Fullstack Developer

September 18, 2026

Hybrid

Middle

Berlin

Important before applying

This job has conditions that may affect your decision to apply

English is required

Description

Berlin-based software startup building a B2B SaaS solution for building services providers, helping them digitalize and streamline their daily operations. The team is looking for a Fullstack Developer to drive the product forward, take ownership and help evolve the architecture. The role covers implementing new features, contributing to technical decisions and improving performance, UX and scalability. Hybrid setup with a modern office in Friedrichshain and up to two home-office days per week.

Responsibilities

Implementing new product features and further developing existing functionality
Working closely with the team to translate requirements into technical solutions
Designing and further developing the system architecture
Taking responsibility for code quality, tests and technical documentation
Optimizing existing features for performance, UX and scalability
Actively participating in technical decisions and long-term product planning
Using modern AI tools to speed up development and improve the code

Requirements

Solid experience in fullstack development with Node.js, React.js and modern JavaScript/TypeScript stacks
Experience with AI developer tools such as Claude Code, GitHub Copilot and Cursor
Good knowledge of software architecture, clean code and testing
Practical experience operating cloud-based web applications, ideally with AWS
Understanding of GraphQL APIs and relational databases (SQL)
High sense of responsibility and the desire to actively shape a product
Analytical thinking, problem-solving skills and a structured way of working
Hands-on mentality, initiative and enjoyment of teamwork
Very good German and English language skills
Residence in Berlin or willingness to work regularly on-site
At least 3 years of experience in web development (required)
German at B2 level (required)
Bachelor's degree (desirable)
Degree in computer science (desirable)

Conditions

Full-time position
Modern office in Friedrichshain, Berlin
Option to work up to 30 days per year from abroad
Possibility of up to 2 days of home office per week
Jobticket for convenient and sustainable mobility
Urban Sports Club membership for an active balance
Company-funded training and professional development
Flexible working hours

Node.jsReact.jsJavaScriptTypeScriptGraphQLSQLb2b saas for building services providersAWSClaude CodeGitHub Copilot

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