Senior Software Engineer - Mobile (Android)

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.