Senior Fullstack Developer - AI Native - High Growth Start Up - 100k

Optimus Search

Berlin

Vor Ort

EUR 90.000 - 110.000

Vollzeit

14 Tage+

Erhalte mehr Antworten von Arbeitgebern

Versende in nur wenigen Minuten einen passgenauen Lebenslauf.

Benefits dieser Stelle

Employee participation program (VSOP)

Zusammenfassung

Optimus Search is seeking a Senior Fullstack Developer to join a fast-growing AI-native startup in Berlin. You will design and build scalable frontends with Next.js and React, collaborating with cross-functional teams to deliver intuitive UIs that integrate AI models.

On the backend, you’ll develop Python services using Django or FastAPI, contribute to DevOps with CI/CD and containerization (Docker, Kubernetes), and explore AI tools to boost frontend productivity.

Qualifikationen

  • A degree in computer science or related field, or equivalent experience through personal or professional projects.
  • Professional experience with backend development in Python and frameworks like Django or FastAPI.
  • Familiarity with version control, testing frameworks, and responsive design.
  • Experience working with LLMs or AI agents, or a strong interest in building UIs for AI-powered features.
  • Passion for AI and curiosity about its application in product development.
  • Strong problem-solving skills and an eye for good UX.
  • Fluent in English; German is a bonus.

Aufgaben

  • Design and build scalable, user-friendly frontends using modern frameworks like Next.js and React.
  • Collaborate with cross-functional teams to conceptualize and implement intuitive UIs that seamlessly integrate AI models and tools.
  • Contribute to a smooth user experience by integrating APIs and ensuring frontend performance and responsiveness.
  • Participate in code reviews, refactoring efforts, and implementation of frontend best practices.
  • Develop backends and AI agents using Python (Django/FastAPI) as needed.
  • Contribute to DevOps practices such as CI/CD and containerization, with tools like Docker & Kubernetes.
  • Explore and apply AI tools that enhance frontend workflows and productivity.

Kenntnisse

English proficiency
German bonus

Ausbildung

Bachelor's degree in Computer Science or related field

Tools

Next.js
React
Python
Django
FastAPI
Docker
Kubernetes
APIs
LLMs / AI agents

Jobbeschreibung

Senior Fullstack Developer - AI Native - High Growth Start Up - 100k
Senior Fullstack Developer - AI Native - High Growth Start Up - 100k

Get AI-powered advice on this job and more exclusive features.

Direct message the job poster from Optimus Search

Senior Fullstack Developer - AI Native - High Growth Start Up - 100k

My client are a fast-growing, profitable startup trusted by major clients, including top-tier enterprises and public institutions. They develop tools that span the full AI lifecycle, with a strong presence in the open-source community. Our culture values innovation, inclusivity, and meaningful impact over strict checkboxes. If you're passionate about building great products and want to be part of something transformative, we’d love to hear from you—even if you don't meet every requirement.

What You'll Do

  • Design and build scalable, user-friendly frontends using modern frameworks like Next.js and React.
  • Collaborate with cross-functional teams to conceptualize and implement intuitive UIs that seamlessly integrate AI models and tools.
  • Contribute to a smooth user experience by integrating APIs and ensuring frontend performance and responsiveness.
  • Participate in code reviews, refactoring efforts, and implementation of frontend best practices.
  • Develop backends and AI agents using Python (Django/FastAPI) as needed.
  • Contribute to DevOps practices such as CI/CD and containerization, with tools like Docker & Kubernetes.
  • Explore and apply AI tools that enhance frontend workflows and productivity.

What you bring:

  • A degree in computer science or related field, or equivalent experience through personal or professional projects.
  • Professional experience with backend development in Python and frameworks like Django or FastAPI.
  • Familiarity with version control, testing frameworks, and responsive design.
  • Experience working with LLMs or AI agents, or a strong interest in building UIs for AI-powered features.
  • Passion for AI and curiosity about its application in product development.
  • Strong problem-solving skills and an eye for good UX.
  • Fluent in English; German is a bonus.

Why Join Us?

  • Work directly with an experienced and passionate team shaping the future of AI-powered products.
  • Influence product direction and technical decisions from day one.
  • Attractive salary package with an employee participation program (VSOP).
  • Fast access to cutting-edge AI tools to enhance your work.
  • A supportive, diverse, and impact-driven team that values creativity and experimentation.
Seniority level
  • Seniority level
    Mid-Senior level
Employment type
  • Employment type
    Full-time
Job function
  • Job function
    Information Technology
  • Industries
    IT Services and IT Consulting and Software Development

Referrals increase your chances of interviewing at Optimus Search by 2x

Sign in to set job alerts for “Full Stack Engineer” roles.
Junior Full-Stack Software Developer (MSSP Platform)
Software Engineer (all genders) in Berlin
Software Engineer - New Grad (2025 Start)
Full Stack Engineer - AI Software Start-up
Full-Stack Software Engineer (m/f/d) Berlin, Germany

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

Hol dir deinen kostenlosen, vertraulichen Lebenslauf-Check.
oder ziehe deine Datei hierhin.
Similar jobs

Ähnliche Jobs, die dir auch gefallen könnten

Junior Fullstack Developer - .NET/Angular (m/f/d)
Junior Fullstack Developer - .NET/Angular (m/f/d)

Optimus Search • Bremen

Hybrid
EUR 45.000 - 60.000
30 days of vacation
Flexible working hours
Hybrid work model
+4
Full-Stack Web Developer (m/f/d)
Full-Stack Web Developer (m/f/d)

Optimus Search • Düsseldorf

Vor Ort
EUR 60.000 - 80.000
Competitive compensation
Flexible working arrangements
Generous vacation policies
+3
Senior Frontend Developer
Senior Frontend Developer

European Tech Recruit • Berlin

Vor Ort
EUR 70.000 - 90.000
Founding Full-stack Engineer
Founding Full-stack Engineer

Niky AI • Berlin

Remote
EUR 45.000 - 60.000
Meaningful equity (0.5–5%)
Flexible hours
Full ownership
+1
Senior Fullstack Developer - .NET & Angular 19 (m/f/d)
Senior Fullstack Developer - .NET & Angular 19 (m/f/d)

Optimus Search • Köln

Vor Ort
EUR 65.000 - 85.000
Senior Fullstack Engineer (m/w/d)
Senior Fullstack Engineer (m/w/d)

PLACED • Berlin

Hybrid
EUR 65.000 - 85.000
Competitive package (salary + VSOP)
Urban Sports Club membership
Flexible remote work
+1
Backend Software Developer - C# .NET 8/9 (m/f/d)
Backend Software Developer - C# .NET 8/9 (m/f/d)

Optimus Search • Köln

Hybrid
Ongoing training and certifications
Modern tools and equipment provided
Regular team events and activities
+1
Lead/Principal AI Solutions Engineer - 100% Remote (m/f/d)
Lead/Principal AI Solutions Engineer - 100% Remote (m/f/d)

Optimus Search • Deutschland

Remote
EUR 85.000 - 129.000
Product Engineer (Full-stack)
Product Engineer (Full-stack)

Langdock • Berlin

Vor Ort
EUR 60.000 - 80.000
Full-Stack-Developer (m/f/d)
Full-Stack-Developer (m/f/d)

JustRelate • Deutschland

Remote
EUR 85.000 - 146.000
Remote work options
AWS cloud trainings and certifications
Language courses during working hours
+3