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Senior Android Application Software Engineer, OrbMini

Company:
Tools for Humanity
Location:
San Francisco, CA
Posted:
February 05, 2026
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Description:

Senior Android Application Software Engineer, OrbMini

Location: San Francisco, USA

About the Company: World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone.

About the Team: The Device Organization at Tools for Humanity is responsible for all aspects of driving development of world-class hardware devices reaching billions of people globally. We are a rapidly growing, highly cross-functional team that strategically partners with industrial design, optics, hardware development, and product teams to define product requirements and execute on development of our next generation family of devices. We offer competitive compensation, professional development opportunities, and a collaborative work environment.

About the Role: Tools for Humanity is looking for a Senior Application Development Engineer to join as one of our first application focus software engineers at our new San Francisco office. This is a great opportunity to join a newly formed, dynamic team as a Senior Application Development Engineer, and contribute to the development of our next generation proof of human devices.

Key Responsibilities

Own the architecture, development, maintenance, and debugging of software applications on upcoming consumer electronics devices

Design and implement high performance user facing applications

Create the user interfaces and user experience of core applications running on our internally developed devices

Participate in design reviews and provide input over all system architecture

Work collaboratively with cross-functional teams on concept integration into product roadmap with a focus on stability, power, and performance

Author and maintain documentation for application architecture, testing procedures, and validation results

Coordinate with software engineers to validate system-level behavior and address hardware/software integration issues

Support production system debug as needed

Support user research studies for development of user interfaces

About You (Qualifications)

Bachelor’s or Master’s degree in Computer Science or a related field

4+ years of hands-on experience in Android application development

6+ years of software development experience

Experience developing user interfaces for consumer electronics systems at large scale

Strong proficiency in Kotlin

In depth knowledge of the Android SDK

Experience with testing methodologies including unit testing and UI testing

Ability to work independently on complex projects and take full ownership of deliverables

Ability to debug complex cross-domain issues in a fast-paced, iterative development environment

Committed to rigorous documentation and testing practices

Comfortable working in a start-up or high-velocity team environment, with a proactive, hands-on approach

Pay transparency statement (for CA and NY based roles): The reasonably estimated salary for this role at TFH ranges from $220,000 - $270,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. TFH offers a wide range of benefits including healthcare, dental, vision, 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and more.

By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Technology, Information and Internet

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