Senior Software Engineer

HelsinkiCompetitive0 applicants

About this role

Join Polystar | Elisa Industriq: Shape the Future of Telecom

At Polystar, we’re committed to driving sustainability through cutting edge digital solutions. As part of Elisa Oyj, we are now looking for a communicative and proactive software engineer to join our team in Helsinki or Tampere and help us shape the future of the telecom industry.

Responsibilities

  • Innovate & Collaborate
  • Innovate & Optimize: Work on high-volume data, distributed monitoring system, turning product requirements into powerful features.
  • Improve & Evolve: Enhance continuous integration and delivery processes, refining both product and deployment pipelines.
  • Solve Real Challenges: Address intriguing challenges across internal and production systems to help our clients deliver world-class service for their customers.
  • Who You Are
  • We’re looking for more than just technical skills; we want someone who is confident, curious, and comfortable navigating teamwork.
  • Strong Communicator: You enjoy teamwork, openly share ideas, and build positive relationships within and across teams. You're not afraid to ask questions, offer support, and drive conversations.
  • Technically Skilled & Keen to Grow:
  • Kotlin development experience, or a strong Java background and eagerness to learn Kotlin
  • Comfortable working with Kubernetes and containerized applications
  • Curiosity about signaling, protocols, mobile networks, real-time systems, AI/ML, databases, or similar technical topics
  • Enthusiastic about exploring modern technologies and high-performance systems.
  • You take full advantage of AI powered tooling for software development.
  • Our Tech Stack
  • Backend: Kotlin (Java as a strong foundation)
  • Frontend: TypeScript + React (nice to have)
  • CI/CD: GitHub Actions
  • Containerization: Docker, Kubernetes
  • Databases & Search: PostgreSQL, OpenSearch
  • Messaging: Apache Kafka
  • What You Can Expect From Us
  • A Collaborative, Supportive Team: You’ll be part of a team that communicates openly and works well together. We help each other, sha

EU Requirements

Job Details

Posted10 May 2026
Closes9 June 2026

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