Tech Lead .NET Expert

Project overview

Hello,

We are looking for an expert back-office e-commerce Tech Lead (over 10 years of experience) for our client based in the Paris region.

Key project constraints

E-commerce, Software and document engineering

Deliverables include

Design

Development

Unit tests

Technical skills

.NET Expertise (C#, EF Core, .NET 8/9/Core) - Expert - Mandatory

Software Craftsmanship (DDD, SOLID, Clean Code) - Expert - Mandatory

T-SQL - Confirmed - Mandatory

Messaging (Kafka, RabbitMQ, Solace) - Confirmed - Mandatory

Language skills

Fluent French (Mandatory)

Detailed description

Expert profile only (> 10 years of experience).

E-commerce experience appreciated.

Profile definition

Ensures the completeness and relevance of specifications assigned to developers

Coordinates development plans and developer activities across all affected software components

Carries out the technical design of applications and exchanges within the framework of projects and evolutions, prioritizing the reuse of existing components

Develops, maintains, and strengthens software integration guidelines and carries out the technical design of applications and exchanges within the framework of projects and evolutions, prioritizing component reuse

Aligns work with urbanization principles and general software integration guidelines recommended by Transverse Architecture

Supervises the technical aspects of a project (upon request of the team lead)

Participates in the detailed functional analysis of user needs and may be involved in workshops for defining general specifications

Validates software design and proposes frameworks used within the project

STANDARDIZATION AND QUALITY

Ensures the quality of computer program code

Develops and maintains specific integration standards and patterns, and their dissemination to developers, ensuring these standards/patterns are followed by the team

Is also responsible for developing and maintaining cost/time estimates necessary for the services provided

Ensures the quality of development environments, developments, packaging, and the proper use of technologies through code audits

Conducts ongoing monitoring of technological advancements

ASSEMBLES COMPONENTS AND PREPARES SOLUTION DELIVERY

Within projects, assembles unit components into a coherent package for solution deployment and places it under configuration management

Ensures the availability of development environments

Defines and administers a library of software components, standards, and patterns, and ensures the documentation of these reusable components

PROVIDES LEVEL 3 SUPPORT

Provides L3 support for problem resolution with components developed by the team and deployed in the environments

Contributes to the writing of TMA (Third-Party Maintenance Agreement) contracts, integrating technical standards

COMMUNICATION AND TECHNOLOGICAL WATCH

Assists the team lead in identifying areas for technical improvement and skills to develop

Start date 11/23/2026

Location Châtillon

Travel required no

On-call duty required Yes

Desired on-site days per week 3 days per week

Subcontracting (freelance, IT service company, or other) on this project is Authorized

If you are interested in this position, please send your CV in Word format indicating your availability and your salary expectations or your daily rate if you are independent?

Project details

• Start: flexible
• Remote: hybrid
• Location: 92320 Châtillon, France, FR
• Rate: 75-75 EUR/h
• Languages: French