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About the Role

Heidi Systems is seeking an exceptional intern to work closely with the core technical system, focusing on data architecture, DevOps, infrastructure, and backend tooling. This role involves working on production-relevant systems, shaping data infrastructure, and building tools that impact customers, operations, and company scalability.

Responsibilities

• Build and improve data ingestion and processing infrastructure
• Work on backend services in Go and TypeScript
• Support the architecture of reliable data pipelines for meter, gateway, and building data
• Improve internal DevOps workflows, deployments, monitoring, and system reliability
• Work with configuration formats such as YAML and TOML
• Help structure, validate, and transform high-volume device and consumption data
• Build internal tools that make operations faster and more automated
• Support debugging of real-world infrastructure issues across gateways, MQTT, APIs, and databases
• Work closely with the founding team on technical architecture decisions

Requirements

• Unusually strong, curious, and hands-on individual
• Excited about infrastructure, data systems, and clean technical architecture
• Ability to learn extremely fast, think from first principles, and enjoy solving hard technical problems
• Strong coding ability and a clear technical mindset
• Comfortable working independently and taking ownership
• Care about clean systems, reliability, and scalability
• Enjoy working close to real-world infrastructure and messy data
• Curious about DevOps, backend architecture, and data engineering
• Like fast-moving environments with high responsibility
• Desire to build systems that are used in the real world, not just prototypes

Skills

• Go / Golang
• TypeScript
• YAML
• TOML
• MQTT / IoT data streams
• APIs
• Databases
• Data pipelines
• DevOps tooling
• Monitoring
• Deployment infrastructure

Location

• Berlin preferred
• Hybrid setup possible

Work Type

• Internship

Experience Level

• Intern

Benefits

• Work directly with the founding team
• Own real technical projects from day one
• Learn how to build infrastructure for a fast-growing startup
• Get exposure to DevOps, data architecture, IoT, energy, and real estate infrastructure
• Help shape the technical foundation of a company tackling a huge, outdated market
• High ownership, high learning curve, high impact

About the Company

• Heidi Systems is building the data infrastructure layer for buildings and energy.
• We help property owners and managers digitize metering, consumption data, reporting, and billing workflows in one of the largest and most outdated infrastructure markets in Europe.