AI Full Stack Engineer (Node.js)

TL;DR

AI Fullstack Engineer (Node.js): Building and iterating on internal tools and products, integrating AI capabilities into existing systems with an accent on strong engineering and collaborating with business stakeholders. Focus on designing useful AI-powered features, working across multiple systems and data sources, and translating business needs into technical solutions.

Location: On-site in Berlin, Germany

Salary: €60,000–€70,000

Company

hirify.global is building the future of marketing by rewarding a community of over 60 million users for engaging with advertisers' products, aiming to become Germany’s second bootstrapped unicorn.

What you will do

• Develop and maintain fullstack applications (frontend, backend, databases).
• Build and maintain backend services using Node.js.
• Integrate and orchestrate AI APIs into existing and new systems.
• Design useful AI-powered features using prompting and current AI tools.
• Work across multiple systems and data sources to make sense of fragmented data.
• Collaborate with business teams to identify where AI can improve workflows 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.
• Fullstack capabilities covering frontend, backend, and databases.
• Good prompting skills and ability to effectively use current AI tools.
• Ability to communicate clearly with non-technical stakeholders.
• Curiosity, initiative, and a strong learning mindset, especially around AI.

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

• Equity in hirify.global for all Berlin-based employees to participate in company success.
• Opportunity to grow alongside a profitable startup.
• Work from a fully-stocked modern central Berlin office designed for collaboration.
• Benefits include transport subsidy, breakfasts and lunches, language learning, and Urban Sports Club membership.
• Commitment to fostering talent and providing a clear path for growth.