Freelance Mobile Engineer (iOS / Swift)

Mimacom; Barcelona; Remote; EUR 83,000 - 124,000; Part time

Benefits offered by this job

Freelance / Contractor position

Long-term collaboration

Remote within Spain

English-speaking international team

Job summary

Mimacom is seeking a Freelance Mobile Engineer (iOS) to support the development of innovative digital products used by millions of users worldwide. You will join an international product team in the automotive and mobility sector, contributing to scalable iOS apps using Swift and SwiftUI.

Join an Agile engineering environment, collaborate with engineers, product managers, and designers, participate in code reviews, and drive best practices.

Qualifications

• Experience developing iOS apps with Swift.
• Strong knowledge of SwiftUI.
• Experience with Core Data, Firebase, and REST APIs.
• Experience with Contentful or other CMS platforms.
• Familiarity with GitHub and modern workflows.
• Understanding of MVVM architecture.
• Knowledge of Apple's Human Interface Guidelines.
• Professional English proficiency.

Responsibilities

• Develop iOS applications using Swift and SwiftUI.
• Build scalable and maintainable mobile features.
• Integrate REST APIs and optimize performance.
• Collaborate across teams and participate in code reviews.
• Contribute to engineering best practices and architecture discussions.
• Ensure high-quality user experiences on iPhone and iPad.

Skills

Swift

SwiftUI

Core Data

Firebase

REST APIs

Contentful

GitHub

MVVM

HIG

English

Tools

Firebase

Contentful

XCTest

XCUITest

Jira

Confluence

Slack

Job description

Are you ready to be inspired, challenged, motivated to do your best, and have fun while you're at it? We are looking for a Freelance Mobile Engineer (iOS) to support the development of innovative digital products used by millions of users worldwide.

As part of an international product team in the automotive and mobility sector, you will contribute to the development of scalable mobile applications using modern iOS technologies, collaborating closely with engineers, product managers, and designers in an Agile environment.

At Mimacom, we develop cutting-edge software across industries such as banking, retail, manufacturing, life sciences, and automotive. Behind every product is a talented team working together to solve real-world challenges through technology.

What You'll Do

As part of a cross-functional product team in the automotive and mobility sector, you will:

• Develop iOS applications using Swift and SwiftUI
• Build scalable and maintainable mobile features
• Work with Swift Package Manager, Core Data, Firebase, and Contentful
• Integrate REST APIs and optimize application performance
• Monitor and troubleshoot issues using Splunk and New Relic
• Collaborate across teams and contribute to engineering best practices
• Participate in code reviews and architectural discussions
• Ensure high-quality user experiences across iPhone and iPad applications

What You'll Need

• Experience developing iOS applications with Swift
• Strong knowledge of SwiftUI
• Experience with Core Data, Firebase, and REST APIs
• Experience with Contentful or other CMS platforms
• Familiarity with GitHub and modern development workflows
• Understanding of iOS application architecture patterns such as MVVM
• Knowledge of Apple's Human Interface Guidelines and mobile best practices
• Strong communication and teamwork skills
• Professional English proficiency

Nice to Have

• Experience with AWS, PhraseApp, or Instabug
• Knowledge of iOS testing frameworks (XCTest, XCUITest)
• Experience with CI/CD pipelines
• Familiarity with Agile tools such as Jira, Confluence, and Slack
• Experience publishing and maintaining applications in the Apple App Store
• Exposure to analytics and monitoring tools in production environments
• Freelance / Contractor position
• Long-term collaboration
• Remote within Spain
• English-speaking international team

What You Can Expect

• Work on a high-impact mobile product used by millions of users
• Join a cross-functional team of experienced engineers, product managers, and designers
• Contribute to modern iOS development using Swift and SwiftUI
• Exposure to a large-scale digital ecosystem within the automotive industry
• Modern engineering practices including Agile delivery, code reviews, CI/CD, and collaborative development workflows
• Opportunity to influence technical decisions and contribute to product evolution

Ways of Working

• Agile environment with regular team ceremonies
• Close collaboration with distributed international teams
• Focus on quality, ownership, and continuous improvement
• Fast-paced product development with real business impact

At Mimacom, we know that creative minds thrive on exciting projects. Join our team and be part of a lively community that's all about working together, growing together, and coming up with innovative ideas and technologies!