Mobile Engineer (iOS and Android)

TrueNorth®; Manchester; On-site; GBP 90,000 - 110,000; Full time

Job summary

TrueNorth is seeking a Senior Mobile Software Engineer to drive mobile excellence across iOS and Android platforms. You will contribute to both native and cross‑platform initiatives, shaping the mobile strategy and collaborating with product managers, designers and engineers to deliver secure, scalable experiences.

The role requires hands-on development, deep knowledge of React/React Native, Expo tooling, and experience with modern development workflows.

Qualifications

• Experience in mobile development for iOS and Android.
• Proficient with React and React Native tooling.
• Strong understanding of app deployment and release processes.

Responsibilities

• Provide technical leadership across mobile architecture and modernization.
• Develop and maintain iOS and Android apps.
• Contribute to platform and technology strategy.
• Collaborate with cross-functional teams to deliver features.
• Mentor engineers and promote engineering best practices.

Skills

Mobile development

React

React Native

CI/CD

Agile

Cloud platforms

Tools

Expo

Vite

Vitest

Node.js

Job description

Senior Mobile Software Engineer (iOS & Android)

About the Role

We are partnering with an innovative technology business that develops digital products used by a large and growing user base. As part of continued growth, they are looking for a Senior Mobile Software Engineer to help shape the future of their mobile and web platforms.

This is a hands-on engineering role where you'll contribute across the full software development lifecycle, working on both native and cross-platform mobile applications while supporting broader software engineering initiatives. You'll collaborate closely with product managers, designers and engineers to build scalable, secure and user-focused solutions.

Key Responsibilities

• Provide technical leadership across mobile application architecture, development and modernisation initiatives.
• Support the development and maintenance of both iOS and Android applications.
• Contribute to long-term platform and technology strategy.
• Optimise application performance, reliability and user experience.
• Investigate, troubleshoot and resolve production issues.
• Collaborate with cross-functional teams to deliver new features and enhancements.
• Develop, test and deploy scalable, maintainable and secure software solutions.
• Contribute across mobile, web and backend technology stacks where required.
• Support continuous improvement initiatives and engineering best practices.
• Mentor and support other engineers within the team.
• Stay current with emerging technologies and industry trends.

Required Skills & Experience

• Strong commercial experience developing mobile applications for both iOS and Android.
• Commercial experience with React and React Native.
• Experience with modern React Native tooling and ecosystems.
• Understanding of native mobile development and platform concepts across iOS and Android.
• Experience investigating and resolving native application issues.
• Knowledge of Swift, Objective-C, Kotlin or Java.
• Experience integrating REST APIs and managing asynchronous application state.
• Understanding of component-based architecture and reusable UI development.
• Experience writing automated tests for frontend and mobile applications.
• Knowledge of mobile application lifecycles, app deployment and release processes.
• Strong understanding of responsive and adaptive user interface design.
• Experience working within Agile development environments.
• Excellent communication and stakeholder engagement skills.
• Experience with Expo, Vite, Vitest or similar modern development tooling.
• Exposure to legacy mobile technologies and application migrations.
• Experience with backend development technologies such as Node.js, Python, Java, C# or PHP.
• Knowledge of relational and non-relational databases.
• Exposure to cloud platforms such as AWS, Azure or Google Cloud.
• Experience with DevOps practices, CI/CD pipelines and containerisation.
• Experience working within regulated industries or handling sensitive data.
• Exposure to AI-powered applications or Large Language Model integrations.
• Previous technical leadership or mentoring experience.

Personal Attributes

• Strong problem-solving and analytical skills.
• Passionate about creating high-quality mobile experiences.
• Collaborative and team-oriented approach.
• Able to communicate effectively with both technical and non-technical stakeholders.
• Self-motivated with a continuous learning mindset.
• Comfortable working across multiple technologies when required.
• Strong attention to detail and commitment to engineering excellence.
• Proactive approach to improving products, processes and team performance.