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LeanZero

An approachable expert helping teams simplify their Atlassian ecosystems. Sharing knowledge and building community, one solution at a time.

Services

  • Atlassian Migrations
  • Atlassian FastShift
  • Atlassian Maintenance
  • Forge App Development
  • AI Development Consultation

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LZ·/OVERVIEW·REV 2.6
Available for new projects

Atlassian & AI Expertise,Made Personal

I help teams simplify their Atlassian ecosystems and implement practical AI solutions with hands-on expertise, without enterprise overhead.

Ask on Discord
NEWTools of the MonthTwo open-source MCP servers, self-hosted by us — grab a free demo key in seconds.

MCP Web Search

Give your AI agent the live web — search, full-page & PDF extraction, GitHub reading, and cited research.

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MCP Doc Processor

Let your AI agent read, create, and edit PDF, DOCX, and Excel files — with vision OCR, Document DNA, and format-preserving edits.

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Track record · 15+ years
01

Track Record

Proven results across multiple organizations

15+ Years
Atlassian Experience
10+ Migrations
Delivered Successfully
100%
Delivery Track Record
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Services · 3 disciplines
02

Services Overview

Practical help for real problems

Atlassian
Migrations

I specialize in making complex migrations feel simple. Whether you're moving to cloud or consolidating instances, I handle technical details so you can focus on your work.

Major Migration Projects

9,500 Users - UBS

Full Jira/Confluence/Bitbucket migration with zero downtime

8,500 Users - SolarEdge

EMEA-wide migration with embedded compliance

1,200 Users - Aer Lingus

Automation reducing manual admin workload by 60%

Datacenter to Cloud

DC Migrations

Consolidations

Instance merges

Learn more

AI Implementation Advisory

Practical guidance for teams looking to use AI effectively. I focus on implementation that works, not hype or vendor marketing.

Key Achievements

Overwhelming options with unclear differentiation
Vendor-driven narratives serving them, not you
Fear of data leaving your infrastructure
Get ready to get yourself setup with LM Studio

Cutting through AI noise to find what actually works

What I Actually Deliver

Clear understanding of tools
Practical implementation strategies
Cost-effective approaches
Data sovereignty awareness
Learn more

Forge App
Development

I provide working solutions in hours, final apps in weeks depending on the scope, however expect quick iterations for an open feedback loop.

The Agentic Flow

I built my own development flow that makes building Forge apps incredibly fast

<4h

Working

<2w

Final App

5x

Faster

Not about generating code—structured workflow

Started Forge 5 Years Ago

Rapid development workflow
Modern techniques
Quality architecture
Fast iterative loops with open conversations
Learn more
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Words · 2 testimonials
03

What People Say

2 client testimonials

“LeanZero worked with UBS on migrating their infrastructure from DC to cloud—a first for the bank in this space. Each step was uncharted territory, requiring careful navigation and precise execution. LeanZero did a magnificent job managing competing priorities and stakeholder demands. We threw ideas at them constantly—this didn't make their life any easier. they handled intense pressure with welcome calmness. 100% recommended. Excellent partner to work with.”

 Geoff Robinson MFM
Geoff Robinson MFM
Managing Director - Global Head of Fundamental Analytics, UBS

“Partnering with LeanZero for three years elevated our JIRA operations at Fiskars Group. As our dedicated JIRA owner, they delivered a lightweight migration from DC to cloud and implemented technical solutions that genuinely improved how our IT team managed services—streamlining workflows and strengthening our operational foundation along the way. Their reliability and expertise made them a trusted partner throughout our engagement.”

Michael Rossi
Michael Rossi
Senior IT Manager, Service Management at Fiskars Group, Fiskars Group
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Projects · shipping
04

Featured Projects

Real solutions built for real problems

Free & Open Source

SentinelVault

A free, open-source Forge app for Confluence Cloud. Adds file locking, real-time violation detection, and automatic reversion. Available now on the Atlassian Marketplace.

Learn More
Personal Projects & Experiments

CogniRunner

AI-powered workflow validation for Jira. Add validators and conditions that use OpenAI to evaluate field content against custom prompts during workflow transitions.

View Documentation
View All Projects
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Journal · blog & tutorials
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Latest Content

Tutorials, guides, and insights from the blog

Jul 2, 2026•12 min
AI Engineering

MLX vs GGUF on Apple Silicon: Benchmarking the Same Local Model Two Ways

We built a harness that makes local coding agents produce real software, grades it by running it, and ran the same model as GGUF and MLX. Here's the harness, its modes and archetypes — and which build wins.

Read More
Jul 1, 2026•5 min
AI Engineering

Inside goose-swarm: How We Turned One Local Model Into a Self-Verifying Fleet

The engineering teardown of goose local-edition: how the scheduler, the parallel planner, the CONTRACTS discipline, the model-free judge, and the post-run smoke/AST gates are actually implemented, why each exists — and the self-driving test harness that found the failure behind every one of them.

Read Tutorial
Jul 1, 2026•5 min
AI Engineering

A Self-Verifying Swarm of Small Local Models — and Watching the Ceiling Move

We forked Block's goose into a multi-agent swarm that decomposes a hard app spec into a task DAG, runs it across three small local models on LM Studio, and makes them verify their own work by actually running it. Over six days and 300-plus commits, the last real limit stopped being the swarm's coordination and became the small model's raw coding ability — and even that ceiling moved.

Read More
View All Articles
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Start · let's talk

Atlassian & AI Expertise, Made Personal

Have something in mind? The best way to start is by asking around. Join the community or book a free call to discuss your needs.

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