Android Tech Lead

Ztek Consulting INC

Washington (District of Columbia)

On-site

USD 150,000 - 200,000

Full time

7 days ago

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Job summary

Ztek Consulting INC is seeking a senior Android developer to lead the design, development, and delivery of enterprise-grade Android applications. You will define architecture standards, mentor engineers, and drive modern Android practices including Jetpack Compose and Kotlin Coroutines, while ensuring secure payments and robust performance.

You will collaborate with product, UX, backend, and security teams to implement wallet, maps, proximity, and NFC features, and oversee CI/CD, testing, and

Qualifications

8+ years of Android development experience.
Proficiency in Kotlin, Jetpack components, Google Wallet/Pay, Maps, UWB, NFC.
Experience with secure networking, offline patterns, and testing.
Leading Android development teams and conducting architecture/code reviews.
Deep knowledge of Android security, architecture components, and CI/CD.

Responsibilities

Lead design, development, and delivery of enterprise Android apps and mobile platform initiatives.
Define architecture standards, coding guidelines, and best practices.
Drive technical decisions for scalable, secure, maintainable apps.

Skills

Android development

Kotlin

Jetpack components

Google Wallet/Google Pay

Maps/UWB/NFC

Secure networking

Testing

Android architecture

Code reviews/mentorship

CI/CD

Tools

Jetpack Compose

Hilt/Dagger

Retrofit/OkHttp

REST APIs

Mobile security best practices

Job description

Must Have Technical/Functional Skills

8+ years of Android development experience.

Strong proficiency in Kotlin, Jetpack components, Google Wallet, Google Pay, Maps, UWB, NFC.

Experience with secure networking, offline patterns, and testing.

Roles & Responsibilities

Role Summary:

Technical Leadership

Lead the design, development, and delivery of enterprise-grade Android applications and mobile platform initiatives.
Define and enforce Android architecture standards, coding guidelines, and development best practices.
Drive technical decision-making for mobile solutions, ensuring scalability, maintainability, security, and performance.
Conduct architecture reviews, design discussions, and technical feasibility assessments for new features and initiatives.

Team Leadership & Mentorship

Mentor and guide Android developers through code reviews, pair programming, and technical coaching.
Support team members in resolving complex technical challenges and improving engineering practices.
Promote a culture of quality, innovation, continuous learning, and engineering excellence.

Modern Android Development

Drive adoption of modern Android technologies including Kotlin, Jetpack Compose, Coroutines, Flow, Hilt, and Android Architecture Components.
Establish reusable frameworks, shared libraries, and common components to improve development efficiency.
Ensure compliance with Android platform guidelines, accessibility standards, and mobile security best practices.

Security & Compliance

Lead implementation of secure mobile payment solutions, tokenization strategies, authentication mechanisms, and PCI-compliant payment flows.
Ensure adherence to Android security best practices, including secure storage, encryption, certificate pinning, biometric authentication, and device integrity validation.

Delivery & DevOps

Collaborate with Product Owners, UX teams, Architects, Backend teams, and Business Stakeholders to translate business requirements into technical solutions.
Drive CI/CD adoption, automated testing strategies, release management, and Play Store deployment processes.
Monitor application health through analytics, crash reporting, performance monitoring, and observability tools.

Stakeholder Management

Act as the primary technical point of contact for Android-related discussions with client stakeholders and cross-functional teams.

Participate in sprint planning, estimation, backlog refinement, and release planning activities.

Provide technical leadership in troubleshooting production issues and driving root-cause analysis.

Additional

Must Have Technical/Functional Skills:

Strong expertise in Jetpack Compose and Material Design 3.
Hands-on experience with Kotlin Coroutines, Flow, StateFlow, and SharedFlow.
Experience with Hilt/Dagger dependency injection frameworks.
Strong understanding of Android Architecture Components including ViewModel, Navigation Component, Room, and WorkManager.
Experience with Retrofit, OkHttp, REST APIs, and secure API integrations.
Experience implementing Android security best practices including Keystore, Biometric Authentication, and Play Integrity APIs.
Experience leading Android development teams and conducting architecture/code reviews.

We are seeking a highly skilled Android Developer with deep hands‑on experience in building digital wallet,

payment, location-based, and proximity interaction features using UWB and NFC technologies.

Key Responsibilities:

Wallet & Payments:

Implement Google Wallet integrations including passes, offers, loyalty cards, transit passes, and identity flows.
Develop Google Pay payment flows including payment tokenization, merchant validation, and secure transaction handling.
Integrate with payment gateways and implement validation, error handling, and reconciliation.
Develop mapping features using Google Maps SDK and Location Services API.
Implement geofencing, background location tracking, and fused location optimization.
Build custom map layers, clustering, markers, and real‑time route visualizations.
Build device-to-device ranging and proximity‑aware experiences using Android Nearby UWB APIs.
Implement secure session establishment, peer discovery, and precise distance/angle measurement.
Develop NFC features using HCE and Reader/Writer Mode.
Implement NDEF reading/writing, tag interactions, and secure element usage.

General Android Engineering: