GlassFlow

Founding Engineer

Berlin, Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

About GlassFlow
GlassFlow builds data infrastructure for AI agents in production, featuring two core products: GlassFlow Tares, which feeds agents correlated data across systems, and GlassFlow Rius, which traces and debugs agent behavior. Operating as a Berlin startup backed by Upfront Ventures, the CEO of GitHub, and the ex-CTO of Aiven, the team comprises serial entrepreneurs with over 10 years of experience.
What you will do
As a Founding Engineer, you will shape the platform's technical foundation in a hybrid role based in Berlin. You will collaborate directly with the founders to build and scale the infrastructure supporting AI agents.
Product Integration for Client Use Cases

Go-to Person for technical questions for the internal sales and marketing team

Building and developing the connector and ingestion layer

Part of the core development team

Creation of product tutorials and guides

What the role requires
This permanent position is offered at 40 hours per week with a 6-month probation period. You will work within a small, fast-paced team environment.
You are:
Fluent in Python

Knowledge of frontend frameworks like TypeScript and React is a plus

Experience with public or private clouds (AWS / GCP / Azure)

Experience with DevOps (Kubernetes, Docker, GitHub Actions)

Worked in fast-growing environments and/or early-stage startups

Willing to work once a week in our Berlin office

Your first months at GlassFlow
You will dive straight into the core architecture, collaborating on initial feature rollouts for GlassFlow Tares and GlassFlow Rius. During your first months, you will establish foundational engineering workflows and contribute directly to the production codebase.
Working environment and perks
You will receive company stock options and flexible working hours to manage your schedule. The role includes public transportation benefits, home office options, and complete home office equipment alongside a company laptop and travel expenses compensation. Additional provisions include 28 vacation days per year, free beverages and snacks, team events, social activities, and a casual dress code.

Competitive salary with Stock Option Grant

Ticket for public transportation in Berlin

Company credit card with a monthly allowance

Newest tech of your choosing

Annual Learning budget for personal development

Generous WFH policy and a budget for home office setup

GlassFlow is an equal opportunity employer that values diversity in the workplace. We encourage applications from all qualified individuals, including those with diverse backgrounds and disabilities.

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Interview prep

Walk in with sharper answers.

Use these suggested prompts to prepare. They are not questions supplied by the employer.

Mid
Technology & IT API integration Javascript Python Sales Mid level full-time

Practice questions

  1. Tell us about work you have done that is close to the Founding Engineer role.
  2. How would you approach your first 30 days at GlassFlow?
  3. Which of API integration, Javascript and Python have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Javascript and Python.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Founding Engineer role at GlassFlow. My relevant experience is [your example], where I [your action] and achieved [your result].

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