At Semperis, our mission is to be a Force for Good. Starting with being a great place to work. We believe that when people feel valued, supported, and empowered, they do their best work. That’s why we focus on creating an employee experience rooted in purpose, growth, and balance. Semperis has been recognized as one of America’s Fastest-Growing Cybersecurity Companies by the Inc. 5000, a DUNS 100 Top Startup to Work For, and a multi-year Inc. Best Workplace awardee.
Android Software Engineer
Ready1 Mobile · Full-time · Toronto, Canada (Hybrid) · Mid-level
We're looking for an Android Software Engineer to join our team. As part of our growing team, you'll play a key role in protecting enterprises from cyber threats, while working with some of the brightest minds in cybersecurity and Identity Access Management.
About Semperis
Semperis protects hybrid Active Directory and Entra ID environments for enterprises worldwide. Our products help security and identity teams detect, respond to, and recover from identity-driven attacks.
About Ready1
Ready1 is a mobile incident-response product that helps security and identity teams act quickly when they are away from their desks. It enables teams to triage incidents, coordinate response activities, join secure video bridges, and communicate in real time. Built for enterprise environments, Ready1 supports secure authentication, multi-region services, and reliable mobile workflows across Android and iOS.
What You'll Be Doing
You'll own secure, production-ready Android features for Ready1 from design through Google Play release. You'll collaborate with iOS, backend, product, design, QA, and security partners to improve reliability, quality, and delivery speed for identity and incident-response teams operating across regions.
Your Key Responsibilities
Design, implement, test, and ship native Android features in Kotlin for Ready1.
Build and evolve Jetpack Compose interfaces while thoughtfully migrating legacy RecyclerView and XML components.
Implement and maintain secure authentication and session flows using technologies such as MSAL, Azure AD B2C, biometrics, and passkeys.
Integrate REST APIs (Retrofit / OkHttp) with resilient loading, error, retry, and empty states, including support for multi-region routing.
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.Skills Required
- Typically 3+ years of experience shipping production Android applications
- Strong Kotlin and Android SDK fundamentals
- Production experience with Jetpack Compose
- Experience with coroutines, Flow, and lifecycle-aware Android architecture
- Working knowledge of Jetpack ViewModel, Navigation, Gradle, and Android Studio
- Experience integrating REST and JSON APIs, preferably with Retrofit or OkHttp
- Experience troubleshooting authentication, token refresh, and unreliable network conditions
- Experience with unit testing and Android UI testing
- Familiarity with Git, pull requests, code review, and continuous integration
- Practical understanding of mobile security, including tokens, secrets, permissions, and local data
- Clear written and verbal communication and ability to take features from ambiguity to supportable release
- Experience with MSAL, Azure AD B2C, OAuth/OIDC, passkeys, WebAuthn, or enterprise identity-provider integrations
- Experience with Hilt or Dagger dependency injection
- Experience with SignalR, WebSockets, VoIP, Azure Communication Services, or WebRTC
- Experience with multi-flavor or multi-environment builds, Play App Signing, internal testing, and staged rollouts
- Experience with Crashlytics, structured logging, and production incident triage
- Experience with cybersecurity products, security operations, incident-response tools, or regulated enterprise software
- Experience with accessibility, internationalization, feature flags, or design systems
- Comfort working with native NDK or C++ modules
Semperis Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Semperis and has not been reviewed or approved by Semperis.
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Healthcare Strength — Healthcare coverage is portrayed as strong, with medical, dental, and vision benefits highlighted alongside comments about robust care.
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Retirement Support — A very generous 401(k) match is repeatedly called out as a notable strength of the package.
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Leave & Time Off Breadth — Unlimited PTO is cited as part of a solid benefits package that supports time away from work.
Semperis Insights
What We Do
For security teams charged with defending hybrid and multi-cloud environments, Semperis ensures the integrity and availability of critical enterprise directory services at every step in the cyber kill chain and cuts recovery time by 90%. Purpose-built for securing hybrid Active Directory environments, Semperis' patented technology protects over 50 million identities from cyberattacks, data breaches, and operational errors. The world's leading organizations trust Semperis to spot directory vulnerabilities, intercept cyberattacks in progress, and quickly recover from ransomware and other data integrity emergencies. Semperis is headquartered in Hoboken, New Jersey, and operates internationally, with its research and development team distributed throughout the United States, Canada, and Israel. Semperis hosts the award-winning Hybrid Identity Protection conference and podcast series (www.hipconf.com) and built the free Active Directory security assessment tool, Purple Knight (www.purple-knight.com). The company has received the highest level of industry accolades, recently named to Deloitte's Technology Fast 500™ list for the second consecutive year (2020-2021), and ranked among the top three fastest-growing cybersecurity companies in the 2021 Inc. 5000 list. Semperis is a Microsoft Enterprise Cloud Alliance and Co-Sell partner.
