Sushanthi Periyala

Results-driven Android Engineer with 6+ years of experience delivering secure, high-performance mobile applications across Retail, E-commerce, and Healthcare domains, including high-scale B2B platforms. Strong expertise in Kotlin, Java, Jetpack Compose, Coroutines, Flows, MVVM, Clean Architecture, Room, Hilt/Dagger, and Android SDK, with consistent success modernizing legacy systems and improving release reliability. Delivered measurable outcomes through performance tuning, modular architecture, and automated quality practices, including 30% app load-time reduction, 20% API response improvements, and test coverage growth from 55% to 90%.

Built and maintained secure mobile workflows with strong API/data protection patterns, HIPAA-aligned implementations, and resilient offline-first data strategies. Drive architecture decisions, code quality standards, and cross-functional delivery practices to improve engineering velocity and production stability. Adept at integrating AI-assisted development tools (Claude, GitHub Copilot, Google Gemini, Cursor, Windsurf) into daily engineering workflows to accelerate coding, code review, debugging, and documentation.

Senior Android Engineer — Walmart Business - Walmart - Sunnyvale, CA

(2025-10 - 2026-04)

B2B Retail and E-commerce mobile platform supporting procurement, payments, and organization management workflows

• Owned and delivered Android features across high-impact B2B commerce modules, supporting mission-critical procurement, payments, and spend-management flows across 42 of 108 modules (~39%).
• Built tax exemption and spend-governance workflows using Kotlin Coroutines and Flows for accurate real-time financial state management.
• Standardized shared product tile components and supported design system migration across 62 modules and 7 apps, reducing UI inconsistency and deprecated API risk.
• Led performance reviews for media-heavy screens, profiling ExoPlayer behavior with Android Profiler and heap-dump analysis to reduce OOM risk and improve playback stability in production.
• Broke down a monolithic config domain (26K+ LOC, 407 files) into modular boundaries, enabling parallel development and improving team release throughput.
• Modernized 90K+ lines across 10+ modules by removing deprecated Android APIs and improving observability, reducing silent failures in critical user journeys.
• Raised automated test coverage from 55% to 90% and resolved 24 flaky CI tests, improving release confidence and shortening QA/release cycles.
• Mentored junior engineers through architecture reviews, debugging sessions, and code-quality coaching.
• Leveraged AI-assisted development tools including Claude, GitHub Copilot, Google Gemini, Cursor, and Windsurf to accelerate code generation, refactoring, unit test authoring, and code review, improving day-to-day engineering productivity and reducing turnaround time on feature delivery.

Android Engineer — CVS Pharmacy - CVS Pharmacy - USA

(2024-05 - 2025-10)

Mobile pharmacy platform with secure patient and prescription workflows

• Integrated RESTful APIs to unify pharmacy services in a single Android app, improving patient data access and reducing response times by 20%.
• Built HIPAA-compliant mobile workflows using Kotlin, Java, and Jetpack Compose with secure handling of profile and prescription data.
• Improved MVVM architecture with Coroutines and Flows for real-time prescription tracking and maintainable UI state handling.
• Collaborated with backend teams on secure and scalable API contracts for reliable mobile data exchange.
• Improved client-side data sync reliability by 20% through robust request handling and state management updates.
• Automated regression and UI testing with Appium and Espresso, reducing post-release defect escape and improving release confidence.
• Strengthened CI/CD with Jenkins and cross-team quality checks to support predictable release cycles.

Android Engineer — Amazon Consumer Mobile - Amazon - India

(2021-08 - 2022-07)

Consumer-facing Android experiences with emphasis on performance, reliability, and Clean Architecture

• Developed high-performance Android features with Kotlin and Jetpack Compose, reducing app load time by 30% through profiling and memory optimization.
• Architected features using MVVM and Clean Architecture with Flows, LiveData, and ViewModel for scalable state management.
• Built reusable UI components and navigation flows using Material Design and Jetpack Navigation for consistent UX across device form factors.
• Improved offline responsiveness using Room + Coroutines-backed local persistence and async access patterns.
• Sustained 90% unit test coverage using JUnit, Espresso, and Mockito while enforcing Android Lint and code-review standards.
• Collaborated with Product and UX teams to align technical delivery with user-centric design outcomes.

Android Engineer — Remote Patient Monitoring - Philips Healthcare - India

(2020-06 - 2021-07)

Healthcare mobile applications focused on compliance, interoperability, and real-time data flows

• Developed secure remote patient monitoring workflows with application-level data protection and compliance-aware architecture.
• Implemented FHIR and HL7 standards to enable reliable interoperability between mobile apps and hospital systems.
• Improved end-to-end data flow performance for analytics-driven workflows, reducing processing delays by 40%.

Android Engineer — Enterprise Mobile Applications - NovaHire Tech - India

(2018-01 - 2020-06)

Native Android app development for enterprise use cases with emphasis on architecture and quality

• Built foundational Android applications using Kotlin/Java and MVVM with ViewModel/LiveData for clean separation of concerns.
• Developed responsive UI with Jetpack libraries and Material Design, integrating REST APIs through Retrofit with RxJava/Coroutines.
• Built unit/integration test suites with JUnit and Espresso and supported CI/CD rollout via Jenkins and GitHub Actions.

Master of Science - Computer Science - Texas A&M University-Corpus Christi (2024-05)

Bachelor's - Computer Science - India