Junior Software Engineer

The Hellenic Energy Exchange S.A. (HEnEx) is seeking a Junior Software Engineer to join its Research, Technology & Development Department. The department leads advanced research on energy markets, with a strong focus on advancing innovative technological solutions. As a Junior Software Engineer, you will be a key member of our team, actively contributing to the entire software development lifecycle—from design and implementation to deployment and maintenance. This role is ideal is ideal for someone enthusiastic about full stack web development, modern JavaScript/TypeScript technologies, APIs, databases, and cloud-based software delivery, with a keen interest in energy markets.

Your Duties And Responsibilities Will Include

• Develop and maintain responsive web applications, ensuring high code quality and optimal user experience.
• Design, develop, and deliver end-to-end software features across the frontend, backend, APIs, and database layers.
• Deploy and manage containerized applications using Docker and orchestrate workloads in an AWS environment.
• Assist in implementing and maintaining CI/CD pipelines using tools such as Jenkins, GitLab CI, or similar.
• Assist in routine database operations such as backups, updates, and performance monitoring
• Become familiar with the energy market business

Required Skills & Qualifications

• Bachelor’s degree in Engineering, Computer Science, Information Technology, or a related field.
• 1–2 years of relevant experience.
• Experience with JavaScript frameworks, preferably with Nuxt.js and NestJs
• Experience with centralized or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB).
• Familiarity with containerization and orchestration tools (e.g., Docker, Kubernetes).
• Excellent written and oral skills in English and Greek
• Fulfilled military obligations.

Preferred (Nice-to-Have) Skills

• Familiarity with energy markets.
• Familiarity with message queues like RabbitMQ or similar tools.
• Hands-on experience with cloud infrastructure services, preferably AWS (EC2, S3, RDS, IAM, CloudWatch, etc.).
• Familiarity with CI/CD tools.
• Experience in Linux-based environments and system monitoring tools.

What we offer

• Hybrid working model
• Competitive base salary
• Annual bonus based on company and individual performance
• Private health & life insurance with free inclusion of family members
• Family benefits (Kindergarten and summer camp allowance, Christmas gifts, increased parental leave, etc.)
• Subsidized meals in company restaurant
• 24/7 employee assistance program
• Participation in company sports activities (e.g., soccer, basketball, beach volleyball, pilates)