The Sr Marketing Manager, Protein Sequencing Applications will play a pivotal role in shaping how Quantum-Si identifies, prioritizes, and wins in high-value application spaces. We are seeking a strategic, hands-on marketer who understands proteomics and sequencing workflows and can translate market needs into clear application requirements for R&D, while also turning product capabilities into compelling positioning, messaging, and sales tools that accelerate adoption. The ideal candidate will thrive in a scrappy startup environment, think creatively, operate with urgency, and partner across commercial and technical teams to deliver measurable business results.

As part of our team, your core responsibilities will be:

• Application & Portfolio Strategy: Own the application marketing strategy for Quantum-Si's protein sequencing portfolio, identifying target segments, workflows, and use cases that can drive adoption, utilization, and long-term growth.
• Voice of Customer & Market Insight: Build and maintain a deep understanding of customer needs, workflow pain points, market trends, and competitive dynamics across academic, biopharma, translational, and other priority segments.
• Product Requirements Translation: Translate customer insight, application needs, and workflow requirements into clear, prioritized inputs for R&D. Partner on tradeoff decisions to ensure the roadmap aligns to the highest-value business opportunities.
• Positioning & Messaging: Develop differentiated positioning, value propositions, and messaging frameworks that translate product attributes into compelling sales messages and application stories positioned to win.
• Go-to-Market Execution: Lead go-to-market planning for new applications, workflows, and capabilities, coordinating across marketing, sales, scientific affairs, and field applications to drive successful launches.
• Content & Sales Enablement: Create high-impact commercial content, including presentations, web copy, battlecards, case studies, white papers, and objection-handling tools, and equip Sales and Field Applications teams with the training and materials needed to communicate value consistently.
• Customer & Ecosystem Engagement: Engage directly with customers, key opinion leaders, early adopters, and partners through meetings, conferences, advisory boards, and field interactions to refine application strategy and uncover new growth opportunities.
• Cross-Functional Leadership: Serve as a central point of coordination across R&D, application development, sales, operations, and marketing. Bring an ownership mindset, willingness to roll up your sleeves, and the agility to deliver results in a fast-moving startup environment.

Qualifications

Baseline skills/experiences/attributes:

• Bachelor's degree in life sciences, marketing, business, or a related field required; MBA, MS, or PhD a plus.
• 8+ years of product marketing, product management, strategic marketing, or related experience in life sciences, proteomics, genomics, sequencing, or molecular biology markets.
• Direct experience in proteomics applications is preferred; experience in protein sequencing or adjacent sequencing applications is strongly preferred.
• Demonstrated success translating customer insights, workflow needs, and market dynamics into product requirements, application strategy, and commercial action.
• Experience marketing complex technical products, ideally spanning instruments, consumables, software, and integrated workflow solutions.
• Strong understanding of proteomics, sequencing, and molecular biology workflows, customer segments, and application use cases.
• Proven ability to develop positioning, messaging, and commercial content that resonate with both technical and non-technical audiences.
• Experience supporting new product introductions and commercialization in a fast-moving environment.
• Strong analytical skills with the ability to synthesize market, competitive, and business performance data into clear recommendations.
• Ability to own long-term strategy while driving executional detail and delivering against dynamic timelines.
• Demonstrated ability to influence cross-functional teams and build credibility across functions and levels.
• Excellent written and verbal communication skills, including executive-level presentations and sales enablement/training.
• Ability and willingness to travel up to 25% including occasional weekends and international travel.

Ideally, you also have these skills/experiences/attributes:

• Experience in startup or high-gr