Senior Mobile Engineer

About the position

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win. We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us.

Responsibilities

  • Identify outmoded methods of operation with current software and design plans for disrupting them in a non-disruptive manner.
  • Test and maintain applications or systems and related programs and procedures by using a variety of software development tools following design requirements of customer.
  • Act as a spokesperson for software design best practices.
  • Research and recommend frameworks and architectural/code design patterns.
  • Lead the design and implementation of complex iOS features for Expedia’s Car Experience applications across multiple brands.
  • Collaborate with cross functional teams, including backend engineering, product, design, and analytics teams, to integrate APIs; design, implement, and deploy application features using experimentation frameworks; integrate analytics solutions; and ensure consistency with platform architecture and quality standards.
  • Develop and execute comprehensive test strategies integrating CI/CD pipelines to maintain app reliability.
  • Drive mobile architecture design and decisions, patterns (MVVM/VIPER), and tools to ensure scalable and maintainable code.
  • Monitor and optimize application performance, proactively addressing system bottlenecks, memory leaks, and crashes using Xcode Instruments and observability dashboards.
  • Mentor and guide junior engineers, providing technical feedback, conducting code reviews, and establishing coding standards and architectural best practices for mobile applications.

Requirements

  • SwiftUI and UIKit
  • Swift and Objective-C
  • RESTful or GraphQL
  • Xcode, App Store Connect, XCTest, and Swift Package Manager
  • MVVM, VIPER, Backend-driven UI and Clean/Composable Architecture
  • GCD (Grand Central Dispatch) or OperationQueue
  • Time profiler, memory leaks, and allocations
  • Firebase Crashlytics
  • Datadog or Splunk
  • Experimentation and A/B testing frameworks

Benefits

  • medical/dental/vision
  • paid time off
  • Employee Assistance Program
  • wellness & travel reimbursement
  • travel discounts
  • International Airlines Travel Agent (IATAN) membership
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Common Interview Questions And Answers

1. HOW DO YOU PLAN YOUR DAY?

This is what this question poses: When do you focus and start working seriously? What are the hours you work optimally? Are you a night owl? A morning bird? Remote teams can be made up of people working on different shifts and around the world, so you won't necessarily be stuck in the 9-5 schedule if it's not for you...

2. HOW DO YOU USE THE DIFFERENT COMMUNICATION TOOLS IN DIFFERENT SITUATIONS?

When you're working on a remote team, there's no way to chat in the hallway between meetings or catch up on the latest project during an office carpool. Therefore, virtual communication will be absolutely essential to get your work done...

3. WHAT IS "WORKING REMOTE" REALLY FOR YOU?

Many people want to work remotely because of the flexibility it allows. You can work anywhere and at any time of the day...

4. WHAT DO YOU NEED IN YOUR PHYSICAL WORKSPACE TO SUCCEED IN YOUR WORK?

With this question, companies are looking to see what equipment they may need to provide you with and to verify how aware you are of what remote working could mean for you physically and logistically...

5. HOW DO YOU PROCESS INFORMATION?

Several years ago, I was working in a team to plan a big event. My supervisor made us all work as a team before the big day. One of our activities has been to find out how each of us processes information...

6. HOW DO YOU MANAGE THE CALENDAR AND THE PROGRAM? WHICH APPLICATIONS / SYSTEM DO YOU USE?

Or you may receive even more specific questions, such as: What's on your calendar? Do you plan blocks of time to do certain types of work? Do you have an open calendar that everyone can see?...

7. HOW DO YOU ORGANIZE FILES, LINKS, AND TABS ON YOUR COMPUTER?

Just like your schedule, how you track files and other information is very important. After all, everything is digital!...

8. HOW TO PRIORITIZE WORK?

The day I watched Marie Forleo's film separating the important from the urgent, my life changed. Not all remote jobs start fast, but most of them are...

9. HOW DO YOU PREPARE FOR A MEETING AND PREPARE A MEETING? WHAT DO YOU SEE HAPPENING DURING THE MEETING?

Just as communication is essential when working remotely, so is organization. Because you won't have those opportunities in the elevator or a casual conversation in the lunchroom, you should take advantage of the little time you have in a video or phone conference...

10. HOW DO YOU USE TECHNOLOGY ON A DAILY BASIS, IN YOUR WORK AND FOR YOUR PLEASURE?

This is a great question because it shows your comfort level with technology, which is very important for a remote worker because you will be working with technology over time...

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