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I help founders and product teams ship high-quality software quickly when the cost of sloppy delivery is too high. I am a senior full stack developer and hands-on software architect with 20 years of experience across SaaS, web, mobile, DevOps, databases, AI, and product engineering. I can lead a team, pair with your existing developers, or work entirely independently from elicitation through production delivery. I am strong at elicitation and continuous communication. I can take an unclear product goal, extract the real requirements, keep the feedback loop tight, and turn ambiguity into small testable decisions. My default way of working is XP: TDD, BDD, small releases, CI/CD, automated checks, and clear acceptance criteria. I use AI agents heavily inside that engineering loop. With agents, I can multiply my implementation speed many times while still keeping the work grounded in tests, specs, review gates, and evidence that the behavior is correct. Thousands of tests are no longer an enterprise luxury. With the right architecture and agent workflow, they are one of the fastest ways to keep delivery speed high. I work by the scientific method: identify the riskiest assumption, make it testable, run the smallest useful experiment, and let evidence drive the next step. The goal is production-ready software: maintainable code, real tests, deployment discipline, data safety, and behavior that can survive real users. A proof-of-concept is useful only when it proves the path toward that standard. Recent relevant work: - Software architect for an online fitness platform, with feature delivery and technical leadership for backend and web developers. - Public PostgreSQL tooling for schema diffing and migration parity. - XP-style CI/CD for a TypeScript MCP/reporting service, including tests, coverage, hardening checks, contract review, prompt/tool evaluation, deployment, and live verification. - Actor-based high-load architecture and media delivery/storage architecture work. - AI prompt evaluation and test harness work for healthcare SaaS. Good fit for: - fractional CTO / architecture review - TypeScript, Node.js, React, PostgreSQL - AI-assisted development with real tests and guardrails - legacy modernization, delivery stabilization, CI/CD, and testing strategy If you want fast software delivery with engineering discipline behind it, I can help.

🏆 𝗖𝘂𝘀𝘁𝗼𝗺 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 & 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗪𝗲𝗯, 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 | 𝗙𝗼𝘂𝗻𝗱𝗲𝗿 𝗼𝗳 𝗭𝗮𝗸𝗖𝗼𝗱𝗲𝗫 𝗟𝗧𝗗 I'm Zakawat Abbas, Founder & CEO of ZakCodeX LTD, a UK software development company that helps startups, SMEs, and enterprises build custom software, AI-powered applications, SaaS platforms, mobile apps, and scalable web solutions. My team delivers complete software solutions, from product strategy and UI/UX design to development, cloud infrastructure, deployment, and long-term support. We focus on writing clean, scalable code that grows with your business rather than creating quick fixes that need rebuilding later. ⚡ 𝗪𝗲'𝗿𝗲 𝗮 𝗴𝗿𝗲𝗮𝘁 𝗳𝗶𝘁 𝗶𝗳 𝘆𝗼𝘂'𝗿𝗲 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴: ● "I need a reliable software development partner who can own the project from start to finish." ● "I want to build an MVP that can scale into a successful SaaS business." ● "I need AI integrated into my application or business workflow." ● "I need experienced developers for both frontend and backend." ● "I want secure, scalable software built with modern technologies." ● "I need long-term technical support after launch." 💻 𝗖𝘂𝘀𝘁𝗼𝗺 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Custom business software, SaaS platforms, CRM systems, ERP solutions, internal dashboards, workflow automation, enterprise applications, REST APIs, GraphQL APIs, third-party integrations, and cloud-native software built for long-term scalability. 🌐 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 High-performance web applications using React.js, Next.js, Node.js, Laravel, Python, FastAPI, and modern cloud infrastructure. We build SEO-friendly, secure, scalable websites and web applications optimized for performance and user experience. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Cross-platform mobile applications using React Native and Flutter for iOS and Android. We develop consumer apps, enterprise applications, booking platforms, ecommerce apps, healthcare solutions, AI-powered mobile apps, and startup MVPs. 🤖 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Generative AI, OpenAI integration, Claude AI, AI chatbots, business automation, machine learning, natural language processing, computer vision, intelligent workflows, AI assistants, and custom AI-powered business solutions. 🎨 𝗨𝗜/𝗨𝗫 𝗗𝗲𝘀𝗶𝗴𝗻 Modern user interfaces designed in Figma, including UX research, wireframes, prototypes, design systems, and developer-ready UI for web and mobile products. 🛒 𝗘𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 Custom ecommerce platforms, Shopify, WooCommerce, payment gateway integration, inventory management, API integrations, and conversion-focused online stores. 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 ◉ Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS, HTML5, CSS3 ◉ Backend: Node.js, Express.js, Laravel, Python, Django, FastAPI, PHP ◉ Mobile: React Native, Flutter, Android, iOS ◉ AI: OpenAI API, Claude AI, GPT, Machine Learning, NLP, Computer Vision ◉ Cloud: AWS, Docker, Vercel, DigitalOcean, Firebase ◉ Databases: PostgreSQL, MySQL, MongoDB, Firebase ◉ APIs: REST API, GraphQL, Stripe, PayPal, Third-Party API Integration 🔢 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝗺𝗲 ✅ Founder & CEO of ZakCodeX LTD, UK software development company ✅ Complete product development from idea to launch ✅ Modern AI-first software development approach ✅ Clean, secure, scalable, production-ready code ✅ Transparent communication and on-time delivery ✅ Long-term technology partner focused on business growth 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀: • Healthcare • Real Estate • Ecommerce • AI • SaaS • Legal • Education • Travel • Hospitality • FinTech • Logistics • Startups • Enterprise Software 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: • Custom Software Development • Full-Stack Developer • Web Development • Mobile App Development • AI Development • Generative AI • AI Chatbots • React Developer • Next.js Developer • Node.js Developer • Python Developer • React Native Developer • Flutter Developer • SaaS Development • CRM Development • API Integration • AWS • Shopify Development • UI/UX Design • Ecommerce Development • Business Automation • MVP Development • OpenAI Integration • Claude AI • Machine Learning

A skilled software engineer with 6 years of experience in fintech and e-commerce, delivering consistent success in both sectors. Excited to contribute to your team and help drive your goals forward.

📝 Overview: 🧪 Passionate and detail-oriented QA Tester with hands-on experience in manual and automated testing of web and mobile applications. I specialize in identifying bugs, improving user experience, and ensuring that your application works flawlessly across all platforms and use cases. With a strong foundation in test planning, test case creation, and defect tracking, I work closely with developers and stakeholders to ship bug-free, user-friendly software that meets business goals. 🔍 Core Competencies: ✅ Manual Testing: ⚡Functional, Regression, Smoke, Sanity, UI/UX, and Cross-browser testing ⚡Writing clear and comprehensive test cases ⚡Bug reporting using Jira, Trello, or ClickUp ✅ Automation Testing: ⚡Selenium WebDriver for web testing ⚡Basic scripting with Java/Python ⚡TestNG, Maven, JUnit for automation frameworks ✅ Mobile App Testing: ⭐Testing Android and iOS apps on real devices and emulators ⭐Compatibility, UI, and performance testing ✅ API Testing: ⚡Testing REST APIs using Postman ⚡Validating request/response, status codes, and edge cases ✅ Tools & Platforms: ⭐Jira, Bugzilla, TestRail, Postman ⭐Selenium, JUnit, TestNG (basic level) ⭐BrowserStack, Android Studio, Xcode ⭐Git/GitHub for version control 🎯 Why Choose Me? ✔️ Detail-oriented and committed to delivering high-quality, reliable test coverage ✔️ Excellent communication and reporting skills ✔️ Collaborative mindset—comfortable working in Agile teams ✔️ Strong documentation and bug tracking ✔️ Quick learner, always up-to-date with new tools and QA trends 🧰 Tech Stack Summary: 🚀 Testing Types: Functional, Regression, Smoke, Sanity, UI, API 🚀 Tools: Selenium, Postman, Jira, Trello, TestRail 🚀 Languages: Java (basic), Python (basic), SQL (queries for DB validation) 🚀 Platforms: Web, Android, iOS 🚀 Automation (basic): Selenium WebDriver, TestNG, Maven Let’s work together to improve your software quality, reduce production bugs, and deliver a better user experience. 🛠️ 📩 Message me today to discuss your QA needs.

Are you looking to build a high-performance SaaS platform, automate a complex supply chain, or integrate secure, production-ready AI into your business workflow? Many developers can write code, but very few understand how to seamlessly blend cutting-edge AI/ML systems with scalable, enterprise-grade architecture while ensuring strict data security (HIPAA, PCI-DSS). I am a Full-Stack Developer and AI/ML Engineer with extensive experience architecting end-to-end solutions for SaaS, Supply Chain, Healthcare (HIS/HMS), and custom ERP systems. Whether you need to build an MVP from scratch or scale an existing enterprise platform, I deliver clean, maintainable code and robust infrastructure. 🚀 Core Expertise & How I Can Help You: AI/ML & GenAI Integration: Building intelligent RAG systems, custom chatbots, and LLM-powered workflows using OpenAI, Anthropic, LangChain, and Vector Databases (Pinecone, Qdrant). Robust Backend & Architecture: Designing secure, high-throughput microservices and APIs using Node.js (NestJS), Python (FastAPI/Django), and PHP, backed by PostgreSQL, MongoDB, or Redis. Modern, Responsive Frontends: Crafting seamless web and mobile interfaces using React, Next.js, Angular, Vue.js, and React Native. Cloud, DevOps & Compliance: Deploying production-ready applications on AWS/GCP/Docker with CI/CD pipelines, keeping security and regulatory standards (HIPAA, GDPR) at the forefront. 🛠️ Technical Snapshot: Frontend: React, Next.js, Angular, Vue.js, React Native, Tailwind CSS Backend: Node.js (NestJS/Express), Python (FastAPI/Django), PHP, Java AI/ML: LLMs, LangChain, Vector DBs, Prompt Engineering, RAG Systems Cloud & Databases: AWS, GCP, Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, Redis Let’s build something scalable. Click the "Invite to Job" or "Hire" button on the top right, and let’s discuss how we can bring your project to life.

I build serious software for people who need it done properly. I bring 13+ years of experience across backend engineering, AI systems, automation, DevOps, systems programming in C, and scalable web architecture. I work best on projects where correctness, performance, reliability, and clean design actually matter. I am not here to sell buzzwords or inflated promises. I build software that works in the real world, under real load, with real constraints. My work usually fits into three areas: AI, LLMs, and Automation RAG systems, embeddings, vector search, and document pipelines FastAPI and Python backends for AI products Custom AI agents, workflow automation, and internal tooling AI features that are production-ready, not just prototypes Inference pipelines, GPU-aware environments, and performance-minded setups Systems Programming and Deep Technical Work C programming for low-level tools, utilities, and performance-critical components OS-style thinking, debugging, and under-the-hood problem solving Linux and macOS internals, networking, process-level behavior, and system design Engineering work where deep technical understanding matters more than surface-level development Web Platforms, Backend Engineering, and DevOps Laravel, PHP, Node.js, Vue, TypeScript, Python API design, backend architecture, and scalable SaaS systems Docker, Kubernetes, CI/CD, infrastructure automation, and self-hosted environments Building stable platforms that remain maintainable as they grow What clients usually get from me: strong technical judgment clean, maintainable implementation clear thinking around architecture and tradeoffs fast understanding of complex systems someone who can work independently without constant hand-holding I enjoy difficult projects. Especially the ones where the problem is messy, the system is fragile, or the solution needs real engineering instead of another quick patch. If you need someone who can build across AI, backend, systems, and infrastructure with depth and seriousness, I am a strong fit. GitHub: @sharik709