Firmware / Embedded Engineer, Butlr

Contract / Consulting Role

Salary not provided

$100 - $120 USD per hour

AWS

Python

Linux

C++

REST API

Senior and Expert level

Remote from US

AI data platform for anonymous ambient sensing

Open for applications

AI data platform for anonymous ambient sensing

21-100 employees

B2BArtificial IntelligenceInternet of ThingsVisualisationReal EstateSaaSData Analysis

Open for applications

Salary not provided

$100 - $120 USD per hour

AWS

Python

Linux

C++

REST API

Senior and Expert level

Remote from US

21-100 employees

B2BArtificial IntelligenceInternet of ThingsVisualisationReal EstateSaaSData Analysis

Company mission

To enable smarter buildings and an increased quality of life by making spaces people-aware without compromising privacy.

Job

Company

Role

Who you are

Strong C/C++/Python skills in embedded Linux environments
Hands-on experience with Yocto, BSPs, and networking stacks
Familiarity with OTA updates, secure boot, and cloud-IoT integration
5-10+ years related experience

What the job involves

We’re seeking an experienced Firmware/Embedded Engineer to develop, optimize, and maintain embedded Linux–based gateway systems for IoT and edge applications
The role involves end-to-end firmware design, connectivity, security, and integration with cloud services
Build and customize Linux OS images (Yocto or Debian-based)
Integrate kernel modules, device drivers, and BSPs
Optimize boot time, memory, and power usage for embedded devices
Implement and manage Ethernet, Wi-Fi, LTE/4G, and PoE networking
Configure DHCP, DNS, MQTT, HTTP/HTTPS, NAT, and firewall rules
Ensure stable and secure connectivity with automatic recovery (99% uptime target)
Develop C/C++/Python services for data acquisition, buffering, and routing
Integrate edge ML models and cloud middleware (AWS, MQTT, REST APIs)
Manage local storage, caching, and retry logic for intermittent networks
Implement secure boot, signed firmware, and integrity checks
Manage certificates, keys, and access control
Support OTA firmware updates with rollback protection
Design system health telemetry (CPU, memory, connectivity, temperature)
Create watchdogs, auto-recovery scripts, and remote logging/debugging (jFrog, syslog)
Support remote firmware updates and diagnostics
Develop and automate unit/integration tests
Collaborate with QA on test execution and system validation
Bring up and test peripherals (Wi-Fi, LTE, USB, GPIO)
Integrate and test Linux drivers (Qualcomm and custom)
Validate sensor and RF interfaces
Profile CPU, memory, and I/O performance
Tune kernel and network parameters for reliability and throughput
Optimize flash storage and file system usage
Develop clients for MQTT, HTTPS, and WebSockets
Handle device provisioning and cloud connectivity (AWS IoT Core, Azure)
Support remote configuration and edge analytics modules
Work cross-functionally with hardware, QA, and cloud teams
Participate in code/architecture reviews
Document system architecture and deployment guides
Work 40 hours per week
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job
Duties, responsibilities and activities may change at any time with or without notice

Our take

Butlr, an Artificial Intelligence of Things (AIoT) company, leverages a wireless heat sensor and AI which detects human presence and movement to gauge how space is being used.

The tech is targeted predominantly towards enterprise clients who want to better understand how their commercial and office spaces are functioning, as well as for fall detection in senior care. Crucially, Butlr’s sensor does not capture any personally identifiable information – which should help its popularity with employees and occupants.

Though it’s not the only company to make inroads in the workspace and spatial analytics niche, it's encouraging that Butlr has been able to land big clients in the form of Georgia Pacific and Carrier. Having completed major fundraises, Butlr is growing steadily and appears to have a strong future ahead of it.

Freddie

Company Specialist at Welcome to the Jungle

Insights

Top investors

61% employee growth in 12 months

Glassdoor (4.7)

Company

Funding (last 2 of 6 rounds)

Apr 2025

$7m

LATE VC

Aug 2024

$38m

SERIES B

Total funding: $78.4m

Company benefits

Gold Health, Vision, and Dental
Generous PTO & Sick Leave
401K plan
Commuter benefits
Equity incentives
Parental leave
San Francisco & Boston Offices
Remote friendly team

Company HQ

Country Club Manor, Hillsborough, CA

Leadership

Honghao Deng

(CEO & Co-Founder)

Forbes 30 under 30. Former Research Affiliate at MIT Media Lab (from which Butlr emerged). Former Research Scientist at Airbnb.

Share this job