Senior Growth Engineer

Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the world's largest enterprises. Founded in 2015, the company is one of the fastest growing companies in SaaS, raising approximately $250 million to date and valued at $1.6 billion. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers. Apollo raised a series D in 2023 and is backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more, and counts the former President and COO of Hubspot, JD Sherman, among its board members.

We’re looking for a Growth Engineer to join our team and accelerate our product’s growth through rapid experimentation, data analysis, and scalable technical solutions. You’ll work at the intersection of engineering, product, and marketing to optimize funnels, automate growth loops, and implement features that drive measurable impact.

Key Responsibilities:

• Develop and execute engineering strategies that enable rapid experimentation and data-driven decision-making.
• Collaborate cross-functionally with Product, Marketing, Data Science, and Engineering teams to optimize key growth metrics.
• Architect and build scalable systems that support growth initiatives, such as onboarding flows, personalization engines, and viral loops.
• Implement A/B testing frameworks and data instrumentation to ensure accurate tracking and measurement of experiments.
• Leverage automation and machine learning to optimize user engagement, reduce churn, and personalize user experiences.
• Ensure technical excellence through best practices in performance optimization, security, and scalability.

Qualifications 

• Proficiency in full-stack development (e.g., JavaScript/TypeScript, React, Python, RoRm or Node.js) and cloud infrastructure (AWS/GCP).
• Experience with analytics tools (Amplitude, Mixpanel, Google Analytics) and A/B testing platforms (e.g., Optimizely, LaunchDarkly, Amplitude, Segment, Mixpanel, or Google Analytics)
• Familiarity with growth frameworks (e.g., Pirate Metrics, viral loops).
• Excellent leadership, communication, and stakeholder management skills.

Mindset 

• Obsession with metrics (LTV, CAC, retention) and rapid iteration.
• Comfort with ambiguity and bias toward action. 

Nice-to-haves 

• Familiarity with AI or LLM tools
• Experience with growth at a startup or scaling product.
• Knowledge of SEO, CRM tools (Braze, HubSpot), or marketing automation.

The listed Pay Range reflects base salary range, except for sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commission/sales bonus targets and annual base salary for the role. This pay range may be inclusive of several career levels at Apollo and will be narrowed during the interview process based on a number of factors, including the candidate’s experience, qualifications, and location. Applicants interested in this role and who are not located in the US may request the annual salary range for their location during the interview process.

Additional benefits for this role may include equity; company bonus or sales commissions/bonuses; 401(k) plan; at least 10 paid holidays per year, flex PTO, and parental leave; employee assistance program and wellbeing benefits; global travel coverage; life/AD&D/STD/LTD insurance; FSA/HSA and medical, dental, and vision benefits.

Annual Pay Range$156,000—$195,000 USD

We are AI Native

Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here.

Why You’ll Love Working at Apollo

At Apollo, we’re driven by a shared mission: to help our customers unlock their full revenue potential. That’s why we take extreme ownership of our work, move with focus and urgency, and learn voraciously to stay ahead.

We i