Senior Software Engineer, Growth

🕒 August 21

🇵🇱 Poland – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Apollo.io

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2015

🤝 B2B

☁️ SaaS

🤖 Artificial Intelligence

B2B • SaaS • Artificial Intelligence

Apollo. io is an all-in-one sales platform designed to streamline and enhance sales operations from lead generation to deal management. The platform offers tools for contact and account search, scores and signals analysis, inbound optimization, sales engagement, and more, leveraging AI and a living data network for comprehensive sales intelligence. Apollo. io is ideal for sales professionals, marketers, and revenue operations teams aiming to enhance productivity and efficiency by automating workflow tasks and integrating CRM systems. With a focus on improving sales performance through analytics and conversation intelligence, Apollo. io helps businesses find the right leads at the right time, nurture those leads effectively, and close deals efficiently.

📋 Description

• 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