• Contribute to real-time chat and video experiences using SignalR, WebSockets, and Azure Communication Services.

• Apply and improve app architecture using Hilt dependency injection, ViewModels, repositories, use cases, and clear feature packages.

• Write unit and UI tests and maintain small, reviewable pull requests that meet quality and coverage standards.

• Support release activities, including Gradle flavors, signing, Play Console uploads, and post-release crash and log triage.

• Apply secure mobile practices for tokens, secrets, permissions, local data, logging, and privacy.

• Collaborate across engineering, product, design, QA, and security to clarify requirements, communicate tradeoffs, and deliver supportable releases.

What You Bring to the Table

• Typically 3+ years of experience shipping production Android applications.

• Strong Kotlin and Android SDK fundamentals.

• Hands-on experience building production interfaces with Jetpack Compose.

• Experience with coroutines, Flow, and lifecycle-aware Android architecture.

• Working knowledge of Jetpack components, including ViewModel and Navigation, and Gradle-based projects in Android Studio.

• Experience integrating REST and JSON APIs (ideally Retrofit / OkHttp) and troubleshooting authentication, token refresh, and unreliable network conditions.

• An automated testing mindset, with experience in unit testing and Android UI testing.

• Familiarity with Git, pull requests, code review, and continuous integration.

• Practical understanding of mobile security, including secure handling of tokens, secrets, permissions, and local data.

• Clear written and verbal communication and the ability to take a feature from ambiguity to a supportable release.

Bonus Points

• Experience with MSAL, Azure AD B2C, OAuth/OIDC, passkeys, WebAuthn, or enterprise identity-provider integrations.

• Experience using Hilt or Dagger dependency injection in a non-trivial application.

• Experience with real-time clients such as SignalR or WebSockets, or with VoIP and video technologies such as Azure Communication Services or WebRTC.

• Experience with multi-flavor or multi-environment builds, Play App Signing, internal testing, and staged rollouts.

• Experience with Crashlytics or similar diagnostics, structured logging, and production incident triage.

• Experience with cybersecurity products, security operations or incident-response tools, or regulated enterprise software.

• Experience with accessibility, internationalization, feature flags, or design systems.

• Comfort working around native NDK or C++ modules, or collaborating on shared mobile product decisions across Android and iOS.

#LI-HA1

Why Join Semperis?
You’ll be part of a global team on the front lines of cybersecurity innovation. At Semperis, we celebrate curiosity, integrity, and people who take initiative. If you’re someone who sees the glass as half full, embraces challenges as growth opportunities, and values a healthy balance between work and life—we’d love to meet you.

**Semperis maintains office locations in several cities across the globe. Where the job description specifies a required location, candidates will follow our hybrid work model. This includes working up to three days per week and remotely the remaining days.

Semperis is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, creed, national origin or ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, marital status, or any other legally recognized protected basis under federal, state, or local law. The information collected by the Semperis application is solely to determine suitability for employment, verify identity, and maintain employment statistics. 

Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and/or other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Semperis. Please inform Semperis representative Anna Taylor, Director of Global Recruiting, if you need assistance completing this application or to otherwise participate in the application process.