Principal/Architect Software Engineer

The role

You will lead architecture and delivery across device, app, and cloud systems. You will turn business priorities into technical direction and mentor senior engineers into technical leaders.

What you will do

• Set 6–12 month technical direction across device, app, and cloud.
• Turn product priorities into architecture, ownership, and delivery plans.
• Lead cross-team initiatives from problem definition to launch and adoption.
• Settle tradeoffs with team leads and flag priority or resource conflicts.
• Write critical-path code, build prototypes, guide migrations, and debug production issues.
• Simplify shared systems and interfaces.
• Improve reliability, observability, security, and developer workflow.
• Mentor senior and Staff engineers through design, pairing, and shared delivery.
• Use AI-assisted engineering tools to improve delivery or quality.
• Partner with Data Science, AI, and platform owners on production integrations.

Required qualifications

• Led architecture and delivery across multiple teams at Senior Staff or Principal scope.
• Deep backend, distributed systems, and cloud expertise.
• Ability to reason across device, mobile, data, and service boundaries.
• Experience building and operating production software.
• Experience owning hard integrations or migrations.
• Ability to turn ambiguity into focused plans and get alignment from partners.
• Experience making other senior engineers stronger technical leaders.

Nice to have

• Connected devices, consumer subscriptions, fitness, or digital health.
• Healthcare integrations and sensitive-data systems.
• AI in production products or engineering workflows.

About the company

Tonal seeks teammates with unique and varied lived experiences to contribute to their strength. They are dedicated to adding new perspectives and designing employee experiences that contribute to growth.