Senior Software Engineer, Growth

Develop and execute engineering strategies that enable rapid experimentation and data-driven decision-making

Collaborate cross-functionally with Product, Design, Marketing, Data Science, and Engineering to optimize key growth metrics and contribute to core product initiatives

Architect and build scalable systems that support growth initiatives, such as onboarding flows, personalization engines, and viral loops

Implement A/B testing 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

Produce clean, well-structured, well-documented code and implement pixel-perfect designs that work across browsers, per spec

Help maintain code quality, organization, automation, and continuous delivery

Ensure technical excellence through best practices in performance optimization, security, and scalability

Effectively communicate development progress or blockers to the product lead, engineering manager, and other stakeholders

Work effectively as part of a large global team; attend and engage in stand-ups, team meetings, and manager 1:1s

Give and receive constructive feedback and praise

Proactively acts without being told what to do; identifies areas of improvement and drives best practices to deliver high-quality, performant, scalable solutions

Takes ownership over everything shipped

Communicates effectively, clearly, and concisely — technical and non-technical, written and verbal — and actively listens to ensure understanding

Helps teammates overcome obstacles, resolve blockers, and complete work; shares credit where due

Actively seeks out and acts on feedback as a tool for growth

Confident in owning their role and bringing creative ideas to users

Excellent leadership and stakeholder management skills

Comfort with ambiguity and a bias toward action; obsession with metrics (LTV, CAC, retention) and rapid iteration

Proven experience leveraging AI tools to enhance software development (code generation, debugging, productivity optimization), with fluency integrating AI-driven solutions into your workflow and a willingness to stay current with emerging AI technologies

BS in Computer Science, or equivalent

Minimum 5 years of industry experience in frontend or full-stack development, building large-scale applications

Proficiency in JavaScript (ES6)/TypeScript, React, Redux, HTML, CSS, and at least one backend language (Ruby/RoR, Python, or Node.js)

Experience with cloud infrastructure (AWS/GCP) and REST APIs

Experience with analytics tools (Amplitude, Mixpanel, Google Analytics) and A/B testing platforms (e.g., Optimizely, LaunchDarkly, Segment)

Familiarity with growth frameworks (e.g., Pirate Metrics, viral loops)

Strong UX and product sense, with the ability to negotiate the right MVP

Strong attention to detail; interest in building UI with performance, accessibility, and scalability in mind

Experience with growth at a startup or scaling product

Knowledge of SEO, CRM tools (Braze, HubSpot), or marketing automation

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.

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 invest deeply in your growth, ensuring you have the resources, support, and autonomy to own your role and make a real impact. Collaboration is at our core—we’re all for one, meaning you’ll have a team across departments ready to help you succeed. We encourage bold ideas and courageous action, giving you the freedom to experiment, take smart risks, and drive big wins.

If you’re looking for a place where your work matters, where you can push boundaries, and where your career can thrive—Apollo is the place for you.

Learn more here!