Senior Software Engineer JVM

Pelico; Paris; Sur place; EUR 90 000 - 120 000; Plein temps

Résumé du poste

Pelico seeks an experienced Lead ETL Backend Engineer to drive scalable data pipelines using Java/Kotlin for our manufacturing intelligence platform. You will design, implement, and optimize backend components, APIs, and data processing at scale, while ensuring performance and reliability.

You will mentor junior engineers, shape system architecture, and partner with DevOps to optimize CI/CD, security, and data integrity across distributed environments.

Qualifications

• Proven experience building ETL backends in Java or Kotlin.
• Strong understanding of data ingestion, processing, and analytics at scale.
• Experience with relational databases and API development.
• Familiarity with distributed systems concepts and performance optimization.
• Ability to mentor junior engineers and lead code reviews.
• Knowledge of secure coding practices and CI/CD practices.

Responsabilités

• Lead Pelico ETL backend development in Java for scalability and performance.
• Design, implement, and optimize data processing pipelines and APIs.
• Architect scalable services with modularity and maintainability.
• Collaborate with DevOps to optimize CI/CD pipelines and deployments.
• Mentor junior engineers through code reviews and knowledge sharing.
• Ensure data integrity, security, and reliability in distributed environments.

Connaissances

Java backend

Kotlin

Distributed systems

Relational databases

Performance optimization

Outils

CI/CD

API design

Description du poste

About Pelico

At Pelico, state-of-the-art technology meets supply-chain expertise in the search for operational excellence. Our manufacturing intelligence platform helps factories at Safran, Airbus, Daikin and other aerospace, defense, and industrial leaders stay agile and resilient — turning disruption into decisions. We're a fast-growing international SaaS scale-up:

About Pelico

At Pelico, state-of-the-art technology meets supply-chain expertise in the search for operational excellence. Our manufacturing intelligence platform helps factories at Safran, Airbus, Daikin and other aerospace, defense, and industrial leaders stay agile and resilient — turning disruption into decisions. We're a fast-growing international SaaS scale-up:

180+ Pelicans, 36+ nationalities, across Paris and Miami, making real impact, every day, on the ground.

Mission

This role focuses on building performant, maintainable systems while collaborating with cross-functional teams to deliver impactful features that meet business and customer needs.

Key Responsibilities

Lead Pelico ETL Backend Development in Java for Scalability and Performance

• Design, develop, and optimize Pelico ETL backend components using Java.


• Build scalable and efficient solutions for complex data processing.


• Integrate third-party services and APIs to extend platform capabilities.


• Solve complex performance bottlenecks and memory optimization challenges.

Design and Implement Robust System Architectures

• Architect scalable services with a focus on modularity and maintainability.


• Ensure data integrity, security, and availability in distributed environments.


• Collaborate with DevOps to optimize CI/CD pipelines and deployment strategies.

Drive Data-Driven Solutions and Integration Efforts

• Develop solutions for large-scale data ingestion, processing, and analysis.


• Optimize relational database interactions and distributed data systems.


• Collaborate with data engineers to refine data models and optimize queries.

Mentor and Guide Junior Engineers

• Provide technical leadership through code reviews and knowledge-sharing sessions.


• Support team growth by coaching junior engineers in Java best practices.


• Lead by example, fostering a culture of high standards and innovation.

Ensure Code Quality, Testing, and Best Practices

• Write clean, maintainable, and testable code following industry standards.


• Implement unit, integration, and performance testing to guarantee system stability.


• Drive adherence to secure coding practices and compliance requirements.

Technical Skills

Core Technical Proficiency

• Strong proficiency in Java or Kotlin (backend)


• Experience with relational databases and API development


• Understanding of distributed systems concepts


• Familiarity with performance optimization techniques

Software Architecture

• Knowledge of design principles (SOLID, separation of concerns, DRY)


• Understanding of design patterns


• Ability to write maintainable and testable code

Development Practices

• Experience with automated testing and CI/CD


• Ability to define and document technical specifications


• Balance between feature development and technical debt

Problem Solving

• Strong debugging and troubleshooting skills


• Ability to design robust, scalable solutions


• Risk identification and mitigation

Your Interview Experience

• HR screening Interview: 30 mins


• Hiring Manager Interview: 30 mins


• On-site case study : 1h30 (or online for remote candidates)


• Fit Interview : 45 mins


• Culture Fit and References check