Senior Full Stack Engineer, Givebutter

• 5+ years of Engineering experience working in-house to build web applications at scale
• Strong proficiency in modern JavaScript/TypeScript and React
• Experience with PHP and MVC frameworks (Laravel preferred but not required)
• Experience with A/B testing, feature flags, and experimentation platforms
• Comfort with SQL and data analysis to measure experiment impact
• Track record of working on cross-functional teams with Product and Design
• Experience debugging code and applications in production
• Ability to balance speed of iteration with code quality and technical debt

Desirable

• Givebutter is looking for a Senior Full-Stack Engineer to join our Growth team, focusing on acquisition
• You'll own experiments that directly impact our nonprofit acquisition funnel and activation rates
• Working in a high-tempo experimentation culture, you'll ship fast and learn from real user behavior
• Design, build, and ship experiments that improve our key business metrics
• Collaborate with PM, Design, and Marketing to rapidly prototype and test new user experiences
• Implement robust A/B testing infrastructure and ensure rigor in experiment design
• Build full-stack features spanning React, Laravel, and data integrations
• Evaluate and apply AI and machine learning tools – such as LLMs, recommendation systems, or predictive analytics – to drive innovation in product development
• Analyze experiment results using SQL and analytics tools to derive actionable insights
• Champion growth engineering best practices while maintaining code quality and system reliability
• Perform peer code reviews, ensuring that code meets acceptance criteria, adheres to our code guidelines, and follows engineering best practices
• Contribute to growth team’s experimentation roadmap and technical strategy

• Deadline to Apply July 1, 2025 at 5:00 AM UTC
• Recruiter Screen: A 30-minute conversation to learn more about your background, walk through the role, and ensure mutual alignment on expectations, values, and logistics
• Hiring Manager Interview: A deeper dive into your relevant experience, skillset, and working style. This is your first opportunity to connect directly with the person who may be your future manager
• Assessment (technical or non-technical): This stage will vary based on the role. It could involve a live coding session, case study, or take-home project. Some roles may include two parts to this stage to evaluate both practical skills and problem-solving approaches
• Values Interview: A conversation with team members focused on how you align with our core values and leadership principles
• References: We connect with a few folks you’ve worked closely with to get a better picture of your working style and impact
• Offer: If all goes well, we’ll move to the offer stage!
• Please note, we will have an AI note-taking tool (Elly) join most of our interviews