
1 - 10 employees
Venture Capital • Open Source • Software Development
Open Core Ventures is a venture capital firm founded by Sid Sijbrandij that focuses on starting commercial open source software companies. Unlike conventional venture capital firms, Open Core Ventures does not invest in existing companies, but instead identifies open source software projects with potential, recruits passionate founders and contributors, and launches new companies around these projects. Their approach aims to provide resources and reduce barriers to entrepreneurship, creating value for the open source community. Open Core Ventures is not accepting new limited partners at the moment and is involved in various projects such as open source low-code development platforms, game development frameworks, identity management systems, and more.
🕒 January 29
🏄 California, Colorado, +6 more states – Remote
⏰ Full Time
🟡 Mid-level
🟠 Senior
👨💼 Chief Technology Officer (CTO)
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1 - 10 employees
Venture Capital • Open Source • Software Development
Open Core Ventures is a venture capital firm founded by Sid Sijbrandij that focuses on starting commercial open source software companies. Unlike conventional venture capital firms, Open Core Ventures does not invest in existing companies, but instead identifies open source software projects with potential, recruits passionate founders and contributors, and launches new companies around these projects. Their approach aims to provide resources and reduce barriers to entrepreneurship, creating value for the open source community. Open Core Ventures is not accepting new limited partners at the moment and is involved in various projects such as open source low-code development platforms, game development frameworks, identity management systems, and more.
• Define initial product vision and product roadmap • Write code, ship product, and make architectural decisions • Recruit and lead the engineering team • Partner with a CEO for go-to-market and fundraising strategies
• Deep technical expert in LLM security, ML engineering, or adjacent infrastructure • High level operational experience as a staff/principal engineer, engineering lead, or founder • Entrepreneurial mindset with a conviction about the AI security space • Strong opinions about what needs to exist and how to build it.
• Flexible work arrangements
Apply Now🕒 January 8
10,000+ employees
Lead Account Technology Strategist engaging with customers and developing technology roadmaps for Cloud Software Group. Fostering relationships and driving strategic initiatives for technology solutions.
🇺🇸 United States – Remote
💵 $123.4k - $173.4k / year
⏰ Full Time
🟠 Senior
👨💼 Chief Technology Officer (CTO)
🗣️🇫🇷 French Required
🕒 December 19, 2025
Senior Consultant GenAI/Copilots role at Wavestone, focusing on AI integration and client transformation. Collaborating on innovative AI solutions and managing digital change.
🗣️🇫🇷 French Required
🕒 December 10, 2025
Field CTO connecting technology leaders and guiding product direction for AI-enhanced software development. Championing brand reputation through technical partnerships and thought leadership.
🇺🇸 United States – Remote
💰 $412M Venture Round on 2022-04
⏰ Full Time
🟡 Mid-level
🟠 Senior
👨💼 Chief Technology Officer (CTO)
🕒 November 25, 2025
Seeking CTO co-founders to join Sisu's incubator program. Collaborate with mentors and other founders to build impactful startups.
🕒 August 11, 2025
Consultant Senior GenAI chez Wavestone, pilote l'intégration de copilots et agents IA. Déploie des solutions IA et pilote les projets chez les clients.
🗣️🇫🇷 French Required