Senior Fullstack Engineer

📋 Description

• Build and ship full-stack features that grow revenue, conversion, and retention.
• Design architecture for growth features, experiments, and monetization flows.
• Identify and build growth loops like referrals and pricing experiments.
• Use AI coding tools as a core part of your workflow and share learnings.
• Run end-to-end A/B experiments: implement, instrument, analyze, iterate.
• Mentor junior engineers and shape a fast, craft-driven engineering culture.

🎯 Requirements

• 5+ years full-stack experience with TypeScript/Node.js and React.
• Bias for action; ship quickly and learn, not deliberate.
• Fluent use of AI coding tools in daily workflow.
• Experience building/instrumenting A/B tests and feature flags.
• Comfort working close to the product; reading dashboards and metrics.
• Based in or willing to commute to Boston regularly for in-person collaboration.

🎁 Benefits

• Hybrid working in Boston - flexibility with meaningful in-person time
• Private health insurance
• Unlimited holiday allowance
• Flexible compensation card (meals, transport, childcare)
• Access to the latest AI tooling - we'll cover the subscriptions
• Opportunities for growth, learning, and career development