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Added 57 mins ago
TH
BUSINESS ANALYST (6 month contract)
The Home Depot
Canada
- Full-time
Collects and prepares information and reports using analytics, industry/competitive research and trends. Consolidates information into cohesive and understandable correspondence or other…
Added 57 mins ago
C
Software Engineer - Crowdsourcing Platform
Calder
Toronto, ON
- Full-time
Added 57 mins ago
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Software Engineer - Mobile Crowdsourcing Platform
Calder
Toronto, ON
- Full-time
Added 57 mins ago
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Program Manager, Brand Experience
Klick
Toronto, ON
- $120,000 to $130,000 CAD / year
- Full-time
…communications, market access, real-world evidence, and technology and analytics consulting - powered by 500+ in-house medical experts and award-winning data science and AI capabilities.…
Added 57 mins ago
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Data Solutions Engineer
Dexterra
Mississauga, ON
- $80,000 to $100,000 CAD / year
- Full-time
Structure, validate, and reconcile data to support reporting, analytics, operational decisions, and reliable downstream processes.
Added 57 mins ago
KC
Manager / Senior Manager, Restructuring & Turnaround
KPMG Canada
Montreal, QC
- Full-time
An experience in corporate development, financial modelling and business analytics experience will be considered as an asset
Added 57 mins ago
NS
Software Development Agile Business Analyst
NHS Scotland
Mackenzie, BC
- Full-time
Added 57 mins ago
GA
Building Systems Engineer
GDI Ainsworth
Mississauga, ON
- $90,000 to $110,000 CAD / year
- Full-time
The Building Systems Engineer optimizes HVAC and mechanical building systems through data analytics to improve performance, sustainability, and energy efficiency.
Added 57 mins ago
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Senior Actuarial Analyst
AGA Benefit Solutions
Montreal, QC
- $35.67 to $44.6 CAD / hour
- Full-time
Added 57 mins ago
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Back End Developer
Lemon.io
Canada
- Full-time
Added 57 mins ago
EI
Human Resources Director
EastGen Inc.
Guelph, ON
- Full-time
Use data to inform business decisions through HR Analytics and KPI Dashboard
Added 57 mins ago
QI
Demand Marketing Program Manager
Quality IT Resourcing
Canada
- Contract
Added 57 mins ago
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Marketing Coordinator
Global Technical Talent, an Inc. 5000 Company
Toronto, ON
- $37 to $45 CAD / hour
- Contract
Added 57 mins ago
AI
Demand Marketing Program Manager
Avanciers Inc.
Toronto, ON
- $80,000 to $80,001 CAD / year
- Contract
Added 57 mins ago
GT
Senior BI Developer / Data Analyst - DAX and Power Query
Global Technical Talent, an Inc. 5000 Company
Toronto, ON
- $85 to $100 CAD / hour
- Contract
The Senior BI Developer will design and develop complex static and paginated reports using Power BI Report Builder, along with interactive Power BI dashboards. This individual will support…
Added 57 mins ago
AP
Senior Director, People & Culture
Assiniboine Park Conservancy
Winnipeg, MB
- Full-time
Added 57 mins ago
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Information Technology Security Specialist
TekStaff IT Solutions
Toronto, ON · Greater Toronto Area, Canada
- Contract
Added 57 mins ago
VB
Spec, Procurement
Vale Base Metals
Toronto, ON
- Full-time
Added 57 mins ago
OC
Financial Reporting Analyst
Options Consulting Solutions
Toronto, ON
- $85,000 to $95,000 CAD / year
- Full-time
Added 57 mins ago
A3
Human Resources Manager
Aluminum 3104
Belleville, ON
- Full-time
Added 57 mins ago
PS
Data Analyst
Paladin Security Group Ltd
Burnaby, BC
- $70,000 to $90,000 CAD / year
- Full-time
3+ years of hands-on experience in data analytics, business intelligence, or a similar role.
Added 57 mins ago
IG
Java and Python Full Stack Developer
IMCS Group
Quebec, QC
- Contract
Job Title: Java and Python Full Stack Developer
Added 57 mins ago
W
Senior AI Engineer - Oncology Biometrics
WATAR-AI
Canada
- Full-time
External: AI and technology vendors and external service providers; open-source and developer communities
Added 57 mins ago
NV
Microsoft Foundry Architect (ID#5606)
New Value Solutions
Vancouver, BC · Greater Vancouver, BC
- Contract
Added 1 hour ago
SB
Sales Analyst
Sleeman Breweries Ltd.
Calgary, AB
- Full-time

Calder

Software Engineer - Mobile Crowdsourcing Platform

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 5, 2026

Original job description

About us:

Calder is solving the data bottleneck for embodied AI and world models. Today's AI models lack the real-world, 4D data needed to reason on spatial problems and operate in physical environments. We capture, process, and deliver high-fidelity human-generated spatial data at scale, providing the substrate that trains the next generation of generalizable models for manipulation, navigation, and interaction.

About the role:

The Crowdsourcing Platform team connects people worldwide with opportunities to collect and contribute data for Physical AI. We build the contributor experience and infrastructure that turn individual contributions into high-quality datasets for AI developers. Physical AI is the largest economic opportunity since the industrial revolution and we aim to provide anyone, anywhere a way to earn by helping autonomous vehicles, manufacturing robots, and humanoids learn to operate in the real world.

You'll build the native mobile apps that help contributors collect data, and get paid, and the connection between those apps and our data collection hardware. The app is built in React Native with substantial native layers in Swift and Kotlin, and most of the hard problems live in the native layer. Your work sits where phones, devices, firmware, and the cloud meet, and it directly affects both contributors' efficiency and earnings and the data available to train autonomous systems.

Build and ship native iOS and Android apps covering discovery, onboarding, task instructions, data capture, submission, feedback, and payment.
Integrate mobile apps with data collection hardware over BLE, Wi-Fi, and USB, including device pairing, provisioning, configuration, and status monitoring.
Design reliable data transfer pipelines that move large volumes of sensor, video, and media data from devices to phones to the cloud, with chunking, resumable uploads, retries, compression, and integrity checks.
Work with firmware engineers to define communication protocols, message formats, and device APIs, and support over-the-air (OTA) firmware updates through the app.
Build offline-first experiences that hold up on low-end devices, poor connectivity, and limited battery and storage.
Build on-device quality checks that give contributors real-time feedback and give AI teams confidence in the data they receive.
Improve app reliability, performance, and observability as the platform grows across geographies, devices, and collection methods.
Work closely with contributors, operations, hardware, and AI teams to understand problems, make technical decisions, and ship improvements.

About you:

Several years building and shipping mobile apps that people depend on in production, with real depth in both Swift (iOS) and Kotlin (Android).
Comfort working across a React Native / TypeScript app and its native modules. You'll cross the JS-to-native bridge daily.
Hands-on experience integrating mobile apps with embedded devices or firmware, such as BLE peripherals, IoT devices, cameras, or sensors.
Strong understanding of communication and data transfer systems: wireless protocols, binary serialization, flow control, error handling, and recovering from partial or failed transfers.
Strong engineering fundamentals and the ability to design, debug, and operate reliable systems, including debugging across the app, device, and network boundary.
Care for the people using your software, including those with different devices, connectivity, languages, and technical experience.
Ability to turn ambiguous problems into practical solutions and own them from design through production.
Good judgment about when to move fast and when correctness, quality, or reliability needs deeper investment.

Experience that would be especially useful:

Writing or reading embedded firmware (C/C++, RTOS, or embedded Linux).
Building OTA update systems or device fleet management tools.
Handling large media or sensor uploads from mobile at scale, including background transfers and platform constraints on iOS and Android.
Working with camera, GPS, IMU, or other sensor data on mobile or embedded devices.
Cross-platform or shared-code approaches (Kotlin Multiplatform, Rust, C++ shared libraries) where they make sense.
Building marketplaces, contributor platforms, or products for large and diverse user groups.
Tools for data collection, mapping, robotics, or autonomous systems.

Calder is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. Learn more here.

By applying for this position, you consent to the collection, storage, and processing of your personal data by Calder for recruitment purposes. We will handle your information securely and in accordance with local privacy policies. Your data may be shared with authorized third-party service providers aiding in the hiring process.

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More about this job

Responsibilities

You will build and maintain native mobile applications that facilitate data collection for Physical AI, integrating them with hardware via BLE, Wi-Fi, and USB. You will also design reliable data pipelines to move large volumes of sensor and media data from devices to the cloud while ensuring offline-first functionality.

Requirements

The role requires several years of experience shipping production mobile apps with deep proficiency in both Swift and Kotlin. Candidates must have hands-on experience integrating mobile apps with embedded devices and a strong understanding of communication protocols and data transfer systems.

Skills

Swift
Kotlin
React Native
TypeScript
BLE
Firmware integration
Mobile app development
Data transfer systems
Embedded devices
IoT
Sensor data
Binary serialization
Debugging
System architecture
Performance optimization

Benefits

Equity

Visa sponsorship

Not detected in the job text

Keywords

Software Engineer
Mobile Development
Swift
Kotlin
React Native
TypeScript
Physical AI
Embedded Systems
BLE
IoT
Firmware
Data Pipelines
Sensor Data
Binary Serialization
Offline-first
Android
iOS
API
OTA Updates
Performance Optimization
Observability
Autonomous Systems
Robotics
Mapping
Data Collection

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