Senior Growth Strategist, Apps

Company: System1
Location: Los Angeles
Posted on: February 16, 2026

Job Description:

Job Description Job Description We’re looking for a full-stack growth marketer who thrives at the intersection of performance marketing, technical execution, and creative experimentation. This is a hands-on role designed for someone who can take new consumer products (both ad-supported and subscription) from zero to scale — iterating quickly, experimenting relentlessly, and uncovering the breakout opportunities that drive real growth. You’ll own the full growth stack: some days you’ll be knee-deep in attribution setup, conversion tracking, and analytics; other days you’ll be testing creative hooks, launching campaigns across ad platforms, and optimizing bids and audiences in real time. Most importantly, you’ll be hunting for growth levers — finding pockets of opportunity, validating them with rapid tests, and scaling what works. This position is an onsite role requiring you to work in our headquarters located at 4235 Redwood Ave. Los Angeles, CA 90066. What You'll Do: Build and execute go-to-market growth strategies for early-stage products. Identify, validate, and scale high-impact acquisition channels, audiences, and creative angles. Launch and manage campaigns across Search, GDN, Meta, TikTok, YouTube, Native, and other paid platforms. Develop and run structured experiments to test messaging, funnels, and targeting hypotheses. Work directly with engineers or code yourself to wire up analytics, attribution, and conversion tracking (e.g., GA4, Mobile Measurement Partners (MMPs), Amplitude, etc.). Analyze performance data and rapidly iterate on creative, targeting, landing pages, and funnel flows. Create and manage short-form video ads and other creative assets that drive conversions. Frequently collaborate cross-functionally with leadership, product managers and engineering leads to align growth efforts with product evolution. What We’re Looking For: 5-7 years experience driving growth for early-stage consumer products or startups. Deep, hands-on experience owning performance and spend in at least one major buying platform (e.g., Meta, Google Ads, TikTok, or programmatic) Deep understanding of ad platform mechanics across Search, GDN, Social, Video, and Native. Strong technical skills — comfortable working with tracking pixels, APIs, scripts, and analytics tools. Proven track record of taking a product from 0?1, finding breakout opportunities, and scaling them into meaningful revenue. Obsessed with experimentation and able to manage rapid test-and-learn cycles, sharing results with high levels of leadership across multiple products. Creative, analytical, and adaptable — able to move seamlessly from strategy to execution. What We Have To Offer: Competitive salary bonus equity Generous PTO 11 company holidays Open sick time 100% covered Medical, Dental, Vision for employees 401k with match Health & Dependent Care Flex Spending Account Paid professional development Leadership & growth opportunities Virtual company and team building events The U.S. base salary range for this full-time position is $133,000 - 182,875 bonus equity benefits. Our salary ranges are determined by role, level, and location. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process. Please note that the compensation details listed in U.S. role postings reflect the base salary only, and do not include bonus, equity, or benefits. System1’s headquarters is located in Marina del Rey, CA with an additional office in Bellevue, WA. Employees near office locations are returning to the office. Equal Employment Opportunity: System1 provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Keywords: System1, Fullerton , Senior Growth Strategist, Apps, PR / Public Relations , Los Angeles, California