Senior Mobile Engineer

We’re driven by ambition and guided by a bold vision for the years ahead. As we scale our profitable ecosystem of tools and services, we’re seeking a standout Senior Mobile Engineer to help us go to the next level. In this position, you will report directly to an Engineering Manager
.

Zubale is a technology company that enables retailers to win in eCommerce. We serve a wide range of retailers from supermarkets, specialty stores, pharmacies, department stores and fashion brands across Mexico, Brazil, Chile, Costa Rica, Peru and Colombia. How? We have three key products:

1)
Flexifleet
:
Freelancer Marketplace to perform picking, packing, and delivery tasks for retailers and aggregators.

2)
Fulfillment Optimizer: Modular Software to increase productivity in eCommerce picking, packing and delivery.

3)
Consumer Connect
: AI Whats App Conversational Commerce to boost sales and elevate customer experience.

We are passionate about helping brands, aggregators, and retailers optimize their eCommerce operations, lower costs, and boost profitability. Backed by over $70M USD in venture capital, we’ve delivered consistent growth over the past six years and completed more than 100 million orders through our platform. Today, we serve 100+ customers and engage thousands of freelancers across our network. We surpassed $100M in annualized revenue and we are a profitable company.

And this is just the beginning. We're building a profitable, scalable ecosystem — and our vision is to become the #1 partner for retailers to grow their eCommerce business.

• A Senior Mobile Developer specialized in React Native to design, build, and scale mobile applications used by thousands of users.
• An AI-first developer, that owns and delivers high-quality code.
• You enjoy owning end-to-end mobile experiences, moving fast, and collaborating with cross-functional teams to deliver high-quality products.
• You play a key role in our mobile architecture, technical decision-making.
• You work closely with Product, Design, Backend, QA Automation teams to ship high-impact features with speed, quality, and reliability.

• Design and implement scalable React Native features for iOS and Android.
• Own core architectural decisions for mobile platforms, including navigation, state management, performance patterns, and code reuse.
• Integrate with backend APIs ensuring reliability, observability, and performance.
• Build reusable UI components and contribute to shared mobile libraries.
• Implement automated testing (unit, integration, end-to-end).
• Optimize application performance, memory usage, and startup times.
• Collaborate with QA Automation to ensure high test coverage.
• Partner with Product and Design from ideation to delivery to ensure feasibility and clarity.
• Participate in code reviews, architecture discussions, and sprint planning.
• Identify opportunities for technical improvements that increase speed, stability, or developer experience.
• Drive proof-of-concepts and contribute to strategic technical roadmaps.

• Strong experience building and releasing React-Native mobile apps
  .
• Experience publishing apps to the App Store and Google Play
  .
• Deep knowledge of RN architecture (navigation, state management, animations).
• Strong experience debugging, profiling, and optimizing RN apps.
• Familiarity with CI/CD for mobile (i.e. Bitrise.)
• Experience integrating with backend services
• Excellent communication skills and ability to work cross-functionally.
• High adoption of AI IDEs, like Cursor
• Studies: Bachelor's degree or equivalent experience in a quantitative field (Computer Science, Engineering)
• Experience with OTA updates (Expo Updates, Code Push).
• Experience in a startup or high-growth environment.
• Background in automated QA for mobile.
• Experience building shared UI kits or monorepo setups
• Experience building agentic-ai systems with Langchain or Google SDK

Mid-Senior level

Contract

Software Development

The Woodlands, TX $-$ 2 weeks ago