Backend Developer

TERNA Systems AB; Sweden; Remote; SEK 700,000 - 900,000; Full time

Job summary

TERNA Systems AB is seeking a Backend Engineer to design and maintain cloud infrastructure for a fleet of connected excavators. You will develop APIs for real-time telemetry, manage device provisioning and firmware updates, and build systems that synchronize 3D terrain models to field operatives.

The role emphasizes scalable services handling data from thousands of machines, secure device authentication, and tools for fleet management.

Qualifications

• Proven backend development experience with modern languages and frameworks.
• Experience building real‑time data streams and reliable field deployments.
• Knowledge of SQL/NoSQL databases and scalable services.

Responsibilities

• Build and maintain cloud infrastructure powering connected excavators.
• Develop APIs for real-time machine telemetry and device provisioning.
• Implement secure device authentication and firmware update workflows.
• Collaborate with embedded and mobile teams to integrate sensors, gateways and cloud services.

Skills

Backend development

Node.js

Python

Go

SQL/NoSQL

MQTT

WebSockets

Tools

MQTT

WebSockets

Job description

You'll build and maintain the cloud infrastructure that powers our connected excavator fleet. This includes developing APIs for real-time machine telemetry, managing device provisioning and firmware updates, and building systems that sync 3D terrain models to excavators operating in the field.

You'll work on scalable services that handle data from thousands of connected machines, implement secure device authentication, and create tools that help construction companies manage their excavator fleets. Collaboration with embedded and mobile teams ensures seamless integration between our sensors, gateways, and cloud services.

WHO YOU ARE

You have strong backend development experience with Node.js, Python, Go, or similar technologies, and proficiency with SQL/NoSQL databases. You understand the unique challenges of connected device backends—device management, real-time data streams, and ensuring reliability for field-deployed equipment.

You have experience with cloud services (AWS, GCP, Azure), containerization, and CI/CD pipelines. Knowledge of MQTT, WebSockets, or real-time communication protocols is valuable. Interest in construction technology, heavy machinery, or how software connects to the physical world is a plus.