> Markdown version of [/jobs/ext/2717187-mobile-infrastructure-engineer-ii](https://www.wearedevelopers.com/jobs/ext/2717187-mobile-infrastructure-engineer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Infrastructure Engineer II - **Company:** Tandem Diabetes Care - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $165,000.0 - $185,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Android Software Development, Apple Xcode, App Store (IOS), Concurrency Controls, Continuous Integration, Linux, Github, Python (Programming Language), Shell Script, Software Engineering, Workflow Management Systems, YAML, Firebase, Git, Build Management, Information Technology - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/sr-mobile-infrastructure-engineer-ii-tandem-diabetes-care-interna-9825080 ## About the Role * 8+ years of experience in software engineering, CI/CD, or build/release engineering with meaningful ownership of production systems. * Bachelor's degree in engineering or computer sciences or related field or equivalent combination of education and applicable job experience. * Proficiency in Python, shell scripting, YAML, and Git. * Production experience with GitHub Actions, including reusable workflows, matrix strategies, concurrency controls, and composite actions. * Strong iOS CI expertise including deep familiarity with Xcode build configuration, Apple code signing (certificates, provisioning profiles, entitlements), simulator management, and automated TestFlight or App Store delivery. * Experience with cloud-hosted or local macOS VM platforms such as Orka/MacStadium, Tart, or equivalent. * Experience with Apple Developer account management including certificates, provisioning profiles, and App Store Connect API. EXTRA AWESOME * Experience with Firebase App Distribution for internal mobile build delivery. * Experience with Android build systems and signing pipelines. * Experience integrating mobile testing frameworks - unit, instrumented, snapshot, contract, and end-to-end - into CI pipelines. * Background in iOS or Android mobile development. * Experience in a regulated industry such as medical devices with traceability and compliance requirements. * Experience running multi-flavor/multi-variant Android builds with regional distribution targets., Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable state and local Fair Chance laws and regulations. A conditional offer of employment from Tandem is contingent upon successful completion of a pre-employment screening process comprised of a drug test (excluding marijuana) and background check, which includes a review of criminal history information. Tandem has good cause to conduct a review of criminal history information of candidates for this position, as this role may involve access to proprietary, sensitive and/or confidential information, including customer protected health information. This review is required to ensure that individuals in such roles uphold high standards of trust and integrity so as to protect the interests of our customers, employees, and stakeholders. SPONSORSHIP: Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time. ## Description We are looking for a Senior Mobile Infrastructure Engineer II to help own our macOS and Linux runner infrastructure and mobile pipelines. This role is central to how we scale CI capacity, maintain runner health, and ship reliable builds for our iOS and Android applications. Working across provisioning automation, cloud-hosted VM platforms, GitHub Actions workflow design, and the Apple toolchain, this role partners closely with mobile engineers to reduce friction throughout the development lifecycle. The CI systems this role owns directly support the reliability, quality, and delivery of FDA-regulated medical device software used daily by people with diabetes. A Sr. Mobile Infrastructure Engineer II at Tandem also: * Manages and evolves the cloud-hosted macOS VM fleet, including provisioning automation, capacity planning, health monitoring, and recovery; ensures runners are reliable, up-to-date, and consistently configured across environments. * Designs, maintains, and improves build, test, signing, and release workflows for iOS and Android applications; drives improvements in build time, queue time, and flake rates through systematic measurement and iteration. * Builds reusable workflows, composite actions, and shared tooling consumed across iOS, Android, and infrastructure repositories; establishes consistent, maintainable patterns for CI authoring in GitHub Actions. * Writes reliable, well-tested Python and shell scripts for build orchestration, runner management, artifact handling, and secret lifecycle management. * Instruments runner health, build durations, and failure patterns; owns alerting for outages and degraded pipeline states. * Maintains toolchain version consistency across developer machines and CI environments; documents systems and authors runbooks. * Maintains distribution certificates, provisioning profiles, and export configurations for Apple code signing; automates expiry monitoring and rotation across all build variants and environments. * Contributes to Android build and signing workflows, including multi-flavor, multi-variant build pipelines and Firebase App Distribution delivery. WHEN & WHERE YOU'LL WORK: Remote: This position is fully remote and open to candidates within the United States. 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