Job Summary:
Helion is a fusion power company based in Everett, WA, on a mission to build the world's first fusion power plant. The Senior Software Engineer, Data Platform will design, develop, and operate a secure, scalable platform to facilitate data flow across various systems, playing a key role in supporting operational growth and ensuring data quality.
Responsibilities:
• Design and develop large-scale, batch and real-time data pipelines, ELT processes, data warehouses, and data lakes, both on prem and in the cloud
• Scale our data platform to support operational growth from millions of parts per year to millions per day
• Monitor and continuously improve the performance and reliability of data connections and their impact on up-and-downstream systems, using best-in-class observability tools
• Ensure data quality and governance by managing metadata like schemas, lineage, and access control
• Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand data requirements and deliver solutions
• Stay current with emerging data technologies while recommending battle-tested right-fit solutions that align with strategic goals
• Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent data issues from stalling 24/7 production schedules
Qualifications:
Required:
• Bachelor’s degree in computer science or a related field
• 8+ years of software and/or data engineering experience building and operating large-scale, distributed data systems
• Hands-on experience with modern data storage and processing technologies (e.g., Kafka, Postgres, blob storage, Flink, dbt, Iceberg)
• Expertise in Python and SQL; experience with other languages like Java, Scala, or Go
• Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform
• Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)
• Experience with AI/ML, including LLMs and MCP servers
Company:
We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Founded in 2013, the company is headquartered in Everett, USA, with a team of 201-500 employees. The company is currently Growth Stage.