Engineering Assessments
A credential catalog of role-specific assessments designed by senior engineers. Pass once, carry your credential everywhere.
SQL
Data / Backend / Fullstack
Write real queries against a production schema. Fix a broken reporting query. Prove your SQL fluency.
Data Structures and Algorithms
Universal Engineering
Solve real algorithmic problems under time pressure. Demonstrate the core problem-solving fluency every engineer needs.
JavaScript and TypeScript
Frontend / Fullstack
Ship working code in the language of the modern web. Show you understand async, types, and the sharp edges of the JS runtime.
React
Frontend Engineering
Build and debug React components that real users interact with. Prove you can think in components, hooks, and state.
Python
Backend Engineering
Fix broken services and extend working ones. Demonstrate fluency with Python, Flask, and the judgment to design clean backend code.
Java
Backend / Enterprise
Work in the language that still runs most of the enterprise world. Prove you can write idiomatic, production-grade Java.
Docker and Kubernetes
DevOps / Platform
Package, deploy, and troubleshoot containers the way production actually runs. Show you understand the modern deployment surface.
AWS Fundamentals
Cloud / Infrastructure
Navigate the core AWS services teams actually use in production. Prove you can reason about compute, storage, networking, and IAM.
Go
Backend / Infrastructure
Write concurrent, idiomatic Go. Show you can build the fast, reliable services modern infrastructure is written in.
Security Fundamentals
AppSec / Security
Identify real vulnerabilities, reason about threat models, and demonstrate the security instincts every modern engineer needs.
System Design
Senior / Staff Engineering
Reason about capacity, consistency, and failure modes. Scale a read-heavy service. Navigate a 3am outage scenario.
TypeScript (Advanced)
Frontend / Fullstack
Work the TypeScript type system: generics, conditional types, inference, narrowing. Write code that catches bugs at compile time.
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