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Principal/Architect Software Engineer

Tonal · San Francisco, CA · Remote

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About Tonal

Transform your workouts with Tonal, the leader in smart home gym equipment. Get AI-powered training and full-body workouts in a sleek, space-saving design. Backed by Sapphire.

About the role

You’ll lead architecture and delivery across Tonal’s device, app, and cloud systems: turn business priorities into technical direction, own initiatives that span teams, and grow senior engineers into technical leaders. You report to engineering leadership and stay hands-on from design through production. Success means shipped outcomes, stronger systems, and teams that move faster. Found on 1752vc Careers, the job board for startup and VC roles.

What they're looking for

  • You’ve led architecture and delivery across multiple teams at Senior Staff or Principal scope, with measurable results
  • You have deep backend, distributed systems, and cloud expertise and reason well across device, mobile, data, and service boundaries
  • You still build and operate production software. You’ve owned hard integrations or migrations and made pragmatic tradeoffs between speed, reliability, security, cost, and maintainability
  • You turn ambiguity into focused plans and get alignment from technical and nontechnical partners
  • You’ve made other senior engineers stronger technical leaders and can show how your work improved teams beyond your own
More about this role

You’ll lead architecture and delivery across Tonal’s device, app, and cloud systems: turn business priorities into technical direction, own initiatives that span teams, and grow senior engineers into technical leaders. You report to engineering leadership and stay hands-on from design through production. Success means shipped outcomes, stronger systems, and teams that move faster.

Set 6–12 month technical direction across device, app, and cloud. Turn product priorities into architecture, ownership, and delivery plans.

Lead a few cross-team initiatives from problem definition to launch and adoption. Settle tradeoffs with team leads; flag priority and resource conflicts early.

Write critical-path code, build prototypes, guide migrations, and debug hard production issues. Own how your architecture decisions play out in practice.

Simplify shared systems and interfaces. Improve reliability, observability, security, and developer workflow so teams need less coordination to ship.

Mentor senior and Staff engineers through design, pairing, and shared delivery. Set up lightweight decision practices so teams can act on their own.

Use AI-assisted engineering tools where they improve delivery...

Read the full posting on Tonal's site ↗

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