Lead Backend Engineer -

We're looking for a Lead Backend Engineer to own the design and implementation of our backend infrastructure as we scale from 1 to 10M+ daily active users. The ideal candidate combines strong technical expertise with architectural thinking, is comfortable making foundational decisions, and wants to shape both the technical stack and the engineering practices & culture around it.

Requirements

• Proven experience designing and scaling backend infrastructure for millions of users.
• Hands-on experience building cost-efficient, secure, and reliable systems.
• Strong JavaScript/TypeScript expertise.
• Experience building and scaling backend infrastructure for large-scale consumer or mobile-first products.
• Hands-on with cloud platforms (preferably GCP) and building scalable services.
• Experience with Firebase (Auth, Firestore, Cloud Functions) is a plus.
• Proficiency in SQL & NoSQL databases and designing scalable data models.
• Experience with CI/CD pipelines & IaC.
• Knowledge of API versioning and backward-compatibility strategies.
• Familiarity with security, privacy, and compliance best practices.
• Product-oriented & pragmatic: Focused on delivering user value over over-engineering.
• Strong communicator: Explains trade-offs clearly and invites healthy debate.
• Startup-ready: Adaptable, iterative, and unafraid to rethink what no longer works.
• Data-savvy: Experienced in structuring and managing data at scale.
• Understands mobile client needs and builds APIs that serve them efficiently.
• Reliability-driven: Deep care for operational excellence and measurable performance.

Benefits

• Meaningful challenges: Balance simplicity, security, cost, and scale in a product already used by hundreds of thousands.
• Well-Supported: Backed by world-class investors and founders of companies like Pinterest, Snapchat, and Revolut.
• Collaborative Culture: Work with a small, high-impact team that gathers quarterly for meetups and learning. Nearly $1M in Revenue per Employee.