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About the Role

As an Integrations Engineer (Multi-Platform), you will develop application software for two hardware platforms, ensuring seamless integration with cloud software from the field level up to the cloud. Your work will enhance product quality and reduce field failures.

Responsibilities

Design and develop system services for hardware platforms.
Coordinate and implement interfaces to cloud components.
Run prototype tests and support field tests.
Build and maintain CI/CD pipelines for cross-compilation across both platforms.
Ensure firmware quality before device rollout.
Create and maintain product and test documentation.
Collaborate closely with firmware, cloud, and hardware teams.

Requirements

Experience developing embedded software for Linux-based systems, ideally across several target architectures (e.g., ARM and MIPS).
Familiarity with cross-compilation toolchains and different build systems (e.g., Yocto/BitBake and OpenWRT-based environments).
Knowledge of designing software for resource-constrained systems (memory, flash, performance).
Proficiency in C/C++ and/or other embedded systems languages.
Experience with network protocols and services in an embedded context (e.g., VPN, MQTT, systemd/NetworkManager).
Hands-on and practical experience with hardware.
Ability to test and validate software carefully before rollout to a large device fleet.
Aptitude for finding and solving problems at the interfaces between components.
Analytical approach to systematically find and clearly document errors.
Ability to set up workflows independently and continuously improve systems.
Strong communication skills and enjoyment of working with different teams and external partners.
Fluent English speaking and writing skills.
German language skills are a plus.

Skills

Embedded software development
Linux
ARM
MIPS
Cross-compilation
Yocto/BitBake
OpenWRT
Resource-constrained systems design
C/C++
Embedded systems programming
Network protocols
VPN
MQTT
systemd/NetworkManager
Hardware interaction
Software testing
Problem-solving
Analytical thinking
Workflow automation
System improvement
Communication
Teamwork
Teltonika RutOS
Fleet management
Deployment infrastructure
Certificate management
OTA updates

Location

Berlin

Work Type

Hybrid
Remote
Work from home
Worldwide (up to 40 days/year)

Experience Level

5+ years of experience in embedded systems, hardware-level development or testing

Education Level

Degree in embedded software, electronics, computer engineering or a related field

Benefits

Urban Sports Club or Become1 vouchers
Work flexibility
Home office
Personal learning budget
On-the-job challenges
Open feedback culture
Direct impact through work
Regular team events

About the Company

Green Fusion helps the housing industry make the heating and energy transition more sustainable by providing intelligent automation and optimization for a building's energy ecosystem, reducing CO₂ emissions.
The company's product serves as the interface between hardware and software, making maximum sustainability economically viable.
Green Fusion aims to transform the building sector and establish efficient, climate-neutral energy as the standard, starting in the DACH region and expanding across Europe.
The company offers a motivated, open-minded, and vibrant team passionate about shaping the energy transition and growing together.

Equal Opportunity

Green Fusion welcomes applications from everyone, regardless of gender, nationality, ethnic and social background, religion or belief, disability, age, sexual orientation or identity.
The company encourages applications even if not all criteria are met, recognizing that no one perfectly matches a job description.