GenAI Full-Stack Engineer: Build Production AI Apps

Weekday AI (YC W21); United States; On-site; USD 69,000 - 90,000; Full time

Job summary

Weekday AI (YC W21) seeks a hands-on Full-Stack Software Engineer to join its GenAI team in the United States. You will build production-quality software using Python, Java, Rust, C#, C++, and TypeScript, spanning backend, frontend, and AI model integrations.

You will collaborate with leadership on fast-moving projects, prototype rapidly, and contribute code with minimal ramp-up, while maintaining high standards in testing, architecture, and documentation.

Qualifications

• 3+ years of professional experience building and deploying production software in a high-quality engineering environment.
• Strong production experience in at least one of Python, Java, Rust, C#, or C++, plus working proficiency in a second programming language.
• Hands-on full-stack development across backend services, APIs, frontend frameworks, databases, and cloud deployment.

Responsibilities

• Design, develop, and ship full-stack applications, backend services, internal tools, and integrations using Python, Java, Rust, C#, C++, and TypeScript.
• Build software that exercises and integrates advanced AI model capabilities across end-to-end workflows.
• Integrate model APIs into production-ready applications, including tooling, evaluation frameworks, monitoring, and telemetry.
• Develop scalable backend services and APIs while contributing to modern front-end applications.
• Investigate and troubleshoot model, application, and integration issues, documenting findings clearly.
• Translate engineering observations into actionable feedback for research and engineering teams.
• Rapidly prototype solutions and deliver functional increments in evolving environments with limited initial specifications.
• Collaborate with engineering managers and developers to maintain high standards for code quality, architecture, testing, and documentation.
• Work across unfamiliar systems and codebases, quickly identifying dependencies and implementing effective solutions.

Skills

Python

Java

Rust

C#

C++

TypeScript

React

APIs

Databases

Cloud

Job description

Weekday AI (YC W21) seeks a hands-on Full-Stack Software Engineer to join its GenAI team in the United States. You will build production-quality software using Python, Java, Rust, C#, C++, and TypeScript, spanning backend, frontend, and AI model integrations.

You will collaborate with leadership on fast-moving projects, prototype rapidly, and contribute code with minimal ramp-up, while maintaining high standards in testing, architecture, and documentation.