Backend Software Engineer - Go

Join forces with us on our mission to build a better IT industry. We are currently looking for a highly skilled Backend Software Engineer (Go) to our team in Stockholm or Malmö, Sweden.

Please note that applicants must live in Sweden and hold a valid work permit at the time of application to be considered for this role.

Responsibilities:

• Design, develop, and maintain efficient, scalable, secure, and reliable backend services for UniFi OS and/or other applications across UniFi
• Design and implement robust RESTful APIs and services using Golang
• Develop applications and services for embedded platforms, integrating closely with network device firmware, hardware, and other applications
• Architect and document backend software systems with a focus on performance, scalability, security, and maintainability
• Perform network programming and system-level integration across multiple subsystems
• Integrate new features into larger software systems and connected device ecosystems
• Collaborate closely with cloud architects, backend and frontend engineers, UX designers, QA engineers, and other stakeholders to deliver cohesive product experiences
• Participate in code reviews, technical discussions, and knowledge sharing to continuously improve engineering quality and practices
• Take ownership of deliverables and consistently meet project timelines and quality expectations

Requirements:

• 5+ years of professional software development experience using Golang in production environments
• Strong experience with relational databases such as PostgreSQL or MySQL, including database design and application integration
• Experience with NoSQL databases and data storage technologies
• Demonstrated expertise in designing and developing RESTful APIs
• Experience with MQTT and asynchronous or event-driven communication patterns
• Strong experience developing and operating software in Linux environments
• Experience with Docker and containerized applications
• Experience with Git/GitHub and modern software development workflows
• Good understanding of software design principles, including SOLID, maintainable architecture, and clean code practices
• Strong analytical and problem-solving skills with a proactive and adaptable mindset
• Ability to work independently and take ownership of technical decisions, tasks, and responsibilities
• Excellent written and verbal communication skills
• Highly proficient in English, both written and spoken

Nice to have:

• Strong understanding of networking protocols, architectures, and network programming
• Familiarity with the Linux networking stack, routing, firewall management, and packet analysis tools such as tcpdump and Wireshark
• Experience developing or maintaining IoT platforms, connected device ecosystems, or embedded applications
• Knowledge of IoT and real-time communication protocols such as MQTT, CoAP, WebSockets, and WebRTC
• Familiarity with Matter and Thread, including their architecture, security, and implementation considerations
• Understanding of device provisioning, firmware-over-the-air (OTA) updates, and device lifecycle management
• Experience with edge computing, cloud-to-device integration patterns, telemetry collection, real-time data processing, and time-series databases
• Experience with asynchronous programming and event-driven architectures
• Experience with AWS, cloud services, and DevOps practices.
• Experience with SD-WAN, VPN, routing, or related networking technologies.
• Familiarity with Debian/Ubuntu, Linux application and service development, Bash, Unix, and CLI environments.

Benefits

• International work environment
• Competitive compensation package including wellness allowance, occupational pension, medical insurance, private health insurance, life insurance and work-injury insurance
• Five weeks of holiday per year
• Flexible work hours and hybrid work model
• Modern office space located in Epicenter in central Stockholm (Hötorget) 
• Access to all the latest Ubiquiti products and prototypes for home use and tests

Please note that a background check will be conducted in the final stage of the recruitment process