Jobs in the United States

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Added 24 mins ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
CORP-Corporate Office
United States
We are looking for you to join our team as a Principal or Sr. Principal RF Microwave/Mixed Signal Design Engineer based out of Baltimore (Linthicum), MD. This is full time onsite position…
Added 24 mins ago
Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4)
SP - Space Components
United States
Northrop Grumman’s Space Sector is seeking a Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4) to join our MEP organization in Goleta, CA.
Added 34 mins ago
Sr. Application Security Engineer
American Express Global Business Travel
Cheyenne, WY
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 37 mins ago
Sr. Application Security Engineer
American Express Global Business Travel
Providence, RI
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 42 mins ago
Sr. Application Security Engineer
American Express Global Business Travel
Frankfort, KY
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 51 mins ago
Software Engineer Sr - E3
Lockheed Martin
Rockville, MD · Littleton, CO · Rockville · Littleton
The SDA's Tranche 2 Beta Transport Layer (T2B) is a mesh network of over one hundred optically interconnected satellites that provides a resilient, low-latency, high-volume data transport…
Added 51 mins ago
Software Engineer Sr - E3
Lockheed Martin
Rockville, MD · Rockville
…(SDNX) risk reduction for the fielding of a future Hybrid Space Network (HSN) by prototyping an advanced hardware network appliance for use with software defined networking…
Added 51 mins ago
Electronics Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Join Our Team as an Electrical Engineer and become a member of the US Navy's Fleet Ballistic Missile (FBM) D5 Life Extension 2 (D5LE2) Electrical Ground Support Equipment (EGSE team.
Added 51 mins ago
Electronics Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Join Our Team as an Electrical Engineer and become a member of the US Navy's Fleet Ballistic Missile (FBM) D5 Life Extension 2 (D5LE2) Electrical Ground Support Equipment (EGSE team.
Added 51 mins ago
Electronics Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Join Our Team as an Electrical Engineer and become a member of the US Navy's Fleet Ballistic Missile (FBM) D5 Life Extension 2 (D5LE2) Electrical Ground Support Equipment (EGSE team.
Added 51 mins ago
Electronics Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
Join Our Team as an Electrical Engineer and become a member of the US Navy's Fleet Ballistic Missile (FBM) D5 Life Extension 2 (D5LE2) Electrical Ground Support Equipment (EGSE team.
Added 1 hour ago
Principal or Sr Principal Electronics Engineer
Northrop Grumman
Baltimore
We are looking for you to join our team as a Principal or Senior Principal Electronics Engineer based out of Baltimore (Linthicum), MD. This is a fulltime onsite position that offers the…
Added 1 hour ago
Principal/Sr. Principal RF Microwave/Mixed Signal Design Engineer
Northrop Grumman
Baltimore
We are looking for you to join our team as a Principal or Sr. Principal RF Microwave/Mixed Signal Design Engineer based out of Baltimore (Linthicum), MD. This is full time onsite position…
Added 1 hour ago
Principal / Sr. Principal Cyber Systems Administrator
Northrop Grumman
Huntsville
Engineer and maintain monitoring and observability solutions (e.g., Prometheus, Grafana, log aggregation, tracing) to provide real-time insight into system and network health.
Added 1 hour ago
Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4)
Northrop Grumman
Goleta
Northrop Grumman’s Space Sector is seeking a Principal/Sr. Principal RF Microwave Design Engineer (Level 3 or 4) to join our MEP organization in Goleta, CA.
Added 1 hour ago
Sr Principal Engineer Electronics
Northrop Grumman
Oklahoma City
Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Electronics Engineer (Level 4) to join the team of qualified individuals. Position is located in Oklahoma City, OK.
Added 2 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Bismarck, ND
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 2 hours ago
Sr. Software Engineer (Starlink)
SpaceX
Redmond, WA
As a Sr. Software Engineer on the Starlink Enterprise Products team you will define, build, and deploy product features and capabilities that unlock new opportunities to advance global…
Added 2 hours ago
Critical Environments Operator IV
CyrusOne Management Services LLC
Chandler, AZ
Build circuits in online database network management tool, perform circuit audits, and assist in special projects as required. Perform Level 1 response on Windows servers for non-managed…
Added 3 hours ago
Sr. Systems Engineer – Mainframe API Services
U.S. Bank
Cincinnati, OH
U.S. Bank is seeking a Sr. Systems Engineer – Mainframe API Services to support highly available mainframe API platforms and modernization initiatives. This role requires hands-on expertise…
Added 3 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Columbus, OH
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…
Added 3 hours ago
Sr. Network Engineer
CACI, INC.-FEDERAL
Remote, United States
CACI’s Enterprise IT (EIT) Sector is seeking a Sr Network Engineer in support of a Global Enterprise Network Modernization (GENMOD) contract.
Added 4 hours ago
Sr. React Native Engineer | US/Canada
Pack.com
Remote, United States
…mobile surface. We are looking for an elite Senior React Native Engineer to lead the engineering of our iOS and Android mobile apps from development builds through app store…
Added 4 hours ago
Sr. Thermal Engineer (Starlink)
SpaceX
Bastrop, TX
…internet to millions of users through a vertically integrated network of satellites, receiver antennas, lasers, gateways, and sophisticated software. We design, build, test, and operate…
Added 4 hours ago
Sr. Application Security Engineer
American Express Global Business Travel
Augusta, ME
We are seeking an experienced Senior Application Security Engineer to join our team in the corporate travel industry. This remote position requires a unique blend of application development…

Pack.com

Sr. React Native Engineer | US/Canada

Remote, United States

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Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

About Pack.com Pack.com is a stealth, high-dopamine gamified shopping platform combining mystery packs, loot-box mechanics, and physical goods. Backed by an established iGaming and CS2 operator that has generated substantial market traction since 2024, Pack.com brings the thrill of gaming unboxings to real-world consumer products. Our platform core is already ~98% built on the web, and we are now expanding our mobile surface. We are looking for an elite Senior React Native Engineer to lead the engineering of our iOS and Android mobile apps from development builds through app store distribution. The Mission In our ecosystem, fluid animations and instant responsiveness are not cosmetic afterthoughts - they are the core product. We need a mobile engineer who treats 60fps as the bare minimum, understands native thread architecture, and has built complex, gesture-driven unboxing flows on production mobile devices. Note: Pure React web experience or wrapper-based webviews will not fit this role. You must have shipped and maintained native mobile builds on the App Store and Google Play. What You'll Own (Hands-On IC Execution)

High-Dopamine Mobile Mechanics: Write clean, modular TypeScript to architect tactile, gesture-driven interactions - such as mystery pack tears, loot-box carousel reveals, card flips, and real-time drop tickers - using React Native Reanimated, Gesture Handler, and Skia.
Frame-Rate & Native Performance: Hunt down and eliminate thread bottlenecks, dropped frames, sluggish view hierarchies, and memory leaks across both iOS (iPhones/iPads) and Android (high-end to budget hardware).
Resilient Data Layer: Build out resilient mobile query pipelines with GraphQL and TanStack Query, handling optimistic cache updates, pagination, network dropouts, and reconnection reconciliation during live unboxings.
Dual-Store Release Operations: Manage end-to-end deployment workflows across both platforms: Apple App Store (TestFlight, provisioning profiles, store review navigation) and Google Play (Internal/Closed testing tracks, store policy compliance), utilizing Expo (EAS), fastlane, Sentry crash monitoring, and safe OTA updates.
Native Bridges & New Architecture: Leverage React Native’s New Architecture (Fabric, TurboModules) and wire up custom native modules or haptics where JavaScript bridges hit performance limits.

Requirements

Shipped Native Mobile Track Record: Strong production experience building and maintaining cross-platform mobile apps in React Native and TypeScript, with direct involvement in apps shipped to both the Apple App Store and Google Play.
Animation & Gesture Fluency: Deep, hands-on production experience with React Native Reanimated (worklets, shared values) and Gesture Handler. Experience with Shopify React Native Skia or custom canvas shaders is a major advantage.
Mobile Performance Profiling: Ability to profile real devices using Xcode Instruments, Android Studio Profiler, and React Native DevTools to diagnose UI/JS thread contention and excessive memory footprints.
State & Network Resilience: Hands-on mastery of GraphQL and TanStack Query (React Query) for managing client caching, race conditions, mutations, and offline/reconnection state handling on unstable mobile connections.
Dual-Platform Release Knowledge: Practical experience managing builds and submissions through both Apple App Store Connect and the Google Play Console, as well as configuring crash monitoring (Sentry) and over-the-air (OTA) updates.
Focused Individual Contributor: You want to spend your time writing production code, optimizing performance, and shipping releases in a tight engineering team (~5 devs), without people management overhead or corporate red tape.

Benefits

Direct IC Ownership: Pure technical focus with full autonomy over code quality, implementation details, and tooling choices directly alongside technical leadership.
High-Growth Ecosystem: The financial backing and operational stability of a proven 2024 parent operator paired with the impact of rolling out a brand-new native mobile app.
100% Remote: Flexible, asynchronous work environment centered on shipped features and smooth mobile experiences.

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Skills

React Native
TypeScript
Shopify
Xcode
GraphQL
React
Team leadership

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