Senior Mobile Developer

Remote$20 – $45
Australia

Tech Stack

Express.jsFirebaseNode.jsKotliniOSSwiftAndroidJava

Job Description, Responsibilities & Requirements

About the Position

We are looking for a Senior Mobile Developer with expertise in Swift and Kotlin to join our team for remote contract roles at top product companies. This role offers continuous access to senior projects across various technologies and architectures.

Responsibilities

  • Contribute to multiple concurrent client projects spanning mobile apps and web content.
  • Build native Android features in Java/Kotlin and iOS features in Swift.
  • Work on a varied agency portfolio, requiring efficient context-switching and clean delivery across different codebases.
  • Collaborate with a team to maintain and improve the App Clip experience for a contactless payments app.

Requirements

  • 5+ years of commercial Swift / iOS experience.
  • Strong proficiency in SwiftUI and UIKit.
  • Experience with Node.js and Express.js is a bonus.
  • Familiarity with Firebase and Google Cloud backend integrations.
  • Comfortable working async with US/EU teams.
  • English: Upper-Intermediate or higher.
  • Available for 20+ hours/week - part-time and full-time both supported.

Skills

  • Swift
  • Kotlin
  • Java
  • Node.js
  • Express.js
  • iOS
  • Android
  • Firebase

We Offer

  • Competitive hourly rate: $20-$45 USD.
  • Remote work opportunities.
  • Flexible part-time and full-time engagements.
  • Continuous access to a pipeline of pre-vetted projects.

About the Company

Lemon.io is a developer talent marketplace connecting Swift Developers with funded product companies and SMBs for remote contract roles. We reject 60% of applying companies based on funding stability, product clarity, technical specs, and engineering culture.

Apply to Get Matched

Fill out a quick profile with your stack, rate, availability, and preferences. Prove your skills through a soft skills interview and a technical assessment with senior engineers. Start building and get matched with clients that fit your criteria.

Job Details

Company name:
Lemon.io
Salary:
$20 – $45
Location:
Australia
Work Mode:
Remote
Posted on TheJob:
May 19, 2026
Last checked:
Jul 1, 2026
Posted on the source:
Jun 19, 2026
Apply Now
© 2026 TheJob, Inc. All rights reserved.