Senior Product Marketing Manager

LightSource; San Francisco (CA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Top-of-market base compensation

Platinum-level healthcare, 100% covered

Unlimited vacation and sick days

Free food (3 meals a day)

Frequent team offsites and events

Job summary

LightSource is seeking a Senior Product Marketing Manager to shape and own the market positioning of their next-generation procurement software. This role requires an experienced professional who can create compelling messaging for procurement leaders and manage various marketing initiatives. The ideal candidate will have 5–8 years in product or content marketing within a B2B SaaS context, strong writing abilities, and a proven track record in buyer research and cross-functional collaboration. The position offers competitive compensation along with health benefits and a dynamic work environment.

Qualifications

• 5–8 years in product marketing or content marketing at a B2B SaaS company.
• Strong writing skills to translate technical capabilities into business value.
• Experience supporting enterprise or mid-market sales cycles.

Responsibilities

• Own and refine LightSource's positioning and messaging.
• Develop buyer personas based on thorough research.
• Drive product launches from messaging to rollout.

Skills

Product marketing

Content marketing

B2B SaaS

Buyer research

Cross-functional leadership

Job description

About LightSource

LightSource is building the next-generation operating system for Procurement. Sales has Salesforce. HR has Workday. Procurement is next. We build SaaS software that helps procurement leaders discover vendors, manage negotiations, and buy intelligently.

Our team is small but growing quickly, backed by top-tier investors and already winning enterprise customers. We're tackling a massive market filled with complex, high-impact problems. The team includes people who've helped build companies like Tesla, Waymo, McKinsey, and Google X. We hire exceptional people, move quickly, give direct feedback, expect excellence, and have a lot of fun doing it.

About the Role

We’re looking for a Senior Product Marketing Manager — someone who can own how LightSource is understood in market and help build the PMM function from the ground up. This isn't a typical PMM role. You won't inherit someone else's positioning — you'll sharpen and own it. You’ll work closely with product, sales, and leadership to craft messaging that lands with procurement and operations leaders, and produce the content that puts those ideas in front of the right people.

The right person will combine strategic depth with a writer's instincts and a builder’s work ethic. You know how to market technical products to skeptical industrial buyers — and you've found a way to do it credibly. You will be the person who defines how LightSource is talked about, sold, and remembered.

Role & Responsibilities

• Own and continuously refine LightSource's positioning, messaging architecture, and ICP definition
• Develop buyer personas grounded in real customer and prospect research, win/loss interviews, sales call analysis, and market study
• Drive product launches end to end: messaging, internal enablement, external assets, and coordinated rollout with sales and demand gen
• Build and maintain a core sales enablement library: one-pagers, battlecards, objection handling guides, and ROI frameworks
• Own the content strategy and editorial calendar — set priorities, write or commission key pieces, and maintain quality across all formats
• Write thought leadership content (long-form, point of view, research-backed) that builds LightSource's credibility in supply chain and procurement circles
• Partner with demand gen on campaign messaging, AEO visibility, and analyst and press narratives
• Track competitive positioning and maintain clear, current battlecards
• Help hire and mentor future PMM and content hires as the team grows

About You

You're not looking to maintain a positioning doc someone else wrote — you want to own the narrative. You've done this for a technical product with a complex buying process and you know how to bring rigor and creativity to both. You thrive in environments where strategic thinking and getting your hands dirty are equally expected. You might be a great fit if you:

• Have 5–8 years in product marketing or content marketing at a B2B SaaS company
• Are a strong writer who can translate technical capabilities into business value without losing precision or credibility
• Have a track record of conducting and applying buyer research to improve messaging and win rates
• Have experience supporting enterprise or mid-market sales cycles with high-quality enablement materials
• Are comfortable leading cross-functional workstreams — you know how to align product, sales, and marketing without owning everything
• Thrive in fast-moving startup environments with high autonomy and high expectations
• Want to grow into leadership and help build a team over time
• Value direct feedback and continuous improvement

Comp & Benefits

• Top-of-market base compensation with meaningful early-employee equity
• Platinum-level healthcare, 100% covered for employees
• Dental and vision, 100% covered
• 401(k) program
• Unlimited vacation and sick days
• Free food (3 meals a day, if desired) in office locations
• Frequent team offsites, events, dinners, and weekend trips

Bonus Points

• Located in (or willing to relocate to) San Francisco, Boulder/Denver, or Seattle
• Background in or deep familiarity with supply chain, procurement, or industrial operations
• Experience marketing AI or data intelligence products to non-technical buyers
• Analyst relations or media experience
• You can code in Rust (kidding... unless?)