Full Stack Engineer
Unit21 · San Francisco, United States ·
- Category
- Fullstack
- Experience
- 3+ years
- Salary
- USD 160,000 – 200,000 / year
Unit21 · San Francisco, United States ·
5 Star Recruitment · Glendale, California, United States
breezecash · New York City, NY
office-hours · San Francisco, NYC
Blank Slate Technologies · New York City
Unit21 is hiring a full stack engineer in San Francisco to build AI-powered fraud detection products. Day to day you design scalable automation systems, end-to-end APIs and data flows, using Python/Go/Rust and React on AWS with Terraform.
About the role:
We are looking for a full stack engineer who is passionate about catching fraud. We build AI products that help our customers detect fraud and keep their customers money safe. This requires careful thought, high creativity, and a deep understanding of complex systems.
What you will be doing:
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
What we’re looking for:
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.
Hustle, curiosity, humility
Bonus Points!
Experience managing large-scale critical production systems with minimum SLAs of 4 9's
Experience with Databricks or Apache Spark
Experience with building and deploying RAG pipelines
Experience with securing MCP
Work Location:
San Francisco - Bay Area
Compensation:
The standard base pay range for this role is $160,000 - $200,000 annually. This range does not include bonuses, equity, or other incentives.
What We Offer
Competitive salary and pre-IPO equity
100% company-paid medical, dental, and vision insurance (employee)
Unlimited PTO and generous leave programs
401(k), learning & development stipend, and home office setup support
Inclusive, high-ownership culture focused on impact, innovation, and growth
Equal Opportunity
Unit21 is an equal opportunity employer. We encourage candidates to apply even if they do not meet every listed requirement. We are committed to building a diverse, inclusive workforce.
Stripe · London