Junior Fullstack Engineer – Rapid Prototyping, AI

Jobtailor; Berlin; Vor Ort; EUR 60.000 - 90.000; Vollzeit

Zusammenfassung

Jobtailor in Berlin seeks a versatile Fullstack Developer to build SaaS pilots and MVPs from scratch using Next.js, Node.js, and Supabase. You will integrate AI features and leverage LangChain and OpenAI APIs to deliver practical SME solutions.

You’ll work in an Agile environment with a Testing Architect and Team Lead, iterating rapidly based on pilot data and feedback while shipping clean, pragmatic code.

Qualifikationen

• Experience in web development with practical projects.
• Strong knowledge of JavaScript/TypeScript and modern frameworks.
• Backend experience with Node.js and REST APIs.
• Familiar with databases like Supabase or Firebase.
• Interest in AI and LangChain/OpenAI APIs.
• Fluent German and good English.

Aufgaben

• Build SaaS pilots and MVPs from scratch (frontend, backend, APIs).
• Integrate AI models for SMEs.
• Leverage AI tools to maximize workflow and productivity.
• Collaborate in Agile with Testing Architect & Team Lead.

Kenntnisse

Fullstack development

JavaScript/TypeScript

React/Next.js

Svelte

Vue

Node.js

REST APIs

AI interest

Maker mindset

German language

English proficiency

Tools

LangChain

OpenAI API

Copilot

Cursor

Cline

Jobbeschreibung

Responsibilities

• Fullstack Development: Build web-based SaaS pilots and MVPs from scratch (frontend, backend, APIs) using a modern stack (Next.js, Node.js, Supabase).
• AI Integration: Integrate modern AI models (LLM-APIs, HuggingFace, LangChain) into our products and make them usable for SMEs.
• AI-Assisted Coding: Use state-of-the-art tools (e.g., Copilot, Cursor, Cline) to maximize your own workflow.
• Agile Iteration: Work closely with our Testing Architect & Team Lead. Based on feedback and pilot data, rapidly adjust architecture and features.

Qualifications

• Experience in web development: You have already gained practical experience in fullstack development through past jobs, intense side projects, student employment, or hackathons.
• Tech Stack: You have strong knowledge of JavaScript/TypeScript and modern frameworks (React/Next.js, optionally Svelte/Vue).
• Backend Basics: Comfortable with backend (Node.js, REST APIs) and experienced with modern database solutions (Supabase, Firebase, etc.).
• AI Interest: Passionate about current AI developments and eager to work with tools such as LangChain or the OpenAI API.
• Maker Mindset: Write clean code, but your pragmatism wins. You hack, experiment, and learn instead of waiting for 100% perfect architecture.
• Languages: Fluent German and good English.