Principal Engineer

About the Role

Walmart's Ver el correo electrónico en click.appcast.io is the mobile experience that puts the power of Walmart in every associate's hands — 2M+ associates globally, across every store, DC, and market. As the Principal Engineer for Ver el correo electrónico en click.appcast.io Global Platform (International), you'll be the senior technical anchor responsible for how our International markets (Mexico, Canada, Chile, Central America) consume, adapt, and extend the Ver el correo electrónico en click.appcast.io Global Platform.

This isn't a role that ships features. This is the role that ensures features can be shipped — on time, at scale, across languages, currencies, and regulatory realities — without every market team reinventing the wheel. You'll own the technical direction for how Ver el correo electrónico en click.appcast.io lands in every International market, feed our market-specific requirements back into the Global Platform, and coach the Staff engineers who execute the day-to-day delivery

What You'll Do

Own the technical direction for Ver el correo electrónico en click.appcast.io Global Platform (International)

• Author and evolve the Ver el correo electrónico en click.appcast.io International Platform strategy — a multi-quarter technical roadmap covering integration surface, extension points, multi-market rollout patterns, and the standard operating model for market teams to consume the Global Platform.
• Represent International Tech in US Ver el correo electrónico en click.appcast.io Global Platform forums — ensuring our market realities (LGPD, LFPDPPP, local payment methods, language, currency, offline-first store use cases) are reflected upstream, not bolted on downstream.
• Chair the International Ver el correo electrónico en click.appcast.io Design Review (bi-weekly, cross-market) and set the ADR / RFC standard the org will operate by.

Drive cross-market platform adoption and parity

• Define and publish an International Parity Matrix — the objective view of how each market compares to the US Ver el correo electrónico en click.appcast.io baseline (features shipped, platform versions consumed, technical debt outstanding, gaps prioritized).
• Partner with each market's Engineering Manager and Staff engineers on market-specific rollout plans for Global Platform capabilities.
• Own the mini-app / plug-in extension model for International, including the table.loop registry governance, semver policy, and deprecation lifecycle.

Elevate the engineering practice around you

• Coach and calibrate Staff-tier engineers across MX (Firebase INTL, MAGIC frameworks, Polaris WFM Interfaces, Store Systems). Named coaching relationships, not drive-by mentorship.
• Author public engineering artifacts — ADRs, RFCs, internal blog posts, tech talks — that document how we make platform decisions at International Tech.
• Serve as calibration and promotion signal for Sr Staff and Staff SWE promo cycles.

Own International Ver el correo electrónico en click.appcast.io reliability & operational excellence

• Be the named escalation owner for Ver el correo electrónico en click.appcast.io platform-integration incidents affecting multiple markets.
• Publish a quarterly root-cause taxonomy and drive structural fixes that remove classes of incidents, not just individual firefights.
• Reduce Ver el correo electrónico en click.appcast.io International P1 / P2 incidents attributable to the integration surface by 30% year over year.

What You'll Bring Required

• 9+ years total software engineering experience, with at least 3 years at Staff, Principal, or Distinguished level.
• Built or owned a mobile platform SDK consumed by 5+ downstream app teams (e.g. Uber Base, Airbnb DLS, Meta React Native infra, Grab Kit, in-house super-app platforms.
• Deep hands-on with both native mobile (Kotlin / Jetpack Compose, Swift / SwiftUI) and cross-platform (React Native or Flutter). This role reads code across all three.
• Led a multi-market or multi-tenant rollout of a global product to at least 3 markets / tenants with different regulatory, language, or payment realities.
• Portfolio of authored engineering artifacts — ADRs, RFCs, blog posts, conference talks, patents, or open-source maintainership. If you can't produce at least one written design doc from the last 24 months, this role isn't a fit. Track record of coaching Staff engineers to promotion — ideally named on 2+ promo packets as an endorser or coaching sponsor.
• Written and verbal fluency in English; conversational Spanish is a strong plus (audience in MX is bilingual.
• Comfort with MX Central hours + occasional early-morning overlap with US Bentonville.

Strongly Preferred

• Prior work in retail, fintech, or super-app environments where the mobile app is the product (not a companion experience).
• Experience with mini-app / plug-in architectures (WeChat, Alipay, Line, Grab, or in house equivalents.
• Hands-on with Firebase (Remote Config, A/B, Crashlytics, App Distribution, FCM) at scale.
• Comfort with observability & performance engineering (Datadog RUM / mobile SDK, custom telemetry, distributed tracing across mobile → BFF → service, perf budgets.
• Familiarity with Walmart's stack — WCNP / Concord / KITT, DCS-W (Data Credential Service), GTP-BOM compliance, Kafka on Walmart platform, MAGIC framework, GEC GitHub + Sonar gates. (If not, you'll ramp fast — but familiarity accelerates Year 1 impact.
• Public engineering identity: conference speaking (Droidcon, RN Conf, WWDC labs), OSS maintainership, or a technical blog with a real readership.