Member of Technical Staff - Product Manager OSS

Reflection • London, New York

30d

About The Position

Reflection’s mission is to build open superintelligence and make it accessible to all. We’re developing open weight models for individuals, agents, enterprises, and even nation states. The role of a Product Manager (PM) at Reflection involves owning a product end-to-end. This includes working directly with research to shape product development, driving the product surface, managing open-source releases and community engagement, building ecosystem and partner relationships, and leading the go-to-market strategy. This is a broad role with no separate specialized leads for OSS, ecosystem, or product marketing.

Requirements

• Shipped model releases or developer-facing products in OSS or AI and can talk specifically about what went wrong, what you cut, and what the metrics actually did.
• Understand how OSS success works beyond stars and downloads — contribution health, downstream adoption, ecosystem dynamics, commercial reciprocity.
• Can hold your own externally with senior partners and in public forums, not just inside the building.
• Have changed your mind because of feedback from a researcher or engineer and can describe the specifics.

Responsibilities

• Work directly with research leads to shape model releases and product direction — including what gets cut and when
• Own the open-source release end-to-end: licensing, documentation, community, contribution health
• Build and maintain partner and ecosystem relationships (inference providers, cloud partners, developer platforms)
• Lead the GTM motion for your product area — positioning, launch, developer adoption
• Define and instrument success metrics that tell you whether the bet is working, not just whether you shipped

Benefits

• Comprehensive medical, dental, vision, life, and disability insurance.
• Fully paid parental leave for all new parents, including adoptive and surrogate journeys.
• Financial support for family planning.
• Paid time off when you need it.
• Relocation support.
• Lunch and dinner are provided daily.
• Regular off-sites and team celebrations.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed