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Android Software Engineer

bjakcareerSpainActAI Engineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Mid · 3+ yrs
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

The Android Software Engineer position at bjakcareer in Spain involves developing proactive AI-native mobile applications and suits professionals with specific Kotlin and AI integration experience. The role focuses on shaping the mobile client experience where artificial intelligence interactions form the core of the functionality.

Role Overview

This position centers on developing production-grade mobile applications for users in Spain. The professional filling this role manages the behavior, performance, and feel of artificial intelligence on mobile devices rather than working on a thin client setup.

Key Responsibilities

Construct and upkeep production mobile applications utilizing Kotlin.
Connect backend application programming interfaces for capabilities including voice, vision, chat, and recommendations.
Formulate user experience frameworks for artificial intelligence features, handling streaming outputs, retries, and partial results.
Tune memory consumption, responsiveness, and speed for heavy AI processing tasks.
Deploy logging, analytics, and feedback collection mechanisms to aid AI assessment and refinement.
Partner with backend and machine learning professionals regarding application programming interface contracts and system performance.
Maintain production stability, security, and scalability.

Requirements

Three or more years of mobile development background using Kotlin.
Practical experience incorporating artificial intelligence capabilities like language models, speech, and vision interfaces.
Comprehension of asynchronous programming methods including Coroutines and Flow.
Familiarity with structured data formats along with REST or gRPC interfaces.
Debugging and performance profiling capabilities.
Background handling latency, partial failures, and non-deterministic systems.
Experience publishing production applications on the Google Play Store.

Nice to Have

Background utilizing MLKit or light on-device inference.

Skills and Tools

Kotlin
Java
SQL
noSQL
TensorFlow Lite
Coroutines
Flow
REST
gRPC
MLKit

About the Company

Actai builds proactive applications for users globally who are not accustomed to complex prompting, aiming to introduce intelligence to workflows, conversations, errands, and organizing with minimal prompting. The organization operates as a small, hands-on, high-talent-density team that makes collective decisions and executes independently.

How to Apply

Candidates should apply on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the primary focus of the Android Software Engineer role?

The role focuses on building production Android applications where AI interactions are core to the product, managing the mobile client experience, and ensuring performance, reliability, and clarity.

How many years of experience are required?

Candidates need 3+ years of Android development experience using Kotlin.

What technical stack is used in the role?

The technical stack includes Kotlin, Java, SQL, noSQL, and TensorFlow Lite for on-device inference.

What is the interview process like?

The process involves 3 to 4 interviews conducted via virtual meetings and/or onsite, evaluated by technical team members.

Where is the position located?

The position is located in Spain.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site