**Location:** Zürich, Zürich, Switzerland (Remote)
**Posted:** September 14, 2026
**Salary:** EUR 120–180 (period not specified)
### About Scalera
Scalera is an ETH Zurich spin-off building AI-powered procurement software for the European construction industry. Its platform automates supplier selection, tender management, and bid evaluation, serving 110+ customers across Switzerland, Austria, and Germany.
### Role
As a Senior Backend Engineer (Python), you will build and maintain backend services and APIs powering Scalera’s AI-driven procurement platform. You’ll work closely with the CTO and VP Engineering on AI production workflows, complex datasets, integrations, and platform reliability.
### Responsibilities
* Own backend problems end-to-end, from understanding user needs to delivering solutions.
* Build and maintain Python backend services supporting AI capabilities such as document parsing, supplier matching, and bid scoring.
* Design and implement RESTful APIs and integrations with frontend applications and external platforms.
* Develop data pipelines to ingest, normalize, and process structured and unstructured construction data.
* Participate in code reviews, testing, and CI/CD practices.
* Explore and contribute ideas for applying new AI techniques to procurement challenges.
* Work effectively in ambiguous environments by scoping, prioritizing, and delivering solutions.
### Required Qualifications
* 4+ years of backend engineering experience.
* Python as a primary programming language.
* Strong API design and RESTful systems experience.
* Production experience with FastAPI or Django.
* Solid knowledge of databases, data modeling, and query optimization.
* Experience with CI/CD and strong focus on code quality and maintainability.
* Interest in AI/ML systems and their behavior in production.
* Strong communication and teamwork skills.
* Ability to work independently and make progress without perfect clarity.
### Preferred Qualifications
* Experience with GCP, including Cloud Run, BigQuery, Pub/Sub, or similar services.
* Experience with data-heavy or AI-integrated product architectures.
* Familiarity with AI developer tools such as Cursor, Claude, or Copilot.
* B2B SaaS, construction technology, or procurement domain experience.
* German language skills.
### Work Arrangement & Benefits
* Zürich headquarters.
* Four days in-office with Fridays remote.
* Small, collaborative team with minimal bureaucracy.
* Direct collaboration with decision-makers.
* Competitive salary and equity.
### Employment Details
* Employment type: Not specified.
* Working hours: Not specified.
* Salary period: Not specified.
**Apply Now**