Senior Software Engineer - Mobile (Android)

Open 22d

The Senior Android Developer is a hands-on senior contributor to Esyasoft's Android app, a key surface for our clients and end-users globally. The role combines high-quality individual delivery with active mentorship of mid-level Android engineers and contribution to platform direction.


The role owns:

Hands-on delivery of features and improvements to Esyasoft's Android app

Quality, performance and reliability of Android codebase

Code review and mentoring of less senior Android engineers (as required)

Contribution to architectural decisions on the Android codebase


Key Responsibilities & Areas of Ownership

A. Android Development

Maintain and develop high-quality Android code aligned to agreed technical requirements

Work closely with the Lead Mobile Apps Developer and wider tech team to refine requirements and create technical documentation

Provide hands-on technical knowledge in Android architecture, design and ongoing improvement

B. Architecture, Patterns and Practice

Develop using modern Android architecture (MVI, Jetpack Compose)

Champion SOLID principles, clean architecture and testable code

Contribute to architectural decisions across the Android codebase

C. Quality, Code Review and Releases

Write well-tested code (unit tests as standard); partner with the QA team on integration and UI test coverage where relevant

Participate in code review with rigor

Support release management — staged roll outs, monitoring, post-release follow-through

D. Cross-Functional Collaboration and Mentoring

Communicate clearly with non-technical stakeholders including product and design — explain trade offs without losing them

Work with backend and data teams to ensure any blockers or issues with APIs or data are resolved

E. Security, Data Privacy and Compliance

Adhere to Esyasoft's data protection and security policies — Cyber Essentials, ISO 27001 and PCI-DSS where relevant

Embed secure-by-default patterns in Android-specific code — secure storage, certificate pinning, secrets management

F. Learning and Engineering Growth

Keep up with the evolving Android ecosystem — new APIs, library updates, platform changes

Bring practical innovation into the team — prove value first, then adopt



Requirements

Key Skills, Attributes and Experience

Required Skills & Experience

Demonstrable senior-level commercial experience as a native Android developer

Strong commercial experience with Kotlin (and Java where existing) — MVVM, Jetpack components and the modern Android development stack

Extensive experience of RESTful API and third-party integration

Experience of TDD, BDD or other code testing practices; strong understanding of data structures and algorithms

Desirable Skills & Experience

Commercial experience with Google Maps or other mapping platforms; e-commerce or payment gateways

Experience with Kotlin Coroutines, Flows and Jetpack Compose

Exposure to automated UI testing (Espresso) and Android Auto or wearables

Key Attributes

Curious — actively keeps up with Android evolution; willing to experiment responsibly

Pragmatic — values clarity and shipped quality over cleverness

Collaborative — communicates confidently with the wider business; comfortable in a multi-disciplinary team


Use of Technologies

Esyasoft operates primarily within the Google ecosystem and includes the requirement to work as a competent user of:

Android (Kotlin primary; Java where existing), Jetpack, Compose

RESTful APIs, Firebase, Google Play services, mapping and payment integrations

Mobile CI/CD (Fastlane, GitHub Actions); crash and performance tooling (Crashlytics, Sentry)


This role may also require flexibility to work with new mobile platforms and tools as Esyasoft's mobile strategy evolves.