Stefan Gasser

Product engineering / AI tools

I build software products and custom AI tools.

I build and run software products. AutoIdle has been live since 2019, MailWizard.ai was acquired by Ramp Ventures, and I led software at ADDITIVE before focusing on product work and custom AI tools.

Stefan Gasser
Product

AutoIdle

Heroku add-on live since 2019

AI product

MailWizard.ai

Built and later acquired by Ramp Ventures

Team

ADDITIVE

Former Head of Software for a 15-person team

Selected work

Built and shipped

  1. since 2019

    product

    AutoIdle

    Heroku add-on that idles dynos when apps are not in use. Live in the Salesforce ecosystem since 2019.

    Product

  2. 2025

    acquired

    MailWizard.ai

    AI email-management product I built and later sold to Ramp Ventures.

    Announcement

  3. past role

    team leadership

    ADDITIVE

    Led software delivery and a 15-person engineering team as Head of Software.

  4. 2026

    open source

    PasteGuard

    Open-source proxy that masks names, emails, and secrets before prompts reach AI providers. 600+ GitHub stars.

    Project

  5. current

    client work

    Client automation

    AI workflows and internal tools for a professional services company.

Contact

Direct