Android Developer at Betsson's Tech Hub in Málaga, contributing to high - traffic mobile applications. Collaborating in a hybrid setup within a multicultural team.
About the role
- Android Developer focusing on Kotlin and SDKs with AI integration at GFT. Building efficient mobile applications with advanced payment technologies and observability.
Responsibilities
- Create and maintain Kotlin SDKs/libs for integration (HTTP clients, JSON/Protobuf serialization, semantic versioning, retry policies, circuit breaker, robust JNI wrappers)
- Standardize contracts between mobile and BFF; develop simulators/mocks (mock BFF, mock mSiTef/SiTef-like) to accelerate Android development and QA testing
- Implement complete mobile observability: OpenTelemetry (OTel) instrumentation in the Android app, trace correlation across mobile → JNI → BFF, and creation and maintenance of dashboards (e.g., Grafana, Datadog or similar)
- Integrate AI on mobile: TFLite / ONNX / ML Kit models for heuristics to prioritize feature flags/over-the-air updates, detect usage/failure patterns, and proactively suggest actions (automatic diagnostics)
- Configure and evolve mobile automation in Harness (or a similar pipeline): pre-release validations, instrumented smoke tests, degraded network simulations (throttling, packet loss) and resilience scenarios
Requirements
- Advanced Kotlin for Android (strong experience with Clean Architecture, coroutines, Flows, Jetpack)
- Solid fundamentals in JNI (Java Native Interface) and native C/C++ ↔ Kotlin integration
- Experience with efficient serialization (JSON and Protobuf)
- Telemetry and advanced diagnostics on real devices (crash reporting, performance profiling, structured logging)
- Knowledge of mobile AI/heuristics (TFLite, ML Kit, ONNX Runtime Mobile or equivalents)
- Intermediate English required (technical reading, writing, calls and documentation)
- Proven experience with EMV payments, NFC, and hardware troubleshooting (POS, payment terminals, card readers)
- Track record of creating internal reusable SDKs consumed by multiple apps and teams.
Benefits
- Multi-benefit card — choose how and where to use it.
- Scholarships for undergraduate, graduate, MBA and language courses.
- Incentive programs for certifications.
- Flexible working hours.
- Competitive salaries.
- Annual performance review with a structured career plan.
- Opportunity for international career development.
- Wellhub and TotalPass.
- Private pension plan.
- Childcare assistance.
- Health insurance.
- Dental insurance.
- Life insurance.
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
Android Engineer developing new features for Mercoin's cryptocurrency services. Collaborating with teams to enhance user experiences and improve application functionality.
Android Developer at Cruise Planners focused on Kotlin development for user - centered mobile applications. Collaborating with teams to enhance and modernize existing Android codebases in a hybrid work environment.
Staff Android Engineer at Saily working on mobile data solutions. Leading architectural decisions, optimizing performance, and collaborating in a team - oriented environment in Vilnius.
Mobile Engineer developing secure mobile data solutions for traveling customers at Saily. Collaborating with cross - functional teams using an AI - native Product Engineering culture.
Mobile Engineer developing Android solutions for Saily, enhancing connectivity for global travelers. Collaborating in autonomous teams while leveraging AI for efficient problem solving.
Mobile App Analyst supporting ongoing analysis and improvement of an Android app with 25,000 users. Collaborating with developer and content teams for data - driven recommendations.
Staff Android Engineer contributing to innovative EV charging solutions at Wallbox. Leading technical direction and mentoring in a hybrid setup based in Barcelona.
Android Engineer building scalable features for Spotify’s Android app in London. Collaborating with teams and optimizing performance while mentoring junior engineers.
Feature Lead handling technology solutions for Enterprise Payments Technology at Bank of America. Leading a team to deliver extensive payment technology solutions across global platforms.