Backend Engineer (m/f/d)
Posted on July 26, 2025 (about 11 hours ago)
Your mission
- Design and implement scalable backend architectures
- Build and maintain RESTful APIs
- Optimize database queries and data structures
- Implement performance optimizations and caching strategies
- Write clean, maintainable, and efficient code
- Develop and integrate third-party APIs and services
- Implement authentication and authorization systems
- Build data processing pipelines and background jobs
- Design and optimize database schemas
- Implement data migration strategies
- Ensure data consistency and integrity
- Monitor and optimize database performance
- Deploy and manage applications in cloud environments
- Implement CI/CD pipelines and automated testing
- Monitor system performance and troubleshoot issues
- Ensure security best practices and compliance
- Work closely with frontend developers, product managers, and designers
- Participate in code reviews and maintain code quality standards
- Write comprehensive technical documentation
Your background
- Bachelor's degree in Computer Science, Software Engineering, or related field
- OR equivalent work experience with strong technical portfolio
- 5+ years of backend development experience
- Experience with testing frameworks (unit, integration, end-to-end)
- Experience with performance testing and optimization
- Programming Languages: TypeScript/JavaScript, Node.js (primary stack)
- Web Frameworks: Express.js, React (for full-stack capabilities)
- Databases: MongoDB (primary), Redis for caching
- Cloud Platforms: AWS, GCP
- Containerization: Docker, Kubernetes (K8s)
- Version Control: Git, GitHub/GitLab
- Understanding of distributed systems concepts
- Knowledge of caching strategies (Redis, Memcached)
- Experience with message queues (RabbitMQ, Apache Kafka)
- Understanding of load balancing and scaling strategies
- Experience designing and implementing RESTful APIs
- Understanding of API security and authentication (JWT, OAuth)
- Experience with API documentation tools (Swagger, Postman)
- Strong problem-solving and analytical abilities
- Excellent debugging and troubleshooting skills
- Good communication and teamwork abilities
- Ability to work in agile development environments
- Experience with event-driven architecture
- Experience with monitoring and logging tools (ELK stack, Prometheus, Grafana)
- Knowledge of machine learning integration and data pipelines
- Familiarity with search engines (Elasticsearch, Solr)
- Mobile Development: React Native, Expo (bonus for cross-platform understanding)
Why us?
- Top Tech company in Digital Health: A dynamic, high-growth environment where everyone in the team depends on each other's performance. You can see your impact. We learn and develop quickly.
- True impact in healthcare: What we are building with our brite platform is unique worldwide, ambitious, and could have a huge impact on billions of people who are ill or interested in health.
- International team: We are 14 nationalities working across Europe. We bring different mentalities and cultures with us, but we are all aligned towards our grand vision.
- 100% remote with best IT equipment: We work 100% remotely, meet regularly for special team events and team offsite weeks, for example in Tuscany, the Alps, or Mallorca. You will receive a Mac computer so that you are already technically up to speed.
Hiring Process
- Initial Screening: Technical phone/video introductory and experience call
- Principles & Values: Cultural fit and technical experience discussion
- Technical Deep Dive: Live coding session covering React, Node.js, and database design
About us
Do you want to work for one of the leading Digital Health Scaleups in Germany and Europe?
XO Life is developing the meta platform brite designed for patients, healthcare representatives and pharmaceutical companies to interact regarding everyday care. Currently, patients mainly consult platforms like Google, Facebook, and Instagram for information search and social exchange due to the lack of a dedicated, highly engaging health platform.
Our mission: Our brite platform is there to enable all pharma companies but also healthcare institutes to offer their patients a state-of-the-art digital product or therapy companion. This all-in-one platform eliminates the need for patients to download a new app for every new drug or treatment, but to have a super health app for self management.
XO Life is recognized as a leading Digital Health Scaleup in Germany and Europe and a top tech newcomer by the German Federal Ministry of Economics and Technology. We work with 30+ pharma manufacturers, spanning from market leaders, SMEs, and RX, OTC, and Medical Device manufacturers across over 30 indications. Building on this success, we are also expanding the platform internationally.
If this sounds exciting to you and you want to be part of this great vision, then apply to join us!