• Develop, optimize and maintain high-performance back-end systems using Go (Golang) and .NET. • Design and implement RESTful APIs within distributed architectures and microservices. • Collaborate on defining, evolving, and maintaining cloud architecture, especially on AWS. • Participate in developing efficient user interfaces with Angular and TypeScript in alignment with the back end. • Implement secure, scalable solutions following software engineering best practices. • Provide technical support to the team by promoting code reviews and continuous improvement practices.

• Design, develop, and maintain database schemas, objects, and structures using SQL Server and PostgreSQL. • Write and optimize complex SQL queries, stored procedures, functions, views, and triggers. • Monitor and tune database performance, identifying and resolving bottlenecks. • Ensure data integrity, security, backup, recovery, and high availability of database systems. • Collaborate with application teams to support data access, integrations, and schema changes. • Develop and maintain database documentation and standards. • Implement database monitoring, preventive maintenance, and capacity planning activities. • Participate in agile development processes and support CI/CD-based database deployments.

• You enhance our payment software solutions by integrating payment service providers (PSP) as part of a cross-functional team • You develop the payment domain of our market-leading B2B fitness SaaS platform in close cooperation with product management and the developer team using JVM technologies and frameworks like Spring Boot. • You create high-quality software components in an agile environment and contribute your ideas within flat hierarchies • You develop and enhance resilient, maintainable microservices in an agile and autonomous environment and its integration with our SaaS platform

• Collaborate with engineering leadership, architects, product management, and cross-functional teams to define technical direction and feature priorities. • Design and implement scalable, cloud-native microservices and REST APIs using Python, FastAPI, and Celery. • Build AI-powered applications as well as the platforms and services that enable their development, deployment, and operation. • Integrate and optimize data systems including Postgres, Redis, and Elasticsearch to support high-performance AI and cybersecurity workloads. • Partner effectively with Product Management, DevOps, QA, and fellow developers to deliver solutions that meet both technical excellence and customer needs. • Take end-to-end ownership of major features or projects from design through deployment and monitoring, working with a high degree of autonomy. • Provide technical mentorship and guidance to less-experienced engineers, helping them grow their skills and deliver high-quality code. • Influence architecture and design decisions across multiple services or projects, ensuring scalability, reliability, and alignment with long-term product strategy. • Stay current with advances in Generative AI, cloud technologies, and cybersecurity, and bring forward ideas to keep the platform at the cutting edge. • Work with Kubernetes, CI/CD pipelines, event-driven systems, and large-scale data processing to deliver robust, reliable services.