Senior Full Stack Engineer

We're looking for a Senior Full Stack Engineer to join our team at brezel.ai in Berlin. You'll be building AI-powered tools that help SMEs make data-driven decisions with enterprise-level intelligence. This is a unique opportunity to work at the intersection of AI and small to medium business empowerment, creating products that democratize access to sophisticated market research.

Your Responsibilities

• Design and build scalable full-stack applications using modern web technologies
• Integrate AI/ML models into production applications
• Work closely with the product team to define and implement new features
• Write clean, maintainable, and well-tested code
• Participate in code reviews and contribute to technical decisions
• Mentor junior engineers and contribute to engineering culture
• Collaborate with cross-functional teams to deliver high-quality products
• Take ownership of features from conception to deployment

What You Bring

• 5+ years of professional software engineering experience
• Experience with cloud platforms (AWS, GCP, or Azure)
• Basic Understanding of AI/ML concepts and experience integrating AI services
• Experience with databases (SQL and NoSQL)
• Proficient in DevOps workflows: designing CI/CD pipelines with GitHub Actions and managing scalable containerized deployments using Docker and Kubernetes.
• Strong problem-solving skills and attention to detail
• Excellent communication skills and ability to work in a collaborative team environment
• Fluent in English (German is a plus but not required)

Nice to Have

• Experience building SaaS products from the ground up
• Background in market research or business intelligence tools
• Experience with vector databases and RAG systems

What We Offer

• Attractive salary package with equity options
• Remote-first culture with flexibility in how and where you work
• Annual learning budget for courses, conferences, and books
• Work with the latest AI technologies and a modern tech stack
• Build products that empower thousands of SMEs worldwide
• Collaborative, inclusive environment with regular team events and annual offsite retreats
• We are based in Berlin, Germany and can help with visa sponsoring.
• Frontend: React, Next.js, TypeScript, Tailwind CSS
• AI/ML: OpenAI, Anthropic Claude, LangChain

The Interview Process

• Initial Chat (30 min): Get to know each other and discuss your background
• Technical Interview (60 min): Pair programming session on a real-world problem
• Team Fit (45 min): Meet the team and discuss collaboration and culture
• Final Round (30 min): Discuss role expectations, compensation, and next steps

We value your time and aim to complete the process within 2 weeks.