Senior Software Engineer, Growth
Posted 6hrs ago
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Job Description
Senior Growth Software Engineer building scalable AI-powered growth systems for Apollo.io, a go-to-market platform. Optimizing user engagement, experimentation, and revenue-team workflows.
Responsibilities:
- Develop and execute engineering strategies enabling rapid experimentation and data-driven decision-making
- Collaborate with Product, Design, Marketing, Data Science, and Engineering to optimize growth metrics and contribute to core product initiatives
- Architect and build scalable systems supporting onboarding flows, personalization engines, and viral loops
- Implement A/B testing and data instrumentation for accurate experiment tracking and measurement
- Leverage automation and machine learning to optimize user engagement, reduce churn, and personalize user experiences
- Produce clean, well-structured, documented code and implement pixel-perfect, cross-browser designs
- Maintain code quality, organization, automation, and continuous delivery
- Ensure technical excellence in performance optimization, security, and scalability
- Communicate development progress and blockers to the product lead, engineering manager, and stakeholders
- Work effectively as part of a large global team and participate in stand-ups, team meetings, and manager 1:1s
- Give and receive constructive feedback and praise
Requirements:
- Proven experience leveraging AI tools to enhance software development, including code generation, debugging, and productivity optimization
- Fluency integrating AI-driven solutions into the software development workflow and 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 and interest in building UI with performance, accessibility, and scalability in mind
- Proficiency in English implied by the English-language role and communication requirements; no explicit language requirement stated
Benefits:
- Permanent employment role ("Umowa o pracę") and not a B2B contract
- Open and collaborative work environment
- Hands-on mentorship, both receiving and giving
- Opportunities to grow and accelerate your career
- Resources, support, and autonomy to own your role and make a real impact
- Cross-departmental collaboration and team support
- Freedom to experiment, take smart risks, and drive big wins

















