Staff Software Engineer, Platform
At a glance
Senior Engineering Leadership role at Luminai. San Mateo · full-time · $220,000–$250,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Create and maintain shared frameworks, libraries, and packages used by product engineers and FDEs
- Improve the full developer workflow, from local setup and builds to CI/CD, testing, and new-hire onboarding
- Build code-quality tools such as linters, static analysis, code generation, and automated checks
- Remove release bottlenecks, strengthen core abstractions, and lead technical work that raises code quality
- Set up production monitoring, reliability, and observability, plus safe defaults for access, authentication, and secrets
What you bring
- At least eight years as a software engineer, including projects you took from an initial idea to a working product
- Experience creating internal frameworks, libraries, or developer tools that other engineers rely on
- Hands-on design experience with high-performance backend systems running in production
- Working knowledge of infrastructure such as Kafka or Kubernetes, and backend or cloud security fundamentals
Who this fits
This suits a senior engineer who can lead foundational technical work and make architectural decisions for production systems. The role is based in San Francisco or New York and requires being in the office four days a week, with Wednesday available for remote work.
From the employer
About Luminai
Healthcare operations have always depended on people to bridge the gaps that technology couldn't. It relies on complex manual work to carry out critical internal processes, yet most health systems don’t have enough resources to properly automate these tasks, leaving them stuck in outdated, labor-intensive SOPs.
Luminai structures the chaos, automates the manual handoffs, and deploys end-to-end workflows across every system, providing the integrated intelligence layer to improve processes over time. By delegating to autonomous AI systems those mission-critical workflows that previously expended valuable human time, Luminai allows doctors and administrators to do what they do best: Focus on Patients.
We've raised $60M in funding, including our recent Series B led by Peak XV Partners (formerly Sequoia India), with participation from healthcare-focused Define Ventures and continued support from General Catalyst and Y Combinator. We're backed by some of the best investors in Silicon Valley, including Kevin Weil (Chief Product Officer at OpenAI), Arash Ferdowsi (co-founder of Dropbox), Katie Stanton (former VP Global Media, Twitter), and CEOs of companies such as Flexport, Notion, Front, Ramp, and Twitch.
Our team is in-office 4 days a week (Monday - Friday, Wednesday optional WFH) in either San Francisco, California or New York, New York.
About the role
As a Staff Software Engineer working on Platform, you will play a foundational role in designing, implementing and spearheading the core platform development. The platform is used by organizations worldwide to deploy and scale executable AI automations in mission critical production environments. As a senior member of the engineering team, you are expected to have a strong proficiency in fundamentals of software engineering and exceptional ability to drive technical projects in ambitious technical environments. You will help define, architect and improve key system foundations that allows the overall engineering team to execute effectively and deliver a stellar platform experience for users within a high growth team.
What You'll Do
Design and maintain the core frameworks, libraries, and shared packages that product engineers and FDEs build on every day
Own developer experience end to end, including local dev environments, build systems, CI/CD, test infrastructure, and time-to-first-commit for new hires
Build and maintain the tooling that keeps quality high without slowing anyone down: linters, formatters, static analysis, codegen, and automated checks
Find and remove the bottlenecks in how we ship, then re-architect foundational abstractions to hold up as the team and the product scale
Lead core technical initiatives that set the quality bar in the codebase
Define and scale experimentation, monitoring, reliability, and observability for production systems
Set sane defaults for how the platform handles access control, secrets management, and authentication, so the systems others build on are safe without extra effort
What We're Looking For
8+ years as a software engineer, including zero to one projects you drove from scratch
Track record of shipping high-quality code on hard problems
Experience building internal frameworks, libraries, or developer tooling that other engineers depended on, and a real interest in making them better
Direct experience designing high performance backend systems in production, with judgment about the architectural trade-offs involved
Working familiarity with a modern infrastructure stack (Kafka, Kubernetes, or similar)
Solid grasp of security fundamentals for backend and cloud systems (authN/authZ, secrets management, encryption)
Bonus
Familiarity with frontend foundations (JS toolchain, bundlers, build systems). Not required, but useful for platform work that reaches into the client