Senior Android Engineer

Job Title: Senior Android Engineer
Location: London when required
Salary/Rate: £530 Daily
Start Date: 13/07/26
Job Type: Initial 5 month contract

Company Introduction
We have an exciting opportunity now available with one of our sector-leading consultancy clients! They are currently looking for a skilled Android Engineer r to join their team for an initial five month contract.

Job Responsibilities/Objectives

We are seeking an experienced Senior Android Developer to design and build high-quality native mobile applications with modern, scalable architecture. The ideal candidate holds active SC clearance and brings strong experience in delivering performant, secure, and user-focused Android solutions.

• Design, develop, and maintain native Android applications using Kotlin/Java and the Android SDK
• Integrate RESTful APIs and external services into mobile workflows
• Optimise application performance, including caching strategies, offline support, and API efficiency
• Support production releases, ensuring readiness for Google Play Store submission
• Address Play Store compliance issues and respond to rejection feedback
• AI Engineering & Development Practices
• Leverage AI agents and coding assistants (eg, GitHub Copilot) for code generation, refactoring, and testing
• Review and validate all AI-generated code prior to production use
• Use AI tools to support debugging, root cause analysis, and impact assessment

Required Skills/Experience
The ideal candidate will have the following:

• Strong experience with Kotlin (preferred) and/or Java, and the Android SDK
• Proven experience integrating REST APIs (or similar services)
• Hands-on knowledge of Google Play Console, app signing, and release management
• Experience with mobile performance optimisation and secure coding practices
• Familiarity with modern Android architecture components (eg, MVVM, Jetpack libraries)
• Active SC clearance or eligible

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.