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OSI Engineering, Inc.

Android Software Engineer

OSI Engineering, Inc., Mountain View, California, us, 94039

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Overview

We are looking for an

experienced Android Engineer

to build on-device demos and proof-of-concept applications supporting AI research. The ideal candidate has

3+ years of Android development experience

with strong proficiency in Kotlin, Java, Jetpack Compose, and Android SDK, along with a solid grasp of

Android app architecture (MVI/MVVM) . They should bring expertise in

UI/UX design , integrating with

REST APIs and system data sources , and have experience with

on-device execution of LLMs . Familiarity with

NDK/JNI ,

vector databases , and

profiling performance (UI, memory, threading)

is highly valuable. Candidates with published apps, GitHub contributions, and proven ability to

rapidly prototype and collaborate with researchers and designers

will be best suited for this role.

Interview Notes Prior to submitting, please ensure your candidates are available to interview onsite in Mountain View within the next 2 weeks. Interviews are being planned for the week of 9/22. Interviews will take place on site in Mountain View, CA.

Job Description A leading global device company is seeking an experienced

Android Engineer

to support AI researchers in developing on-device demos and proof-of-concept applications. In this role you’ll rapidly prototype mobile apps, integrate advanced technologies like vector databases, and build polished, UI-driven demos to showcase cutting-edge research. If you have 3+ years of recent Android development experience (Kotlin/Java), strong UI/UX skills, and the ability to collaborate closely with researchers and designers in a fast-paced, innovation-focused environment, apply now and help shape the future of mobile AI experiences!

Job Responsibilities

Develop and prototype directly on Android devices – writing performant, well-structured code that showcase value of on-going research to internal and external audiences

Hands-on testing and rapid iteration of scope of the demos.

Integrate advanced backend technologies – including connecting the demo apps to Vector DB updates.

Build mobile UI components and flows – designing intuitive, modern interfaces for demos

Create proof of concept apps, aligned with best UX practices.

Collaborate with product and design teams.

Deliverables

Working prototypes integrated into the existing and demo apps

Codebase demonstrating on-device integration of various components and front-end UI interactions with system data sources (eg. SMS, Email, Finder, Keyboard etc.)

Documentation and walkthroughs for delivered POCs and demos

Skills and Experience

3+ years of software development experience, 2+ years Android development experience, including working knowledge of Kotlin

Proficiency in Java, Jetpack Compose, and Android SDK.

Experience with Android app architecture.

Familiarity with Native Development Kit (NDK)/ Java Native Interface (JNI)

Working knowledge of Android 14-15 SDK for API calls and cross-app integrations

Prior experience of integrating LLMs for on-device execution

Developing and maintaining the unified UX for multiple projects/features.

Passion for building scalable and responsive customer-facing applications

Experience with Git

Solid experience interacting with REST APIs

Solid understanding of architecture patterns, namely MVI and MVVM

Experience with profiling UI, memory, and threading in Android

Ability to effectively translate Product, UX, UI, and analytics requirements into code implementations

Ability to accomplish complex engineering tasks independently

Previously published application(s) to Google Play Store

Experience with unit testing

Github project(s) or contributions to open-source communities

Continuous build experience in an Agile Environment.

Optional Skills

Experience with on-device vector databases (ObjectBox, Faiss, etc.)

Understanding of ANN algorithms (HNSW, IVF, etc.).

Education

BS in Computer Science, Computer Engineering or similar degree. MS preferred.

Details

Type:

Contract

Duration:

6 months (with a possibility to extend)

Work Location:

Mountain View, CA (Hybrid)

Pay range:

$46.00 – $61.00 per hour (DOE)

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