Senior Marketing Specialist
BillionToOne
Summary
As a Senior Marketing Specialist at BillionToOne, you will play a critical role in bringing our marketing programs to life across channels. You will support the Marketing team by owning the day-to-day execution of marketing campaigns, managing our library of customer-facing collateral, coordinating projects and workflows, and helping ensure high-quality work moves efficiently from concept through launch.
Job description
Responsibilities
Campaign & Channel Execution
- Support lifecycle and integrated campaigns across email, webinar, SMS, direct mail, digital advertising, web, social, and sales channels, including product launches and newsletters.
- Build, test, and deploy campaigns and automations, coordinating audiences, segmentation, personalization, content, tracking, and QA.
- Support targeted programs including A/B tests, nurture campaigns, account-based marketing (ABM), and executive outreach, coordinating execution and documenting learnings.
- Monitor and report on campaign performance and program health, identifying opportunities to improve engagement and conversion.
Marketing Collateral & Content Management
- Own the day-to-day management of BillionToOne's customer-facing marketing collateral, ensuring materials are current, accurate, organized, and readily accessible to internal teams.
- Coordinate the production, printing, inventory, and distribution of marketing materials, including brochures, flyers, sales collateral, event materials, and other customer-facing assets.
- Manage updates and rollouts of new or revised collateral across relevant teams and channels, ensuring outdated materials are appropriately retired.
- Maintain organized content libraries and processes that make it easy for Sales and other internal teams to find and use approved materials.
Social Media
- Full ownership of the day-to-day execution of BillionToOne's social media channels, translating the broader brand and communications strategy into an engaging and consistent social presence.
- Develop and maintain the social content calendar in partnership with the rest of the Marketing team and other stakeholders.
- Draft, coordinate, schedule, and publish social content across corporate and product initiatives, including company news, product updates, scientific milestones, events, thought leadership, and employee stories.
- Monitor channel performance and audience engagement, reporting on key metrics and applying learnings to continuously improve content.
Project & Workflow Management
- Support project and workflow management across the Marketing team, maintaining timelines, trackers, approvals, deliverables, and clear ownership to help work move efficiently from concept through launch.
- Identify opportunities to streamline recurring processes and improve how the team organizes and executes work.
Requirements
- Bachelor's degree in Marketing, Communications, Business, or a related field
- 3-5+ years of experience in marketing, marketing operations, campaign management, communications, or a related role
- Highly organized with exceptional attention to detail and demonstrated ability to manage multiple projects and deadlines simultaneously
- Experience executing marketing campaigns across channels such as email, social media, digital advertising, and/or web
- Experience managing social media channels and developing social content for a brand or organization
- Excellent analytical skills for interpreting and applying insights to campaigns
- Strong written and verbal communication skills with excellent proofreading and quality-control instincts
- Comfortable working with marketing technology, project management, and content management tools; experience with platforms such as Salesforce, Customer.io, Sequel.io, HubSpot, Marketo, Asana, Sprout Social, or similar tools
- Strong project management skills and ability to proactively drive work forward across multiple stakeholders
- Comfortable operating in a fast-paced environment where priorities can evolve quickly
- Resourceful, collaborative, low-ego team player who is willing to jump in wherever needed to help the broader team succeed
- Healthcare, diagnostics, biotech, medtech, or other regulated-industry experience is a plus
Benefits
- Medical, Dental & Vision
- Family Bonding Leave
- Fertility Benefits
- 401(k) Matching
- Paid Time Off
- On-site Lunches
- Gym Access
- EV Charging
- Equity Options
- Corporate Bonus Program
Company overview
BillionToOne is a precision diagnostics company headquartered in Menlo Park, California, founded in 2016 with a mission to make molecular diagnostics more accurate, efficient, and accessible. The company has developed a proprietary Quantitative Counting Templates (QCT) molecular counting platform that can accurately count DNA molecules at the single-molecule level, enabling unprecedented sensitivity in disease detection. BillionToOne operates as a publicly traded company on NASDAQ under the symbol BLLN, having completed a successful IPO in 2025. The company's diagnostic platforms include UNITY Complete for non-invasive prenatal testing, which assesses fetal risk for recessive conditions and aneuploidies from a single maternal blood sample, and Northstar oncology products for cancer therapy selection and treatment response monitoring. With over 500 employees and multiple CLIA/CAP accredited laboratories, BillionToOne represents a significant advancement in quantitative molecular diagnostics, combining breakthrough science with scalable commercial operations to transform healthcare delivery.