Senior Android Developer (Kotlin | AI | SDKs)
Salary:
£60,000 – £85,000 base
Location:
Manchester
Employment Type:
Permanent
Seniority:
Mid–Senior Level
Tech Stack:
Kotlin, Android SDK, Jetpack, Swift (bonus), GitHub Actions, Pulumi
About the Company
Join a
global AI tech start-up
founded by a
visionary leader in the AI space
, pioneering a completely new field of
Behavioural AI
.
Their technology is redefining how humans and machines interact, using biometric and behavioural signals to create smarter, more human-like systems. This is an opportunity to
shape the Android side of a truly emerging product
, where your work will directly power how clients and users first experience their AI innovations.
The Role
As the
Senior Android Developer
, you'll take
full ownership of the Android migration process
, bringing all existing
iOS functionalities
into the Android ecosystem.
In your first 3–6 months, your mission will be to
migrate the iOS app to Android,
ensuring feature parity, smooth performance, and clean architecture. You'll also help lay the groundwork for
future expansion to tablets and wearable devices
.
Beyond migration, you'll design and build new Android apps and SDKs that enable
AI experimentation and client integration
, ensuring users have a seamless and robust experience.
This is not your typical app dev role, you'll be working at the intersection of Android engineering, SDK development, and applied AI, helping to shape products that are literally the first of their kind.
If you're a
Kotlin specialist
who thrives on ownership, architecture, and building clean, scalable mobile systems, this is your lasting opportunity to leave a visible impact on a truly emerging technology.
Key Responsibilities
* Lead the migration
of all iOS functionalities into Android — taking complete ownership of the process.
* Develop Android applications and SDKs
that enable client integration with cutting-edge AI technology.
* Collaborate cross-platform
with iOS engineers to ensure consistency and parity.
* Architect Android solutions
that are scalable, maintainable, and testable (Hexagonal Architecture, clean code principles).
* Work closely with
AI researchers
to bring experimental models to life on mobile devices.
* Potentially expand development to
tablet and wearable platforms
.
What We're Looking For:
Technical Must-Haves:
* Proven
commercial experience
as an
Android Developer / Engineer.
* Deep proficiency in
Kotlin
and hands-on experience with the
Android SDK
.
* Strong understanding of
modern app architecture
and clean, testable code.
* Familiarity with
CI/CD automation tools
(e.g. GitHub Actions, Pulumi).
* Experience with
AI, biometrics, or behavioural technology
is a major plus.
* Nice to have:
iOS/Swift experience
or willingness to pick it up for future cross-platform needs.
Soft Skills & Cultural Fit:
* Self-driven and able to work autonomously.
* A practical problem-solver who enjoys tackling complex challenges.
* Collaborative and humble — confident in your abilities but not ego-driven.
* Strong communication skills, able to work seamlessly with quieter team members.
Preferred Experience:
* Prior experience in
B2B environments
(with longer, more deliberate release cycles) over B2C.
* Track record of
taking ownership
of Android roadmaps and delivering high-quality results.
Top Priorities in the First 6 Months
1. Migrate all existing iOS functionalities
to Android.
2. Own and lead
the Android development process.
3. Deliver quickly
to meet client needs and enable product growth.
Career Growth & Future Opportunities
This role offers two exciting long-term paths:
* Own the Android function
within the company, becoming the go-to technical authority.
* Progress into a
Senior Principal Software Engineer
role covering both Android and iOS platforms.
You'll also gain exposure to applied
AI, biometrics, and behavioural computing
— areas growing rapidly across global tech markets.
Why Join
* Be part of an
early, high-impact engineering team
driving a new category of AI.
* Collaborate with a world-class team in
AI research, design, and product development
.
* Shape Android architecture from the ground up with
freedom and autonomy
.
* Competitive compensation, hybrid flexibility, and long-term growth potential.