Deenex AI
Semi-Senior Fullstack Developer
Deenex AIGermany5 hours ago
OtherEngineering, Information Technology

🚀 Build the Future of AI-Driven Marketing — From the Ground Up


We’re Deenex AI, a fast-moving startup rethinking how businesses run digital marketing. Our vision: to give small and mid-sized companies the same AI-powered tools used by the world’s biggest brands — without the complexity or the cost.


Our product is an intelligent, chat-based platform that helps users design, launch, and optimize marketing campaigns across WhatsApp, Email, and beyond — guided by an AI copilot.

We’ve already validated our MVP, have real clients lined up, and a clear roadmap to scale. Now, we're looking for a semi-senior Full Stack Engineer who wants to build something meaningful, own big decisions, and grow into a key role as we launch and scale.


💡 Compensation Note: We believe in rewarding impact and shared success. While we operate on a milestone-based equity model, it's a chance to grow with us and share in the value you help create. We’ve got a quick video that explains everything in detail so you’ll know exactly what to expect. MORE ABOUT THIS IN THE PRESENTATION BELOW


🎯 The Role


You’ll take the lead on building out our core product features — from backend services to frontend interactions — and help us go from MVP to full commercial launch.

You’ll work directly with the founding team and be trusted with both execution and input into technical strategy.


⚙️ What You’ll Be Doing


  • Build and scale key product features (backend & frontend)
  • Integrate APIs (OpenAI, WhatsApp, email providers)
  • Design secure, performant backend systems (Node.js, AWS)
  • Contribute to AI automation logic (Python)
  • Help shape our dev processes: CI/CD, testing, monitoring
  • Collaborate on feature prioritization and roadmap planning


🛠️ Tech Stack


Frontend: React, TypeScript, TailwindCSS, Vite or Next.js

Backend: Node.js (Express/NestJS), Python, PostgreSQL/MongoDB

Infra: AWS (Lambda, EC2, RDS, S3), GitHub Actions, CloudWatch, Sentry

Integrations: OpenAI API, WhatsApp Business API, SendGrid/SES


📚 Growth & Learning


  • Exposure to AI, SaaS, and real-world marketing use cases
  • Opportunities to grow into a Lead or Founding Engineer role
  • Access to mentorship and technical guidance
  • Participate in business strategy and product vision sessions


🔗 Learn more & book a call:

  • https://docs.google.com/presentation/d/1apdscJLmitPacltQEeE78vjECrZrU-3QEKieKuqWzFk/edit?usp=sharing


🪜 Selection Process


We aim to keep the process transparent, dynamic, and human. We want to understand both your technical depth and your vision, ensuring a true fit across skills, culture, and purpose.

Here’s what to expect if your profile matches what we’re looking for:


1️⃣ Intro Call with Co-Founder

Get to know each other! We'll discuss your background, tech stack, and goals to assess fit for a core product role.


2️⃣ Product Deep Dive

We'll walk through the project and hear how you'd approach it, both technically and strategically.

3️⃣ Technical Interview with CTO

We'll explore your problem-solving skills, system design thinking, and how you'd contribute to our tech stack.


4️⃣ Final Decision & Feedback

We share mutual feedback, answer any final questions, and outline next steps transparently.


5️⃣ Onboarding

Welcome aboard! We’ll align on the roadmap, goals, and give you full access to our tools and team.

Key Skills

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