Software Engineer Elixir (m/f/d)

Key Responsibilities

• Design, develop, and maintain robust, scalable cloud-based services using Elixir/Phoenix
• Lead technical initiatives and mentor junior engineers in functional programming best practices
• Build and optimize distributed systems handling high-load, real-time IoT data processing
• Collaborate with cross-functional teams (architects, product managers, DevOps) on system architecture and implementation
• Implement event-based and REST-full architectures for energy management microservices
• Maintain high code quality through rigorous testing, code reviews, and documentation standards
• Troubleshoot production issues and drive continuous performance optimization
• Contribute to infrastructure-as-code initiatives and CI/CD pipeline improvements

Required Qualifications

• 5 years of professional software engineering experience
• 2 years of hands-on experience building, testing, and maintaining cloud-based services with Elixir/Erlang or similar functional programming languages.
• Deep knowledge of PostgreSQL and relational database optimization
• Demonstrated experience with event-based and microservice architectures
• Expertise in CI/CD pipelines and tools (GitHub, GitLab, GitLab CI)
• Excellent grasp of version control systems and Git workflows
• Fluent in English.

Nice-to-Have Qualifications

• Experience with infrastructure monitoring tools (Datadog, Sentry, CloudWatch, Elastic Stack)
• Knowledge of IoT AMQP and Kafka.
• Familiarity with Docker and Kubernetes.
• Leadership or mentoring experience in engineering teams

What We Offer

• Competitive Salary Package: Commensurate with experience and market standards
• Hybrid Work: Work from our Cairo office and remotely within coordination with team leads across Europe and the US
• Professional Growth: Advanced training opportunities and clear career progression within a rapidly expanding company
• Innovative Environment: Work on cutting-edge IoT and renewable energy technologies
• Sustainability Impact: Contribute directly to the global shift towards renewable energy
• Collaborative Culture: Join diverse, talented teams from multiple countries and backgrounds
• Benefits: Comprehensive benefits package including health insurance, Medical insurance and professional development

Why Join sonnen?

sonnen is at the forefront of the energy transition, solving one of humanity's greatest challenges. As a Senior Engineer, you'll have the opportunity to architect solutions that impact millions globally, work with a talented international team, and be part of a mission-driven company that values innovation, collaboration, and sustainability.