Senior Full-Stack Developer – AI & Digital Platforms

Jobtailor; Berlin; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Zusammenfassung

Jobtailor in Berlin, Germany, seeks a skilled software engineer to own end-to-end development from idea to live release. You will independently plan, build, and test features while setting coding standards for AI agents and managing hosting infrastructure for velocity.

Required are strong TypeScript, Next.js (15+), PostgreSQL (Drizzle/Prisma) experience, and fluency in English and German. You will work in a fast-paced startup atmosphere with a flat hierarchy and direct reporting to the founder.

Qualifikationen

• Proficient in TypeScript and Next.js, with strong PostgreSQL experience.
• Experience shipping complex software end-to-end in a modern stack.
• Familiar with AI agents and ADR-based decision recording.

Aufgaben

• Take end-to-end ownership from idea to live release.
• Independently plan, build, and test features.
• Establish standards for coding agents (Claude, Cursor).
• Configure MCP servers for developer velocity.
• Ensure 100% test coverage of critical processes with Playwright.
• Define SLOs and manage incident response.
• Design GDPR-compliant, EU-hosted systems.
• Document decisions via ADRs.
• Work in an async-first environment and report to the founder.

Kenntnisse

TypeScript Proficiency

Next.js Experience

PostgreSQL Experience

AI Agent Utilization

GDPR Compliance

Tools

Drizzle

Prisma

MCP Servers

Playwright

Jobbeschreibung

• Take end-to-end ownership, from an initial vague idea through to live release
• Independently plan, build, and test features
• Establish standards for using coding agents such as Claude and Cursor
• Configure MCP servers for maximum developer velocity
• Ensure 100% test coverage of critical processes with Playwright
• Define SLOs and take ownership of incident response
• Design GDPR-compliant, EU-hosted systems
• Document decisions using ADRs
• Work in an async-first environment with a flat hierarchy and report directly to the founder

Requirements

• Fluent in TypeScript
• Experience with Next.js 15+ / React 19+
• Experience with PostgreSQL (Drizzle/Prisma)
• Strong experience shipping complex software end to end
• Ideally, experience in a high-performance or startup environment
• Daily, proficient use of AI agents
• Excellent English (C1+)
• Native-level, business-fluent German
• Link to an AI coding workflow artifact with exactly one sentence of context
• Link to a production system you owned (live URL + GitHub repository) with exactly one sentence of context
• A five-minute, completely unscripted Loom video with your camera on

Core Competencies

Demonstrates expertise in TypeScript, Next.js, and PostgreSQL while ensuring high standards in software development and testing. Capable of managing end-to-end software delivery in a fast-paced, async-first environment with a focus on compliance and incident response.

Highest-signal resume keywords

• TypeScript Proficiency
• Next.js Experience
• PostgreSQL Experience
• AI Agent Utilization
• GDPR Compliance

Hard Skills

• TypeScript
• Next.js
• React
• PostgreSQL
• Playwright
• Software Development
• Incident Response
• SLO Definition
• Coding Standards
• Test Coverage

Soft Skills

• Excellent English Communication
• Business-Fluent German
• Independent Planning
• Documentation Skills
• Async Collaboration

Industry Keywords

• High-Performance Environment
• Startup Experience
• Flat Hierarchy
• ADR Documentation
• Live Release Management

Tools & Technologies

• MCP Servers
• AI Coding Agents
• Drizzle
• Prisma