Senior Android Engineer II

Instacart

21h • $192,000 - $242,500 • Remote

About The Position

Instacart’s Fulfillment Services organization builds the products that help our retail partners grow e-commerce revenue. Within this org, the Enterprise Picking & Tools team powers the shift-based workforces that pick items, stage orders, and hand them off to customers or delivery partners. We’re investing in new picking flows, expanding into new markets, and scaling the platform that underpins our partners’ operational success. We’re looking for a Senior Android Engineer to architect and deliver fast, reliable, and delightful Android experiences that directly impact how retailers’ associates pick orders every day. You’ll own high-visibility features end to end, collaborate closely with backend, iOS, design, product, data, and retailer partners, and help raise the bar for code quality, performance, and user experience across our Android surfaces. You’ll join a tight-knit team of 8 engineers (5 backend, 2 Android, 1 iOS) operating in a fast-paced environment. If you thrive on tackling complex problems, balancing new feature work with retailer-driven requests and technical debt, and rolling up your sleeves to deliver impact, this role is for you.

Requirements

• 5+ years of professional experience building and shipping Android applications.
• Proficiency in Kotlin and Android fundamentals, including Jetpack Compose and traditional Views/XML.
• Hands-on experience with concurrency and reactive paradigms: Kotlin Coroutines and RxJava.
• Experience integrating mobile apps with backend services using RPC, RESTful APIs, and WebSockets.
• Demonstrated debugging and analytical skills using Android Studio tooling, profilers, and logs.
• Proven track record contributing to code reviews and technical design documents with cross-functional partners.
• Experience instrumenting apps for analytics, crash reporting, and performance monitoring.
• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.

Nice To Haves

• Experience with monitoring and observability tools such as Datadog and Sentry.
• Expertise in profiling and performance optimization on Android (startup, rendering, memory, and network performance).
• Familiarity with feature flagging, staged rollouts, and A/B testing on mobile.
• Experience building large-scale, multi-tenant enterprise apps or operations tools.
• Exposure to AI-assisted development and agentic coding workflows.
• Domain experience in retail, logistics, or fulfillment systems.

Responsibilities

• Architect, build, and maintain complex Android features using Kotlin, Jetpack Compose, and modern Android components.
• Implement pixel-perfect UIs that faithfully match designs and scale across devices, with a focus on accessibility and internationalization.
• Integrate with backend services via RPC, REST, and WebSockets to deliver resilient offline and real-time experiences.
• Own feature areas end to end—from technical design and instrumentation to rollout, monitoring, and iteration—driving measurable gains in picker speed and accuracy.
• Participate in code reviews, technical design reviews, and release planning to uphold high engineering standards and accelerate team velocity.
• Profile, benchmark, and optimize app performance; track stability and quality with observability and crash monitoring tools.
• Collaborate with backend, iOS, product, design, data, and retailer stakeholders to align goals, manage trade-offs, and deliver cross-functional outcomes in a rapidly evolving environment.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level