Mobile Engineer

Senior Mobile Engineer (React Native)

Location: London / Hybrid (twice a month in office)

Salary: Up to £80,000 + benefits

Our client is a technology-led services company focused on improving how operational teams work in the field. By combining modern software with a distributed delivery model, they build digital products that support real-world operations across a wide range of environments.

With a strong emphasis on product quality, data-led decision making, and continuous improvement, the business is investing significantly in its mobile platforms to support upcoming product launches and long-term growth.

The Opportunity

They are hiring a Senior Mobile Engineer to take ownership of their React Native applications and help shape the future of mobile across the business.

This is a hands-on leadership role where you'll:

• Own technical direction and architectural decisions for mobile
• Lead the build of a brand-new greenfield mobile app (iOS & Android)
• Raise engineering standards around performance, testing, and reliability
• Work closely with product, backend, and design teams to ship impactful features
• Mentor engineers and help grow a mobile team around you over time

You'll be joining at a key moment, with a packed roadmap and a flagship product moving into MVP and customer rollout this year.

What You'll Be Working On

• A modern React Native / TypeScript mobile application used by operational teams in the field
• Greenfield development for a new risk-management product
• Scalable, well-tested mobile architecture
• Real-time, data-driven tools used in mission-critical scenarios

Tech Stack

• Languages: TypeScript, JavaScript
• Mobile: React Native, Expo
• State & Data: TanStack Query, Zustand
• Web: React, Next.js
• CI/CD: GitHub Actions
• Backend: Node.js, Java, Python
• Cloud: AWS (Lambda, S3, CloudFront, EC2), Docker, Terraform
• Data: PostgreSQL

What They're Looking For

Technical

• 4+ years' experience building production-grade mobile applications
• Strong React Native and TypeScript experience
• Solid understanding of mobile performance, security, and best practices
• Experience writing automated tests and maintaining high code quality
• Comfortable working across the stack and collaborating with backend teams

Ways of Working

• Natural technical leader who mentors and raises the bar
• Pragmatic, product-focused, and comfortable making trade-offs
• Strong communicator who works well with engineers, product, and stakeholders
• Collaborative, transparent, and easy to work with

Why Apply?

• Up to £80,000 salary (DOE)
• Hybrid working with flexible office attendance
• Greenfield product ownership and real technical influence
• Clear opportunity to build and lead a mobile function
• Supportive, low-ego engineering culture
• Strong investment in learning, development, and career progression

Interview Process

• Introductory conversation
• Technical assessment
• Final interview

If you're a senior mobile engineer looking to own architecture, build meaningful products, and grow a team in a pragmatic, high-trust environment, this is an excellent opportunity.