SFEIR

About the Company

Le Groupe SFEIR s’impose comme un acteur majeur dans la construction de systèmes d’information modernes, grâce à un quadruple savoir-faire : Engineering, Consulting, Training et Tooling. Avec plus de 950 développeuses et développeurs, nous sommes fiers de concevoir et de déployer des solutions innovantes dans des domaines stratégiques tels que l'intelligence artificielle (IA), la data, le cloud, le software et la sécurité. Notre mission : accompagner les C-Level dans leurs réflexions stratégiques, démarrer des projets à grande vitesse, et créer rapidement de la valeur pour nos clients. Pourquoi choisir SFEIR ? Expertise technique reconnue : nos domaines d’excellence incluent les langages tels que Java, JavaScript, Go, .NET, NodeJS et Python. Pionnier du Cloud : acteur de référence en France, nous aidons nos clients à accélérer leur transformation numérique avec des technologies de pointe. Valeurs humaines fortes : chez SFEIR, nous partageons une culture basée sur le partage, la bienveillance et l’humilité. Angelo, développeur Agile Web depuis 5 ans chez SFEIR, témoigne : « Lorsque j’ai passé les PlayOffs, c’était une expérience enrichissante. J’ai rencontré des évaluateurs brillants et bienveillants. J’ai appris en mode coaching. » Une différence dans l’ADN : Nicolas, Software Architect et Team Leader chez SFEIR depuis 8 ans, résume ainsi notre singularité : « C’est un état d’esprit. L’humain avant tout. La fierté d’être développeur. Le salaire au-dessus du marché aussi. Nous appartenons à une famille. Tout le monde est accessible et prêt à aider. Chez SFEIR, chacun peut se développer. » Notre process de recrutement : les PlayOffs Un parcours unique pour identifier les talents, avec 3 tests d’évaluation technique en peer-programming : Algorithme - Langage - Infrastructure as Code. SFEIR, c’est bien plus qu’un cabinet de conseil technologique : c’est une communauté d’experts, un partenaire stratégique, et une entreprise où chacun peut s’épanouir pleinement.

Listed Jobs

Company Name

SFEIR

Job Title

Développeur.euse C# / .Net expérimenté.e

Job Description

Job Title: Senior C# / .Net Developer Role Summary: Lead the design, development, and optimization of .NET backend solutions, secure APIs, and mobile SDKs. Participate in architecture decisions, enforce coding standards, mentor junior developers, and deliver technical training sessions. Expactations: Demonstrate advanced C#/.NET expertise; drive high-quality code, secure design, and performant systems; contribute to technical committees and architectural reviews; mentor and coach peers; facilitate knowledge sharing through workshops and documentation. Key Responsibilities: - Design, code, and deploy robust C#/.NET services, including REST APIs and microservices. - Ensure security compliance (OWASP, custom auth) for exposed APIs and SDKs. - Optimize database interactions (SQL Server, stored procedures, EF Core). - Implement CI/CD pipelines using Azure DevOps or equivalent. - Participate in architecture discussions and technical steering committees. - Review code, enforce best practices, and maintain code quality metrics. - Mentor junior developers and conduct training on ASP.NET Core, Entity Framework, and REST design. Required Skills: - Expert knowledge of C#, .NET Framework, .NET Core, ASP.NET Core. - Proficient with Entity Framework Core, LINQ, and relational database tuning. - Strong understanding of RESTful API design, secure coding, and authentication. - Experience with continuous integration/delivery (Azure DevOps, GitHub Actions). - Familiarity with cloud platforms (Azure, AWS, or GCP) and microservices architecture. - Ability to mentor, teach, and influence best practices within a team. - Solid grasp of Agile/Scrum processes and collaborative tools. Required Education & Certifications: - Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field. - Preferred certifications: Microsoft Certified: Azure Developer Associate, Microsoft Certified Solutions Developer (.NET), or equivalent.

Toulouse, France

Hybrid

03-12-2025

Company Name

SFEIR

Job Title

Développeur(euse) Python expérimenté(e)

Job Description

**Job Title:** Senior Python Developer **Role Summary:** Design, develop, and maintain scalable distributed systems and cloud-native infrastructures using Python. Lead technical initiatives, mentor junior developers, and drive architectural improvements through research and proof‑of‑concepts. Deliver high‑quality data pipelines, REST APIs, and AI‑enhanced services that have tangible business impact. **Expectations:** - Own end‑to‑end Python development across cloud platforms. - Mentor junior team members and act as a technical point of contact. - Propose and validate architectural enhancements and optimizations. - Collaborate cross‑functionally with product, data science, and infrastructure teams. **Key Responsibilities:** - Architect and implement distributed systems at scale with Python. - Refactor and upgrade cloud infrastructure (e.g., migrating from Flask to FastAPI, protobuf to Pydantic). - Build robust, high‑performance data pipelines leveraging BigQuery, Dataflow, and other GCP services. - Develop complex RESTful APIs using FastAPI within distributed architectures. - Automate content translation and AI integrations (e.g., Google Cloud Generative AI, Natural Language API). - Create Jupyter notebooks for data ingestion and processing. - Set up document‑based knowledge bases and onboard new teams. - Validate machine‑learning results and generate actionable reports. **Required Skills:** - **Programming:** Advanced Python (3.x), strong debugging and testing practices. - **Frameworks & Libraries:** FastAPI, Flask, Pydantic, protobuf, NumPy/Pandas. - **Cloud & Architecture:** GCP (BigQuery, Dataflow, Cloud Functions), experience with CI/CD pipelines, IaC (e.g., Terraform, Cloud Deployment Manager). - **Data Engineering:** Building scalable ETL/ELT pipelines, data modeling, performance tuning. - **AI Integration:** Working with generative AI APIs, natural language processing APIs. - **Mentorship & Leadership:** Proven ability to coach junior engineers and influence technical direction. - **Version Control & DevOps:** Git, GitHub Actions, Docker, Kubernetes. - **Soft Skills:** Clear communication, problem‑solving, collaborative mindset. **Required Education & Certifications:** - Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field. - Preferred certifications: Google Cloud Professional Data Engineer, Google Cloud Professional Cloud Architect, or equivalent. ---

Lille, France

Hybrid

11-12-2025

Company Name

SFEIR

Job Title

GenAI Engineer

Job Description

Job title: GenAI Engineer Role Summary: Design, develop, and deploy unified GenAI APIs and chatbots leveraging multi‑LLM architectures, advanced RAG, and fine‑tuned NLP models on cloud platforms. Expactations: - Deliver production‑ready GenAI services that integrate text, image, video, and multimodal capabilities. - Optimize NLP pipelines and maintain efficient, cost‑aware cloud infrastructure. - Champion continuous experimentation, rapid iteration, and technical evangelism within the team. Key Responsibilities: - Build and expose GenAI APIs (FastAPI, LangChain, LiteLLM) on GCP/Gate platforms. - Implement contextual RAG‑driven chatbots with hyper‑personalized recommendations. - Integrate Vertex AI and orchestrate multi‑cloud solutions. - Design AI digital twins to model complex ecosystems. - Manage and refine multi‑LLM orchestration and RAG pipelines. Required Skills: - 2‑3 years of professional experience in GenAI engineering. - Proficient in Python, FastAPI, LangChain, LiteLLM, Vertex AI, and cloud architecture. - Experienced with multi‑LLM orchestration, advanced RAG, NLP fine‑tuning, and diffusion models. - Strong FinOps mindset for complex cloud environments. - Demonstrated ability to prototype quickly, document thoroughly, and evangelize solutions. Required Education & Certifications: - Bachelor’s degree in Computer Science, Engineering, or related field. - Relevant cloud or AI certifications (e.g., GCP Cloud AI, AWS AI, Azure AI) are preferred.

Paris, France

Hybrid

11-12-2025

Company Name

SFEIR

Job Title

Senior Account Manager

Job Description

**Job Title:** Senior Account Manager **Role Summary:** Strategically develop and manage high‑potential enterprise accounts in finance, insurance, industry, and public sectors. Coordinate cross‑functional teams, partner ecosystems (Google Cloud, Microsoft Azure, AWS), and delivery execution to deliver tech solutions in cloud, software development, data, AI, and training. Lead market intelligence and co‑sell initiatives to drive business growth. **Expectations:** - Minimum 5 years in B2B tech sales (ESN, consulting, SaaS, cloud). - Proven ability to execute complex sales cycles, manage key accounts, and respond to strategic tenders. - Strong relational skills with clients, technical teams, recruiters, and partners. - Structured, autonomous, collaborative mindset. - Bonus: experience with co‑selling frameworks of Google, Microsoft, or AWS. **Key Responsibilities:** - Build and expand a portfolio of strategic accounts with tailored account plans. - Partner with commercial leadership, technical teams, and external partners to deliver solutions. - Oversee partnership relationships and consortiums, especially in multi‑actor or public tenders. - Act as liaison to delivery, assembling teams with recruiters and co‑managing projects with Engineering Managers to ensure client satisfaction. - Maintain proactive market watch on AI, cloud, data, security, and other emerging trends; provide insights to stakeholders. - Document and update account plans, opportunities, and forecasts in CRM to ensure transparent visibility. **Required Skills:** - B2B tech sales expertise, including complex multi‑stakeholder negotiations. - Account management and sales cycle ownership (prospecting, qualification, proposal, closing). - Stakeholder management across commercial, technical, recruitment, and partner domains. - Strategic thinking and solution‑selling capabilities. - Proficiency in CRM systems and data‑driven reporting. - Excellent written and verbal communication in English (French preferred but not mandatory). - Ability to thrive in a fast‑paced, cross‑functional environment. **Required Education & Certifications:** - Bachelor’s degree in Business, Marketing, Engineering, or related field. - Additional certifications in cloud platforms (AWS, Azure, GCP) or sales methodologies are a plus.

Neuilly-sur-seine, France

On site

Senior

12-12-2025