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Added 18 mins ago
L
5721 - 3rd Key
Lids
Windsor, ON
- $18 to $18.5 USD / hour
- Part-time
Added 18 mins ago
SO
Spirit of Math Vice Principal - Willowdale
Spirit of Math Schools Inc.
Toronto, ON · North York, ON
- Full-time
The Vice Principal is a proactive campus leader responsible for maintaining high administrative and educational standards. This position fosters a positive and structured learning…
Added 31 mins ago
Program Development Specialist (Official Languages Program Manager) (Bilingual)
Department of Justice and Public Safety
St. John's, NL
…programmes et travailler en étroite collaboration avec le dirigeant principal des finances de la Cour à cet égard. Elle devra préparer des plans de travail, des notes d’information, ainsi…
Added 46 mins ago
CC
Principal Optical Systems Engineer
Celero Communications
Ottawa, ON
- Full-time
We are seeking a Principal Optical Systems Engineer to join our newly established optical system verification team at Celero Inc. The successful candidate will help lead system integration…
Added 47 mins ago
BS
Senior Product Operations Manager
Bentley Systems
Quebec, QC · Canada Quebec QC Office
- Full-time
Gestionnaire principal(e) des opérations de produit
Added 47 mins ago
BS
Senior Software Developer
Bentley Systems
Quebec, QC · Canada Quebec QC Office
- Full-time
Nous recherchons un(e) Développeur(euse) logiciel principal(e) talentueux(se) et expérimenté(e) pour se joindre à notre équipe des applications d’ingénierie civile. Dans ce rôle, vous…
Added 47 mins ago
BS
Senior Software Engineer
Bentley Systems
Quebec, QC · Canada Quebec QC Office
- Full-time
Nous recherchons un(e) Développeur(euse) logiciel principal(e) talentueux(se) et expérimenté(e) pour se joindre à notre équipe des applications d’ingénierie civile. Dans ce rôle, vous…
Added 50 mins ago
FA
Intern, Private Equity (Summer 2027)
Fengate Asset Management
Toronto, ON
- Full-time
…and origination teams within the Private Equity Group. The principal focus of this position will be researching and analyzing a variety of industries and investment opportunities, assisting…
Added 1 hour ago
PT
Head Caretaker (#065-BE)
Pembina Trails School Division
Winnipeg, MB
- Full-time
…of the school, the Head Caretaker accepts direction from the Principal of the school. The Head Caretaker is responsible for the cleaning staff assigned to the…
Added 1 hour ago
PT
Head Caretaker (#064-AN)
Pembina Trails School Division
Winnipeg, MB
- Full-time
…of the school, the Head Caretaker accepts direction from the Principal of the school. The Head Caretaker is responsible for the cleaning staff assigned to the…
Added 1 hour ago
C
Principal Technical Consultant, Google Cloud (GCP)
CWX
Vancouver, BC
- Full-time
As a Principal Technical Consultant specializing in Google Cloud Platform (GCP), you will be a senior technical leader within our Google Cloud consulting practice. Leveraging your deep…
Added 1 hour ago
M
Chercheur(euse) principal(e) - Apprentissage automatique / Senior Researcher - Machine Learning
Microsoft
Montreal, QC
- Full-time
Nous sommes à la recherche d’un(e) chercheur(euse) principal(e) pour se joindre à notre équipe et contribuer à l’avancement de projets clés portant sur le développement d’agents de…
Added 1 hour ago
CA
Intermediate Building Technologist – Commercial Tenant Improvements
Cloudscape Architecture inc
Port Moody, BC
- Full-time
This is a hands-on technical role working directly with our Principal Architect. You should be comfortable reviewing existing drawings and project records, completing assigned work…
Added 1 hour ago
UO
Research Assistant/Technician 1-1
University of British Columbia
Vancouver, BC · UBCV | UBC Hospital - Detwiller Pavilion (DPAV)
- $26.83 to $29.42 CAD / hour
- Full-time
The Research Assistant will report to the Principal Investigator and Research Manager and will be directly supervised by the Study Coordinator. The Research Assistant will work according to…
Added 1 hour ago
UO
Research Assistant/Technician 1-2
University of British Columbia
Vancouver, BC · UBCV | UBC Hospital - Detwiller Pavilion (DPAV)
- $26.83 to $29.42 CAD / hour
- Full-time
The Research Assistant will report to the Principal Investigator and Research Manager and will be directly supervised by the Study Coordinator. The Research Assistant will work according to…
Added 2 hours ago
CC
Assistant Store Manager
Canna Cabana
Ottawa, ON · St. Laurent, Gloucester, ON
- $21 to $23 CAD / hour
- Full-time
Additional points: The job posting reflects the general details considered necessary to describe the principal functions and duties as required for proper evaluation of the job. There may…
Added 2 hours ago
G
Directeur principal, Gestion des produits / Senior Director, Product Management
Genetec
Montreal, QC
- Full-time
Added 2 hours ago
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Associate Lawyer
W3Global
Waterloo, ON
- $100,000 to $150,000 CAD / year
- Full-time
Acting as the principal lawyer on large commercial and corporate mergers and acquisitions, including asset purchases and sales, share purchases and sales, due diligence and closing…
Added 2 hours ago
AG
Quality Assurance & Engineering Process Specialist
Adag Group
Montreal, QC
- Full-time
Certification d’auditeur principal ISO 9001 (Lead Auditor).
Added 2 hours ago
I
Sterling integrator administration Consultant
Infosys
Mississauga, ON
- Full-time
Infosys is seeking a Principal Sterling integrator administration Consultant. As an IBM Sterling Integrator platform administration Lead Consultant, who understands On Prem and Cloud server…
Added 2 hours ago
T
Residential Counsellor - Weekend position
TAMIR
Ottawa, ON
- Part-time
Added 2 hours ago
TG
Principal Automation Engineer (12 Month Contract)
TMX Group
Toronto, ON
- $125 to $145 CAD / hour
- Full-time
As the Principal Automation Engineer, you will serve as the strategic leader for infrastructure automation across TMX Group, driving the transition toward a "Platform Engineering" model…
Added 2 hours ago
B
Principal Architect
BDO
Vancouver, BC · Kitchener, ON · Markham, ON · Oakville, ON · Ottawa, ON · Toronto, ON
- Full-time
The Principal Architect is a highly technical enterprise and solution architecture lead who sets architecture direction and ensures technology designs align with business strategy,…
Added 2 hours ago
B
Managing Director, Partnership Portfolio
BCI
Victoria, BC · CA Victoria
- Full-time
…The role requires strong investment judgment with a focus on principal protection, contractual cash flows and attractive absolute returns. It also carries responsibility for developing…
Added 2 hours ago
B
Principal Architect
BDO
Calgary, AB · AB · Halifax, NS
- Full-time
The Principal Architect is a highly technical enterprise and solution architecture lead who sets architecture direction and ensures technology designs align with business strategy,…

Otto AI

Principal Software Engineer, React Native

Canada

Contract

Apply About employer

Applications open in a new tab.

Job details

Job type: Contract
Posting language: English
Posted: Oct 16, 2026

Original job description

Otto is building a personal AI assistant that runs on a dedicated device and connects to the apps people use every day. Our mobile and desktop apps bring that assistant to users through real-time conversations, connected services, and clear controls over its actions.

We’re looking for a Principal Software Engineer to own the technical direction and hands-on development of our React Native mobile experience.

This is an individual contributor role for someone who combines architectural judgment with strong product instincts. You’ll write production code, solve difficult mobile problems, and help the team ship a polished, reliable app.

What you’ll do

Lead the architecture and development of our React Native and Expo app across iOS and Android.

Build responsive experiences for streaming AI conversations, device onboarding, connected apps, and approvals.

Design reliable approaches to real-time connections, state synchronization, reconnects, and interrupted user journeys.

Work across JavaScript and native platform boundaries, including Bluetooth, authentication, deep links, and push notifications.

Partner closely with design to deliver accessible interfaces with thoughtful interaction details.

Own mobile performance, production debugging, and release quality.

Improve testing, developer tooling, and engineering practices where they meaningfully improve reliability and delivery.

Guide technical decisions and mentor engineers while remaining deeply involved in implementation.

What you’ll bring

Deep experience shipping and maintaining production React Native applications on both iOS and Android.

Experience operating at a principal, staff, lead, or equivalent level, with ownership of significant architectural decisions.

Strong TypeScript and React fundamentals, including rendering behavior, state management, and performance.

Confidence debugging native mobile issues and working with iOS and Android tooling.

A strong understanding of asynchronous systems, networking, and the mobile application lifecycle.

Evidence of owning apps beyond launch: diagnosing failures, improving reliability, and evolving the architecture.

Strong product judgment, attention to interaction quality, and clear communication.

Helpful experience

Expo and Expo Router.

Bluetooth provisioning or connected hardware.

WebSockets, streaming interfaces, and real-time synchronization.

Secure messaging and end-to-end encryption.

Shared mobile and web codebases.

Consumer products and early-stage engineering teams.

Our stack

React Native, Expo, Expo Router, TypeScript, React Query, and tRPC. Our apps communicate through a cloud relay with a Node.js device runtime. An Electron desktop app shares the web experience.

Why Otto

You’ll make foundational decisions across a product that connects mobile, desktop, cloud, and hardware. Your work will directly shape how reliably people can communicate with and use their personal AI assistant.

How to apply

Share your résumé or LinkedIn profile and a mobile product you helped ship. Tell us what you owned and describe a difficult technical decision, its tradeoffs, and the outcome.

Apply About employer

More about this job

Responsibilities

Lead the architecture and hands-on development of Otto’s React Native and Expo apps for iOS and Android, including real-time AI conversations, device onboarding, connected services, and approvals. Own mobile reliability, performance, debugging, and release quality while guiding technical decisions, mentoring engineers, and improving development practices.

Requirements

Requires extensive experience shipping and maintaining production React Native apps on both iOS and Android, with principal-, staff-, lead-, or equivalent-level ownership of architectural decisions. Candidates should have strong TypeScript and React fundamentals, native mobile debugging skills, knowledge of asynchronous systems and app lifecycles, and a track record of improving products after launch.

Skills

React Native
Expo
TypeScript
React
Mobile Architecture
iOS
Android
Mobile Performance
State Management
Real-Time Systems
Networking
Bluetooth
Authentication
Deep Links
Push Notifications
Technical Mentorship

Visa sponsorship

Not detected in the job text

Keywords

React Native
Expo
Expo Router
TypeScript
React
React Query
tRPC
Node.js
Electron
iOS
Android
Bluetooth Provisioning
WebSockets
Streaming Interfaces
Real-Time Synchronization
State Management
Asynchronous Systems
Networking
Mobile Application Lifecycle
Authentication
Deep Links
Push Notifications
Secure Messaging
End-to-End Encryption
Mobile Performance
Production Debugging
Automated Testing
Cloud Relay
Connected Hardware

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