Freelance Flutter App Developer Jobs (NOW HIRING)

ASSA ABLOY Global Solutions is part of the ASSA ABLOY Group, the global leader in access solutions. Every day, we reimagine how people move through a safer,  more open world with ease. If you've ever walked through an automatic door, stayed in a hotel, or gone through passport control, you've probably used one of our products or services. We have operations in over 70 countries and over 52,000 colleagues worldwide.

Our expertise in customer journey mapping, innovation, and service design leads to the invention of new solutions that create value for our clients and exceptional experiences for their end users. We have a fantastic opportunity for a Mobile App Developer.

Your Role in Keeping the Future in Safe Hands...

Reporting to the Principal Software Engineer, the Mobile App Developer will lead the design, development, and maintenance of high-quality cross-platform mobile applications. In this role, you will be responsible for architecting scalable solutions and collaborating with cross-functional teams to deliver seamless user experiences across iOS and Android.

Key Responsibilities in your role...

Mobile App Development & Architecture

• Design, develop, and maintain cross-platform mobile applications using Flutter and Dart for both iOS and Android platforms.

• Architect scalable, maintainable, and high-performance mobile solutions aligned with product and platform requirements.

• Implement modern mobile architecture patterns such as MVVM, Clean Architecture, or Bloc-based state management.

• Develop reusable components and maintain clean, modular code to support long-term scalability and maintainability.

• Ensure applications are optimized for performance, responsiveness, and reliability across devices.
  

Application Integration & Platform Connectivity

• Integrate mobile applications with backend services using RESTful APIs and secure authentication mechanisms.

• Implement and maintain connectivity with external hardware devices

• Support Bluetooth Low Energy (BLE) and Near Field Communication (NFC) integration within mobile applications.

• Collaborate with hardware, firmware, and backend engineering teams to ensure reliable system integration with connected devices and backend systems.

• Troubleshoot connectivity issues across mobile, hardware, and cloud services to maintain reliable system performance.

Quality Testing & Performance Optimization

• Develop and maintain unit, widget, and integration tests to ensure application stability and reliability.

• Identify, diagnose, and resolve application performance issues, bugs, and technical defects across the application lifecycle.

• Ensure mobile applications meet performance benchmarks, reliability standards, and platform requirements.

Deployment & Release Management

• Manage and support the mobile application deployment lifecycle, including release preparation and distribution through the Apple App Store and Google Play Store.

• Support post-release troubleshooting and issue resolution.

Cross-Functional Collaboration

• Work closely with UI/UX designers to translate design concepts into intuitive, high-quality user interfaces.

• Partner with backend engineers to integrate mobile features with APIs and cloud-based services.

• Collaborate with product managers and stakeholders to refine requirements, prioritize development efforts, and align deliverables with product roadmaps.

• Participate in technical discussions to ensure alignment across engineering teams.

• Provide technical insight and recommendations to support product development and feature enhancements.

Continuous Improvement & Technical Leadership

• Stay current with emerging mobile development technologies, frameworks, and industry best practices.

• Contribute to the improvement of mobile engineering standards, development workflows, and architectural decisions.

• Proactively identify opportunities to improve mobile application performance, usability, and long-term maintainability.

Ways of Working (Expectations)

• Demonstrate strong ownership of development deliverables, ensuring quality and timely completion of work.

• Communicate clearly and effectively with cross-functional teams regarding technical decisions, timelines, and risks.

• Maintain strong attention to detail when designing, building, and testing mobile applications.

• Proactively escalate technical risks or challenges that may impact product delivery or system reliability.

• Collaborate constructively with team members across engineering, product, and operations functions.

Required Skills & Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.

• Minimum 5+ years of mobile application development experience, including 3+ years focused on Flutter and Dart development.

• Strong understanding of the Flutter SDK, Dart programming language, and mobile architecture patterns.

• Experience implementing state management frameworks such as Provider, Riverpod, or Bloc.

• Proven experience integrating RESTful APIs and third-party libraries into mobile applications.

• Experience interfacing with external hardware devices through BLE, NFC, or similar protocols.

• Familiarity with native Android (Kotlin/Java) or iOS (Swift/Objective-C) development for platform-specific functionality.

• Proficiency with version control systems such as Git and development tools including Android Studio or VS Code.

• Strong problem-solving, analytical thinking, and debugging capabilities.

• Excellent communication and collaboration skills within cross-functional engineering teams.

What you can expect from us

• A competitive total rewards package aligned with market benchmarks and role scope.

• Access to tools, resources, and development opportunities to enhance technical expertise and career growth.

• A collaborative engineering environment focused on innovation, quality, and continuous improvement.

• Leadership support and clear expectations to enable success in delivering impactful mobile solutions.
• The opportunity to contribute to products used by customers around the world in security and access solutions.

Application

You can submit your application by clicking 'Apply Now'. We will not consider applications received via e-mail or through other channels. We will review applications continuously, so please apply as soon as possible.

About Us

Featured four times in Forbes' most innovative companies worldwide, we deliver innovative, safe, and convenient security solutions that provide real added value to our customers. As a group, our goal is to help billions of people experience a more open world. We're proud to boast leading positions across the majority of Europe, North and South America, Asia, and Oceania, offering products and services to our customers seeking solutions to their entrance and opening requirements, such as locks, doors, and entrance automation.

#LI-MD1 

We are the ASSA ABLOY Group
Our people have made us the global leader in access solutions. In return, we open doors for them wherever they go. With nearly 63,000 colleagues in more than 70 different countries, we help billions of people experience a more open world. Our innovations make all sorts of spaces - physical and virtual - safer, more secure, and easier to access. 

As an employer, we value results - not titles, or backgrounds. We empower our people to build their career around their aspirations and our ambitions - supporting them with regular feedback, training, and development opportunities. Our colleagues think broadly about where they can make the most impact, and we encourage them to grow their role locally, regionally, or even internationally.

As we welcome new people on board, it's important to us to have diverse, inclusive teams, and we value different perspectives and experiences.