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.