SEM Marketing Specialist III

Thermo Fisher Scientific is seeking a highly motivated, analytical SEM Marketing Specialist III to own, plan, launch, maintain, and optimize paid search and shopping programs for the Biosciences Division and Genetic Sciences Division within the Life Sciences Solutions Group. This role supports a critical revenue-driving channel, delivering measurable revenue growth, Search roadmap priorities, and scalable SEM capabilities.

About the role

This is an on-site position based in an office environment. The ideal candidate will have deep hands-on experience leading enterprise-level paid search programs, with the ability to move quickly, make data-informed decisions, and prioritize work based on business impact. You will manage large advertising budgets, influence future-state Search capabilities, and drive performance as part of a collaborative digital marketing team using industry-leading platforms.

Responsibilities

• Serve as the internal SEM channel owner for assigned business units, leading day-to-day strategy, execution, measurement, and optimization of paid search and shopping programs to support revenue growth and business priorities.
• Lead multiple, simultaneous Search roadmap priorities, translating business needs into channel enhancements, testing plans, platform improvements, automation opportunities, and scalable operating processes.
• Monitor campaign performance, conduct investigative analyses, and identify opportunities to improve and optimize search campaign performance.
• Analyze, experiment with, and refine existing SEM account structures, campaign types, bid strategies, budgets, targeting methods, and creative assets to improve performance across core paid search programs.
• Evaluate, pilot, and scale emerging Search capabilities, including Performance Max, AI Max for Search, feed-based campaigns, feed readiness, creative automation, and audience signal strategies.
• Own SEM performance narratives for stakeholders and leadership, including forecasting, budget recommendations, spend pacing, attribution insights, and executive-ready reporting.
• Lead SEM knowledge-sharing sessions covering standard methodologies, strategy, industry updates, platform changes, automation, AI Search, Shopping, measurement, and testing learnings.
• Participate in scrum ceremonies and follow agile principles as part of an agile team, using project management software.

Requirements

• Bachelor’s degree (minimum educational requirement).
• 5+ years of hands-on paid search experience, including managing enterprise-scale Google Ads and Microsoft Advertising programs, large budgets, and cross-functional business stakeholders.
• Experience managing a variety of campaign types, including Search, Dynamic Search Ads, Shopping Ads, Performance Max, and other automated or AI-enabled campaign types.
• Deep understanding of automated bidding, Smart Bidding, budget pacing, audience signals, match types, query management, campaign structure, and performance tradeoffs.
• Proficiency with analytics platforms such as Google Analytics or Adobe Analytics.
• Intermediate proficiency in Microsoft Excel.
• Experience with A/B testing and implementing resulting actions.

Skills

• Excellent communication skills, with the ability to translate complex SEM performance insights into clear business recommendations.
• Ability to present to a variety of partners and leadership.
• Analytical and problem-solving skills, with the ability to analyze large data sets from multiple sources.
• Ability to leverage AI-enabled tools, automation, and platform recommendations to improve campaign performance, workflow efficiency, testing velocity, and decision-making.
• Strong time management, planning, and prioritization skills.
• Self-starter who identifies and leads process or channel improvement efforts.
• Attention to detail.
• Experience in agile methodology within a marketing organization is a plus.

Pay

The estimated salary range for this position based in California is $83,300.00–$110,000.00. This position may also be eligible for a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy.

Benefits

• A choice of national medical, dental, and vision plans, including health incentive programs.
• Employee assistance and family support programs, including commuter benefits and tuition reimbursement.
• At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability.
• Retirement and savings programs, such as a competitive 401(k) U.S. retirement savings plan.
• Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount.

Schedule

Standard work schedule (Monday–Friday).