Consultant, Tech Lead – Java Expert

METALINE

. Develop new APIs . Design applications from a technical perspective . Ensure the reuse of existing components . Contribute to improving the platform’s overall performance . Participate in platform modernization

Posted 9/25/2026contractChâtillon • FranceSenior💰 €70,000 - €86,000 per yearWebsite

Tech Stack

Tools & technologies

JavaKafkaSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop new APIs
Design applications from a technical perspective
Ensure the reuse of existing components
Contribute to improving the platform’s overall performance
Participate in platform modernization, particularly through the adoption of new technologies and IT systems architecture
Ensure code quality through unit testing and code reviews
Develop and maintain software integration standards
Validate software design
Participate in the platform’s application operations (Run): monitoring, reporting, and regular maintenance
Provide Level 3 support
Coordinate a team of developers and collaborate with stakeholders, department teams, and the end customer

Requirements

What you’ll need

Java 11+: Expert level – Required
Spring Boot 2+: Expert level – Required
RESTful APIs: Expert level – Required
Messaging (Kafka): Proficient – Important
Fluent French (Required)
Technical leadership and the ability to coordinate a team of developers
Thoroughness in applying quality standards, IT systems architecture principles, and code standardization practices
Strong interpersonal skills for close collaboration with various stakeholders, department teams, and the end customer
Analytical mindset and a proactive approach to continuous improvement and technology monitoring
Tech Lead / Expert profile with extensive experience (10+ years) in software design and development, ideally gained in complex e-commerce environments