About Role

Robert Half is thrilled to present an exceptional opportunity for a Sr Fullstack Engineer to join our client's innovative Growth team in the heart of San Francisco, California, United States. As a pivotal member of this high-impact team, you will drive the evolution of cutting-edge systems that fuel user acquisition, engagement, retention, and monetization. This role is perfect for a seasoned engineer passionate about growth hacking, scalable architectures, and delivering measurable business results. Collaborating with elite cross-functional teams—including engineering, product, design, and data science—you'll architect solutions that propel the company's trajectory in the competitive tech landscape.

In this position, you'll harness your fullstack expertise to build robust, performant applications that span frontend user experiences and backend data infrastructures. San Francisco's dynamic tech ecosystem provides the ideal backdrop for your contributions, where innovation meets real-world impact. If you're seeking a role that combines technical depth with strategic growth influence, this Sr Fullstack Engineer position at our client through Robert Half is your next career milestone.

Key Responsibilities

Core Development Duties

• Design and implement end-to-end features across the full technology stack, optimizing for user acquisition, engagement, and retention metrics.
• Develop sophisticated server-side event forwarding mechanisms while maintaining a pristine, consistent event schema across diverse platforms including web and mobile apps.

Systems and Data Excellence

• Engineer robust identity resolution and attribution systems to enable seamless user tracking, data governance, and compliance across all digital touchpoints.
• Enhance data pipelines for precise, real-time measurement supporting growth experiments, A/B tests, and attribution modeling.
• Maintain and evolve backend infrastructures, including scalable APIs, secure authentication flows, and high-availability services.

Collaboration and Optimization

• Partner with UI/UX designers to craft and iterate on high-performance landing pages and micro-tools designed to boost conversion rates and user funnels.
• Engage cross-functional stakeholders to pinpoint high-ROI growth opportunities, execute A/B testing frameworks, and deploy validated strategies at scale.
• Apply automation prowess to streamline data quality assurance, process workflows, and operational efficiencies, freeing teams for innovation.

Required Qualifications

To excel as our Sr Fullstack Engineer, you bring 7+ years of hands-on experience in fullstack development, with a focus on growth-oriented engineering. Key qualifications include:

• Deep proficiency in modern fullstack technologies, backend languages (e.g., Node.js, Python, Go), and frontend frameworks (e.g., React, Vue).
• Proven success building event-driven systems, identity management, and attribution platforms in high-scale environments.
• Expertise in data pipeline orchestration, A/B testing tools (e.g., Optimizely, GrowthBook), and analytics stacks (e.g., Segment, Mixpanel).
• Strong collaboration skills, with experience influencing product roadmaps and designer iterations for conversion-focused features.
• Bachelor's or Master's in Computer Science, Engineering, or equivalent; bonus for growth hacking or startup experience.
• Thrives in fast-paced settings, with a data-driven mindset and passion for automating tedious tasks.

Robert Half prioritizes diverse, inclusive teams—candidates from all backgrounds are encouraged to apply.

Why Join Us

Joining this Growth team via Robert Half means stepping into a role with transformative potential. Enjoy a competitive salary up to $200,000, comprehensive benefits like full health coverage, 401(k) matching, unlimited PTO, and equity incentives. Work in San Francisco's tech epicenter, surrounded by top talent and cutting-edge projects. Our client fosters a culture of innovation, autonomy, and impact, where your code directly shapes user growth and company success. With Robert Half's expertise in technology placements, you'll have seamless support throughout your journey. Apply now to elevate your career in growth engineering—Sr Fullstack Engineer roles like this fill fast in San Francisco's booming job market!

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