I’m Sergei Vasiliev, an architect and hands-on engineer with twenty years in B2B software: banking, retail, regulatory compliance, city infrastructure and, now, AI. Through my company Uravin d.o.o. I take a project from the first workshop to a running system, on my own or with a small senior team.
Services
One person accountable from requirements to production. When a project needs more hands, Uravin brings engineers, analysts and DevOps who stay with it to the end.
Web products and internal systems, from MVP to production and support.
AI features that hold up with real users and real data, not only in a demo.
Processes and data moving reliably between the systems a business already runs.
For new initiatives and for projects that are late or stuck.
Products
Our own products are where we test the methods we bring to client work: verify before release, keep an audit trail, fail safe.
An isolated, fail-closed layer between a backend and a payment gateway. It independently verifies every outgoing payout command (post-quantum signature, no replay, limits, match to the approved record) before money moves.
An AI studio that turns a book manuscript into a screenplay, a shot list, character and scene references and short video clips, checking every step against the source text.
Finding and verifying suppliers in China: catalog ingestion, supplier risk checks and automated research pipelines with multi-provider LLM routing, plus Shopify and WordPress integrations. It grew out of the tools built for a technical importer in Montenegro.
Selected work
Client names are shown where the engagement is public; the rest are described by industry and scale.
Built the bank’s process automation platform from scratch, working with compliance analysts, DevOps and developers. Compliance and business rules became executable BPMN processes and DMN decision tables; KYC and customer onboarding, lending and compliance checks went to production. Ran the platform in a live banking environment, including a production cluster upgrade from Camunda 8.6 to 8.8 with zero downtime.
As a partner responsible for IT and for running deals, I helped launch a technical importer in Bar that brought in any goods on behalf of its clients, and automated almost every step of the operation: client request intake, supplier search and verification in China, quotes, templates for suppliers, freight forwarders and customs brokers, document flow and the advertising funnel. The import business ran on these tools, and mandarin.business grew directly out of them.
A system the chain uses every day to decide what to buy, how much and from whom. Demand is forecast from receipts, counting only the days an item was actually on the shelf, which fixed systematic under-ordering of fast sellers. An optimiser picks the order that maximises expected gross profit within the budget, supplier minimums and mandatory assortment, and every order passes the chain’s purchasing rules before it is sent. One supplier showcase merges B2B portals and price lists, and deliveries and invoices are reconciled against the accounting system.
Regulatory compliance MVP for a national pharmacy chain against a hard legal deadline: requirements with lawyers and IT, architecture, coordination of SAP and regulator-API vendors, phased rollout. Rollout architecture for a grocery retailer with 20,000 stores, with a team across Germany and India.
Delivery lead and solution architect for the system that runs a megacity’s decorative lighting across five municipal departments: AS-IS / TO-BE process architecture, 18 automated workflows, integration contracts and product metrics. More than 50 users moved from paper and chats to tracked digital workflows.
Built the division and its 15-person cross-functional team from zero, and launched EDI, Track & Trace, retail analytics, a partner portal and data products for brands for a base of 120,000+ business clients. Owned the roadmap and reported per-product KPIs to the CEO and shareholders.
Integration and rollout projects on a nationwide government information system, delivered against statutory deadlines (details under NDA). Later, specifications, test programmes and user and administrator guides to formal state documentation standards for public-sector and enterprise clients.
Billing and provisioning middleware for a mobile operator’s mobile TV service: real-time charging between the network and the billing platform.
As co-founder and CTO: a computer-vision system that recognised the audience’s gender and age in real time and chose the advertisement to match, built before off-the-shelf AI frameworks existed.
Team
I lead every engagement myself. For larger projects the core team below, and trusted engineers and analysts from our network, join it from discovery to production.
Architecture · delivery · engineering
Twenty years in B2B software: product director at a fiscal data operator, enterprise Track & Trace delivery, a banking BPM platform on Camunda 8 and AI systems in production. Physics, Lomonosov Moscow State University.
AI systems · security · AIGIS core
AI systems engineer and architect of secure AI platforms: multi-agent systems, post-quantum cryptography and transaction protection in AIGIS, medical decision-support AI and AI-driven CAD/CAM. Security background in OSINT, red teaming and SecOps.
Marketing · acquisition · AI automation
Business process automation and growth: digital marketing, SEO, paid acquisition, website development and rollout of AI tools. Master’s degree in Accounting and Finance, specialising in Banking.
About
A software engineering and consulting company registered in Montenegro. We work with banks, fintechs, retailers and product teams that need systems which behave correctly under pressure: in production, under audit and at scale.
Engagements run on clean B2B contracts with invoicing in EUR. Remote by default, on-site in the region when the work needs it.
Contact
A short description of the system, the deadline and what is in the way is enough. I reply within a working day.