AI Full Stack Engineer (Node.js)

TL;DR

AI Full Stack Engineer (Node.js): Building and iterating on internal tools and products, integrating AI capabilities into systems with an accent on full stack development, AI API orchestration, and cross-functional collaboration. Focus on designing useful AI-powered features, making sense of fragmented data, and translating business needs into technical solutions.

Location: On-site in Berlin, Germany, requiring 5 days a week in the office.

Salary: €60,000–€70,000

Company

hirify.global is a fast-growing startup, aiming to be Germany's second bootstrapped unicorn, that builds the future of marketing by rewarding a community of over 60 million users for engaging with advertisers' products.

What you will do

• Develop and maintain full stack applications (front end, back end, databases).
• Build and maintain back-end services in Node.js.
• Integrate and orchestrate AI APIs into existing and new systems.
• Use prompting and current AI tools to design useful AI-powered features.
• Work across multiple systems and data sources, making sense of fragmented data.
• Collaborate with business teams to understand workflows, identify AI improvements, and translate needs into technical solutions.

Requirements

• Production experience with Node.js.
• Experience integrating and working with AI APIs.
• Strong coding skills and solid engineering fundamentals.
• Full stack capabilities including front end, back end, and databases.
• Good prompting skills and ability to use current AI tools effectively.
• Ability to communicate clearly with non-technical stakeholders.

Nice to have

• Experience with TypeScript.
• Experience with n8n or similar automation/orchestration tools.
• Familiarity with agentic/system-thinking approaches for AI solutions.
• Experience partnering closely with marketing, UA, or other business/ops teams.

Culture & Benefits

• Offer equity in hirify.global to all Berlin-based employees.
• Opportunity to grow alongside a profitable startup.
• Work from a central Berlin office built for collaboration.
• Receive a transport subsidy.
• Enjoy daily breakfasts and lunches.
• Access language learning programs and Urban Sports Club.