Hire the Best Serverless Developers in Bucharest, RO

🏆 Experienced Full Stack Developer ✅ 10+ years of experience 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗮 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗼𝗿 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝗻𝘁 𝘁𝗼 𝘁𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮 𝗶𝗻𝘁𝗼 𝗮 𝗳𝗮𝘀𝘁, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻? 𝗜’𝗺 𝗵𝗲𝗿𝗲 𝘁𝗼 𝗺𝗮𝗸𝗲 𝗶𝘁 𝗵𝗮𝗽𝗽𝗲𝗻. With hands-on experience in a range of frameworks, such as React, Node.js, Laravel, and AWS, I can take your concept from idea to MVP — often in just 30 days — using clean architecture, modern frameworks, and scalable infrastructure. 𝐖𝐡𝐚𝐭 𝐬𝐞𝐭𝐬 𝐦𝐞 𝐚𝐩𝐚𝐫𝐭: As a Full-Stack Engineer with over 10 years in the IT sector my expertise is deeply rooted in the development and deployment of scalable web technologies. I am adept in a range of frameworks and languages, including React and NodeJS, with a robust understanding of AWS services. I am driven by a desire to build, grow and lead in the software industry 🚀 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: 🧠 10+ years of real-world experience in full-stack development 🧼 Clean, maintainable code and scalable architecture 📢 Transparent communication and on-time delivery 💼 Business-minded approach: I focus on real impact, not just code 🛠️ Tech Stack Snapshot: React, React Native, Next.js, Remix, Tailwind CSS, Vite, Astro Node.js, Laravel, PHP, C#/.NET, AWS (Lambda, CDK, SQS) PostgreSQL, MongoDB, SQL Server, Kafka SEO, Performance Optimization, CI/CD, Monolith, Serverless Architecture, Microservices 𝐖𝐡𝐚𝐭 𝐭𝐨 𝐄𝐱𝐩𝐞𝐜𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞 𝐏𝐫𝐨𝐚𝐜𝐭𝐢𝐯𝐞 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 – You’ll get clear progress updates, fast responses, and real-time collaboration — no surprises, just results. 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧 & 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞 – I stay ahead of trends so your product isn’t just functional — it’s future-proof, optimized, and built to scale. 𝙇𝙚𝙩’𝙨 𝙩𝙪𝙧𝙣 𝙮𝙤𝙪𝙧 𝙫𝙞𝙨𝙞𝙤𝙣 𝙞𝙣𝙩𝙤 𝙖 𝙝𝙞𝙜𝙝-𝙥𝙚𝙧𝙛𝙤𝙧𝙢𝙞𝙣𝙜, 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙞𝙤𝙣-𝙧𝙚𝙖𝙙𝙮 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣 — 𝙬𝙞𝙩𝙝 𝙘𝙡𝙚𝙖𝙣 𝙘𝙤𝙙𝙚, 𝙨𝙩𝙧𝙖𝙩𝙚𝙜𝙞𝙘 𝙩𝙝𝙞𝙣𝙠𝙞𝙣𝙜, 𝙖𝙣𝙙 𝙚𝙣𝙩𝙚𝙧𝙥𝙧𝙞𝙨𝙚-𝙡𝙚𝙫𝙚𝙡 𝙚𝙭𝙚𝙘𝙪𝙩𝙞𝙤𝙣. 📬 Message me today and let’s build something exceptional. ---------------------------------------------------------------------------------------------------------- #FullStackDeveloper #WebDevelopment #APIDevelopment #ReactDeveloper #JavaScript #TypeScript #PaymentIntegration #StripePayments #FrontendDevelopment #BackendDevelopment #React #NodeJS #AWS #AWSCdk #AWSLambda #TailWindCSS #Vite #Astro #Remix #GoLang #CloudComputing #Microservices #GraphQL #SQL #Laravel #DevOps #CI/CD #Serverless #NextJS #Redux #MongoDB #PostgreSQL #AgileDevelopment #SoftwareArchitecture #Kafka, #Monolith, #Serverless #Architecture, #Microservices

⚡ Top 3% Rated Freelancer on Upwork, 100% Job Success, 5-star reviews exclusively. 🛠️ Claude Code/Cowork, OpenClaw, NanoClaw, Hermes Agent, Claude Agent SDK, MCP, Python & TypeScript 🌍 Long-term partnerships - I help clients evolve their AI workflows as the space changes --- I develop multi-agent systems with Claude Code and OpenClaw. I've been doing this since before OpenClaw existed - 25 agents, 167 instruction sets, 321 execution scripts across freelancing automation, crypto monitoring, cold email, content pipelines, and developer tooling. --- What I build: 🔹 Multi-Agent Systems & Orchestration: Autonomous agents using Claude, GPT, Gemini, and open-source LLMs. Multi-agent coordination with shared state, function calling, MCP tool use, and Claude Agent SDK. OpenClaw and NanoClaw deployments with container isolation. 🔹 AI Voice Agents: End-to-end voice agent pipelines using Twilio, VAPI, Retell, and Bland AI. Appointment booking, call routing, follow-ups, SMS confirmations. 🔹 Custom AI Automation (Full-Code): Python and TypeScript automations that connect your entire stack. Real code that you own and can modify. 🔹 Web Scraping & Data Extraction: Large-scale scraping with Python (Playwright, Selenium, BeautifulSoup, Scrapy, Apify). Lead generation, market research, competitive analysis. 7,200+ leads processed in a single pipeline. 🔹 API Integrations & Development: REST, GraphQL, custom connectors. I've integrated 12+ APIs in a single project. FastAPI backends, serverless functions (AWS Lambda, Vercel). 🔹 Data Pipelines & Vector Search: pgvector embeddings, Supabase, PostgreSQL. Real-time data sync between databases, spreadsheets, and cloud apps. 1,312 reference vectors in one production system. 🔹 Sales & CRM Automation: Lead enrichment, scoring, distribution. CRM sync (Salesforce, HubSpot, Pipedrive). Cold email infrastructure with deliverability optimization (85% inbox rate). 🔹 E-commerce & Marketing Automation: Inventory sync, order processing, dynamic email campaigns, social media content pipelines (Shopify, WooCommerce). Tech stack: 💻 AI & LLMs: Claude Code, Claude Agent SDK, OpenClaw, NanoClaw, OpenAI GPT, Gemini, LangChain, MCP, function calling, prompt engineering, vector databases (pgvector, Supabase) 💻 Python: FastAPI, Playwright, Selenium, BeautifulSoup, Scrapy, Pandas, asyncio 💻 TypeScript/Node.js: Full-stack development, webhook handlers, serverless applications 💻 Databases: PostgreSQL, MySQL, SQLite, Supabase, pgvector 💻 Deployment: Docker, containers, AWS Lambda, Vercel, Railway 💻 APIs: REST, GraphQL, OAuth, custom API development OpenClaw & Claude Code expertise: I've done 300+ source research on the OpenClaw ecosystem - architecture, CVEs, security model, skill engine, the full stack. I run NanoClaw (built on Claude Agent SDK) for my own setups because of the container isolation and auditable codebase, but I'm comfortable deploying and customizing both. For clients with strict security or compliance requirements (hedge funds, UHNW, fintech), I recommend whichever architecture fits best. I stay at the cutting edge. Every new model release or capability shift, I'm already testing and building with it. I do my best work in long-term partnerships where I continuously help clients evolve their AI workflows. Ready to talk? Send me a message with what you're building.

Founded and successfully launched 2 AI-driven legal tech startups in Romania. Over the last year, I also delivered large-scale AI systems, including an AI PDF processing pipeline that reads clinical PCC notes and extracts relevant, reportable clinical events at high throughput (processing ~1000 pages per minute on avg) and an ambient AI agent integrated with Twilio SMS group chats that can track context, assist with information, schedule and retrieve meetings, set calendar events, send reminders, and stay silent when appropriate. Technical Expertise AI & Machine Learning: TensorFlow, Keras, PyTorch. Advanced AI Techniques: Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), structured extraction, tool-use agents, and evaluation/monitoring patterns for production LLM systems. Vector Databases: Pinecone, Postgres pgvector, Qdrant. Tech stack: Python, TypeScript, React, Next.js, Node.js, Deno. Cloud Platforms: Azure (deep production experience), AWS, Google Cloud. Professional Experience Founder & AI Architect | Legal Tech Startups Conceptualized and developed AI-powered applications addressing critical challenges in the legal sector, with a focus on structured extraction and high-precision retrieval. Implemented LLM and RAG pipelines to extract and structure data from complex legal documents, and leveraged vector databases to enhance search and information retrieval. Collaborated closely with legal professionals to ensure the applications met industry-specific needs and compliance requirements. AI Solutions Architect | Enterprise-Scale AI Systems Designed and deployed a high-throughput AI document processing pipeline within the Azure ecosystem, using a robust set of cloud components such as app services, serverless function apps, databases, queues, workers, and scheduled jobs to support reliable daily operations. Built an ambient AI agent for Twilio SMS group chats that supports meeting scheduling, reminders, progress check-ins, and context-aware assistance without interrupting conversations. Developed multiple AI chatbots and “ChatGPT-like” applications connected to databases, capable of generating SQL queries and performing controlled reads to enable deep, conversational analytics over user data. Approach I combine strong engineering fundamentals with product-minded execution to deliver AI that works in the real world. I focus on clear requirements, measurable outcomes, and systems that are secure, scalable, and maintainable, with iterative improvement based on user feedback and operational metrics. Why Work With Me If you need someone who can take an AI idea from concept to a dependable production system, I bring both the architectural depth and hands-on delivery. I’m comfortable across the full stack, from LLM/RAG design and data pipelines to cloud deployment, monitoring, and continuous improvement. Looking forward to working together!

Need more organic traffic — or a custom tool your competitors don't have? I help businesses fix what's holding their website back and build interactive tools that turn visitors into leads. I'm a digital specialist with 20+ years of experience and 16,000+ hours on Upwork as a Top Rated freelancer. I focus on two things I'm genuinely good at: Technical SEO — website audits, technical fixes, keyword strategy and on-page optimization, delivered as a prioritized, plain-English roadmap you can act on immediately (not a 60-page report you'll never read). Custom web tools — interactive calculators, quote/pricing tools, dashboards and internal apps that capture leads and cut manual work. Built on a modern, serverless stack. No monthly subscriptions — you own the code. Or a complex web app with databases that can work with API, pulling data from various third party websites. What makes my work easy to trust: I don't send screenshots, I send live demos. You can click through real, working tools I've built before we ever start — the difference between "I can do this" and "here, try it yourself." I work fast, communicate clearly, and care about the result, not just the deliverable. Most of my clients come back. If you have a specific problem — a site that won't rank, a manual process eating your time, or an idea for a tool — message me. Tell me what you're trying to achieve and I'll tell you honestly whether and how I can help.