Expert .NET Tech Lead

METALINE

. Design the technical architecture and interactions between applications .

Posted 11/10/2026full-timeChâtillon • FranceSenior💰 €76,000 - €90,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in .NET development, Software Craftsmanship principles, and technical architecture design, while ensuring high code quality and effective team collaboration. Fluent in French, with strong communication skills to bridge technical and business teams.

Highest-signal resume keywords

Expertise In .NET (C#, EF Core, .NET 8/9/Core)Software Craftsmanship (DDD, SOLID, Clean Code)Advanced T-SQL SkillsStrong Messaging Experience (Kafka, RabbitMQ, Solace)Significant Experience As A Tech Lead

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

.NET DevelopmentSoftware CraftsmanshipT-SQLUnit Testing StrategiesTechnical Architecture DesignCode Quality AssuranceTechnical DocumentationIntegration StandardsTechnical ReviewsContinuous Improvement

Soft Skills

Excellent Communication SkillsTeam CollaborationLeadershipProblem-SolvingAbility To Understand Complex Architectures

Tools & Technologies

KafkaRabbitMQSolaceEF Core.NET 8.NET 9Development Best PracticesTechnical AuditsIntegration PhasesKnowledge Sharing

Industry Keywords

Software DevelopmentTechnical ArchitectureCode QualityMessaging SystemsTechnical Specifications

Tech Stack

Tools & technologies

KafkaRabbitMQSQL.NET

About the role

Key responsibilities & impact

Design the technical architecture and interactions between applications
Ensure the quality, consistency, and completeness of technical specifications
Support teams in design decisions and development best practices
Promote the reuse of existing components and the continuous improvement of the application portfolio
Contribute to the development of strategic features
Supervise and coordinate developers’ technical activities
Define and promote development and integration standards
Validate the frameworks, patterns, and architectures implemented
Ensure code quality through technical reviews and audits
Promote Software Craftsmanship best practices
Contribute to unit testing strategies and improvements in software quality
Maintain an active technology watch and propose areas for improvement
Support teams during integration and release phases
Participate in Level 3 support for developed components
Contribute to technical documentation and knowledge sharing

Requirements

What you’ll need

More than 10 years of software development experience
Significant experience as a Tech Lead or Lead Developer
Expertise in .NET (C#, EF Core, .NET 8/9/Core)
Expertise in Software Craftsmanship (DDD, SOLID, Clean Code)
Advanced T-SQL skills
Strong messaging experience (Kafka, RabbitMQ, Solace)
Fluent French (mandatory)
Ability to bring a team of developers together around best practices
Excellent communication skills with technical and business teams
Ability to quickly understand complex architectures
Strong focus on code quality
Cross-functional collaboration with developers, architects, Product Owners, and operations teams