Applications Software Engineer

At Sunlight Group, we are shaping the future of energy storage for industrial and advanced technology applications, driven by a strong passion for performance and continuous improvement. Guided by our vision of transforming energy storage solutions to power a sustainable tomorrow, we operate with a deep sense of environmental responsibility and a culture rooted in openness and respect. By leveraging data and insights, we deliver innovative, customer-focused solutions that support our mission of driving an all-electric future through high-quality, cutting-edge technologies. Embracing an entrepreneurial spirit, we foster an agile and collaborative environment where our people are empowered to grow, contribute, and reach their full potential.

We are looking for an Applications Software Engineer to join our R&D Smart Energy Systems team. If you are seeking for a role where your software shapes real-world energy systems and drives the clean energy transition, this is the place to make an impact. Work at the intersection of clean energy, and real-time, cloud-native software as part of a multi-disciplinary R&D team. You’ll get a front-row seat in the clean energy revolution and be a critical member of a team passionate about building intelligent, sustainable infrastructure. 

Key activities and responsibilities of the role include:

• Design, develop, test, and deploy high-quality software services and applications
• Build and maintain real-time/near-real-time message-driven components (publishing/subscribing, event handling, state synchronization)
• Collaborate with cross-functional engineers to define application requirements, new features, and enhancements
• Contribute to software architecture and reliability patterns (retries/backoff, fault handling, duplicate prevention/idempotency, graceful degradation)
• Write clean, well-documented, maintainable code; participate in code reviews and continuous improvement
• Identify and troubleshoot software defects and operational issues promptly
• Conduct thorough testing (unit/integration) to ensure correctness, reliability and performance
• Create and maintain documentation (technical specs, architecture notes, and operational guides)

• BSc/MSc in Electrical Engineering, Computer Science, Software Engineering, or a related field
• Up to 3 years of relevant experience as a software engineer (or equivalent personal/academic projects)
• Deep understanding of developing and deploying deep learning models, particularly for time-series or control-oriented tasks
• Strong Python fundamentals and good software engineering practices (clean code, debugging, testing)
• Cloud fundamentals (Azure/AWS/GCP): deployments, monitoring, secrets/config management
• Familiarity with event-driven / message-based systems or strong interest in learning them
• Basic understanding of software architecture and design patterns; eagerness to learn system design and reliability practices
• Experience consuming or building REST APIs and integrating with external systems
• Familiarity with version control workflows (Git)
• Containers and orchestration (Docker; Kubernetes) are considered a plus
• CI/CD pipelines and DevOps practices, are considered a plus
• Experience with at least one graphical user interface platform like Qt, is considered a plus
• Strong communication and collaboration skills
• Excellent written and verbal knowledge of English. Knowledge of an additional language is a plus

To start with, we give you the opportunity to thrive in a restless team and grow your potential in an innovative environment. As per your compensation and rewards package, this is a preview:

  💸 Competitive salary package and bonus scheme

  👩‍⚕️ Health and life insurance for you and your family

  🧘🏻 Employee wellness program & initiatives

  📚 Continuous training opportunities

  ⭐ Developmental feedback framework & career path

  ✈️ International mobility opportunities