Assembly & Production Assistant (m/f/d) – Minijob

About the company

HyperHeat is building electric high-temperature heating systems to replace fossil burners in the most demanding industrial processes, transforming an industry responsible for roughly 20% of global CO₂ emissions. We are at a point where it is about making hard technology work in real plants, under real economic constraints.

HyperHeat electrifies industrial heat. We build high temperature electric heating systems that enable steel, cement, chemicals, glass, ceramics, and other energy intensive industries to replace fossil burners with a solution that is competitive, scalable, and reliable in real operations.

Industrial process heat is one of the largest remaining sources of global CO2 emissions. Solving it requires more than good intentions. It requires technology that performs at high temperatures, integrates into existing plants, and wins on economics.

Our products cover a temperature range up to 2000°C and are designed for continuous industrial use. We work with industrial partners on deployments, validate performance under real constraints, and translate that learning into scalable products.

We are building HyperHeat to become the number one supplier of high temperature industrial heating solutions by 2030, deploying more than one gigawatt per year, powered by a proud, talented team.

If you want your work to sit where deep tech meets real world deployment and where analysis directly shapes decisions, you will feel at home here.

Your tasks

What you’ll be doing

• Assemble wires and prepare small parts by hand.
• Do accurate, high-quality work on daily tasks.
• Keep the workshop clean and tidy.
• Label storage locations, containers and materials.
• Sort incoming material and consumables.
• Note improvement ideas (handling aids, fixtures, layouts) and discuss them with the team.
• Support updates of work instructions with photos and short descriptions.

Requirements

Must-have

• Good spoken German and/or English.
• Good manual skills and attention to detail.
• Organized, dependable, and detail-oriented.
• Sense for order and cleanliness
• Ability to work onsite in Offenburg, Germany.
• Flexible availability for ~4-8 hours per week.

Even better if you have

• Past experience with cables, basic electronics, or craft work.
• Basic knowledge of 5S or lean methods.

What we offer

Working at HyperHeatWhat's in It for You & Working at HyperHeat

• Direct Climate Impact: The opportunity to support hands-on hardware development solving one of the hardest industrial decarbonization problems of this decade.
• High Flexibility: High flexibility in how you schedule your ~4-8 weekly working hours to fit around your studies or personal commitments.
• Great Team Culture: A friendly, supportive workshop environment with high trust, low politics, and direct collaboration with our engineering team.
• Perks & Safety: Onsite workshop setup with all necessary tools and safety gear provided, plus team activities and annual Christmas dinner.
• We speak English at HyperHeat to collaborate smoothly across backgrounds

How to apply

Hiring Process Our hiring process is designed to be fast, structured, and close to real work.

• Intro call

15–20 minutes to align on motivation, practical fit, and weekly schedule availability.

• Workshop Visit

30–45 minutes onsite in Offenburg to view the workshop, try sample wire assembly, and meet the team.

• Decision

We move quickly and communicate clearly at every step.

Other

We are looking for an Assembly & Production Assistant (m/f/d) to join our team in Offenburg. This flexible seasonal role is focused on practical craftsmanship and hands-on manufacturing support, specifically wire assembly and component preparation.

Note: We currently do not offer visa sponsorships or relocation support. You must already have the legal right to work in the EU in order to apply.