Entirely

Fullstack Developer AI (m/f/d)

The Future of Marketing Starts Here Entirely is the first open Martech ecosystem to enable Tailored Marketing at Scale. Its mission is to build a whole world of marketing technology, powerfully personalized and finely calibrated, at scale. Entirely lays the foundation for hyper-personalized marketing by connecting and orchestrating existing marketing technologies while preserving and enhancing customers’ current Martech investments. Founded by Marmind, Censhare, Elaine, and Facelift, Entirely today serves more than 2,800 clients across twelve countries, with a team of over 400 professionals. It is more than a product or platform. It is a open ecosystem and a catalyst for marketing that matters.

Your Role: Fullstack Developer AI (m/f/d)

As Fullstack Developer AI, you design and implement intelligent applications that integrate machine learning models with robust, scalable web services. You will work across the stack—from building APIs and Agents to creating user interfaces and visualizing data insights.

Location: Zug, CH
Seniority: Senior
Start: As soon as possible

 

What You Bring

  • You have Bachelor's degree or higher in Computer Science, Software Engineering, or a related field
  • You bring 3-5+ years of experience in fullstack or AI application development, including working on real-world AI products or services
  • You have a very good understanding of modern ML frameworks and technologies such as Langchain, Semantic Kernel, PyTorch or similar
  • You have excellent programming skills in either Java, C# or Python and are well acquainted with AI-supported-coding
  • You are proficient in frontend frameworks (e.g. React) and have experience with backend development and APIs
  • You are familiar with the concepts of Agentic Meshes, Agent Orchestration, Vector Databases and Datalakes
  • You have knowledge of containerization (Docker), CI/CD, and cloud services
  • You have strong communication and collaboration skills with an open mindset
  • You have fluent English language skills

What You'll Be Doing

  • You design and implement AI-powered applications end-to-end
  • You build and document scalable, AI-consumable APIs (OpenApi, MCP) and backend services
  • You develop and maintain responsive and appealing frontend components
  • You collaborate with cross-functional teams and data scientists to integrate machine learning models and to turn prototypes into scalable APIs
  • You contribute to architecture discussions and tech stack decisions
  • You optimize performance across the stack
  • You deploy applications using Docker, Kubernetes, or cloud platforms (AWS, GCP, Azure)

Reporting & Collaboration

  • Reports to: CTO
  • Works closely with: R&D, Product Strategy
  • Collaborates across: All founding companies of the Entirely ecosystem

 

What Awaits You at Entirely

A strategic, relationship focused role

at the heart of one of Europe’s most innovative Martech initiatives

The opportunity to shape high-impact executive relationships 

 and define how ecosystem-led transformation is done 

A fast-moving, collaborative environment 

with entrepreneurial freedom and shared purpose 

A collaborative, on-site role in beautiful Zug, CH

with exposure to an international network of marketing and technology experts