Senior Android Tech Lead, FinTech Platform

UMO; Lisboa; Hybrid; EUR 70,000 - 100,000; Full time

Benefits offered by this job

24 days annual leave

Paid sick leave

Observance of public holidays

Home office stipend

Learning budget

Path to executive leadership

Job summary

UMO is seeking a Senior Android Engineer to drive native Android development for our fintech platform. You will own features end-to-end, focusing on high-performance, secure experiences across fiat, crypto, and investments.

You will work with Kotlin, Jetpack Compose, MVVM, and modern architectures while collaborating with backend squads to deliver fluid mobile experiences that scale with our multi-asset product suite.

Qualifications

• 3+ years commercial experience building native Android apps.
• Strong proficiency in Kotlin and Jetpack Compose.
• Experience with modern architecture patterns (MVVM/MVI, Clean Architecture).
• Security-minded development for financial/sensitive data apps (Keystore, MFA).
• Proven testing and debugging skills (JUnit, Mockito/MockK).
• Ability to own features from design to production with minimal supervision.
• Excellent communication in English and collaborative mindset.

Responsibilities

• Build, test, and maintain high-performance native Android features (accounts, transactions, multi-asset dashboards).
• Collaborate with backend teams to securely stream real-time financial data via REST.
• Implement strong client-side security, biometric auth, secure storage, and MFA flows.
• Translate designs into pixel-perfect UI with Jetpack Compose and Material Design.
• Write unit/integration tests, review code, and optimize performance across devices.
• Plan sprints, align with Product goals, and deliver on technical roadmaps.

Skills

Android

Kotlin

Jetpack Compose

MVVM

Clean Architecture

Mobile security

Unit Testing

End-to-end ownership

Tools

Android Keystore

JUnit

Mockito/MockK

Job description

UMO is seeking a Senior Android Engineer to drive native Android development for our fintech platform. You will own features end-to-end, focusing on high-performance, secure experiences across fiat, crypto, and investments.

You will work with Kotlin, Jetpack Compose, MVVM, and modern architectures while collaborating with backend squads to deliver fluid mobile experiences that scale with our multi-asset product suite.