𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐈𝐝𝐞𝐚𝐬 𝐢𝐧𝐭𝐨 𝐒𝐢𝐭𝐞𝐬 With 20 years of experience in software development, I offer a comprehensive skill set encompassing PHP, Java, and make.com. My expertise extends to DevOps Practices, ensuring seamless application deployment and management. In the database realm, I have extensive with MySQL, PostgreSQL and MongoDB, enabling efficient data management. I also bring proficiency with a range of additional tools and frameworks: - PHP : Mastery of Laravel, CodeIgniter, Zend, Symfony, Yii, CakePHP, Drupal, Joomla, OpenCart, CSCart, Prestashop - Java : Spring, Hibernate, Grails, Play Framework, Vaadin, JSF, Dropwizard, Vert.x - Databases : Expertise in designing, optimizing, and managing complex database systems, ensuring data integrity and performance. - DevOps : Proficient in CI/ CD pipelines, Docker and Kubernetes to streamline development and deployment My unwavering commitment to delivering high quality solutions, coupled with my extensive knowledge of tools and frameworks, positions me as the ideal candidate for any projects. Regards, Pierre.

I'm a full stack engineer, strongest on the backend and DevOps side, but I ship frontends too. Four years at Novomind, a German enterprise software company, working across four product teams in Java, Spring Boot, Angular, and Vue. A few things I've shipped recently: On the AI-HUB team at Novomind, I integrated Gemini, OpenAI, Neuroflash, and DeepL, and cut our CI/CD release time from 5-6 hours down to 1-2 by parallelizing the pipeline. On iMarket, I built the Angular frontend and REST APIs and integrated 9 marketplaces including Amazon, eBay, and Otto. Outside work, I built two systems from scratch: a warehouse management backend for a petroleum services company (Spring Boot, PostgreSQL, JWT, full audit trail), and SkillSouq, a freelance course marketplace with Stripe payments, Wise international payouts, and live video sessions. 90%+ test coverage on that one. If you need one person who can own a project end-to-end, schema, API, frontend, CI/CD, deployment, that's the kind of work I do best.

✨ Highly accomplished and top-rated Upwork developer with 15+ years of experience in Java/Android/Flutter/React Native/ React.JS /AI Integration. ✨ 11,000+ hours in hourly projects, 17,000+ hours in fixed cost projects. ✨ Developed 60+ mobile apps from scratch with backend. ✨ Deployed 15+ enterprise web applications on cloud services. ✨ Achieved 100% client satisfaction and consistently delivered top-quality results. ✨ Self-motivated, detail-oriented, punctual, and fast learner. ✨ Strong troubleshooting and debugging skills. ✨ Turn your idea/concept into reality with my expertise. ✨ Proficient in Node, Java, Spring Framework, JSF, EJB, JPA, Hibernate, Maven, Jetty. ✨ Skilled in Android SDK, React Native, Flutter, NDK, BT LE device integration, and performance improvement. ✨ Experienced in IOT, AR/VR, Machine Learning. ✨ Expertise in REST API, Web Service, XML, JSON, HTML5, Angular, Reactjs, Bootstrap. ✨ Integration with social platforms like Facebook, Twitter, Google+, Linkedin. ✨ Familiarity with cloud services like AWS, Google Cloud Platform, Azure and Firebase. ✨ Proficient in GPS, Location Based Services, Push Notification. ✨ Experienced in Payment Gateway integration: PayPal, ZooZ, Stripe, Braintree, Payfort. ✨ Familiar with project management tools: Asana, Basecamp, Git, SVN, Jira, Mantis, Trello, Slack.

Hi 👋🏻, I am Alan, a Senior Software Developer 💻. With over +7 years of experience 📖 in the software development industry. My experience 🧠 extends to leading projects and teams, demonstrating a proficiency that spans a variety of programming languages and technologies. I am on the lookout for challenging opportunities where I can apply my expertise to drive success in meaningful projects! Languages & Frameworks 🛠: • JavaScript, Java, Python, NodeJS, PHP, TypeScript. • HTML, CSS, SASS/SCSS, Bootstrap, Tailwind, JSF, XML. • Angular/AngularJS, Laravel, Spring Boot. Front-End Development 🖥: • Bootstrap. • Webpack, Selenium. • SEO. • Figma. Back-End Development ⚙: • RESTful APIs, Saas, Microservices. • Payment Integration, CMS, Analytics, Newsletters, Multilanguage, JWT. • MySQL, Oracle SQL, MongoDB, SQLite, MariaDB, Firebase Realtime Database, Oracle Database, Hibernate. • NodeJS, ExpressJS. • Sockets. • CI/CD. Cloud & DevOps ☁: • Docker. • Digital Ocen, Namecheap. • Amazon Web Services, Google Cloud. Software & Tools 🔎: • Git, GitHub, Bitbucket, GitLab. • Adobe Creative Suite, Microsoft Office, Microsoft Teams, Slack.

Senior Software Engineer (Technical Team Lead) with 11+ years of experience in telecommunications, fintech, eCommerce, and the software industry. Proven expertise in designing and delivering scalable solutions with a strong focus on innovation and performance. Holds a Bachelor's degree in Computer Science from the National University of Computer and Emerging Sciences. Backend Development: Java, Core Java, J2EE, Spring Boot Microservices, REST APIs, Hibernate, Spring Security Enterprise Platforms: Liferay (Portlet Development, Themes, Layouts, MVC, JSF, Alloy UI, PrimeFaces) Web & Frontend: JSP, Servlets, Ajax, WebSockets, JavaScript, React.js, Redux, Ant Design, HTML5, CSS3, jQuery, Sass Databases & Search: MySQL, PostgreSQL, MongoDB, Oracle 11g, MS-SQL Server, Elasticsearch, Solr Reporting Tools: Jasper Studio, BIRT Cloud & DevOps: Git, GitHub, Bitbucket, Jenkins, Azure DevOps, DigitalOcean, Linux/Ubuntu Testing & Automation: Selenium WebDriver, TestNG Mobile & APIs: Android (Java, Firebase, Google Maps API), Node.js, Express.js, Amazon Marketplace Web Services What I bring to the table: ✔ Proven ability to lead teams and deliver enterprise-grade applications on time. ✔ Strong expertise in building and securing scalable microservices architectures. ✔ Hands-on experience with DevOps pipelines, automation, and CI/CD. ✔ Ability to bridge the gap between business needs and technical solutions. I am passionate about continuous learning, mentoring teams, and solving complex business challenges with technology. Currently, I’m seeking opportunities in Java development, microservices, and DevOps engineering roles where I can contribute to innovation and growth.

🎯 Send me your SaaS idea or codebase. I'll tell you what's slowing your team down. I'm a fractional CTO and solutions architect with 13+ years of hands-on software development experience, helping founders turn product ideas into scalable SaaS businesses - a fractional CMO colleague often refers marketing-only leads my way once the product itself needs a solutions architect. I've helped take SaaS platforms from 0 to $85K MRR and $1M+ ARR. AWS Certified Solutions Architect - Professional, 100% Job Success, Top Rated, $100K+ earned. Why Companies Hire Me As a fractional CTO, I start every engagement with a codebase audit first. As a technical architect and solutions architect, I map the system first. As a virtual CTO with software architect experience, I've rebuilt 20+ saas developer projects dozens of startups still run in production. Chrome extension developer and full stack developer work get the same rigor as any MVP development engagement. What I Deliver - Fractional CTO: 150+ hours of technical team lead work - strategy, architecture reviews, technical due diligence for founders who need a CTO consultant, not a full-time hire. - SaaS Development: 60+ saas developer and software developer builds. Full stack developer work with Stripe payments and multi-tenant architecture. - Chrome Extensions: 25+ Chrome extension developer projects - Google Chrome extension builds, Manifest V3, Stripe-connected extensions. - AWS & Infrastructure: 30+ projects using AWS Architect and AWS developer skills, Docker, Kubernetes, REST APIs. - MVP Builds: 15+ MVP development sprints, validated before a full software architect rebuild. Fractional CTO work means the architecture stays consistent even as the team grows: CTO in, virtual CTO compatible, technical architect intact, solutions architect and software architect parity protected. My Process Phase one: technical audit - codebase, architecture, roadmap. Phase two: fractional CTO or technical architect handoff. Phase three: saas developer build - APIs, authentication, AWS. Phase four: Chrome extension developer work, launch. Every CTO, virtual CTO, solutions architect, and software architect engagement follows this, with software developer, MVP development, AWS developer, and CTO consultant sign-off included. Results SaaS Startup: fractional CTO engagement took a product from 0 to $85K MRR in 14 months. Chrome Extension: Chrome extension developer build hit 8,000+ installs; MVP development cycle ran 5 weeks to Chrome Web Store approval. Start Here Send your product idea or codebase - reply fast. Fractional CTO, technical architect, Chrome extension developer. AWS or Kubernetes - whichever fits. Everything I Cover ▪ Fractional CTO & Leadership: fractional CTO and technical architect builds, technical due diligence. Virtual CTO, technical team lead, and CTO consultant reviews follow the same standard. ▪ Architecture: solutions architect output for software architect parity, system architect bridged in. ▪ SaaS & MVP: saas developer and MVP development built once. Software developer design doesn't stop at launch. ▪ Chrome Extensions: Chrome extension developer with Google Chrome extension specs, full stack developer building the frontend. ▪ AWS: AWS architect and AWS developer validated before a solutions architect rebuild, AWS architect sign-off alongside technical architect, software architect, and MVP development review. Founders sometimes ask whether they need a fractional CTO or fractional CMO first - fractional CTO and technical team lead decisions come before fractional CMO marketing spend makes sense, with a fractional CMO brought in only once the product side is solid, not before a fractional CMO has anything real to market. I've worked as virtual CTO alongside a fractional cfo on runway planning, plus co founder and technical co founder engagements. Every project closes with a second review: saas developer and software developer QA, full stack developer sign-off, AWS architect and AWS developer checks, and a final CTO consultant pass, with virtual cto oversight and technical team lead alignment - the same saas developer, software developer, full stack developer, aws architect, aws developer, CTO consultant, virtual CTO, and technical team lead standard on retainer, covering TypeScript, JavaScript, PostgreSQL, and Docker. Usually, a technical architect audit and software architect review come first, then Chrome extension developer or MVP development work once the roadmap is clear - AWS architect and AWS developer expertise brought in as needed, with a technical team lead lens on hiring and a CTO consultant view on whether a fractional CMO hire matters more than another engineer right now. If you're building a SaaS product, need technical leadership without a full-time CTO hire, or want to launch or scale a Chrome extension - send me what you're working on, and I'll tell you what I'd do first.

Most AI projects fail not because of bad code — but because nobody connected the technical decisions to the business goals. That's the gap I close. I'm a Full Stack Architect and Technical PM with 14+ years of engineering experience, an IIM Indore management credential, and hands-on expertise in LLM systems, RAG pipelines, and agentic workflows. I've delivered solutions across fintech, banking, insurance, automotive, retail, and AI SaaS — working with teams of 1 to 20 engineers, managing budgets, writing Scopes of Work, and shipping production systems that keep running long after the contract ends. ── What makes me different ── I operate at two levels most freelancers can't: → Product level: I define what needs to be built, write the technical roadmap, scope the project honestly, and align the architecture with your business constraints — before a single line of code is written. → Engineering level: I build it. LLM integrations, RAG pipelines with semantic search, multi-agent systems, APIs, cloud infrastructure, CI/CD — end to end. This means you don't need a separate PM and a separate architect. You get both, with no translation layer in between. ── What I build with AI ── → RAG Systems: AI that answers from your actual data — documents, databases, internal knowledge — accurately and at scale. Built with LangChain, LlamaIndex, Pinecone, pgvector, and Weaviate. → Agentic Workflows: Multi-agent systems using LangGraph and CrewAI that automate complex, multi-step business processes — with the guardrails to keep them reliable in production. → LLM Observability: I don't just ship AI — I instrument it. RAGAS evaluations, LangSmith tracing, and performance benchmarking so you know what's working and what isn't. → AI on AWS / Azure / GCP: Bedrock, Lambda, serverless — secure, scalable, cost-optimized deployments. ── Project and Delivery ── Technical roadmap development · Scopes of Work · Agile / Scrum / Kanban · Budget management · Team hiring and mentoring · Jira, Confluence, Monday ── Core engineering stack ── Python (FastAPI, Django) · Node.js · React · Next.js · TypeScript · PostgreSQL · MongoDB · Docker · Kubernetes · CI/CD · OAuth2 / JWT ── Industries ── Fintech · Banking · Insurance · Automotive · Retail · AI SaaS · Media I'm direct and proactive. If scope needs to shift, if a simpler solution saves you three months, or if something is going off track — you'll hear it from me before it becomes a problem. If you're building an AI product and need someone who thinks at the business level and executes at the engineering level — let's talk.

Over 15 years of practical experience in the development and architecture of enterprise systems for web, mobile and desktop. As a senior backend software developer created a lot of reliable, bug-free, well-documented RESTful APIs, heavy background jobs, web services, etc. Guru in JAVA, strong experience in .NET, ASP.NET, and experience in web development. In the past 10 years, I designed, architectured, and delivered a lot of heavy-loaded, reliable systems and services. The main domains where I was involved are: Accounting(Double-entry bookkeeping, reconciliations, chargebacks) Billing(Clients invoicing) Payments(Integration with various PSPs: PayPal, Payoneer, Transfast, WellFargo, Skrill, Adyen(visa, mc, amex), etc. ) Compliance(Users identity and data verification) Authorization and authentication(oAuth2) Me and my team successfully finished legacy migrations\modernization projects, such as: Migrated desktop app to Web Migrated\modrinzed from legacy Perl monolit to java microservice architecture: user-payments related logic Accounting related logic Invoicing related logic Compliance related log Migrated to newer vendors APIs, file-based - SOAP - REST I understand how the blockchain cryptocurrencies work and have an experience to process payments from BTC, ETH, LTC, Tether, XMR I'm familiar with AWS infrastructure and can set up enterprise-level systems on it. I take full responsibility for the architecture and quality of the logic that is delivered by me and my team. In the future, I see myself as a product architect and an engineering lead in a successful product company.

⚡ I build production-ready, AI-powered web applications — from model training to fully deployed web products. With 7+ years of hands-on experience across full-stack development and AI/ML engineering, I specialize in one thing most developers can't offer: the full picture. I don't just integrate an API and call it "AI" — I architect robust, scalable systems where the AI layer genuinely solves your business problem. If you need a freelancer who can handle the entire stack — AI/ML backend, REST APIs, and polished frontend — you've found your person. What I build for clients: ✅ ML model development, fine-tuning & deployment (PyTorch, TensorFlow and more) ✅ LLM API Integration. GPT, Claude, Gemini integration into existing SaaS, CRMs, ERP & Web apps ✅ RAG systems — "chat with your documents" (PDFs, databases, wikis) ✅ AI agents & autonomous workflow automation (LangChain, CrewAI, LangGraph ✅ Custom AI chatbots & LLM-powered apps (GPT, Claude, Gemini, Llama) ✅ Full stack web applications (React/Next.js + Python/FastAPI/Django) ✅ Data pipelines, annotation systems & MLOps infrastructure ✅ Cloud deployment AWS, Google Cloud, Azure, Digital and many more ⚙️ Tech Stack at a glance: → AI/ML: Python · PyTorch · TensorFlow · Scikit-learn · HuggingFace · OpenAI API · Anthropic API → LLM Frameworks: LangChain · LlamaIndex · LangGraph · CrewAI → Vector DBs: Pinecone · Weaviate · ChromaDB · FAISS → Backend: FastAPI · Django · Node.js · PostgreSQL · MongoDB → Frontend: React · Next.js · TypeScript · Tailwind CSS → Cloud/MLOps: AWS · GCP · Docker · GitHub Actions · SageMaker 💡 Why Clients Choose Me: Most ML engineers can't build a polished, deployable product. Most full-stack developers don't truly understand AI systems. I bridge both worlds — and I've done it for 7+ years. You get a developer who: → Understands your business problem first, code second → Delivers working systems, not just demos or prototypes → Communicates clearly throughout — no technical black boxes → Has seen enough projects to know what breaks in production I work with startups, SMBs, and enterprise teams across the US, UK, EU, and Middle East. Whether it's a greenfield AI product or adding intelligence to your existing platform, I bring the same rigorous engineering approach. I focus on outcomes that matter: systems that save you time, reduce costs, or generate revenue. 📩 Message me with your project details — let's build something great together. #FullStackDeveloper #MERNStack #AIDevelopment #OpenAI #AIChatbot #Automation #Microservices #AWS #ML Engineer

I’m a seasoned Full Stack Developer with a wealth of experience, having dedicated 8 years to the roles of Software Developer/Architect. My specialization lies in the realm of Mobile App development with a particular focus on creating innovative solutions for a wide spectrum of industries, with particular emphasis on chat-related and AI-related applications Initially, I had started my journey with “Accenture” and after having a good enough experience and knowledge I’ve started to work on my own as an independent freelancer" I’m completely available with an excellent solution and provide the best industry experience. --> Our experience & Area of expertise: I’m very passionate about creating intelligent systems that push the boundaries of human-computer interaction. With 3 years of experience in the field, I have honed my skills in developing cutting-edge AI solutions and bringing transformative ideas to life. Related to Database; I've worked with SQL relational databases like MS-SQL, MySQL, PostgreSQL, Oracle DB and no SQL databases like MongoDB, DynamoDB and Elastic search. I have strong hands on experience working with Firebase and have worked with following Firebase services as: -- Live Database -- Fire Store -- Firebase Functions -- Analytics -- Ad mob integration -- Notifications -- Test labs Worked well with the following Cloud AWS Services like below: -- Lamba -- Ec2 -- S3 -- Fargate -- Cognito -- Route 53 -- SNS -- Api Gateway -- EBS -- RDS -- Elastic search and Kendra. And good working knowledge with other Cloud Services : -- Azure -- GCP -- Linode -- DigitalOcean and Docker based images. Backend Development: I’m very good with ( Java as well as Node.js ). I’ve worked with following Java frameworks as below; -- Spring boot -- Spring MVC -- Spring security -- JPA, Hibernate -- JSF I have developed more than 100 applications in Mobile (Android/IOS), Desktop (Windows/Linux/Mac) and web applications for the different industries and their links such as; -- Instant Messaging/ Voice/ Video calling (WhatsApp/Telegram/Wechat) -- Food Delivery (UberEats/Swiggy) -- Cab booking apps (Ola/Uber) -- Hospital management (Doctor/ Patient appointment schedule) -- Booking system (Movie ticket booking / Postpaid/ Prepaid Recharges) -- Wallet management (Fund Transfer / Pay using wallets) -- Fantasy games (Dream11/ Sorare) -- Crypto based NFT minting platforms -- Dating apps (Tinder/ Bumble) -- Social media apps (Tiktok/ Facebook) -- Media streaming apps (Netflix) -- Fitness Apps Please take a look and ensure yourself that we are very good at delivering your requirements in a very professional way. Let’s discuss ahead.