About this role
<p>Join sonnen as a Senior Software Engineer Elixir in Cairo, Egypt! </p> <p>Sonnen is actively seeking <span>an experienced </span><span>Senior Software Engineer</span><span> to join our distributed team in Cairo and contribute to sonnen's global IoT cloud platform. You will work on building scalable, high-performance backend services that manage an extensive network of batteries, EV chargers, and heat pumps worldwide. This is an opportunity to impact the future of sustainable energy through cutting-edge technology and innovative solutions. </span><span> </span></p> <div> <div> <p><span>Key Responsibilities</span><span> </span></p> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Design, develop, and maintain robust, scalable cloud-based services using Elixir/Phoenix</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Lead technical initiatives and mentor junior engineers in functional programming best practices</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Build and optimize distributed systems handling high-load, real-time IoT data processing</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Collaborate with cross-functional teams (architects, product managers, DevOps) on system architecture and implementation</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Implement event-based and REST-full architectures for energy management microservices</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Maintain high code quality through rigorous testing, code reviews, and documentation standards</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Troubleshoot production issues and drive continuous performance optimization</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Contribute to infrastructure-as-code initiatives and CI/CD pipeline improvements</span><span> </span></p> </li> </ul> </div> <div> <p><span>Required Qualifications</span><span> </span></p> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>5+ years</span><span> of professional software engineering experience</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>2+ years</span><span> of hands-on experience building, testing, and maintaining cloud-based services with Elixir/Erlang or similar functional programming languages.</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Deep knowledge of PostgreSQL and relational database optimization</span><span> </span></p> </li> </ul> </div> </div> <div> <div> <ul style="list-style-type:disc"> <li> <p><span>Demonstrated experience with event-based and microservice architectures</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Expertise in CI/CD pipelines and tools (GitHub, GitLab, GitLab CI)</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Excellent grasp of version control systems and Git workflows</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Fluent in English.</span><span> </span></p> </li> </ul> </div> <div> <p><span>Nice-to-Have Qualifications</span><span> </span></p> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Experience with infrastructure monitoring tools (Datadog, Sentry, CloudWatch, Elastic Stack)</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Knowledge of IoT AMQP and Kafka.</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Familiarity with Docker and Kubernetes.</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Leadership or mentoring experience in engineering teams</span><span> </span></p> </li> </ul> </div> <div> <p><span>What We Offer</span><span> </span></p> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Competitive Salary Package:</span><span> Commensurate with experience and market standards</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Hybrid Work:</span><span> Work from our Cairo office and remotely within coordination with team leads across Europe and the US</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Professional Growth:</span><span> Advanced training opportunities and clear career progression within a rapidly expanding company</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Innovative Environment:</span><span> Work on cutting-edge IoT and renewable energy technologies</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Sustainability Impact:</span><span> Contribute directly to the global shift towards renewable energy</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Collaborative Culture:</span><span> Join diverse, talented teams from multiple countries and backgrounds</span><span> </span></p> </li> </ul> </div> <div> <ul style="list-style-type:disc"> <li> <p><span>Benefits:</span><span> Comprehensive benefits package including health insurance, Medical insurance and professional development</span><span> </span></p> </li> </ul> </div> <div> <p><span>Why Join sonnen?</span><span> </span></p> </div> <div> <p><span>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. </span><span> </span></p> </div> </div>