AI Software Agency · Vienna / Remote EU

AI features shipped into your product in 14 days. Fixed price, senior hands, GDPR-first.

E-Business Lab is a founder-led engineering studio. You work directly with a CTO-level engineer who has shipped AI systems used by thousands — not with a sales layer and a junior team.

20+ yrssoftware engineering & leadership
DAU growth via AI features (event platform)
3.0 → 4.7★fintech app rating turnaround
5,000+users on self-built AI fitness platform

Fixed-price services

Pick your entry point. No hourly surprises.

Every engagement is scoped, priced, and deadlined before we start. You know exactly what you get and what it costs.

AI-Readiness Audit

€490 fixed

Know exactly where AI pays off in your business — before spending on development.

  • Review of your product, data & workflows
  • 3–5 concrete AI opportunities, ranked by ROI
  • Cost & effort estimate for each
  • GDPR / EU AI Act risk notes
  • Written report + 1h walkthrough call
Start the audit

Workflow Automation

from €750 fixed

Stop paying staff hours for work a machine does better. Built on n8n, Make, or custom code.

  • Lead intake → CRM → follow-up flows
  • Invoice, report & document automation
  • AI email triage & drafting
  • Content & social publishing pipelines
  • Runs on EU-hosted infrastructure
Automate a workflow

Senior Engineering Retainer

from €2,900 / month

A CTO-level engineer embedded in your team — without the full-time cost.

  • Full-stack delivery: TypeScript, React, Node, Python
  • Architecture & code review
  • AI/LLM strategy and implementation
  • Team mentoring & hiring support
  • Cancel monthly — no lock-in
Discuss a retainer

Track record

Real systems. Real numbers.

Results from production systems — built or led end-to-end.

daily active users

AI Event Platform

Architected an AI-powered event repository with automated curation, quality & curiosity scoring, spam detection, multilingual enrichment — with strict schema validation and token-cost control.

LLM pipelinesCTO role
3.0 → 4.7★
Google Play rating

Digital Wallet (Fintech)

Led product for a regulated payment wallet: systematic UX and stability programme, mini-app ecosystem launch, RBAC and audit logging in a compliance-heavy environment.

FintechProduct lead
5,000+
active users

AI Fitness Coach

Solo-built AI coaching platform: personalised training plans generated in under 15 seconds via vector search, offline-first and privacy-first architecture, live on Google Play.

Vector DBSolo build
Multi-tenant
B2B SaaS, EU-hosted

Loyalty SaaS for SMBs

Digital punch-card platform — QR + web wallet, no customer app needed. Stripe billing, fraud prevention, audit logging, GDPR-compliant by design.

SaaSGDPR

How it works

From first call to shipped feature

Free 15-minute feasibility chat

You describe the problem. I tell you honestly whether AI is the right tool — and if it isn't, I'll say so. No pitch deck.

Fixed scope, fixed price, fixed deadline

You get a one-page proposal: what will be built, what it costs, when it ships. Signed off before any work starts.

Build in the open

Progress updates every 2–3 days with working demos — not status meetings. You see the feature evolve in your own environment.

Ship, document, support

Production deployment, handover documentation your team can actually use, and 30 days of included support after launch.

Why E-Business Lab

Built for European businesses

🔒

GDPR & EU AI Act first

Data minimisation, EU hosting options, and sanitisation layers before any data reaches an LLM. Compliance designed in — not bolted on after a lawyer's email.

🎯

Senior only, founder-led

The person on the call is the person writing the code — with 20+ years of engineering and CTO/product leadership across fintech, AI, and SaaS.

⚙️

Production AI, not demos

Structured outputs validated against schemas, cost monitoring, fallbacks and retries. AI features that survive contact with real users and real invoices.

IM

The founder

Ivo Marinov

Software engineer, product leader, and CTO with a 20+ year career across enterprise platforms, fintech, XR, and AI. I've led 6-person engineering teams, owned product roadmaps in regulated environments, and shipped my own products solo — from architecture to Play Store.

E-Business Lab is how I work with clients: direct, senior, and accountable. No account managers, no outsourced juniors, no black boxes.

StackTypeScript · React · Next.js · Node · Python · PostgreSQL
AILLM orchestration · RAG · vector search · agentic systems
BaseVienna, Austria · EU-wide remote
LanguagesEnglish (C1) · German (basic) · Bulgarian (native)

FAQ

Common questions

What if the sprint scope turns out bigger than expected?

The scope is fixed before kickoff — that's the point of the proposal step. If discovery reveals it's genuinely bigger, you decide: trim to fit the sprint, or split into two sprints. The price of a committed sprint never changes mid-flight.

Which AI providers do you work with?

OpenAI, Anthropic, and EU-hostable open models — chosen per project based on your data sensitivity, latency, and cost requirements. Model choice and version are pinned and documented.

Our data is sensitive. Can we still use LLMs?

Usually yes — with a sanitisation layer that strips or pseudonymises personal data before it reaches any API, plus EU hosting where required. This is a core specialty, coming from regulated fintech work.

Do you take longer projects?

Yes — that's the retainer. Most clients start with an audit or a sprint, then continue monthly once trust is established.

Who actually does the work?

I do. For larger engagements I bring in vetted senior specialists I've worked with before — never anonymous outsourcing.

Tell me what's slowing your business down.

Reply within one business day. If AI or automation isn't the right answer for your problem, I'll tell you that too — for free.

contact@ebusinesslab.tech