usually find me in one of three moments: • It breaks under real users. Records silently go missing, background jobs fail with no one noticing, auth leaks sessions, and a schema written in a hurry turns every new feature into a week of firefighting. • It's about to be judged. A pilot with a bigger customer, a funding round, or technical due diligence - and the backend won't survive the load OR the code review. • An AI feature needs to ship for real. A chatbot, RAG system, or LLM pipeline that was a weekend prototype now needs rate limits, cost controls, retries, and a real architecture behind it. The bug I get called for most: a sync or webhook pipeline that silently drops a few percent of records - until the numbers stop reconciling weeks later and no one can tell when it started. I've hardened exactly these pipelines on high-scale platforms serving millions of users a month. Why your project is safe with me I've spent 15+ years on backend platforms, including evolving a Shopify SaaS from a fragile monolith into a 14-service platform handling 8M+ webhooks a month and 2M+ monthly customers - while cutting infrastructure cost 60%. A smaller backend in trouble is low-risk in my hands. Top Rated Plus • 100% Job Success • 3,997 hours on Upwork. The stack Node.js, NestJS, TypeScript, Python, FastAPI, PostgreSQL, MongoDB, Redis, Kafka, Stripe, OpenAI / LLM APIs, AWS, Kubernetes. The work is hardening auth and tenant boundaries, making jobs and webhooks idempotent, fixing data integrity and payment flows, and adding the tests, CI/CD, and monitoring that should have been there from day one. How engagements run No open-ended hourly coding. Every rescue is a structured 4-week sprint: • Week 1 - The Audit. Deep backend review, ending in a written System Health Report and a prioritized risk roadmap. • Weeks 2–3 - The Hardening. Silent failures fixed: data integrity, idempotent jobs and webhooks, auth and tenant isolation, payment and sync reliability. Architectural traps closed before they break at scale. • Week 4 - The Handover. Staging, CI/CD, monitoring and alerts, a runbook, and Loom walkthroughs so whoever comes next isn't lost. End state: a backend that survives real traffic, passes due diligence, and handles 10x growth without a rewrite. Beyond rescue I also build SaaS backends from scratch and add production-grade AI - RAG, semantic search, and LLM pipelines that are real instead of demo-quality, with the rate limits, cost controls, and observability that keep them from burning your API budget. 💬 "Junaid is for sure one of the top developers I met on Upwork. I can give a solid 7/5 to him for the quality of work, ability to be self directed, no need of micromanagement, diving deep where he needs to be, thinking about business not just technical perspective in terms of maintainability, architecture, and all. Definitely an asset." - Slav, CEO Rush I take one or two rescues at a time. This work is high-trust, and doing it properly for a few beats doing it badly for many. If your backend's in trouble, send me an invite with a link to the repo. A Backend Health Report comes back within 48 hours - no charge, no sales call.

I’m a results-driven Software Engineer with 10+ years of experience delivering high-impact digital solutions across web and mobile. My work with Mobile craft, Coliving Investor hub, Nice2Stay, and HiveHQ reflects my commitment to technical excellence, transparency, and client success. 🚀 VIbe Code, AI-First, and Scalable Development I help startups and enterprises build faster, smarter, and leaner using vive code and AI-powered tools.By combining AI automation with modern frameworks like React, Next.js, Node.js, PHP, and Supabase, I deliver robust full-stack applications from MVPs and SaaS web apps / dashboards to custom CRMs and workflow automation tools. My focus: reduce engineering overhead, accelerate release cycles, and empower teams to scale intelligently. Whether you're launching an MVP, automating workflows, or embedding AI into your product, I deliver agile, future-proofed solutions with speed and precision. 💻 Tech Stack & Tooling Expertise 🔹 Vibe Code & AI Tools . Cursor – AI pair programming and refactoring . Replit – Cloud IDE for rapid prototyping . Supabase – Scalable backend, auth, and edge functions . Lovable – No-code app builder 🔹 Full-Stack Web & App Development . Frontend: React.js, Next.js, Tailwind CSS, TypeScript . Backend: Node.js, Laravel, REST & GraphQL API Development . Mobile: React Native, Flutter . Databases: PostgreSQL, MongoDB, Supabase 📌 Core Strengths ✅ 25+ 5-star reviews across global clients ✅ Proven delivery on projects ✅ MVPs that secure seed and Series A funding ✅ Deep experience in SaaS, CRM, and AI-powered platforms ✅ Agile delivery, clean code, and full ownership 🌍 Timezone Advantage Available with flexible working hours based on the client’s timezone. Ensuring smooth communication and timely collaboration. 🤝 Let’s Build Smarter, Faster If you’re ready to launch an MVP, embed AI into your product, or accelerate digital transformation through low-code and full-stack innovation, let’s talk. I’ll help you turn your idea into a scalable, intelligent product on time and on budget. 📩 Message me to discuss your project goals.

Hi! I'm a Full Stack Developer with 10+ years of experience building websites, web apps, and mobile apps that are fast, clean, and built to last. I've worked with startups, agencies, and businesses of all sizes. I don't just write code — I understand what you actually need and deliver it properly, on time, every time. What I build & how it helps you: React.js — Modern, fast web applications with smooth user experience. Perfect for dashboards, portals, and custom web products. React Native — One codebase, two platforms. Your app runs on both Android & iOS without double the cost. Webflow — Pixel-perfect marketing websites and landing pages with built-in CMS. No ongoing dev cost for simple updates. Framer — Stunning interactive websites with smooth animations that convert visitors into customers. Drupal — Enterprise-level CMS for large platforms needing custom features, roles, and high security. WordPress — Custom themes, plugins, and WooCommerce stores that you can manage on your own later. REST APIs — Connects your app to payment gateways, third-party tools, and any backend service you need. MySQL / PostgreSQL — Safe, fast, and scalable database design for any size of application. My tech stack: React.js · React Native · JavaScript · TypeScript · PHP · Drupal 9/10 · WordPress · Webflow · Framer · Tailwind CSS · HTML5/CSS3 · REST APIs · MySQL · PostgreSQL · Git What you always get when you work with me: ✔ Clean, readable code that's easy to maintain ✔ Fully responsive design on all devices ✔ Clear communication and daily updates ✔ On-time delivery — no excuses ✔ Performance-optimized builds ✔ Support even after the project is done I care about your product as much as you do. Whether it's a simple landing page or a full web application — I'll build it right. Send me a message. I usually reply within a few hours.

Experienced Full-Stack Developer & IT Infrastructure Specialist with 10+ years of hands-on expertise in web application development, cloud infrastructure, network security, and enterprise server administration. I help businesses design, deploy, secure, and maintain scalable solutions that improve operational efficiency and business continuity. Core Technical Expertise Mobile & Web Development • Ionic Framework (Hybrid Mobile App Development) • Angular (Enterprise Web Applications) • Laravel (Custom Web Applications & APIs) • REST API Development & Integration • MySQL Database Design & Optimization • Responsive UI/UX Development Cloud & DevOps • AWS Cloud Infrastructure • EC2, S3, RDS, Route 53, CloudWatch • Server Migration & Deployment • Backup & Disaster Recovery Planning • Performance Optimization & Monitoring Network Security & Firewall Management • Sophos Firewall Deployment & Support • Fortinet Firewall Configuration & Troubleshooting • VPN Setup (IPSec, SSL VPN, Site-to-Site VPN) • Network Security Hardening • Firewall Policy Management • Threat Prevention & Security Best Practices Windows Server Administration • Windows Server Installation & Maintenance • Active Directory Design & Management • Group Policy (GPO) Configuration • DNS, DHCP, File & Print Services • User & Access Management • Server Migration & Upgrades • Backup & Recovery Solutions What I Can Help You With: ✔ Ionic Mobile App Development ✔ Angular Frontend Development ✔ Laravel Backend Development ✔ AWS Cloud Setup & Administration ✔ Sophos Firewall Configuration & Support ✔ Fortinet Firewall Support & Troubleshooting ✔ Active Directory & Windows Server Administration ✔ VPN Configuration & Remote Access Solutions ✔ Server Performance Optimization ✔ Network Security Audits ✔ Infrastructure Monitoring & Maintenance ✔ Emergency Technical Support Why Clients Work With Me: • 10+ Years of Professional Experience • Strong Problem-Solving & Troubleshooting Skills • Reliable Communication • Security-First Approach • Fast Response Time • Long-Term Support Available • 24/7 Availability for Critical Issues and Infrastructure Support Whether you need a full-stack developer, cloud engineer, firewall specialist, or Windows Server administrator, I can provide end-to-end solutions tailored to your business requirements. I am committed to delivering secure, scalable, and high-quality results on time and within budget. Let's discuss your project and find the best solution for your business.

Hi! I'm a Certified Salesforce Consultant with 8+ years of experience architecting and implementing powerful, scalable, and user-friendly Salesforce solutions for businesses across industries and geographies. From Fortune 500 enterprises to fast-moving startups, I have helped clients unlock the full potential of Salesforce across its vast ecosystem including Sales Cloud, Service Cloud, Marketing Cloud, Commerce Cloud, Experience Cloud, CPQ, Field Service, Financial Services Cloud, Nonprofit Cloud, and more. Whether you're planning a new implementation, fixing a cluttered org, or need a trusted partner for ongoing innovation, I can help. What I Can Help You With: - Full-cycle Salesforce implementation & architecture - Data modeling, custom schema, and record-level security - Process automation with Flows, Process Builder, and Apex - Custom development with Apex, LWC, Aura, Visualforce - API and third-party integrations (Stripe, Shopify, Slack, Outlook, Mailchimp, Twilio, etc.) - Einstein AI features setup and training - Salesforce DevOps & CI/CD using DX, Git, Gearset - Data migration from legacy systems (Zoho, HubSpot, Dynamics) - Advanced dashboards, reporting, and analytics - AppExchange consulting or custom app development - Post-go-live support, enhancements, and maintenance Over the years, I have led various successful Salesforce projects across industries such as SaaS, healthcare, finance, e-commerce, and education. I pride myself on being more than just a developer. I am a strategic partner who understands business goals and translates them into scalable Salesforce solutions. Certifications & Tools: - Salesforce Certified Administrator - Salesforce Certified Platform Developer I - Salesforce Sales Cloud Consultant - Apex, LWC, SOQL, Visualforce - Jira, Confluence, Git, CI/CD tools - Agile & Scrum project delivery Clients often describe me as proactive, responsive, and easy to work with. I communicate clearly, hit deadlines, and bring a deep understanding of both the technical and business sides of CRM. Ready to take your Salesforce org to the next level? Let’s connect and build a solution that empowers your team and drives results.

I am a full stack web developer with over 20 years of experience building robust, scalable, and high-performing applications. I am passionate about clean, maintainable code and delivering top-tier service to my clients. ✅ Backend Development: - Expert in Python (FastAPI), PHP (Laravel, PHP8), PostgreSQL, MySQL, and MongoDB. - Experienced in building REST APIs and microservices architectures for modern web applications. - Skilled in database architecture, optimization, and high-performance systems. ✅ Frontend Development: - Proficient in building dynamic and responsive interfaces using React, Next.js, Bootstrap 4/5, and TailwindCSS. - Extensive experience with Single Page Applications (SPAs) and implementing pixel-perfect designs. -Familiar with modern build tools such as Gulp and Webpack for optimized asset management. ✅ WordPress Development: - Developed numerous custom WordPress themes and plugins, ensuring clean, scalable, and responsive design. - Adept at creating custom post types, Advanced Custom Fields (ACF), and WooCommerce integrations, including payment solutions (Stripe, PayPal, Authorize.net). ✅ DevOps & Cloud Services: - Experienced with AWS (EC2, S3, RDS, ECR, etc.) for cloud deployments, along with Linux server administration. - Strong knowledge of CI/CD pipelines and Docker for seamless development and deployment workflows. ✅ Technologies I work with daily: - PHP 8, Python, Ruby on Rails, Node.js - PostgreSQL, MySQL, MongoDB - HTML5, CSS3/SCSS, JavaScript, ES6, TypeScript - React, Next.js - jQuery - WordPress, WooCommerce I thrive in challenging environments where quality, efficiency, and performance matter. Let’s work together to turn your project into a success!

I help teams build, stabilize, and operate production SaaS applications without disrupting users or revenue. If your Rails application is already live, costing too much to run, difficult to change safely, or needs new features without breaking existing workflows, I can take ownership and move it forward in a controlled, reliable way. I’m a senior full-stack engineer who works end to end across backend systems, infrastructure, payments, and AI integrations. My focus is not just shipping code, but reducing operational risk, improving reliability, and making sure the system is easy to maintain as it grows. Alongside traditional SaaS work, I build AI-powered features and agents that are designed for real production use. That includes white-label AI integrations, internal automation tools, and task-specific agents with guardrails, logging, and cost controls. I treat AI as part of the system, not a novelty or bolt-on. A common engagement for me is stepping into an existing Rails application and owning it. That may involve fixing production issues, improving performance, cleaning up deployment workflows, integrating payments, or modernizing infrastructure. I also frequently help teams move off Heroku to more cost-effective platforms such as Hetzner or AWS using Docker and Kamal, with a focus on zero downtime and long-term operability. Before software, I spent nearly 20 years in dealership and retail operations. That experience shapes how I work today. I understand revenue systems, customer impact, and why clarity and stability matter just as much as technical elegance. ⸻ What I Help Clients Achieve • Stabilize and maintain production Ruby on Rails applications • Ship new features safely into existing systems • Reduce infrastructure costs without downtime • Own payments, subscriptions, and marketplace flows • Integrate AI features that reduce manual work and improve UX • Improve performance, reliability, and background processing • Act as a fractional senior engineer for small teams ⸻ AI & Automation Capabilities • AI agents embedded inside SaaS products • White-label AI features integrated into existing platforms • Deterministic workflows around LLMs with validation and safeguards • AI-assisted reporting, content generation, and internal tooling • Integration with OpenAI, Claude, and local models • Logging, monitoring, and cost control for AI systems ⸻ Technical Focus • Ruby on Rails • Turbo, Hotwire and Stimulus • PostgreSQL and MongoDB • Docker and Kamal • Stripe subscriptions and marketplace payouts • Cloud deployments and production operations • Background jobs and async processing ⸻ How I Work I’m comfortable stepping into unfamiliar codebases, understanding how things actually work, and improving them without risky rewrites. I prefer small, safe changes, clear communication, and systems that are easy to reason about months later. I work well asynchronously, communicate clearly, and take ownership rather than needing constant direction. Clients typically bring me in when they want someone senior who can be trusted with production. I’m based in the US and work overlapping US business hours, which makes collaboration, reviews, and production support much smoother. If you need a reliable engineer who treats your product like a real business system, I’m happy to help.

If you're building DeFi infrastructure, a Solana protocol, or a high-performance blockchain system — and you need it done right the first time — read on. I'm Anuj, a Rust blockchain engineer with 12+ years of engineering experience and 6+ years shipping production Rust systems that handle real transactions, real money, and real scale. Not side projects. Not tutorials. Production mainnet systems. Here's what I've actually built: — Substrate-based L1 blockchain nodes with custom consensus and p2p networking — MPC-based distributed signing and MultiSig wallet infrastructure — Cross-chain indexers processing high-throughput block and transaction streams — Solana programs, RPC integrations, and on-chain analytics pipelines — gRPC microservices, async Tokio APIs, and RocksDB storage layers — Full production deployments on AWS, Docker, Kubernetes with Prometheus monitoring Previously: 7 years at Antier Solutions building blockchain infrastructure. Contract work for Satschel Inc, Texas — a US FinTech company building distributed financial systems. My clients don't come back because I'm cheap. They come back because the systems I build don't break. If you have a serious blockchain or DeFi infrastructure challenge — let's talk.