Staff Mobile Engineer (P4)

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Staff Mobile Engineer (P4) in USA

Twilio
Full time
Email

USA
10/07/2026
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Remote

Responsibilities

Build and own mobile SDKs for identity and fraud detection, including device signal collection and authentication flows.
Partner with product and engineering leadership to define direction, translate customer needs into capabilities, and deliver roadmap features.
Collaborate across Twilio and Stytch teams on architecture, platform integration, and cross-team initiatives.
Author design documents, drive technical decisions, review code, and maintain hands-on ownership of shipped systems.
Break down ambiguous technical problems, make pragmatic tradeoffs, and create developer experiences for customers.
Improve production quality and resilience through observability, incident response, and remediation.
Mentor engineers through pairing, feedback, and knowledge sharing.
Participate in non-standard on-call rotation hours, including weekends and holidays.

Requirements

6+ years of professional mobile engineering experience designing, building, and maintaining mobile applications.
Android development experience with fluency in Kotlin or Java.
Expertise in mobile development ecosystems, frameworks, and third-party libraries.
Deep understanding of software engineering practices including monitoring, observability, and maintainable systems.
Experience making high-impact technical decisions and leading technical initiatives.
Bachelor’s degree in Computer Science or related industry experience.
Strong communication, collaboration, stakeholder influence, and customer-focused technical leadership skills.

Benefits

Remote-first work arrangement, with the role available remotely in the US or Canada.
Occasional travel may be required for project or team in-person meetings.
Competitive pay, paid time off, parental and wellness leave, healthcare, retirement savings, paid sick time, and paid personal time off.
Potential eligibility for equity and corporate bonus plans.
Twilio supports employee volunteering and donation efforts.

Salary: $171k - $252k/yr

Twilio

Twilio is a software company that strengthens businesses by unifying their data to build insightful paths to customers, making them smarter with every interaction and enabling them to outmaneuver their competition. Twilio improves customer engagement by combining customer data and communications ...

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