Web / Software / AI / Automation
Websites, custom software, AI systems and automation for companies that need measurable results, from first architecture to production.
Selected work
Real, running websites inside the page. Scroll and click through them, or expand one to full screen.
All work
Design · Development · Booking flow
A concept website for a medical recovery clinic: services, technologies, team, blog and online consultation booking, with light and dark themes.
Design · Development · Bilingual CMS · Booking
A concept website for a legal practice, built to show what a modern law-office site can do: practice-area pages, consultation booking, blog and Q&A, bilingual and fast.
Product design · Platform development · Moderation workflow
A Romanian citizen-journalism platform for collaborative investigations, with contributor submissions and an editorial workflow.
What we do
Most engagements combine two or three of these. If you are not sure which, that is what the first call is for.
All servicesMarketing sites, e-commerce and bilingual CMS builds that load fast, rank well and are editable without a developer.
A site you own, that you can edit yourself.
Learn moreWeb applications, SaaS products, internal tools and platforms built for your process instead of bending your process to a tool.
A system your team runs the business on, in your own repositories.
Learn moreAssistants grounded in your documents, document intelligence, speech-to-text and LLM features engineered for cost and reliability.
AI features that survive production: evaluated, monitored and priced sanely.
Learn moreOperations, reporting and integrations that run on their own: scheduled pipelines, n8n or Make flows, and custom code where it matters.
Hours back every week, with a log and an alert for every run.
Learn moreAutomation audits, build-vs-buy decisions, vendor and infrastructure choices, technical due diligence and roadmaps with ROI attached.
A prioritised plan you can act on with or without us.
Learn moreProcess mapping, operating-model and workflow design for companies whose growth is limited by how the work is organised, not by the tools.
A clearer operating model, and a shortlist of what to fix first.
Learn moreCashflow dashboards, budgeting and forecasting models, invoicing and reporting automation, plus help deciding what is worth measuring.
Numbers you can act on, updated without spreadsheets.
Learn moreEvent tracking, dashboards, forecasting and experiments, with the statistics done properly.
Numbers you can defend in a board meeting.
Learn moreLiterature reviews, experiment design, reproducible analysis and publication-quality writing for companies and researchers.
Credible evidence behind a decision or a paper.
Learn moreCase study
A production document pipeline had become economically unviable. Six weeks of measurement, routing, caching and prompt work cut the bill by 99% while quality on a fixed evaluation set went up.
99% cost reduction, evaluation quality maintained, batch jobs off the interactive path.
Software
Our own products and open-source tools: a local gateway for AI coding agents, a desktop app for juggling client accounts, and developer tooling. Source code is public.
All work
Architecture · Backend · Desktop app · Packaging
A local LLM gateway for AI coding agents. Point Claude Code, Codex, OpenCode or Gemini CLI at one address and route them across 57 model providers, with fallback chains, key rotation and cost tracking.
Product design · Desktop development · Security
A Windows desktop app that keeps several accounts per service signed in at once (Vercel, Netlify, Supabase, Cloudflare, GitHub, Gmail and more), each in its own isolated session, switchable like tabs.
Design · Full-stack development · Testing
A local, browser-based editor for GSD (open-gsd/gsd-core) configuration: every key explained in plain language, validated before saving, written atomically and kept in a restorable history.
Founder-led
Danube Labs is led directly by Alexandru Secureanu, an AI/ML and full-stack engineer with more than ten shipped products behind him: AI translation apps, transcription systems, document tooling, educational platforms and SaaS products. There is no account manager between you and the person writing the code.
Training in cybernetics, statistics and economic informatics shapes how the work is done: every claim is a hypothesis, every model gets an evaluation set, every business case gets a number attached.
Extended by a network of designers, engineers and domain specialists when a project requires it.
How we work
A focused workshop on the problem, constraints and what success looks like. Written scope, estimate and risks within a week.
Interface and technical design together, so what gets designed can be built on time.
Working software every week on a preview URL. Feedback early, no surprises at the end.
Deployment, monitoring, documentation and a handover your team owns. Support when you want it.
Insights
Claude Max weekly limit, measured: our Max 5x account, capped every week, used 48% to 82% less after Opus 5.5 arrived. One account only. See the data, the method and what Anthropic has published.
AI news September 2026 in one page: new OpenAI, Anthropic and Google models, lower API prices, two big acquisitions and a safety scare after AI agents left test environments. Every item is sourced.
Chinese AI models vs US frontier labs on 4 October 2026: dated releases, independent and lab-reported benchmarks, token prices, licences and what to choose.
Questions
Fixed price for well-defined scopes, time and materials for open-ended or research work. Either way you get a written estimate after discovery and no surprises after that.
The founder, directly. Designers, engineers or domain specialists from our network join when a project needs them, and you always know who is on it.
Yes. We are based in Bucharest and work remotely with clients across Europe and beyond, in English or Romanian.
Yes. We start with a short audit of the code, infrastructure and risks, then propose a plan. Many engagements begin this way.
You do. Everything we build is delivered in your repositories and accounts, with documentation and no lock-in.
Tell us what you are working on. No pitch, no obligation, a reply within one business day.
