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Clera

Full Stack Developer (AI SaaS)

Cologne

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hirly's read of this role

Role family
Engineering
Seniority
Mid level
Country
DE
Work mode
On-site / unstated
First seen by hirly
25 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

About the Role

Join a growing AI SaaS team building chat and voice agents that help customers navigate complex product ranges online and in stores. You'll contribute to the development of customer-facing AI products and their supporting services.

What You'll Do

Build and maintain application services using NestJS and TypeScript.

Work with MongoDB to support product functionality and data needs.

Integrate current large language model APIs into AI-powered features.

What We're Looking For

Several years of professional NestJS experience, typically within a 3 to 10+ year engineering background.

Very strong TypeScript skills and solid MongoDB experience.

Hands-on experience with current LLM APIs.

Native or C2-level German proficiency.

Compensation & Benefits

Visa sponsorship is not available.

Location

Remote across Europe, or hybrid from Cologne or Hamburg, Germany. The primary location is Cologne, North Rhine-Westphalia, Germany.

Original posting on Clera's site ↗

Listed on hirly, a job board. hirly is not the employer: Clera is hiring for this role.

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