Embedded Software Engineer (Remote)

Fuse Energy

Washington (District of Columbia)

On-site

USD 120,000 - 180,000

Full time

14 days+

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Benefits offered by this job

Equity sign-on bonus

Biannual bonus

Tech stipend

Job summary

Fuse Energy in the US designs and scales a connected energy network powering distributed devices. We seek an Embedded Software Engineer to own connectivity, security, and fleet telemetry from prototype to deployment.

You will work with firmware, hardware, and backend teams to build secure, production‑ready systems and deliver resilient device communications across a growing fleet.

Qualifications

Bachelor’s degree in Electrical or Computer Engineering or equivalent.
4+ years building connected embedded products.
Proficient in C/C++ for embedded systems with RTOS like Zephyr or FreeRTOS.
Experience with Python for testing, tooling, or automation.
Strong networking and device security knowledge (TLS, provisioning).
Familiar with firmware update systems and CI/CD for embedded.

Responsibilities

Develop and maintain connectivity across Ethernet, Wi‑Fi, Thread, Zigbee, and BLE.
Build and optimise secure device messaging using MQTT, CoAP, HTTP or WebSockets.
Support secure provisioning and OTA update mechanisms.
Define telemetry, health monitoring and observability for deployed devices.
Collaborate with firmware, hardware, and software teams for production devices.

Skills

C/C++ (embedded)

RTOS experience

Python for testing

Networking fundamentals

Debugging skills

Security basics

Education

Bachelor’s degree in Electrical/Computer Engineering

Tools

Zephyr RTOS

FreeRTOS

CI/CD for embedded

Logic analyzers

Job description

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $210M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.

We’re creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.

But we’re not stopping there. We’re also building the Energy Network: a decentralised platform of smart devices to electrify our homes, shifting usage to off-peak hours and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.

We’re looking for an Embedded Software Engineer in the US to help design, build, and scale the connected hardware powering the Energy Network. This is a hands-on role spanning embedded systems, networking, device security, and fleet connectivity from prototype through to deployment. You’ll contribute to building resilient connectivity, secure provisioning, and robust telemetry across a growing fleet of distributed energy devices.

You’ll play an important role in shaping how our devices connect, communicate, and evolve securely at scale, working closely with firmware, hardware, and backend teams to deliver production-ready systems.

Responsibilities

Connectivity & Networking

Develop and maintain connectivity across Ethernet, Wi-Fi, Thread, Zigbee, and BLE.

Build and optimise secure, reliable device messaging using protocols such as MQTT, CoAP, HTTP, or WebSockets.

Support reliable device time synchronisation using NTP or PTP.

Device Security & OTA Management

Contribute to secure boot flows, key and certificate provisioning, and hardware-backed device identity using TPMs or secure elements.

Help build and maintain signed firmware update pipelines, including OTA update and rollback mechanisms.

Support security best practices across the device lifecycle, including vulnerability management and secure provisioning.

Edge & Cloud Integration

Integrate devices with cloud IoT platforms and backend services.

Define and improve telemetry, health monitoring, and observability for deployed devices.

Support reliable operation of connected devices in the field, including debugging fleet issues and improving resilience.

Compliance & Testing

Support testing and validation for safety, EMC, radio, and related product requirements.

Help prepare test plans, certification artefacts, and validation documentation.

Work with manufacturing and cross-functional teams through engineering and production validation cycles.

Cross-Functional Collaboration

Work closely with firmware, hardware, power electronics, mechanical, and software teams to deliver production-ready devices.

Contribute to design reviews, technical documentation, and interface specifications.

Share knowledge and contribute to engineering best practices across connectivity, embedded systems, and device security.

Requirements

Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.

4+ years of experience building connected embedded products, or strong relevant industry/project experience.

Good proficiency in C/C++ for embedded systems, with experience working with RTOS environments such as Zephyr or FreeRTOS.

Experience with Python for testing, tooling, or automation.

Solid understanding of device connectivity and networking fundamentals, including IP networking and common transport/application protocols.

Experience implementing or supporting secure device communications using TLS, certificates, or device provisioning workflows.

Familiarity with firmware update systems, bootloaders, or CI/CD workflows for embedded software.

Practical debugging experience using lab and software tools such as logic analysers, protocol analysers, network sniffers, or observability platforms.