---
title: 'Senior Mobile Engineer - Kotlin Multiplatform at webAI'
canonical: 'https://feeny.ai/job/senior-mobile-engineer-kotlin-multiplatform-webai-austin-ewgjd6k4xd8h'
type: 'job'
last_seen: '2026-09-09'
---

# Senior Mobile Engineer - Kotlin Multiplatform at webAI

- **Company:** webAI
- **Location:** Austin, TX
- **Employment:** full-time
- **Posted:** 2026-07-28
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/webai/7767950a-bc0a-4948-8939-a0835d986027

## Job description

About the Role:

We're building a flagship cross-platform application on Kotlin Multiplatform (KMP) using Compose Multiplatform as well as SwiftUI. The ideal candidate will have a proven track record of developing and deploying native mobile apps using KMP technology.

Responsibilities:

- Shared KMP modules — You will write shared Kotlin Multiplatform code that provides significant, testable business logic and repositories.
- Compose Multiplatform UI and Native SwiftUI — You will write user interface code to utilize shared code modules.
- On-device AI — You will integrate artificial intelligence frameworks both on-device and remotely.
- Performance — Profile and harden app performance on real devices. Troubleshoot hard, technical bugs.
- Code review and collaboration — Review human and coding-agent diffs with equal rigor, contribute to project conventions, and mentor teammates. Improve the quality of delivered code.

Qualifications:

- 4+ years of mobile development with shipped production apps on Android, iOS, or both
- Strong Kotlin skills including coroutines and Flows.
- Demonstrated interest in AI engineering
- Solid experience with mobile tooling and app stores
- Strong mobile product instincts

Preferred Skills:

- Compose Multiplatform or strong Jetpack Compose experience, including understanding recomposition stability
- SwiftUI experience would be beneficial, including comfort working at the Swift/Kotlin boundary via SKIE, Swift Export, and/or hand-written interoperability code
- Experience working with Rust UniFFI, C++, and JS is a plus
- Contributions to open-source ML/AI or KMP libraries is a bonus

We at webAI are committed to living out the core values we have put in place as the foundation on which we operate as a team. We seek individuals who exemplify the following:

- Truth - Emphasizing transparency and honesty in every interaction and decision.
- Ownership - Taking full responsibility for one’s actions and decisions, demonstrating commitment to the success of our clients.
- Tenacity - Persisting in the face of challenges and setbacks, continually striving for excellence and improvement.
- Humility - Maintaining a respectful and learning-oriented mindset, acknowledging the strengths and contributions of others.

Benefits:

We strive to provide competitive benefits to all employees. The benefits listed in this posting generally apply to U.S.-based employees. For employees hired outside the United States, benefits may vary based on local law, country-specific requirements, and the employment platform or entity through which the employee is hired.

- Competitive salary
- Comprehensive health, dental, and vision benefits package
- 401(k) match
- Equity options
- $200/month Health & Wellness stipend
- Continuing Education support
- $500/year Function Health subscription
- Free parking for in-office employees
- Flexible Time Off (FTO)
- Parental leave for eligible employees
- Supplemental life insurance

webAI is an Equal Opportunity Employer and does not discriminate against any employee or applicant on the basis of age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. We adhere to these principles in all aspects of employment, including recruitment, hiring, training, compensation, promotion, benefits, social and recreational programs, and discipline. In addition, it is the policy of webAI to provide reasonable accommodation to qualified employees who have protected disabilities to the extent required by applicable laws, regulations and ordinances where a particular employee works.

## About webAI

## Company Overview
- **One-liner**: webAI provides an end-to-end platform for building, deploying, and operating custom AI on local infrastructure, ensuring data sovereignty and low latency.
- **Entity Type**: Private (Series A‑II, $60M total raised)
- **Headquarters**: Austin, Texas, United States
- **Founded**: 2019 (source: webai.com) / 2020 (source: CB Insights)
- **Founders**: David Stout (CEO), Ethan Baird (Chief Research Officer), Tyler Mauer (Chief Product Officer)

## Core Business
- Primary industry/industries: Enterprise AI infrastructure, sovereign AI, edge computing
- Target customers: B2B – large enterprises and public‑sector organizations in healthcare, manufacturing, financial services, aviation, retail, and defense
- Mission or purpose statement: “AI should be specialized, sovereign, efficient, and sustainable. It should solve real problems, not just burn more compute.” (source: [webai.com/about](https://www.webai.com/about))

## Products & Services
- **Navigator**: Build, train, and deploy custom AI models on local infrastructure with full transparency and control. (source: [webai.com](https://www.webai.com))
- **Companion**: An on‑device assistant that connects employees to private AI, tailored to industry workflows (e.g., aviation, manufacturing). (source: [webai.com](https://www.webai.com))
- **Runtime**: Orchestrates distributed AI workloads across heterogeneous hardware, scaling from a single device to entire clusters. (source: [webai.com](https://www.webai.com))
- **webFrame**: Delivers optimized inference and training with adaptive quantization (“Entropy‑Weighted Quantization”) achieving near 99.5% accuracy. (source: [webai.com](https://www.webai.com))
- **Network**: Connects every model, dataset, and device through a secure, local fabric for high‑speed collaboration without the cloud. (source: [webai.com](https://www.webai.com))
- **CLI**: Full command‑line control for developers to build, extend, and manage AI environments at scale. (source: [webai.com](https://www.webai.com))

## Competitive Advantages
- **Data sovereignty**: Full ownership of AI models and data; models run on local infrastructure, not in the cloud.
- **Low latency & resilience**: Edge deployments enable real‑time inference without cloud dependency; works offline.
- **Proprietary optimization**: Entropy‑Weighted Quantization compresses models while maintaining ~99.5% accuracy.
- **Full‑stack platform**: Covers development (Navigator), deployment (Runtime/CLI), inference (webFrame), and collaboration (Network).

## Strategic Focus
- Current priorities: Scaling custom, sovereign AI into regulated industries (healthcare, finance, defense); building the “operating system of the future” for edge intelligence; achieving 2030 vision of billions of specialized models embedded in everyday systems. (source: [webai.com/about](https://www.webai.com/about))
- Growth direction: Public sector partnerships (President of Public Sector Dr. Jason Rathje); vertical solutions for aviation, manufacturing, and retail.

## Why Work Here
- **Culture**: Core beliefs include ownership, truth, tenacity, humility, and the conviction that AI must be local and accessible.
- **Work model**: Flexible work environment with a strong bias toward work‑life balance; “Unlimited PTO.”
- **Perks** (source: [webai.com/careers](https://www.webai.com/careers)):
  - Comprehensive health coverage for body and mind
  - Parental leave and fertility support
  - 401(k) with company contribution
  - Learning stipend for professional development
  - Equity options
- **Engineering culture**: Developer‑first (CLI, Runtime) with focus on solving complex distributed‑systems and ML challenges; autonomy to shape the platform.

## Sources
1. [webai.com](https://www.webai.com)
2. [webai.com/about](https://www.webai.com/about)
3. [webai.com/careers](https://www.webai.com/careers)
4. [CB Insights](https://www.cbinsights.com/company/webai)
5. [LinkedIn](https://www.linkedin.com/company/webai-official)

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