Family-Run Atlassian Experts

Two People. No Layers. All Value.

Atlassian & AI delivered directly — honest, hands-on, no layers, no bloat.

Meet the Perdums

Atlassian consulting, development and delivery, directly with us.

Mihai Perdum

Mihai Perdum

Atlassian Consultant

Atlassian Forge developer and AI enthusiast who built his own agentic development workflow. Turns complex migration projects into lean, fast deliveries.

Atlassian Certified Administration Expert badge
Atlassian Certified Administration ExpertThe successor to ACE

Four ACPs covering Jira, Confluence, Jira Service Management and cloud organization administration.

  • Jira Administration for Cloud (ACP-120) — Atlassian Certified Professional badgeACP-120
  • Confluence Administration for Cloud (ACP-220) — Atlassian Certified Professional badgeACP-220
  • Managing Jira Service Projects for Cloud (ACP-420) — Atlassian Certified Professional badgeACP-420
  • Cloud Organization Administration (ACP-520) — Atlassian Certified Professional badgeACP-520
Forge DevelopmentAI WorkflowsCloud Migrations
Gabriela Perdum

Gabriela Perdum

Atlassian Consultant

PhD engineer turned Atlassian expert. Brings scientific rigor and relentless work ethic to every configuration, script, and client engagement.

Atlassian Certified Administration Expert badge
Atlassian Certified Administration ExpertThe successor to ACE
Atlassian Certified Agile DevOps Specialist badge
Atlassian Certified Agile DevOps Specialist
Atlassian Certified ITSM Specialist badge
Atlassian Certified ITSM Specialist

Atlassian Certified Administration Expert, Agile DevOps Specialist and ITSM Specialist — four ACPs covering Jira, Confluence, Jira Service Management and cloud organization administration, plus the Cloud, Forge, JSM, Rovo and Loom fundamentals.

  • Jira Administration for Cloud (ACP-120) — Atlassian Certified Professional badgeACP-120
  • Confluence Administration for Cloud (ACP-220) — Atlassian Certified Professional badgeACP-220
  • Managing Jira Service Projects for Cloud (ACP-420) — Atlassian Certified Professional badgeACP-420
  • Cloud Organization Administration (ACP-520) — Atlassian Certified Professional badgeACP-520
  • Atlassian Credentialed in Cloud Fundamentals (Cloud Fund.) — Atlassian Certified Professional badgeCloud Fund.
  • Atlassian Credentialed in Forge Fundamentals (Forge Fund.) — Atlassian Certified Professional badgeForge Fund.
  • Atlassian Credentialed in JSM Fundamentals with AI (JSM+AI Fund.) — Atlassian Certified Professional badgeJSM+AI Fund.
  • Atlassian Credentialed in Rovo Fundamentals (Rovo Fund.) — Atlassian Certified Professional badgeRovo Fund.
  • Atlassian Credentialed in Loom Fundamentals (Loom Fund.) — Atlassian Certified Professional badgeLoom Fund.
Jira ConfigurationScriptingDocumentation

Work with the people
doing the work.

LeanZero is the two of us. We scope the project, build it, test it and answer for it afterwards.

We started LeanZero after seeing migrations become expensive through layers of hand-offs and process. Our approach is practical: automate the repeatable work, keep the checks visible, and stay close to the client.

Mihai builds the Forge apps and migration tooling. Gabriela handles configuration, testing, research and documentation. Different backgrounds, one shared standard for what we deliver.

See the work

How we work together

You Get the Two of Us

No account manager and no delivery team behind a curtain. The person who scoped your migration is the one running the scripts on cutover night, and the one who answers the email afterwards.

Honest to a Fault

We will tell you when you do not need to pay us. Plenty of first calls end with a link to the Atlassian doc that solves it, and that is fine, because the next one usually is a project.

Lean by Design

The UBS migration moved 9,500 users with two people on it, because the checks, the reruns and the reports were scripted rather than staffed. No office and no bench is why the rate is €50 an hour.

Family-Run, All In

LeanZero pays the mortgage. There is no parent company to absorb a bad project, so every one gets both of us, and our name stays on it afterwards.

10+
Migration Projects

From 250 to 38,000 users — every one hands-on

60,000+
Users Migrated

UBS, SolarEdge, McLaren, OpenBet, and more

100%
Delivery Rate

On-time, on-budget — no exceptions

0
Layers of Management

You talk to us. That's it.

Let's Have a Conversation

No pressure, no sales pitch. Book a free call or join our Discord and ask us anything. If we can help, we will — if you don't need us, we'll tell you that too.

Join Our Discord

Or see what we do and get in touch your way.