Staff Applications Engineer: Full-Stack for Open Foundations

Sierra Ventures

San Francisco (CA)

On-site

USD 180,000 - 230,000

Full time

14 days+

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Benefits offered by this job

Top-tier compensation

Stock options

Health & wellness

Meals provided

Parental leave

Job summary

Reflection is seeking a high-impact engineer to join our foundations and product surfaces. You will translate ambiguous requirements into clean, operable systems and take ideas from prototype to production.

Work with React, TypeScript, REST, gRPC, FastAPI, and Go services; own UI through authentication; integrate with customer environments; build dashboards and admin tools. We offer top-tier compensation and equity, health benefits, meals, generous parental leave, visa sponsorship, and regular

Qualifications

Strong full-stack engineering background with production-grade delivery.
Ability to own the full delivery surface — UI through API through auth.
Experience integrating with external systems and customer environments.

Responsibilities

Build internal and customer-facing product surfaces.
Own end-to-end delivery across UI, APIs, authentication, RBAC, and audit trails.
Integrate with customer environments for seamless workflows.
Productionize prototypes into reliable platform components.
Translate fuzzy requirements into clear system designs and usable interfaces.
Feed delivery learnings back into platform defaults so future systems ship faster.