DevOps & Data Architecture - Intern/Fulltime

Heidi Systems•Technology

BerlinFull-timeOn sitelast week

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About Heidi Systems

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owners and managers digitize metering, consumption data, reporting and billing in one of Europe's largest and most outdated infrastructure markets.

We're hiring a senior engineer to own DevOps and data infrastructure. You'll be responsible for how our systems get built, deployed, monitored and kept running. And you'll make the architecture calls together with the founders.

Tasks

What you'll own

Our deployment pipeline and production environment, end to end (CI/CD, containers, servers)

Monitoring, alerting and incident response, so problems show up before customers notice them

Data ingestion and processing for meter, gateway and building data, including MQTT/IoT streams

Database operations: Postgres setup, clustering, backups, performance

Backend services in Go and TypeScript

Validating and transforming high-volume device and consumption data

Debugging real-world issues across gateways, MQTT, APIs and databases

Internal tooling that automates our operations

Architecture decisions with the founding team, plus the engineering standards the rest of the team builds on

Requirements

Who we're looking for

You've run production infrastructure before and you know what breaks at 2am. You make decisions on your own, explain the trade-offs, and take responsibility for the outcome.

You're a great fit if you:

Have several years of hands-on experience in a DevOps, SRE, platform or backend role with production responsibility

Have built and maintained CI/CD pipelines and containerized deployments yourself

Write strong Go and/or TypeScript

Have run Postgres (or a comparable relational database) in production

Have set up monitoring and logging and handled real incidents

Can design a system from scratch and defend the choices

Bonus: MQTT, IoT or time-series data, bare-metal/VPS setups (we run on Hetzner), experience in energy or real estate.

Tech stack

Go, TypeScript

Postgres

Docker, GitHub Actions, GHCR

Hetzner, Caddy

MQTT / IoT data streams

📌• YAML, TOML

Benefits

Why join us

You own the infrastructure of a product that's live with customers

Direct line to the founders, short decision paths

Your setup becomes the standard: you define how we build and run things

Real hardware, real data: meters, gateways, buildings

A big, outdated market that's only starting to digitize

Location

Living in or relocating to Berlin is required.

Start as soon as possible. Full-time.

How to apply

Send us a short note, your CV and GitHub profile. Plus one system you built or ran in production that you're proud of: what it did, what broke, how you fixed it.