Senior Backend Engineer (m/w/d) 100%

About RA Scale AG

RA Scale AG is a pioneering company, born from ETH Zurich, that specializes in creating an innovative AI-powered SaaS platform aimed at automating tenders and supplier selection in the construction industry. Based in Zurich, our team comprises around 20 talented individuals, and we are currently expanding our operations into Germany and Austria.

Key Responsibilities

• Design and implementation of scalable backend services for our AI-powered SaaS platform.
• Development of microservices and APIs using Go, Python, or TypeScript.
• Architecting and operating distributed systems on cloud infrastructure (GCP).
• Optimizing performance, scalability, and system reliability.
• Integration of data sources and development of interfaces for internal AI models.
• Collaborating with front-end and DevOps teams on system design and deployment.
• Ensuring code quality, testing, and comprehensive documentation.
• Contributing to the long-term backend architecture and technical roadmap.

Ideal Candidate Profile

• Several years of professional experience as a backend or software engineer in a cloud environment.
• Proficient in at least one of the following programming languages: Python, C#, or Java.
• Familiar with microservices, event-driven architectures, and API design.
• Skilled in managing databases such as PostgreSQL, DynamoDB, or Redis.
• Knowledgeable about cloud technologies (GCP) and CI/CD pipelines.
• Understanding of system architecture, scaling strategies, and observability.
• Possesses high quality standards, a structured approach to work, and enjoys tackling complex systems.
• Excellent English communication skills; proficiency in German is a plus.

Work Environment and Conditions

This is a permanent full-time position (100%) based in Zurich (Sihlcity). The role offers a modern working environment, characterized by a high degree of personal responsibility and flexible working hours. The start date is negotiable.