Founding Backend Engineer - Wearable Data & APIs

Fort; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Fort is building a screenless wearable and companion app for strength training, with a focus on moving data reliably between wearable, phone, and server. We are seeking a founding software engineer to own development across the stack, especially on the backend, and to ship APIs and data infrastructure that power responsive product experiences.

You will work directly with the founders, shaping architecture, performance, and data strategies while having substantial ownership of what we build and

Qualifications

• Experience shipping and operating software at a startup.
• Strong backend fundamentals and ability to own end-to-end features.
• Ability to turn ambiguous problems into working solutions and make practical tradeoffs.
• Early engineer with opportunity for substantial ownership and direct collaboration with founders.

Responsibilities

• Build APIs to move data reliably between wearable, phone, and server.
• Improve synchronization and data infrastructure across the stack.
• Debug performance across system boundaries and ship mobile features.
• Support data analysis and the infrastructure behind machine learning work.

Skills

Backend development

APIs

Data infrastructure

Performance debugging

Startup experience

Job description

Fort is building a screenless wearable and companion app for strength training, with a focus on moving data reliably between wearable, phone, and server. We are seeking a founding software engineer to own development across the stack, especially on the backend, and to ship APIs and data infrastructure that power responsive product experiences.

You will work directly with the founders, shaping architecture, performance, and data strategies while having substantial ownership of what we build and