Digital Defiance is about Open Source Engineering

We are thrilled to announce a pivotal evolution in Digital Defiance’s identity – our new tagline is now “Open Source Engineering Guild”, transitioning from the earlier “Open Source Software Engineering Guild”. This strategic shift reflects our intent to broaden our scope and inclusivity beyond software, to encompass other open source domains like FPGAs and hardware designed through software.

Accompanying this change, we’ve revised our Bylaws and other key texts, reinforcing our commitment to supporting all aspects of open-source engineering. This is an exciting leap forward in our journey, allowing us to foster an even more diverse community of Open Source specialists and enthusiasts. Stay tuned for more updates!


  • Jessica Mulein

    Jessica Mulein's dedication to technology began at the tender age of 12, setting the foundation for her future endeavors. In 1995, she co-founded Silicon Connections, an Internet Service Provider that remains active under the leadership of her co-founder. Jessica's career path led her to Microsoft, marking a notable chapter in her professional journey. Parallel to this, her unwavering commitment to Open Source inspired the establishment of Digital Defiance in 2022, which was incorporated in 2023. Even in its early stages, Digital Defiance is actively exploring promising opportunities, such as corporate matching and giving programs. Today, alongside her role at Microsoft, Jessica provides strategic direction as the President and Chief Operating Officer of Digital Defiance.

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