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Added 1 day ago
A3
Plant Engineering & Maintenance Manager
Aluminum 3104
Belleville, ON
- Full-time
…business, we get to do things differently. We have no legacy systems and no inherited bureaucracy. What we become will come from the people we…
Added 1 day ago
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Structural Co-op (Winter 2027)
HDR
Vancouver, BC
- Full-time
- Temporary
We believe building engineering is more than systems and structures, it’s about powering progress and enabling innovation. As part of HDR’s Building Engineering Services Group, you’ll help…
Added 1 day ago
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Transmission Line Engineer
HDR
Saskatoon, SK · Vancouver, BC · Calgary, AB
- Full-time
…grow. From massive data centers to modernizing transmission systems, our industry-recognized engineers and scientists have been at the forefront of grid transformation for more than a…
Added 1 day ago
MF
Business Systems Analyst
Mackenzie Financial Corporation
Toronto, ON · Greater Toronto Area, ON
- Other
Bachelor’s degree in business, information systems, computer science, engineering, risk management, or a related field.
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Human Resources Business Partner
Napoleon
Barrie, ON
- Full-time
Napoleon leads the way with innovative engineering, advanced manufacturing techniques, unsurpassed customer service and remarkable product quality. Our award-winning products offer a…
Added 1 day ago
AI
Junior Project Manager - Mechanical Services
Ainsworth Inc
Mississauga, ON
- Full-time
Maintain accurate project records and document control systems.
Added 1 day ago
AG
Senior Mine Engineer
Alamos Gold Inc.
Lynn Lake, MB
- Full-time
Are you passionate about mine engineering, strategic planning, and operational optimization? Do you thrive in a collaborative, fast-paced mining environment where your technical expertise…
Added 1 day ago
RS
Collections Clerk II
Rockwood Service Corporation
Sherwood Park, AB
- Temporary
At TIC Solutions, we do work that matters. As a leading provider of critical asset integrity and engineering solutions, we help keep essential industries operating safely, reliably, and…
Added 1 day ago
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Software Engineer - Crowdsourcing Platform
Calder
Toronto, ON
- Full-time
Drive the design and implementation of our core crowdsourcing platform and systems
Added 1 day ago
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Software Engineer - Mobile Crowdsourcing Platform
Calder
Toronto, ON
- Full-time
Strong engineering fundamentals and the ability to design, debug, and operate reliable systems, including debugging across the app, device, and network boundary.
Added 1 day ago
PR
Maintenance Assistant
PARC Retirement Living
BC · North Vancouver, BC
- Part-time
PARC Retirement Living is an award-winning developer and operator of independent senior-living communities. We’re seeking a Maintenance Assistant to join our Cedar Springs PARC community in…
Added 1 day ago
Co-op/Intern, Software Development - Winter 2027
Hootsuite
Toronto, ON · Vancouver, BC
You'll work on a tight-knit team of passionate operations developers to build and maintain the systems infrastructure, servers and networks that power our mission-critical social media…
Added 1 day ago
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Principal Engineer Physical AI Systems Modeling
Renesas Electronics
Ottawa, ON
- Full-time
· Strong background in mathematics, physics, and software engineering, with the ability to apply rigorous modeling, analysis, and engineering methods to complex robotic systems.
Added 1 day ago
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Staff Engineer Physical AI Systems
Renesas Electronics
Ottawa, ON
- Full-time
We are seeking a Staff Engineer (Physical AI - System Engineering) to join the Pathfinding Studio within the Engineering Innovation Office. In this role, you will develop and validate…
Added 1 day ago
AI
Collections Clerk II
Acuren Inspection, Inc.
Sherwood Park, AB
- Temporary
At TIC Solutions, we do work that matters. As a leading provider of critical asset integrity and engineering solutions, we help keep essential industries operating safely, reliably, and…
Added 1 day ago
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Data Solutions Engineer
Dexterra
Mississauga, ON
- $80,000 to $100,000 CAD / year
- Full-time
Post-secondary education in information systems, computer science, data analytics, or a related field, or equivalent practical experience.
Added 1 day ago
A
Geotechnical and Materials Testing Technician
AtkinsRéalis
Saguenay, QC
- Full-time
We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together,…
Added 1 day ago
A
Quality Coordinator
AtkinsRéalis
Toronto, ON
- Full-time
We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together,…
Added 1 day ago
A
Manager, Computers and Digital Systems, Engineering Excellence
AtkinsRéalis
Mississauga, ON
- Full-time
We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together,…
Added 1 day 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.
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Back End Developer
Lemon.io
Canada
- Full-time
Significant ownership of production systems or platforms.
Added 1 day ago
CC
Industrial Automation Specialist
Club Coffee
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Own the health, monitoring, support, and documentation of integration layers across SCADA, MES, Historian, SAP, CMMS, quality systems, and printing systems.
Added 1 day 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 1 day ago
SI
UI/UX Designer
Spait Infotech
Canada
- Full-time
Create and maintain reusable design systems, components, and style guides.
Added 1 day ago
A
Software Engineer
Applicantz
Toronto, ON
- $50 to $55 CAD / hour
- Contract
As a global leader in 3D design, engineering, and entertainment software, we help people imagine, design, and make a better world. We accelerate better design through an unparalleled depth…

Calder

Software Engineer - Mobile Crowdsourcing Platform

Toronto, ON, Canada

Full-time

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Applications open in a new tab.

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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