Senior Cloud and Backend Engineer - Zyntai (5G Sync)

About this role

Responsibilities

• We are looking for a Senior Backend Engineer to join our R&D Sync organization, working in a hybrid setup based at our HQ in Solna, Stockholm. You will play a vital role in evolving Zyntai Director, our management system designed to orchestrate thousands of TimeNodes globally. You’ll join a team that owns the full lifecycle of a modern, cloud-native product line — giving you significant influence over technical direction and architectural decisions as we continue to scale.
• Your Impact
• Collaborative Evolution: Take collective responsibility for the system's architecture, ensuring it remains scalable and robust as our customer base grows.
• Develop & Refine: Design and implement high-quality backend services using Node.js and TypeScript.
• Cloud-Native Ownership: Work hands-on with our infrastructure, utilizing Docker, Kubernetes, and AWS to ensure a seamless deployment lifecycle.
• Solve for Scale: Handle complex challenges related to metrics collection, real-time visualization, and alarm handling for large-scale networks.
• Quality & Mentorship: Drive high engineering standards through testing and knowledge sharing in an environment where "engineers can be engineers."
• Customer-Centric Problem Solving: You are happy to engage in technical dialogues with our Support and Customer Success teams – and occasionally directly with customers – to ensure our solution truly meets their needs.
• Our Tech Stack
• To get the job done, we mainly work with:
• Languages: JavaScript, TypeScript, Node.js
• Orchestration: Docker, Kubernetes (K8s) & OpenShift
• Cloud: AWS / Public Cloud
• Data: PostgreSQL, MySQL, or similar relational databases
• The produ