Backend Developer (m/f/d)

Nacosmarine; Drammen; On-site; NOK 900,000 - 1,200,000; Full time

Job summary

NACOS Marine is seeking an experienced Backend Developer (m/f/d) to join our R&D team, building the next generation of marine automation systems. You will design and implement safety-critical backend software for embedded controllers, sensor interfaces, and communication protocols powering vessels worldwide.

Join a multidisciplinary team, delivering scalable, reliable, and secure software across maritime automation platforms, with opportunities to contribute to testing, validation, and

Qualifications

• Bachelor's or Master's degree in a technical field (Software Engineering, CS or Electrical Engineering).
• Minimum 5 years of embedded software development experience in C/C++.
• Experience implementing communication protocol stacks (UART, SPI, I2C, Profinet, TCP/IP, Modbus, OPC-UA, MQTT).
• Strong knowledge of microcontroller architectures, DMA, interrupts and low-level drivers.
• Experience with embedded cybersecurity concepts like secure boot and encrypted comms.
• Fluent in English, strong communication and teamwork skills.

Responsibilities

• Develop embedded backend software in C/C++ for microcontrollers with real-time requirements.
• Design and maintain protocol stacks and transport/session/application layers.
• Optimize performance, timing, latency, and resource use for maritime systems.
• Interface firmware with hardware, drivers, and peripherals.
• Collaborate with software, hardware, QA and systems engineering teams.

Skills

Embedded software development

RTOS/real-time systems

C/C++ programming

Low-level debugging

Problem-solving

Cross-functional collaboration

Education

Bachelor's or Master's in Software Engineering/CS/EE

Tools

UART

SPI

I2C

Profinet

TCP/IP

Modbus

OPC-UA

MQTT

Job description

Company Overview

NACOS Marine delivers advanced navigation, automation, and control systems for vessels worldwide. Our integrated solutions help ship owners and operators improve safety, efficiency, and sustainability at sea. With proven reliability, innovative technology, and dedicated support, we enable smarter maritime operations. Let’s shape the future of maritime technology together.

Role Overview

We are seeking an experienced Backend Developer (m/f/d) to join our R&D team developing the next generation of marine automation systems.
In this role, you will design and develop safety-critical backend software for embedded controllers, communication protocols, and automation platform components that power vessels worldwide. Working as part of a strategic development program, you will collaborate with cross-functional engineering teams to deliver scalable, reliable, and secure software solutions for maritime automation.

Key Responsibilities

• Develop embedded backend software in C/C++ for microcontrollers, focusing on performance, memory efficiency, and real-time operation
• Design, implement, and maintain communication protocol stacks, including both proprietary and industry-standard protocols
• Develop transport, session, and application layer functionality, including state machines, framing, parsing, and error handling
• Optimize software for timing, latency, throughput, and resource utilization
• Integrate firmware with hardware interfaces, peripherals, and low-level drivers
• Ensure compliance with relevant maritime, industrial, and cybersecurity standards
• Produce and maintain technical documentation throughout the software development lifecycle
• Collaborate closely with software, hardware, QA, and system engineering teams to deliver robust platform solutions
• Participate in code reviews, technical discussions, and continuous improvement initiatives
• Contribute to testing, debugging, and validation of embedded software and communication interfaces

Key Requirements

• Bachelor's or Master's degree in Software Engineering, Computer Science, Electrical Engineering, or a related technical field
• Minimum 5 years of experience developing embedded software in C/C++
• Proven experience implementing communication protocol stacks such as UART, SPI, I2C, Profinet, TCP/IP, Modbus, OPC-UA, or MQTT
• Strong understanding of microcontroller architectures, DMA, interrupts, low-level drivers, and embedded hardware interfaces
• Experience with embedded cybersecurity concepts such as secure boot, encrypted communication, and access control
• Familiarity with Git version control and modern CI/CD development practices
• Strong analytical and problem-solving skills with a structured approach to software development
• Excellent communication skills and ability to collaborate across multidisciplinary teams
• Passion for emerging technologies, embedded systems, and AI-assisted software development
• Fluent in English, both written and spoken

Why choose us and why we'd choose you?

At NACOS Marine, you will contribute to the development of advanced automation technology used on vessels around the world. You will work alongside experienced international engineering teams on innovative products that combine embedded software, hardware, and maritime expertise.
We value collaboration, technical excellence, and continuous innovation, and we're looking for someone who enjoys solving complex engineering challenges while contributing to the future of maritime automation.