Senior Java ETL Data Engineer

Jobtailor; Brussel; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Jobtailor is seeking an experienced Java engineer to design, develop and operate a near-real-time ETL engine processing data from renewable energy assets. You will architect integration with S3-compatible storage and streaming infrastructure, and balance real-time and batch processing trade-offs.

You will lead reliability through code reviews, testing and incident response, decompose pipeline problems into milestones, and maintain architecture decisions, runbooks and API documentation while

Qualifications

• 7+ years of software engineering experience, including at least 3 years writing and operating high-performance Java in production.
• Deep understanding of Java concurrency, parallelism and performance optimisation
• Hands-on experience with data processing pipelines on S3-compatible object storage
• Comfortable with Linux system administration
• Experience delivering and operating production systems end-to-end, including code review, testing, monitoring and incident response
• Ability to evaluate technologies and guide sound architectural choices
• Master's in Computer Science, Engineering or equivalent by experience
• Fluent spoken and written English
• Ability to work autonomously
• Ability to explain technical trade-offs to non-engineers
• Bonus: experience with Kafka, Flink or Pulsar, time-series databases, or the renewable energy sector

Responsabilités

• Design, develop and operate the Java ETL engine processing near-real-time data from millions of assets.
• Architect and integrate the engine with S3-compatible object storage and streaming infrastructure.
• Balance technical trade-offs between real-time and batch processing.
• Lead quality and reliability through code review, testing and SRE practices.
• Handle incident response and postmortem analysis.
• Decompose pipeline problems into actionable milestones and plans.
• Maintain architecture decisions, runbooks and API documentation.
• Work in a small cross-functional Product Engineering team and collaborate with Product Management and Operations

Connaissances

Java Concurrency

Performance Optimization

Code Review

Testing

Monitoring

Formation

Master's in Computer Science

Engineering

Outils

Kafka

Flink

Pulsar

Time-Series Databases

Description du poste

Design, develop and operate the Java ETL engine processing near-real-time data from millions of renewable energy assets
Architect and integrate the engine with S3-compatible object storage and streaming infrastructure
Balance technical trade-offs between real-time and batch processing
Lead quality and reliability through code review, testing and SRE practices
Handle incident response and postmortem analysis
Decompose pipeline problems into actionable milestones and plans
Maintain architecture decisions, runbooks and API documentation
Work in a small cross-functional Product Engineering team and collaborate with Product Management and Operations

Requirements

• 7+ years of software engineering experience, including at least 3 years writing and operating high-performance Java in production
• Deep understanding of Java concurrency, parallelism and performance optimisation
• Hands-on experience with data processing pipelines on S3-compatible object storage
• Comfortable with Linux system administration
• Experience delivering and operating production systems end-to-end, including code review, testing, monitoring and incident response
• Ability to evaluate technologies and guide sound architectural choices
• Master's in Computer Science, Engineering or equivalent by experience
• Fluent spoken and written English
• Ability to work autonomously
• Ability to explain technical trade-offs to non-engineers
• Bonus: experience with Kafka, Flink or Pulsar, time-series databases, or the renewable energy sector

Core Competencies

Demonstrates expertise in designing and operating Java ETL engines for processing near-real-time data, with a strong focus on performance optimization, incident response, and architectural decision-making. Proficient in collaborating within cross-functional teams and effectively communicating technical concepts to non-engineers.

Highest-signal resume keywords

• Java Software Engineering
• Data Processing Pipelines
• S3-Compatible Object Storage
• Linux System Administration
• Incident Response

Hard Skills

• Java Concurrency
• Performance Optimization
• Code Review
• Testing
• Monitoring

Soft Skills

• Autonomous Work
• Technical Communication

Certifications & Qualifications

• Master's in Computer Science
• Engineering

Industry Keywords

• Renewable Energy
• SRE Practices
• Cross-Functional Collaboration

Tools & Technologies

• Kafka
• Flink
• Pulsar
• Time-Series Databases