Product Marketing Manager
RadixArk
CA$160,000 - CA$300,000 / year
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Description
About the Role
Key Responsibilities
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Product Positioning & Messaging: Own product positioning and messaging for SGLang, Miles, and the broader platform. Build and maintain buyer personas and ideal customer profiles to guide segmentation and storytelling. Translate complex technical capabilities such as inference optimization and RL post-training into clear, differentiated value for distinct audiences. Partner with engineering and product to turn new releases and features into market-ready narrative as soon as they ship.
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Go-to-Market & Launches: Own the go-to-market strategy and launch calendar for new products and major updates, coordinating the cross-functional work needed to land them. Produce sales and partner enablement assets including pitch decks, battlecards, case studies, and benchmark narratives. Ensure consistent messaging across every touchpoint, from website and social to partner co-marketing and events.
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Field Events & Activations: Plan and execute RadixArk's field programs end to end, including developer meetups, partner activations, and industry conference presence. Own agenda, speakers, vendors, on-site execution, and post-event follow-up, not just the brief. Because the messaging originates with you, you keep the content and the experience aligned, and you tie each program back to community growth, adoption, and pipeline.
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External Communications & Issue Response: Shape RadixArk's external voice across announcements, statements, and executive-facing narrative. Build relationships with media, analysts, and technical influencers. When sensitive situations arise, such as a partner omitting our contribution from their messaging, a contested benchmark, or a community controversy, assess quickly whether and how to respond, set the right framing and channel, and write the response yourself.
Qualifications
Minimum Requirements
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5+ years of product marketing experience, ideally in AI infrastructure, developer tools, cloud, or open source.
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A proven track record translating complex technical products into business-oriented messaging for developers, partners, and buyers.
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Demonstrated ownership of product launches and go-to-market plans with measurable awareness, adoption, or pipeline impact.
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Hands-on field event experience, with the ability to run a meetup, summit, or conference presence yourself rather than only directing an agency.
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Outstanding writing and editorial judgment across positioning, long-form content, and short-form public statements.
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Sound judgment and composure in sensitive external situations, with the ability to draft clear public-facing responses under time pressure.
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Self-starter who can identify opportunities and drive initiatives independently with minimal oversight.
Preferred (Bonus) Qualifications
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Solid understanding of AI/ML infrastructure, including LLM serving, distributed training, and GPU optimization.
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Experience working with or marketing a popular open source AI/ML project.
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Existing relationships with media, analysts, or technical influencers in the AI infrastructure space.
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Experience building or scaling a product marketing function, with the appetite to grow into a team lead.
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Bilingual in Chinese and English, comfortable aligning internally in Chinese and producing external content in English.
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Active presence in developer or AI communities such as GitHub, Twitter/X, Discord, or Reddit.
About RadixArk
RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (30K+ GitHub stars, the fastest open LLM serving engine), and developed Miles (our large-scale RL framework). Founded by AI infrastructure veterans from xAI and NVIDIA, we're on a mission to democratize frontier-level AI infrastructure by building world-class open systems for inference and training. Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastructure that powers leading AI companies and research labs.
Compensation
Depending on background, skills, and experience, the expected annual salary range for this position is $160,000 - $300,000 USD + equity.
Equal Opportunity
RadixArk is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.
Benefits
- stock options
About this role
RadixArk is looking for a Product Marketing Manager to own the market positioning and adoption narrative for SGLang, Miles, and their open source infrastructure stack. You'd be the primary bridge between their engineering team and the developers, partners, and buyers deciding to adopt these systems—which already serve billions of tokens daily across leading AI companies. This role sits at the intersection of strategic positioning and hands-on execution: you'll define messaging for deeply technical products like inference optimization and RL post-training, own launch calendars and go-to-market plans, and translate complex capabilities into clear value for distinct audiences.
The work extends well beyond messaging documents. You'll plan and run RadixArk's field programs end to end—developer meetups, partner activations, conference presence—keeping content and experience aligned with community growth and pipeline goals. You'll also be the steady external voice, building relationships with media and technical influencers, and handling sensitive situations with sound judgment and speed, from contested benchmarks to community controversies. This demands someone who can write well, move fast independently, and own outcomes across awareness, adoption, and revenue impact.
You'll need at least five years of product marketing experience, ideally in AI infrastructure or developer tools, plus a proven track record launching products and running field events yourself rather than directing agencies. Strong writing, editorial judgment, and composure under pressure are essential. Experience with open source projects, familiarity with LLM serving and GPU optimization, and existing relationships in the AI infrastructure community are valuable. The role is full-time, in-office in Palo Alto, with a salary range of $160,000–$300,000 plus equity.
How this employer is doing
average
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Typical pay for this role
$140,000
Typical range: $100,000 to $140,000
This role's local market on JobMinglr
Pay for this role
$160,000 to $300,000 per year
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