Senior Backend Engineer, Growth Platform

The role

You will architect and build an event-driven growth engine that ingests customer signals to power decision-making. You will own services and data pipelines that evaluate user context and trigger outreach.

What you will do

• Architect, build, and scale backend services that ingest and unify customer data
• Design decision engines and business logic to orchestrate outreach
• Partner with product, data, and machine learning colleagues
• Own services end to end from code quality to reliability
• Spot gaps in customer service and drive the fix
• Mentor engineers and help shape the engineering roadmap

Required qualifications

• 7+ years building production backend systems that run at scale
• Track record of taking a problem from definition to a shipped solution with little direction
• Hands-on experience with at least one modern backend language
• Ability to pick up new stacks and tools quickly
• Product mindset
• BSc in Computer Science, Mathematics, or equivalent experience

Nice to have

• TypeScript and NestJS
• customer lifecycle or CRM data
• recommendation systems or experimentation platforms
• open-source contributions
• Experience with customer lifecycle systems, customer data platforms (CDP), or dynamic experimentation frameworks
• Experience integrating machine learning model outputs or predictive scores into backend workflows
• Active contributions to open-source software

About the company

Lemonade transformed insurance by replacing legacy processes with automation and machine learning.