Job Description Summary

Job Description

Key Responsibilities:

Microservices Development

• Develop microservices using Java 21 and Spring Boot 3.5 with focus on performance and scalability
• Design and implement RESTful APIs following best practices and OpenAPI specifications
• Write clean, maintainable, and well-tested code following SOLID principles
• Develop automated tests using JUnit, Mockito, and REST Assured
• Participate in code reviews and contribute to back-end architecture decisions

Data Processing & Integration

• Build event-driven processing systems using MQTT for real-time energy data ingestion
• Implement multi-threaded processing to handle high-volume data streams efficiently
• Develop data integration modules supporting multiple protocols (MQTT, SFTP, SQL, REST)
• Design and optimize database schemas for relational and time-series data
• Implement load balancing strategies and ensure high availability of services

Cloud & DevOps Integration

• Integrate with AWS services (ECS, SSM, S3, etc.) for cloud-native deployments
• Implement monitoring and logging using CloudWatch, Grafana, and custom metrics
• Collaborate with DevOps team to optimize deployment pipelines and infrastructure
• Debug and optimize performance bottlenecks in production systems

Agile Collaboration

• Collaborate with front-end developers to define API contracts and data models
• Work within SAFe Agile methodology using Jira for task management
• Contribute to technical documentation in Confluence
• Participate in sprint planning, daily standups, and retrospectives

Qualifications

Education

• Bachelor's or Master's degree in Computer Science, Engineering, or related field, or equivalent professional experience

Experience

• Minimum of 3 years of professional back-end development experience with Java
• Strong experience with Spring Boot framework (version 3.x preferred)
• Solid understanding of RESTful API design and implementation
• Experience with relational databases (PostgreSQL, MySQL) and SQL
• Experience with multi-threaded programming and concurrent processing
• Experience with MQTT protocol and message-oriented middleware (desirable)
• Experience with time-series databases (InfluxDB, TimescaleDB) (desirable)
• Experience with event-driven architecture and asynchronous processing (desirable)
• Knowledge of energy data protocols or industrial IoT systems (desirable)

Technical Skills

• Core: Java 21, Spring Boot 3.5, RESTful API design (required)
• Protocols: MQTT, SQL, SFTP, REST API, load balancing (required)
• Processing: Multi-threaded programming, event-based architectures (required)
• Database: SQL databases, understanding of time-series data
• Cloud: AWS services (ECS, SSM, CloudWatch), Docker
• Tools: Git/GitHub, Jira, Confluence, IntelliJ IDEA or similar IDE (required)
• Testing: JUnit, Mockito, REST Assured (required)
• Monitoring: CloudWatch, Grafana, InfluxDB, Telegraf
• Experience with Apache Kafka, Redis, or RabbitMQ (desirable)
• Knowledge of security best practices and OAuth2 (desirable)
• Understanding of microservices patterns (circuit breaker, saga, etc.) (desirable)

Soft Skills

• Write clean, efficient, and maintainable code following best practices
• Strong problem-solving skills and ability to debug complex issues
• Understanding of microservices architecture and distributed systems concepts
• Proficient with Git version control and collaborative development workflows
• Experience with test-driven development and automated testing
• Ability to work independently while collaborating effectively with the team
• Eager to learn new technologies and continuously improve skills
• Good communication skills to discuss technical solutions with team members

Languages

• Fully proficient in English both written and spoken (required)
• Knowledge of French or German (desirable)

Certifications

• Java certifications (Oracle Certified Professional) (desirable)
• Spring Professional Certification (desirable)
• AWS certifications (Cloud Practitioner, Developer Associate) (desirable)

Additional Information