LeHibou

Contractor job Backend Engineer

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LeHibou

Published on 27/10/2026

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Notre client dans le secteur Jeux et loisirs recherche un/une Backend Engineer H/F

Description de la mission :

Context

An international, fast-growing family-owned company is strengthening its backend engineering capabilities. The role contributes to ambitious international projects in a collaborative, high-performing environment that values autonomy, trust, and continuous learning.

Mission

Design, build, and evolve reliable and sustainable backend solutions that power customer experiences and business capabilities. Own solutions throughout their lifecycle, from design and implementation to release, monitoring, and iterative improvement.

Key responsibilities

  • Design, implement, release, monitor, and continuously improve backend solutions.

  • Collaborate closely with Product Managers, Frontend Engineers, and other stakeholders.

  • Apply strong backend engineering practices while considering product impact, reliability, and compliance.

  • Improve systems, engineering practices, tooling, and ways of working.

  • Take end-to-end ownership of solutions, from design through production and ongoing improvement.

Technical environment

  • Backend: .NET, C#

  • Event-driven architecture: RabbitMQ, NServiceBus

  • Databases: PostgreSQL, relational databases

  • Cloud: AWS, S3

Profile

Experience

  • Experience as a Backend Engineer in product-oriented environments.

Technical skills

  • Strong backend fundamentals, including API design, data modeling, testing, performance, resilience, and operability.

  • Hands-on experience with .NET (C#), backend services, and event-driven architectures.

  • Solid experience with relational databases, particularly PostgreSQL, and production systems.

  • Familiarity with cloud environments such as AWS and services such as S3.

Soft skills

  • Product-minded and collaborative, with the ability to work in small, autonomous, cross-functional teams.

  • Strong sense of ownership, pragmatism, and commitment to continuous learning.

  • Ability to consider product impact, reliability, and compliance in engineering decisions.

Benefits

  • Opportunity to contribute to ambitious international projects within a solid and growing group.

  • Collaborative, high-performing work environment and leadership based on trust, autonomy, talent, and shared values.

  • Continuous learning and career development through training and internal mobility.

  • Competitive salary and benefits package aligned with the local market.

  • Hybrid working model, with the possibility of working remotely up to 50% of working time.

  • International and collaborative environment where people come first.

Compétences / Qualités indispensables :

Backend engineering with .NET and C#, API design and backend fundamentals, Event-driven architectures (RabbitMQ, NServiceBus), PostgreSQL and relational databases, End-to-end ownership of production systems

Compétences / Qualités qui seraient un + :

Experience in large-scale and/or regulated product environments

Informations concernant le télétravail :

Oui — 2 jours/semaine

Candidate profile

  • Backend engineering with .NET and C#
  • API design and backend fundamentals
  • Event-driven architectures (RabbitMQ, NServiceBus)
  • PostgreSQL and relational databases
  • End-to-end ownership of production systems
Boulogne-Billancourt, Ile-de-France
20 - 99 employees
Start-up
LeHibou, c’est la première plateforme de consultants freelances spécialisés en Tech & Innovation en Europe, qui met en relation les meilleurs experts avec des Grands Comptes et ETI. Chiffres clés & croissance : ✅ +180 000 consultants Tech inscrits ✅ 112M€ de CA en 2024 ✅ Lauréat de la FrenchTech Next40 ✅ Champion de la Croissance (Les Echos 2024 / Sifted 50 2024 / FT 2024 / Tech500) Notre différence ? Une alternative innovante aux ESN traditionnelles, grâce à une plateforme innovante utilisant l’IA et à un accompagnement humain pour tous nos clients et freelances. Nos offres : - LeHibou Experts, la 1ère plateforme des Freelances Tech en Europe - LeHibou Cybersecurity, l’accompagnement en Cybersécurité - LeHibou Executive, les Managers de votre transition 📍 Bureaux à Paris, Bordeaux, Toulouse, Lyon, Nantes, Marseille, Grand Baie & Bruxelles

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Backend Engineer

LeHibou

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