Lead Engineer / Tech Lead, Growth

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Lead Engineer / Tech Lead, Growth in the United States. This role is a critical leadership position on a fast-growing Growth engineering team, responsible for optimizing the full customer acquisition funnel from initial signup through checkout. The Lead Engineer will split time between hands-on coding and team management, driving experiments that improve conversion and retention metrics while ensuring high-quality user experiences. You will collaborate closely with product, design, and data teams to deliver full-stack features, implement experimentation infrastructure, and continuously optimize subscription and pricing flows. This role requires a strong technical leader who can mentor engineers, design scalable solutions, and leverage AI-assisted development tools to accelerate shipping. The work is fully remote, high-impact, and directly tied to the company's top-line growth. Accountabilities • Lead and manage a small team of engineers, providing mentorship, 1:1 coaching, pair programming, and career development guidance. • Design, ship, and optimize full-stack features across the acquisition funnel using Ruby on Rails, React, and TypeScript. • Plan and execute A/B experiments for signup flows, checkout processes, plan pricing, and product recommendations, balancing conversion and retention goals. • Build and maintain infrastructure for experimentation, analytics, and cohort-level tracking of retention metrics. • Collaborate with product and design teams to define experiment designs, sample sizing, metrics selection, and trade-offs for growth initiatives. • Drive adoption of AI-assisted development tools across the team to increase development velocity and efficiency. • Ensure the acquisition funnel is scalable, reliable, and delivers high-quality user experiences aligned with growth objectives. Requirements • Proven experience leading a team of 4–8 engineers, with direct reports, growth, and retention of talent. • Strong hands-on experience in Ruby on Rails and React; knowledge of Node.js or Python is a plus. • Demonstrated experience shipping growth experiments in subscription products, including funnels, checkout optimization, and pricing architecture. • Ability to design experiments, select appropriate metrics, calculate sample sizes, and communicate trade-offs to stakeholders. • Strong understanding of funnels, cohort analysis, and event-sourced or similar architectures. • Experience with agentic AI coding tools (e.g., Claude Code, Devin, Cursor) and integrating them into development workflows. • Comfortable in a remote, fast-paced, and collaborative environment across North American time zones. • Nice to have: experience with healthcare, wellness, or regulated subscription commerce; Stripe, Klarna, or similar payment platforms; Amplitude, Optimizely, or LaunchDarkly experimentation platforms. Benefits • Competitive salary range and equity in the company. • Full suite of health benefits including medical, dental, and vision coverage (U.S. & Canada). • Flexible vacation and time-off policies. • Opportunities to lead and grow a high-impact team in a fast-scaling company. • Remote work with collaboration across North American and Latin American time zones. • Exposure to cutting-edge experimentation, analytics, and AI-assisted development tools. Why Apply Through Jobgether? We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. 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.