Fraud-Detection Full-Stack Engineer for AI Systems

Unit21, Inc.; San Francisco (CA); On-site; USD 160,000 - 200,000; Full time

Benefits offered by this job

Company-paid health insurance

Unlimited PTO

401(k) with stipend

Home office setup support

Job summary

Unit21 is seeking a full stack engineer who is passionate about catching fraud and designing AI-powered systems. You will design high-performance automation, build scalable features, and work with product/design to improve user experiences in a distributed environment.

The role requires 3+ years in Python/Go/Rust and React with Material UI, plus hands-on experience with AWS and Terraform. You will contribute to end-to-end data flows and robust APIs for complex fraud scenarios.

Qualifications

• BS, MS or Ph.D in Computer Science, Engineering, Mathematics, Statistics, Physics, or related field is required.
• 3+ years of experience in Python/Go/Rust.
• 3+ years of experience with React and Material UI.
• Experience in building and managing distributed systems.
• Experience with AWS and Terraform.
• Experience in developing and optimizing end-to-end APIs, data-flows, SQL queries and infrastructure for consumer or enterprise products.
• Advanced knowledge of software engineering principles including software design, source control management, build processes, automated deployments, code reviews, testing methods.

Responsibilities

• Design and build high-performance automation and AI systems with intuitive user interfaces prioritizing scalability, reliability, and efficiency.
• Lead projects from start to completion.
• Collaborate with product and design to refine user experiences.
• Reviewing pull requests, internal and external to team.
• Innovating on creative solutions to difficult problems.
• Work with related data infrastructure technologies.
• Building new features to help our customer detect ever changing complex fraud scheme.
• Developing and deploying efficient and elegant code.

Skills

Python

Go

Rust

React

Material UI

Distributed systems

APIs

SQL queries

AWS

Terraform

Education

BS/MS/PhD in CS/Engineering/Math/Stats/Physics

Tools

Databricks

Apache Spark

Job description

Unit21 is seeking a full stack engineer who is passionate about catching fraud and designing AI-powered systems. You will design high-performance automation, build scalable features, and work with product/design to improve user experiences in a distributed environment.

The role requires 3+ years in Python/Go/Rust and React with Material UI, plus hands-on experience with AWS and Terraform. You will contribute to end-to-end data flows and robust APIs for complex fraud scenarios.