Leading teams. Architecting solutions. Building with AI.
Hello! My name is Marian Veteanu, and I’m an Engineering Leader and Solutions Architect focused on AI Agents, RAG, and LLMs. My career spans enterprise leadership and founding SaaS ventures, giving me a unique perspective on both the strategic and hands-on aspects of technology. I specialize in architecting AI solutions that move from prototype to production, building high-performing teams, and guiding organizations through key technical decisions. Beyond my professional work, I enjoy experimenting with emerging technologies and building side projects that push the boundaries of what’s possible.
AI Agents, RAG, and LLMs
Today, my focus is turning generative AI into production systems that deliver real business value. I design practical AI strategies and architect solutions built on LLMs, retrieval-augmented generation (RAG), and AI agents that automate multi-step workflows.
My work spans grounding models in proprietary data, building agents that integrate with existing tools and APIs through MCP, and deploying these systems securely on Azure and other clouds with data privacy built in.
I’ve also written papers on the subject, including Harness Proprietary Data with Foundational Models and RAG, OWASP Top 10 for LLMs, A Tour of Azure AI Services, and A Visual Presentation of Leading AI Studios.
From Early Coding to Technical Mastery
My journey in tech began at 13, fueled by curiosity and a ZX-Spectrum 48K clone (HC-90). Like many 8-bit computers of its time, it came with built-in BASIC, which I quickly outgrew as I set my sights on machine-level coding. I dove headfirst into Z80 assembly, spending countless nights coding, optimizing, and reverse-engineering games, laying the foundation for a lifelong fascination with low-level systems and performance optimization. One example from this period is 'Atomix', a game I recently recovered from an audio cassette.
Parallel to this, I gained early access to PCs and immersed myself in DOS, exploring executable file formats, FAT structures, and INT 21h interrupts. And so, I founded my first garage software initiative, VMASOFT, writing DOS software in Pascal and x86 assembly. Many of these early creations still live in my legacy GitHub repository. These include graphics libraries like MCGA, windowing systems like VMAWin, and even exploratory work in virus behavior (all safely archived, of course).
From there, I moved into Windows development, mastering Delphi and building commercial products like PowerTests Desktop, a test assessment suite adopted by several schools. This project became a launchpad for my first entrepreneurial SaaS venture: PowerTests.NET, built using classic ASP and the IE 4.0 DOM model. I handled the full lifecycle, from architecture to marketing, and even published technical articles on emerging web technologies of the time.
Engineering Leadership in Enterprise Innovation
My entrepreneurial path evolved into enterprise-grade innovation when I joined STARLIMS (later acquired by Abbott Laboratories).
In my tenure of over two decades at STARLIMS / Abbott, I held architecture and senior engineering leadership roles. I drove multi-million-dollar platform initiatives that delivered enterprise-grade solutions for global clients and drove significant long-term savings through forward-looking architecture and strategy.
I led multiple product teams, mentored engineers across levels, and championed best practices in software architecture, security, and product lifecycle management.
I also remained deeply technical, shaping architectural strategy using .NET, Azure/AWS cloud services, event-driven microservices, and emerging GenAI (LLM, RAG) technologies.
From building greenfield platforms to modernizing legacy systems, I consistently delivered scalable solutions that combined innovation, business impact, and engineering excellence.
Beyond my professional journey, I regularly write about leadership, engineering culture, and innovation on LinkedIn, sharing lessons learned, insights from the field, and perspectives on where technology is heading. You’re invited to explore my LinkedIn articles and join the discussion.
Entrepreneurship
After my tenure at STARLIMS / Abbott, I returned to my entrepreneurial roots and founded two SaaS ventures: codeguppy.com, a JavaScript coding platform used by about 38K users, and appmaker.io, a visual full-stack environment for building web applications with a structured architecture that both developers and AI can understand and extend.
I own the full journey, including architecture, development, product strategy, and growth, from writing a book to building an audience on YouTube, X, Instagram, Facebook, Pinterest, and TikTok.
Hire me 🤝
I am excited to join an organization where I can make an impact. Let’s connect and explore opportunities. Message me on LinkedIn or on X.