Legion

Software Engineer, Mobile Platform

Legion

full-time

Posted on:

Location Type: Hybrid

Location: Bucharest • Romania

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Tech Stack

AndroidFirebaseiOSJenkinsKotlinObjective-CReactReact NativeSwift

About the role

  • Own and evolve core mobile frameworks, CI/CD pipelines, automation processes, and deployment strategies to accelerate development efficiency and reliability.
  • Manage native integrations such as Push Notifications, App Security, and other platform services that are critical to mobile functionality and user experience.
  • Collaborate cross-functionally with product managers, designers, QA, and other engineering teams to analyze, design, and deliver scalable mobile features.
  • Participate actively in engineering processes including code reviews, design reviews, sprint planning, daily stand-ups, sprint reviews, and retrospectives.
  • Write clean, maintainable, and efficient code that adheres to internal standards and industry best practices across both iOS and Android platforms.
  • Drive technical decisions based on data, metrics, and real-world usage to ensure thoughtful, long-term solutions.
  • Continuously optimize for performance, scalability, observability, and reliability across mobile applications serving millions of users.
  • Please note that this role involves participation in an on-call rotation

Requirements

  • 3-5 years in either Android (Kotlin) or iOS (Swift/Objective-C) is required, with an ability to collaborate across platforms
  • 3+ years of exposure to CI/CD pipelines for mobile (e.g., Bitrise, GitHub Actions, Jenkins, Fastlane)
  • 3+ years experience with designing and building APIs for Mobile consumption
  • Experience with React Native
  • Experience owning or contributing to mobile frameworks, SDKs, or libraries used across multiple apps or teams
  • Familiarity with release automation, versioning, and app store deployment (TestFlight, Google Play Console)
  • Experience with unit, integration, and UI testing for mobile apps
  • Experience in managing frameworks/systems e.g. Bitrise, Firebase
Benefits
  • Health Benefits
  • Paid Time Off and Paid Holidays
  • Equity
  • Monthly Wellness Reimbursement
  • Meal Vouchers
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
KotlinSwiftObjective-CCI/CD pipelinesAPIsReact Nativeunit testingintegration testingUI testingmobile frameworks
Soft Skills
collaborationcommunicationproblem-solvingtechnical decision-makingcode reviewdesign reviewsprint planningagile methodologiesperformance optimizationreliability