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OSCP & CREST-certified Penetration Tester helping SaaS companies, startups, e-commerce platforms, and enterprise teams find real, exploitable security weaknesses before attackers do. I provide manual-first penetration testing for Web Applications, APIs, Mobile Apps, Networks, Active Directory environments, Infrastructure, and Thick Client/Desktop Applications. My focus is not just finding vulnerabilities, but validating real-world exploitability, explaining business impact, and giving your developers clear remediation guidance they can actually apply. 🔎 Core services I provide: • Web Application Penetration Testing • API Security Testing • Mobile Application Penetration Testing for Android and iOS • External Network Penetration Testing • Internal Network & Active Directory Security Assessment • Thick Client / Windows Desktop Application Testing • OWASP Top 10 & OWASP WSTG-Based Security Testing • Vulnerability Assessment & Manual Validation • OSINT & External Attack Surface Assessment • Security Retesting & Remediation Validation • SOC 2, ISO 27001, PCI DSS, Amazon SP-API, and compliance-oriented pentest reports 📄 What you receive: • A professional penetration testing report • Clear proof-of-concept evidence and screenshots • Technical explanation of each vulnerability • Business impact written in simple, practical language • Severity rating and CVSS scoring where applicable • Step-by-step remediation guidance for developers • Retest results after your team applies fixes • Executive summary suitable for management, compliance, vendor review, and internal audit ⚡ My testing approach: I perform Black Box and Grey Box penetration testing depending on your project requirements. I use a manual-first methodology supported by professional tools such as Burp Suite Pro, but I do not rely only on automated scanners. The goal is to identify security issues that matter in real attack scenarios, including authentication flaws, authorization bypasses, SQL Injection, IDOR, access control issues, business logic vulnerabilities, API security weaknesses, injection flaws, misconfigurations, and sensitive data exposure. 🎯 Best fit if you need: • A security test before launching a product or major feature • A web application, API, mobile app, network, or infrastructure assessment • A compliance-ready report for SOC 2, ISO 27001, PCI DSS, vendor review, or investor due diligence • Manual security testing focused on real exploitability • Clear communication with practical remediation advice • Reliable retesting after fixes are completed 🏆 Certifications and experience: • OSCP • OSEP • OSWP • CREST CPSA • Top Rated in Information Security / IT Compliance • Ranked in the Top 50 in multiple bug bounty programs • Completed 500+ penetration tests and security assessments • Available across different time zones • Open to one-time assessments and long-term security engagements ✅ Need a professional penetration test or vulnerability assessment for your web application, API, mobile app, network, or infrastructure? 📩 Send me a message, and I will help you define the right scope, testing approach, timeline, and deliverables for your security goals.

I help startups and businesses build AI-powered SaaS platforms, marketplaces, and automation systems that reduce manual work and scale operations fast. I build production-ready web and mobile applications by combining 19+ years of hands-on development experience with AI-powered tools like Claude—shipping faster without compromising code quality, architecture, or UX. I also specialize in transforming outdated web apps into modern, AI-driven platforms with a clean, maintainable architecture so you’re not dependent on developers. for every small change. You’ll be able to handle minor updates yourself using AI tools like Codex or Claude. If you're looking for someone who understands both technology AND business outcomes, you're in the right place. 🚀 Core Expertise: AI-powered SaaS platforms Marketplace development (buyer/seller/admin systems) Business process automation Scalable backend architecture Custom dashboards & admin panels 🧠 How I Help You Whether you're launching an MVP or scaling an existing product, I can help you: ✅ Build your SaaS product from scratch ✅ Automate repetitive workflows using AI ✅ Develop secure and scalable backend systems ✅ Create seamless web & mobile applications ✅ Improve performance and reduce operational costs ⚙️ Tech Stack (Only What Matters) Mobile Application Development: We develop hybrid / cross-platform mobile applications using React Native CLI / EXPO, REDUX, and Flutter / Dart. PWA/progressive web application (React.js). Web Application Development: Full-Stack Development, Front-End Development, Back-End Development. MVP Development. SaaS development, Multitenancy Product Development. E-commerce & Social Media Websites. Front End Development: TypeScript, React.js, React remix, vite.js, Next.js, Vue.js, Nuxt.js, Tailwind CSS Back-end Development: Python (Django / flask / FastAPI), PHP (CodeIgniter / Laravel), Node.js (typescript), Express.js, Nest.js, fastify, Strapi Database: MongoDB, MySQL, PostgreSQL, SQLite, Amazon Redshift, MariaDB, AWS DynamoDB Tools & Technologies: Bitbucket, GitHub, Firebase, Websocket, Redis, Nginx, EC2, S3, RDS, and EBS (Elastic Block Store). 🤝 Let’s Work Together If you’re looking for: A reliable long-term developer Someone who understands business, not just code Fast execution with scalable architecture 👉 Let’s discuss your project. My experience spans various domains, as outlined below. 1. Asset management system: a web application and mobile applications for iOS and Android. 2. Location live tracking and WiFi data scanning: a web application and mobile applications for iOS and Android. 3. Habit-tracking mobile application for iOS and Android. 4. Retreat and hotel booking engine: Web Application. 5. Ticket booking system with live seat selection: web application. 6. Shipping container calculator: web application. 7. Job board mobile application and web application. 8. SaaS for hospital care and home care companies: web application and mobile application. 9. Courses booking system: A web and mobile application along with a scheduling system. E-Learning PWA: Learning languages and mobile app development. 10. SaaS for project management and task management. 11. Boutique hotel and retreat website designing. 12. Equipment rental e-commerce website development. 13. Event posting and chat system: mobile application development. 14. Development of a Bible reading mobile application with a subscription system, supporting Apple and Google Pay. 15. Dummy flight and hotel ticket booking website for visa applications. 16. SaaS for creating surveys and managing user responses. 17. Real estate website development with MLS grid integration. 18. SaaS for companies managing work assignments, customer invoicing, and task calendars. 19. Food delivery Mobile application. 20. Facebook Graph API, Instagram Graph API, Twitter API, and LinkedIn API data management. 21. Dating website development. 22. Classified listing website development. 23. Travel deals e-commerce website 24. Grocery delivery mobile application development. 25. E-commerce website for selling fine wines. 26. CV and resume creation web application. 27. Employee payroll management web application. 28. Loan management system web application. 29. scheduling system for booking home inspection appointments along with a payment gateway and connection with gohighlevel CRM. 30. revenue management system – pulls data from QuickBooks, the Mercury API and the Stripe API and calculates the revenue. 31. car and bike parts / equipment / marketplace / vendor-buyer concept. 32. SMS marketing system that is connected with Twilio 33. Developing an MVP using AI-based web application builders such as Lovable, Replit, Claude AI, Claude-assisted development and Cursor AI. Please send a message OR invite me to your job so we can schedule a Zoom meeting.

I first discovered my passion for programming when I was 12yrs old after getting a book to learn C++ in 21 days. I'm grateful to have gotten such a start as the lessons I learned then both in programming and object oriented design have stayed with me through my entire journey. Eventually I moved on to learn other languages like Visual Basic, Liberty Basic, Python, PHP, JavaScript, Lua, Java, etc., etc. I programmed primarily as a hobbyist for about 16 years working on projects that interested me that I could learn from until I finally broke into the industry professionally in 2016. I started as a web developer and was quickly moved up to a SR Engineer as my experience clearly shined through. I had the privilege of getting to learn and work on a large team of developers that followed a strict dev ops process to ensure that we worked together to deliver on excellence. Since 2016 I have specialized in NodeJS applications. Mostly on a MEVN stack (Mongo, Express, VueJS, Node) using NuxtJS for the front-end and MoleculerJS Microservices for the backend. I am well versed with this stack and every part of the development process that it entails. I can help you plan, build and deliver your next business application or project all the way from gathering requirements to actually implementing the solution. I work quickly and efficiently and deliver quality solutions that stand the test of time. My longest running software in production so far actually had an 8 year run (it was a simple JavaScript UI for expediting note taking and troubleshooting for Medtronic Diabetes pump support specialists, they just retired it last year for something that fully integrates with SAP). I consider myself an especially great asset to startups and small-medium sized organizations due to my wide range of experience and my ability to perform in various roles surrounding software engineering. Not only can I help you develop an amazing business solution, but I can help your team implement and follow a proper dev ops process and teach them to achieve success.

➡️ 12 years in startups ➡️ $25 million acquisition ➡️ Led marketing ➡️ Led operations ➡️ Now leading technology ➡️ Head of a team of 5 extremely talented, hand-picked developers I started my career as the non-technical cofounder of multiple startups. After my third project was acquired (we developed a video baby monitor with breath detection), I took the opportunity to solve the #1 problem that had plagued me through my first endeavors--unreliable communication and delivery from my technical cofounders, employees and contractors. I spent several years learning how to be my own technical co-founder and build now on a stack of React Native for the front end and Xano for the back end. In addition to guiding clients on how to most efficiently invest in their tech products, I also offer unlimited marketing and operations consulting at no additional cost because the more successful my clients are, the more successful I am. While doing work for a limited number of clients, I also have working on my own projects a small team of developers I hand-picked from the tech scene in Ecuador where I spend part of the year. Great news for my clients because I can scale up and scale back technical development on demand and have access to advanced expertise in security, LLMs, data science, etc.

🎯 I build things that actually work when real users show up. 🎯 12 years in coding, 9 years on Bubble io, 100+ projects shipped — SaaS platforms, AI-powered web apps, role-based systems, ecommerce builds, MVP launches, and everything in between. I know the platform well enough to know what it handles natively, when to bring in an API, and where most developers cut corners. On the AI side I integrate OpenAI directly into Bubble apps — chatbots, automated workflows, RAG pipelines that pull accurate answers from your own data, and AI agents that actually do something useful. I've also built complex automation stacks with n8n, Airtable, Zoho, and Twilio for lead capture, CRM routing, and workflow automation. I work in clear milestones, communicate without the fluff, and can usually get a working prototype in front of you fast — so you see progress before you commit to the full build. If you're looking for a Bubble developer who's done this hundreds of times and won't waste your time — let's talk. SEO: 🎯 I design and build AI-powered Bubble web applications, automation systems, and scalable bubble apps that help businesses launch faster and operate more efficiently. Expert bubble io developer with 9+ years of experience creating bubble io saas build platforms, bubble io marketplace solutions, internal tools, and bubble mvp projects. I specialize in combining no-code speed with real engineering thinking to deliver production-ready bubble no code systems using Bubble, AI models, and scalable backend logic. If you need an experienced bubble expert — you're in the right place. ✅ I have developed 100+ applications, from early-stage bubble prototype projects to complex bubble io web applications supporting real users, workflows, and business operations. 💡 What I build ⚡ End-to-end custom bubble app development (UI, backend logic, database, workflows) 🚀 Bubble mvp & rapid bubble prototypes for startups 📦 Bubble io saas build, bubble io marketplace, bubble io crm build, bubble io social network 🎨 Responsive bubble website creation with stunning UIs 🤖 Bubble ai features — GPT, Claude, Gemini, bubble ChatGPT integrations 🔗 Bubble api integrations (Stripe, Twilio, Meta, custom systems) ⚙️ Bubble plugins & automation via n8n, Zapier, Make 📈 Scalable bubble io development architectures optimized for growth ⚡ AI-driven development style My process is AI-enhanced — I use Lovable and modern AI tools to accelerate bubble io development and deliver bubble no code features faster. As a no-code developer and AI engineer, I integrate OpenAI GPT and Anthropic Claude directly into bubble apps for automation, smart workflows, and bubble ai-powered experiences. 🧠 🎓 Technical foundation 📌 Degree in Computer Science 📌 Master's in Software Engineering 📌 Strong background in JavaScript, Java, PHP, Angular, MySQL — including magento developer-level backend thinking This allows me as an experienced bubble io developer to handle complex logic, architecture decisions, and advanced bubble api integrations beyond standard no-code limitations. 🎯 How I deliver value ✔️ Build bubble io apps that are clean, structured, and scalable ✔️ Turn ideas into working bubble mvp projects quickly ✔️ Combine bubble ai + bubble no code for faster product execution ✔️ Performance tuning bubble and bubble io best practices on every project ✔️ Communicate clearly and work in a product-focused way 🌍 Experience working with international startups across the US, UK, and Europe on bubble io saas build, bubble ai tools, bubble io marketplace, and automation platforms. 💬 I help teams move from idea → bubble prototype → scalable bubble io web application using AI-first development and modern no-code engineering. 🏆 Bubble io Developer | Senior Bubble io Engineer | Bubble Expert | No-Code Developer | AI Engineer | AI Chatbot Developer | AI Automation Engineer | Full Stack Developer | Mobile App Developer | Bubble MVP Specialist | Magento Developer | No code developer

🌐🚀 MVP / SAAS Specialist Expertise in | AI Developer | RAG | LLM | AI Integration | Python | OpenAI API Integration | Artificial intelligence | Machine Learning | Langchain | Django React JavaScript | FastAPI | AI agent | AI App Development | AI bot | AI chatbot | AI Agent | Restful API | PostgresSQL | Botpress | PostHog | MCP Server | Multi-Agents/Multiple Agents | Voice AI 🔑 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲 𝐜𝐮𝐬𝐭𝐨𝐦 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, AI-Powered MVP, AI Healthcare Tools, AI Writing Tool, GPT Clone, Full Stack Application, Multi-Tenant 𝐚𝐧𝐝 𝐢𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬, 𝐜𝐫𝐞𝐚𝐭𝐞 𝐧𝐞𝐰 𝐯𝐚𝐥𝐮𝐞, 𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬. 🎁 A 100% refund, if I'm unable to meet our agreed commitments. No questions asked! 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬: 🧑‍💻 8+ years of experience as a Full Stack Developer and Artificial Intelligence Specialist 🚀 50+ market-winning projects launched ⌛ Around 600 hours on Upwork 🎯 Top-Rated on Upwork 🌉𝐈'𝐯𝐞 𝐬𝐨𝐥𝐯𝐞𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬 𝐟𝐨𝐫 𝐭𝐨𝐩 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐚𝐧𝐝 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐫𝐨𝐮𝐧𝐝 𝐭𝐡𝐞 𝐠𝐥𝐨𝐛𝐞 ☑️ Under Armour ☑️ Snowflake ☑️ Estateza ☑️ SearchLook ☑️ Sparrowcharts 💡 𝐖𝐡𝐚𝐭 𝐜𝐚𝐧 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐭𝐚𝐛𝐥𝐞? ☑️ Full Stack Development for robust and scalable web applications, including both front-end and back-end technologies ☑️ Custom Web and Application Development utilizing frameworks like Python, React, Django, React.js / Angular / Next.js / Nest / Nust / Golang and Node.js ☑️ Expertise in LLMs and ChatGPT integration to enhance application functionalities ☑️ Proficiency in RESTful APIs, GraphQL, and database management ☑️ Experience with cloud services like AWS, Azure, and Google Cloud for deployment and scaling ☑️ Strong problem-solving skills and ability to optimize user experiences and application performance 🌟𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐚𝐯𝐞 𝐭𝐨 𝐬𝐚𝐲 𝐚𝐛𝐨𝐮𝐭 𝐦𝐞: 🌟 Ali Hamza is in the top tier of software developers and data engineers. He is far more than an implementer; he is a strong architect. During this project set, Usama worked on data from major US corporations 🌟 One of the best developers I have ever worked with. He is always on time and does exactly what he says he will do. I could not recommend him enough. 🎯 𝐈 𝐩𝐨𝐬𝐬𝐞𝐬 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐝𝐨𝐦𝐚𝐢𝐧𝐬 ☑️ Full Stack Development: ☑️ Backend: ☑️ Python ☑️ Django ☑️ Flask ☑️ NodeJs, Express.js ☑️ Rest API, SOAP ☑️ Websocket ☑️ Third party integration ☑️ Frontend: ☑️ Html5, Css3, Bootstrap ☑️ Javascript ☑️ ReactJs, Angular ☑️ VueJs ☑️ NextJs, NuxtJs ☑️ Ajax, JSON, XML, XHTML, SVG, Canvas ☑️ API integration, OpenAI API ☑️ DevOps: ☑️ CI/CD Pipelines ☑️ IaC ☑️ Docker ☑️ Kubernetes / Terraform ☑️ Elasticsearch ☑️ Cloud Computing (Azure, AWS, Google Cloud) ☑️ Version Control (Git, GitHub) ☑️ Containerization + Orchestration (Docker, Kubernetes) ☑️ Spring Boot / Java, Microservices Architecture ☑️ Real-time / Streaming / Event-driven architectures ☑️ Session Recordings / Session Replays ☑️ GraphQL / gRPC ☑️ Kafka / Redpanda (real-time streaming) ☑️ Generative Artificial Intelligence (GenAI) ☑️ Large Language Models (LLMs) ☑️ Natural Language Processing (NLP) ☑️ ChatBots and Virtual Assistants ☑️ Text to Image Modelling ☑️ Vector Databases ☑️ Retrieval-Augmented Generation (RAG) ☑️ ChatGPT ☑️ OpenAI ☑️ AI/ML (Artificial Intelligence + Machine Learning) ☑️ Multimodal AI / NLP ☑️ Agentic AI / Autonomous Agents ☑️ “Vibe Coding” / AI-first / prompt-driven dev workflows ☑️ Explainable AI / Ethical, Sustainable AI ☑️ Edge AI / On-device / Federated Learning ☑️ Web Scraping ☑️ Data Extraction ☑️ Data Scraping ☑️ Scrapy ☑️ Selenium ☑️ Beautiful Soup ☑️ Requests ☑️ Deployment and scheduling the scraping scripts on server ☑️ PostHog / Mixpanel / Amplitude / Segment (Twilio Segment) ☑️ OpenTelemetry (Datadog / Grafana / Sentry ☑️ LaunchDarkly / GrowthBook / VWO / Optimizely / Klaviyo ☑️ Airbyte / Fivetran / DBT ☑️ Auth0 / Clerk / SuperTokens / Google Auth ☑️ Stripe / Paddle ☑️ Plaid AI + Analytics Integrations ☑️ LangSmith / LangFuse – Observability and evaluation layer for LLM apps. ☑️ Weaviate / Pinecone / Qdrant – Vector DBs for AI features with analytics hooks. ☑️ Whylabs / Arize AI – ML observability & monitoring (similar to PostHog but for models). I am a Fullstack AI Developer - Python Django, React, Flask, API Integration I can help you to build: ⚡ Fast MVP Development (AI-Powered) ✅ ⚡ AI Powered SAAS Applications ✅ ⚡ AI Agent RAG Systems | AI Chatbots ✅ ⚡ Open AI API Integrations / LLM ✅ ⚡ Full stack Development (AI/ML, Django, React) ✅ ⚡ AI Workflows Automation ⚡ Voice AI tools Thank you for visiting my profile. Looking forward to working with you! I will 💲REFUND 💲, if your expectation wont meet. For reference, you can see my work and testimonials below. Lets Chat!