SENIOR AI ENGINEER (FULL-STACK)

CHAPTR - Senior AI Engineer (Full-Stack)

Location: Berlin (Remote - Croatia, Germany, France, Lithuania, Netherlands, Poland, Sweden, UK)

About CHAPTR

Founded in 2022, CHAPTR is a tech innovation company backed by the Holtzbrinck Publishing Group, aiming to redefine the future of work. We are a fully remote organization with a mission to build AI solutions that transform work and innovation across the media industry. We are part of the Holtzbrinck Publishing Group, alongside businesses like Springer Nature, Digital Science, and Macmillan Publishers.

Introducing CHAPTR

We believe the future of work means working alongside AI, being in control of the best technology. CHAPTR is a dynamic startup fueled by our passion for technology and redefining the future of work. We build cutting-edge products and push the boundaries of what's possible.

Your Responsibilities

As a Senior AI Engineer (Full-Stack / Applications), you will:

• Design, build, and operate production-grade, cloud-native applications with AI at their core.
• Work across the full lifecycle of AI-powered systems: from evaluating and optimizing models, to integrating them into end-to-end applications, to deploying, monitoring, and iterating on them in production.
• Be flexibly assigned to short-term PoCs, mid-term MVPs, and long-term product development.

Current Tech-Stack: Google Cloud, Firebase, Python, Typescript, Terraform, Github, Cloud Firestore, EventArc, PubSub, GCIP, Cloud Storage, Cloud Functions v2, React, BigQuery, Github Actions, ElasticSearch, commercial AI services, Open Source AI Models.

What You Will Be Doing:

• Own AI-powered features end-to-end, from scoping, design, and requirements engineering to feature evaluation, deployment, and operation.
• Design, build, and maintain cloud-native, event-driven AI applications across the full stack.
• Evaluate, integrate, and optimize AI models for production use (quality, latency, cost).
• Build and maintain robust AI inference, evaluation, and monitoring pipelines.
• Collaborate closely with product, design, and non-technical stakeholders to identify requirements and translate business needs into value-creating technical solutions.
• Operate and improve production systems, taking ownership of reliability, quality, and technical debt.
• Plan, track, and break down work effectively in an agile team.

Your Profile

Required Skills & Knowledge:

• Pragmatic, result-oriented analytical problem-solving skills that can overcome ambiguity.
• Self-organized, purpose-driven individual who enjoys collaborating with and enabling their team.
• Friendly, concise, audience-oriented communication in written and spoken English.
• A T-shaped engineer with strong general software engineering and AI skills, paired with deep expertise in at least one area:
  • Frontend: Advanced experience with React and TS, building high-quality, user-facing apps.
  • Backend: Deep experience designing and operating scalable, event-driven Python systems in cloud-native environments.
  • AI: In-depth knowledge of frontier AI models, evaluation, integration into AI-powered product features, and production best practices.
• Proven experience owning features end-to-end, from technical design to production.
• Strong understanding of how to integrate AI into production systems, including the challenges of non-deterministic behavior.
• Experience building and operating cloud-native systems, ideally on Google Cloud / Firebase with solid DevOps and MLOps fundamentals, including CI/CD, observability, and Infrastructure as Code.

We'd Love to See:

• Experience in the publishing or media industry.
• Experience with our entire TechStack.
• Experience with MLOps on Vertex AI & Weights and Biases.
• Experience applying & implementing SRE methodologies.
• Advanced understanding of ML, LLMs, and trends in the AI market.
• Specialized, deep expertise in a relevant area.

What We Offer

• Competitive salary.
• Work at the forefront of technology with a Rockstar team (Ex-Google, Ex-Amazon).
• Great career development opportunities, including a learning and development budget.
• 100% fully-remote (Croatia, Germany, France, Lithuania, Netherlands, Poland, Sweden, UK).
• Great work-life balance (#familyfirst).

Contact

Karol Lbik www.chaptr.xyz karriere@holtzbrinck.com

Professional Skills: Backend, Bigquery, Cloud Computing, Cloud Storage, Continuous Integration, DevOps, Elasticsearch, Firebase, Frontend, Business Requirements, GitHub, Google Cloud, Engineering Design Processes, Artificial Intelligence, Large Language Models, Machine Learning Operations, Open Source, Product Design, Production Systems, Publishing, Python, ReactJS, Requirements Engineering, Software Development, Technical Debt, Terraform, Typescript.

Personal Skills: Analytical Thinking, Diligent and Committed, Friendliness, Hands-On Mentality, Communication, Solution-Oriented, Problem Analysis, Reliability.

Language Skills: English.

Work Experience: With Work Experience.

Industry: Media / Communication Employer: Verlagsgruppe Georg von Holtzbrinck GmbH & Co. Address: Verlagsgruppe Georg von Holtzbrinck GmbH & Co., Gansheidestr 26, 70184 Stuttgart Web: http://www.chaptr.xyz