Software Development Engineer - Frontend Infrastructure

We’re obsessed with making hard work pay off, for our people, our customers, and the world around us. As a Fortune 500 company and a leading AI platform for managing people, money, and agents, we’re shaping the future of work so teams can reach their potential and focus on what matters most. The minute you join, you’ll feel it. Not just in the products we build, but in how we show up for each other. Our culture is rooted in integrity, empathy, and shared enthusiasm. We’re in this together, tackling big challenges with bold ideas and genuine care. We look for curious minds and courageous collaborators who bring sun-drenched optimism and drive. Whether you're building smarter solutions, supporting customers, or creating a space where everyone belongs, you’ll do meaningful work with Workmates who’ve got your back. In return, we’ll give you the trust to take risks, the tools to grow, the skills to develop and the support of a company invested in you for the long haul. So, if you want to inspire a brighter work day for everyone, including yourself, you’ve found a match in Workday, and we hope to be a match for you too.

You’ll own the core web stack at Sana - from our TypeScript/React frontend to the Node services, tooling, and monorepo infrastructure that power it. This is a role for engineers who love unblocking others: you’ll design and maintain the build systems, frameworks, and developer workflows that let teams ship fast, safely, and with confidence. You’ll work on everything from core web architecture and performance to CI, testing, and local development, ensuring our web platform is modern, secure, and a joy to build on.

In this role, you will:

• Own and evolve Sana’s TypeScript/React/Node foundations, including frameworks, services, and conventions

• Maintain and improve our monorepo tooling: build tools, dependency management, scripts, and shared services

• Design and refine local development, testing, and build workflows so they’re fast, reliable, and easy to use

• Optimize web performance, reliability, and security across our frontend and Node services

• Shape and implement our testing strategy (unit, integration, end-to-end, visual) and related tooling

• Maintain and improve CI/CD pipelines, including caching, checks, and deployment workflows

• Define and champion best practices for web development, debugging, and observability across teams

• Collaborate closely with product engineers to identify friction points and remove them through better tooling and architecture

• 5+ years of experience in a similar role

• Previous experience with web architecture, performance, and developer experience - raising the bar for how we build, ship, and maintain software at Sana.

We build on a simple modern stack optimized for both humans and AI: (no need to have experience in all):

• Backend: TypeScript, Kotlin, Node.js

• Frontend: TypeScript, React, Tailwind

• Databases: Postgres, Redis

• Cloud infra: GCP/Kubernetes/Terraform

• You are a developer who can move quickly and confidently

Listed below is the base salary range applicable to this position. Workday pay ranges (and the precise pay offered to the successful candidate) are based on a number of objective criteria such as relevant experience and skills, and educational qualifications, level of responsibility, demands of the role, work location and business need. As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants awarded by Workday Inc. For more information regarding Workday’s comprehensive benefits, please click here.

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