Founding Engineer, Infrastructure

Runtime Labs, Inc.; San Francisco, Northern (CA, KY); Hybrid; USD 150,000 - 200,000; Full time

Benefits offered by this job

Equity

Job summary

Runtime Labs, Inc. in San Francisco is seeking a Founding Engineer, Infrastructure, to design and build core systems for Óra. You will own event storage, real-time sync, integrations, media pipelines, and scheduling primitives, shaping performance and reliability from day one.

This in-person role offers a salary between $150k and $200k, meaningful early equity, and a chance to establish the product's foundational infrastructure with a small founding team.

Responsibilities

• Build core infrastructure for events, timelines, notes, images, prompts, and integrations
• Design systems for reliability, performance, observability, and data integrity
• Develop backend primitives for time-indexed memory, scheduling, and contextual retrieval
• Build integrations with calendars, maps, authentication, storage, and future data sources
• Create internal tools, tests, and workflows that increase engineering velocity
• Work closely with product and design to make infrastructure decisions that directly shape the user experience

Job description

# Founding Engineer, InfrastructureRuntime Labs builds Óra at ora.app.As a Founding Engineer focused on Infrastructure, you will help design and build the core systems that make Óra fast, reliable, and extensible. This includes event storage, real-time sync, integrations, media pipelines, model-grounded scheduling flows, and the backend primitives for reasoning over time and context.## About the Role* Build core infrastructure for events, timelines, notes, images, prompts, and integrations* Design systems for reliability, performance, observability, and data integrity* Develop backend primitives for time-indexed memory, scheduling, and contextual retrieval* Build integrations with calendars, maps, authentication, storage, and future data sources* Create internal tools, tests, and workflows that increase engineering velocity* Work closely with product and design to make infrastructure decisions that directly shape the user experience## About the Person* Comfortable owning ambiguous systems from first principles* Cares about product quality, not just backend elegance* Moves quickly while building foundations that can compound over time* Excited by infrastructure that is often invisible to users but essential to the product* Interested in model capabilities, structured data, human-computer interaction, and new primitives for planning* Wants to be an early long-term partner in building a new product category## Location & CompensationLocation: San Francisco. We are building the founding team in person and expect to work closely together during the company's early formation.Salary: $150k–$200k depending on experience and role.Equity: meaningful early-stage ownership for long-term partners.Exceptional candidates may be considered outside this range.We encourage you to apply even if you do not meet every qualification.