Blue Guardrails is the reliability infrastructure for agents. We build a product at the intersection of AI observability, evaluation, and reliability that enables engineering teams to build AI systems that are consistent and dependable. We’re seeing our first commercial successes, we’re well funded but not inflated, and our product is working under high loads. Let’s go to market!
We’re looking for a creative, opinionated, driven doer: you will implement our marketing engine from the ground up, creating and distributing technical content to increase awareness and understanding how that attention generates qualified pipeline. We know where we want to take the company, but our marketing approach is still flexible. We want you to shape it with us, with lots of freedom to test your ideas and close support from the founders.
We’re open to different backgrounds, including GTM generalists, technical product marketers, and people in Developer Relations who want to broaden their marketing scope.
You will be the fifth person on the team, which means you'll have a foundational influence on what we're building and how we're working together.
We’re not interested in hustle culture. We don’t confuse working overtime and artificial urgency with success. We are ambitious and hold ourselves to high standards, and we believe excellent work comes from being focused, thoughtful, and driven. We want to work sustainably, stay healthy, and build this company for the long term.
What you will do
Technical content and distribution will be the core of the role. As an early generalist, you’ll also work across field marketing, ABM, and other forms of demand generation and product marketing.
Technical content
- Produce technical content (blog posts, case studies, LinkedIn posts, tutorials, notebooks, videos, memes, talks) that’s genuinely interesting and useful to our users (technical product managers, subject matter experts, data engineers, AI engineers) and our commercial buyers (CTOs, Heads of AI, …)
- Turn our team’s expertise (AI engineering, AI research, software engineering, customer insights, market insights) into content
- Run the Blue Guardrails’ social presence (LinkedIn, potentially X and Reddit)
Distribution and outbound
- Find the right audiences and channels – who should learn about Blue Guardrails, and what do they need to know? How do we reach them best?
- Actively distribute our content via those channels
- Own and improve our visibility in search engines (SEO and AEO)
- Research relevant accounts, identify the right stakeholders, and run targeted outbound campaigns
- Set up and interpret the tracking necessary to understand how people find Blue Guardrails, which content and campaigns generate qualified interest, and where we should invest more or less effort
Events and public presence
- Find and prepare relevant speaking opportunities for founders and yourself
- Plan and execute webinars, workshops, meetups, trade shows
You’ll explore how to create pipeline and measure what works for us. At our stage, numbers might not always be conclusive, so you’ll need to combine them with customer/partner conversations and a bit of an audacious attitude.
Requirements
We know job requirements often read like fantasy wish-lists where no one could do it all. You don't need everything below. If you’re unsure whether you’re a fit, please apply.
- You’re an excellent writer: you can turn deeply technical concepts into genuinely interesting stories
- You’re excited to join an early-stage startup: You’re independent, you adapt fast, you love working in small, interdisciplinary teams, you thrive in largely undefined circumstances, and you’re ready to take ownership
- You’re genuinely excited by cutting-edge AI and ready to dive deep
We want to hear from you regardless of age, ethnicity, religion, gender, sexual orientation, disability, or socioeconomic status. We’re particularly interested in applications from people underrepresented in tech and AI.
Backgrounds that could fit
- Technical product marketing
- Developer relations or developer advocacy
- Developer marketing
- Technical content marketing
- B2B growth marketing
Helpful experience
- Marketing AI or machine-learning products, developer tools or other technically complex B2B software
- Content distribution
- Targeted outbound
- SEO and AEO
- Events, webinars, workshops, or public speaking
What we offer
- Competitive salary
- Equity participation as part of the compensation package (VSOP)
- Annual professional development budget
- 30 days of PTO
- Hybrid work arrangement: regular presence in our Berlin office (S Friedrichstraße / U Oranienburger Straße) with flexibility for remote work
About us
Blue Guardrails was founded in 2025 by Miriam Kümmel and Mathis Lucka.
We spent years as AI engineers and product leaders building RAG applications, chatbots, and agents for dozens of enterprise customers. They all struggled with the same issue: a lack of systematic visibility into and control over the quality of their AI applications. Does the LLM adhere to the prompt? Are there any hallucinations in the replies of the chatbot? How much of the context passed is being utilized? We set out to close this gap, so teams can stop manually spot-checking their AI applications and start to continuously observe, evaluate, and improve them, pre- and post-deployment.
How to apply
Send your application to join@blueguardrails.com with:
- Your CV (please include your LinkedIn profile)
- A few sentences on why you’re a good fit for the role
- Examples of your relevant work: writing samples, talks you’ve given, tutorials you’ve created, etc
This position requires valid EU work authorization and is based in Berlin. We review applications on a rolling basis.