Staff Backend Engineer

Tonal
San Francisco, CA

Who We Are
Tonal is the world’s first all-in-one home gym with a simply stunning design. It has completely revolutionized the fitness journey, with adaptive weight and coaching cues powered by advanced A.I. technology. We’ve united a diverse team of experts and decades of research to reinvent strength training, making it more efficient, more effective and more engaging. With this in mind, we want to bring that same innovative approach to the workplace. At Tonal, we continue our shift of emphasis by growing our instrumental team. We collectively weave our knowledge and creativity, as we redefine the future of fitness, and Power Progress for our members.

Overview

Tonal is looking for a passionate Senior Backend Engineer to work cross-functionally with product, engineering, and design, and play a critical role in building the platform that powers the world’s most intelligent personal trainer. You will be given the opportunity to solve challenging problems in the development of software for a unique consumer fitness product. You are entrepreneurial, thrive in a fast-paced, agile environment, and execute at an A-level. Like us, you value clean, fast, high-performing, and maintainable software.

This role can be based in San Francisco or Remote, US.

What You Will Do

  • Impact and contribute to the development of major software projects for our backend services. These services drive everything in our platform from personalized workout recommendations to dynamic media generation and distribution, and analytics based on the largest and most advanced fitness data set in the world

  • Collaborate with our tightly integrated software, hardware and content teams to continually evolve a unique, consumer-oriented fitness product

  • Work closely with product team to clarify requirements and develop designs for new featuresImplement, test, deploy and monitor software for our cloud-based backend microservices

  • Write and review clean, secure and testable code with a focus on maintainability, scalability and performance

  • Develop and support cloud-based big data pipelines

  • Use analytics to understand product behavior and motivate data-driven decisions

  • Mentor and share your broad knowledge with more junior engineers

Who You Are

  • A self-driven backend engineer, with experience owning software projects end-to-end and a desire to work in a fast-paced, iterative, and collaborative environment.

  • 3+ years of software development experience

  • Track record of solving problems end-to-end

  • Experience with distributed systems, microservices architecture, cloud platforms (AWS, Azure or GCP) and RESTful APIs

  • Expertise in server-side software development in Golang (or other languages, e.g. Rust, C++, C#, Java, Python)

  • Strong understanding of database design and modeling (e.g., PostgreSQL)

  • Excellent communicator with the ability to work collaboratively and cohesively in a cross-functional team

  • Experience with data-intensive applications, big data pipelines and analytics, having used tools such as Snowflake, DataBricks, Amplitude and Looker

Extra Credit

  • Experience with Kubernetes, Helm, Docker, ArgoCD

  • Experience with Postgres, Redis, Kafka, Airflow

  • Experience with Android development, Flutter, Kotlin

  • Experience with Swift/SwiftUIExperience working with remote teams

  • Experience integrating with Stripe, OneSignal

  • Interest in the fitness industry

At Tonal, we believe that the unique and varied lived experiences of our teammates contribute to our overall strength. We don’t just appreciate differences, we celebrate them, and we always seek people that represent a wide variety of backgrounds. We’re dedicated to adding new perspectives to the team and designing employee experiences that contribute to your growth as much as you do to ours. If your experience aligns with what we’re looking for (even if you don’t check every single box), send us your application. We would love to hear from you!

Tonal is committed to meeting the diverse needs of people with disabilities in a timely manner that is consistent with the principles of independence, dignity, integration, and equality of opportunity. Should you have any accommodation requests, please reach out to us via our confidential email, [email protected]. All requests will be addressed and responded to in accordance with Tonal’s Accessibility Policy and local legislation.

Posted 2025-09-14

Recommended Jobs

Senior Superintendent

Garney Construction
Tracy, CA

GARNEY CONSTRUCTION A Senior Superintendent position in Tracy, CA is available at Garney Construction. To be considered for this position you must have previous construction experience. …

View Details
Posted 2025-10-03

Senior Product Manager, Messaging

Box
Redwood City, CA

WHAT IS BOX? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, …

View Details
Posted 2025-09-25

Lead Product Manager, AI Research Experiences (Scribd)

Scribd
San Francisco, CA

About The Company: At Scribd (pronounced “scribbed”), our mission is to spark human curiosity. Join our team as we create a world of stories and knowledge, democratize the exchange of ideas and info…

View Details
Posted 2025-09-25

Jr. Project Manager at Farrell Flynne (remote)

Hire5
California

Why Work for Us? At , we’ve dedicated ourselves to one mission — to elevate every space through exceptional FF&E and OS&E procurement. Recognized as a top firm for four consecutive years , we’…

View Details
Posted 2025-11-03

Intensive Case Manager (Bilingual in Cantonese)

Chinatown Community Development Center
San Francisco, CA

Job Summary: The Intensive Case Manager provides clinical intensive and comprehensive case management services in Cantonese and English to a diverse set of very low-income residents of the RAD apart…

View Details
Posted 2025-07-30

Data Engineer Consultant - Hybrid in San Francisco

Unify Consulting
San Francisco, CA

We’re not like others, and neither are you. Unify Consulting is a collective of genuine, curious, seasoned consultants who unlock potential and deliver with purpose and excellence. We unify daring le…

View Details
Posted 2025-10-22

Engineering Product Manager

Opo Careers
San Jose, CA

OnePointOne (OPO) is developing the world's most advanced indoor plant production facility. We seek to develop and deploy a global network of industrial-scale automated indoor farms, givi…

View Details
Posted 2025-09-28

Therapist - Full Time

Calvary Healing Center
Montebello, CA

Responsibilities Therapist Opportunity  This full-time opportunity with Calvary Healing Center (Calvary) offers 40 hours per week, full benefits!  For nearly 60 years, Calvary Healing …

View Details
Posted 2025-09-06

Product Manager, Data Integrations

Braze
San Francisco, CA

At Braze, we have found our people. We’re a genuinely approachable, exceptionally kind, and intensely passionate crew. We seek to ignite that passion by setting high standards, championing teamwor…

View Details
Posted 2025-09-25

Financial Decision Making, Department of Business Administration - Adjunct Faculty

University of Maryland Global Campus
San Diego, CA

Adjunct Faculty Financial Decision Making Department of Business Administration UMGC Stateside Location: San Diego, CA University of Maryland Global Campus (UMGC) seeks adjunct facult…

View Details
Posted 2025-10-03