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Founder of Bethemesh · Software Architect

Yann Bastien

I build online tools that get the job done without asking you to upload your files.

Latest publication :

At a glance

Experience
18 years building business applications
Technologies
.NET, Angular, TypeScript, SQL
Career path
Engineer, then software architect
Bethemesh
Launched in July 2026

Areas of expertise

  • Software architecture
  • Full-stack development
  • Business applications
  • Code performance and quality
  • CI/CD and delivery automation

About

I have been a developer since 2008. I have spent most of my career designing business applications for large companies, SMEs and public-sector organizations, first as an engineer and later as a software architect.

In my day-to-day work, I see simple tasks become tedious: converting a file, cleaning a table, running a calculation again. And far too often, the online solution requires an account or asks you to upload confidential documents.

I created Bethemesh for those moments: tools that run in the browser, without an account, and that you can chain together in the Workspace when a task comes up regularly.

Latest articles

All resources
GuideConcepts and technologiesBeginner

Burn rate and runway: how long can cash last?

Manage business finances

Learn how burn rate and runway are calculated, the difference between gross and net burn, and why runway is not a full cash forecast.

25 September 20262 min