We're looking for a Senior Backend Engineer to help build the core systems that power how Lemonade prices insurance for millions of customers. You'll join our Pricing Team in Amsterdam, working on everything from our homegrown domain-specific language to AI-powered research pipelines that push the boundaries of actuarial science.
Team Context Our Pricing Team operates at the intersection of complex mathematics and high-performance engineering. We've built our own DSL in TypeScript for actuarial calculations, compiled to Rust for production performance, and increasingly leverage AI to discover new pricing patterns. You'll work alongside actuaries who understand the logic of risk, but you'll be the one designing the technical architecture that makes their insights scale.
We believe three things matter for every role at Lemonade: drive to push through challenges, efficiency that keeps standards high while moving fast, and adaptability that lets you pivot with data and AI insights. These aren't buzzwords, they're how we actually work.
Our AI-first approach isn't just a tagline either. We're building the future of insurance with AI at the center, and we need people who are genuinely excited to learn and grow alongside these tools.
In this role you'llDesign and build core rating services that calculate prices for insurance products used by millions
Architect complex systems spanning TypeScript, Rust, and Python across different problem domains
Build AI-powered research pipelines that help actuaries discover new pricing insights
Create SDKs and code patterns that other teams can build on top of
Optimize performance-critical systems where milliseconds matter for customer experience
Collaborate with actuaries to translate complex mathematical models into scalable code
Lead technical decisions about system architecture, interfaces, and design patterns
What you'll need
Adaptability, drive, and an efficiency mindset — we believe these matter most in human-AI collaboration
Deep experience with system design and architectural decision-making, not just API development
Strong proficiency in one of backend languages with ability to quickly pick up new ones (our stack includes TypeScript, Rust, and Python)
Experience building performance-optimized systems where technical choices directly impact business outcomes
Track record of designing complex technical systems from scratch, including interfaces and abstractions
Comfort working with heavy Kubernetes deployments and cloud-native architectures would be nice to have
Educational degree in Computer Science, Engineering, or equivalent experience
Ready to work in an office environment most days of the week
Enthusiasm about learning and adapting to the exciting world of AI — a commitment to exploring this field is a fundamental part of our culture
Skills Required
- Deep experience with system design and architectural decision-making
- Strong proficiency in at least one backend language (TypeScript, Rust, or Python) with ability to learn new languages quickly
- Experience building performance-optimized systems where technical choices impact business outcomes
- Track record of designing complex technical systems from scratch, including interfaces and abstractions
- Comfort working with heavy Kubernetes deployments and cloud-native architectures
- Educational degree in Computer Science, Engineering, or equivalent experience
- Ready to work in an office environment most days of the week (Amsterdam)
- Adaptability, drive, and an efficiency mindset for human-AI collaboration
- Enthusiasm and commitment to learning and exploring AI-driven tooling and research
- Ability to lead technical decisions about system architecture, interfaces, and design patterns
Lemonade Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lemonade and has not been reviewed or approved by Lemonade.
-
Healthcare Strength — Health coverage is delivered via mainstream Cigna medical options, with multiple plan types and supplemental health protections. This signals broad networks and a robust core healthcare offering.
-
Retirement Support — A company 401(k) match is part of the package and is positioned alongside other core financial benefits. This provides structured retirement savings support as a standard element of total rewards.
-
Leave & Time Off Breadth — PTO is presented as generous, alongside paid sick time and strong parental leave with a return-to-work program. These time-off provisions extend beyond the basics and support work-life needs.
Lemonade Insights
What We Do
Our mission is simple: Create the world’s most loved insurance through technology and social impact. As a certified Public Benefit Corporation and B-Corp, Lemonade is constantly challenging how the insurance industry does business. We’re creating an experience that is fast, affordable, and hassle-free across renters, homeowners, pet, life and car insurance. And through our annual Giveback program, in which leftover premiums are donated to charities our customers choose, we’ve donated nearly $5 million to a variety of organizations in need.
Why Work With Us
We’ve set out to make insurance loveable, fast, simple, and socially impactful - words that aren’t often associated with this industry. We’re a Certified B-corp, the only US insurance company to never invest in polluting industries, and our annual Giveback program has donated nearly $5 million globally to nonprofits in need.
Gallery
