AI Agents & Automation
Autonomous agents that plan, call tools, and finish multi-step work. Built to run unattended, recover from failure, and report what they did.
AI Engineer • Bucharest • Agents · Skills · RAG
I Build Agents ThatLearn and Ship.
I'm Sergiu Vataman — an AI engineer crafting autonomous agents, custom skills, and the tooling around them. I design RAG systems that retrieve, reason, and act, turning frontier models into software that does real work.
$ viking agents run rag-pipeline --ground ./knowledge
✓ indexed 12,480 docs · embeddings ready
✓ retrieval p95 48ms · reranker on
→ agent online. ask it anything.
$
About
Twelve years of craft, now forged into AI.
The Viking Company began as a web studio in Bucharest — a decade and more of shipping software across Europe. Not just brand sites and e-commerce, but the high-stakes kind: national public procurement, border tolling, internal taxation systems where downtime and error simply aren't options. The obsession was always the same — build things that are usable, dependable, and made to last.
Today that obsession points at a new horizon. I build the agents, skills, and retrieval systems that let teams put frontier models to real work — reliably, observably, and in production. RAG pipelines that stay grounded. Automations that run unattended. Tooling that extends what a model can reach.
Same Norse stubbornness about quality. New waters.
- Integrity
- Innovation
- Collaboration
Expertise
From the model to the metal — the whole stack of putting AI to work.
Skills & Tooling
Custom skills and tool integrations that extend what an agent can reach — bespoke APIs, browser and filesystem control, internal systems.
RAG & Retrieval
Retrieval-augmented generation done properly: chunking, embeddings, hybrid search, rerankers, and evals that keep answers grounded in your data.
LLM Integration
Wiring frontier models — Claude, GPT, and open weights — into products with clean APIs, structured outputs, streaming, and guardrails.
Mission-Critical Web
A decade of front- and back-end craft — from national public-sector platforms to e-commerce. Angular, React, Next.js, Node.js, WordPress.
Deployment & Ops
GitLab CI/CD pipelines, hosting, and observability — release automation, monitoring, and the unglamorous work that keeps high-stakes systems alive in production.
Work · Selected Projects
National-scale systems, client platforms, and open experiments.
Public-Sector & High-Stakes SystemsFull-stack delivery — UI/UX design, front-end, back-end, and GitLab CI/CD — on systems where downtime and error are not options.
Public Sector · ProcurementGov
e-Licitație (SEAP / SICAP)
Full-stack engineering on specific modules and business flows of Romania's national electronic public-procurement platform — UI/UX design through to back-end services, with the front-end functionality those workflows demand. Built for uptime, data integrity, and audit at national scale.
Visit sitePublic Sector · TollingGov
e-Tarif Giurgiu
End-to-end delivery of modules for the Giurgiu Danube-bridge toll-and-tariff system — UI/UX design and responsive front-end over the back-end business logic — collecting public revenue reliably, right at the border.
Visit sitePublic Sector · Fiscal—
Internal Taxation Systems
Confidential fiscal back-office systems — specific taxation modules and business flows built front-end to back-end, plus the GitLab CI/CD pipelines and release automation behind them. Engineered for accuracy, auditability, and uptime.
Confidential · NDAClient Platforms & ProductsBrand, commerce, and lead engines shipped for clients across Europe.
E-commerce · Web2024
Bavaria Yachts Romania
Digital storefront and catalogue for the Romanian division of Bavaria Yachts — sailing and motor yachts, built mobile-first with payment and lead capture.
Visit siteCharter · BrokerageWeb
Yacht One
Digital showroom and inquiry engine for a luxury yacht-charter brokerage — “Capture the Dream”: a curated fleet gallery, destinations, and a booking funnel.
Visit siteE-commerce · WebWeb
Viking Bazar
Online store for recreational boats and marine gear — SeaStorm single-mould boats and accessories — with catalogue, pricing, and a clean checkout.
Visit siteE-commerce · Web2024
Wheelmarket
Specialised marketplace for automotive wheels and accessories in Romania — product discovery, fitment search, and a checkout tuned for conversion.
Visit siteOpen Source & ExperimentsAutomations, modules, and things built to learn something new.
Automation · Puppeteer2024
yacht-scraper
Headless Puppeteer pipeline that scrapes, normalises, and de-duplicates boat listings across sources — the data layer behind a yacht marketplace.
View codeAutomation · Data2024
pdf-scraper-web
Service that crawls a target site, harvests linked PDFs, and extracts their text — feedstock for downstream RAG indexing and analysis.
View codeModule · JavaScript2023
Narrative Health States
A Foundry VTT module that swaps raw hit-point numbers for narrative health descriptors when players hover an enemy token — published to the community.
View codeML · Reinforcement Learning2022
DeepLearning FlappyBird
An agent that learns to play Flappy Bird from raw pixels using Deep Q-learning — an early dive into reinforcement learning and reward shaping.
View codeSoul project · Politehnica Bucharest
NERVA Orbital
Where it started. NERVA was a government-funded Romanian R&D program developing a homegrown platform to launch satellites into orbit — a decommissioned rocket vehicle re-engineered toward horizontal orbital flight at 160 km, proven by live test-stand firings. I built telemetry modules for the vehicle: my first real lesson in systems where the data has to be exactly right.
Contact
Let's build something that lasts.
Have an agent to design, a RAG system to ground, or an automation that should just run on its own? Tell me what you're building — I reply to every serious message.