KELVYA

Company Name: KELVYA
Job Title: H/F Développeur Services BackEnd Python
Job Description: **Job Title** BackEnd Python Services Developer (M/F) **Role Summary** Design, build, and operate robust Python back‑end services for a data‑driven deep‑tech company. The role delivers high‑performance APIs, real‑time streaming, and distributed orchestration, aligning with machine‑learning workflows and internal SaaS offerings. The engineer will shape architecture, automating deployment, observability, and security across cloud‑native environments. **Expectations** - **0‑3 months – Foundations**: Audit current APIs, strengthen authentication, create core services (auth, orchestration, data access), and interface with data science teams. - **3‑12 months – Scalability & Integration**: Design multi‑tenant services, deploy full observability stack, integrate hybrid cloud storage, and define new API layers (analytics, exploration, 3D). - **12 months+ – Excellence & Growth**: Establish engineering standards, validate platform security and compliance, optimize large‑scale performance, and support the expansion of a full industrial SaaS product. **Key Responsibilities** - Architect and implement backend services in Python (FastAPI, async). - Design and enforce robust API security (JWT/OAuth2, RBAC, Vault). - Develop CI/CD pipelines (GitLab, GitOps), deploy to Kubernetes using IaC (Terraform, Ansible). - Implement comprehensive observability (Prometheus, Grafana, logs) and define SLO/SLI metrics. - Write clear documentation, conduct code reviews, and enforce test‑driven development. - Collaborate closely with data‑science, ML, and product teams to align APIs with model or simulation needs. - Mentor peers, set coding standards, and drive continuous improvement initiatives. - Contribute to architectural discussions, security assessments, and incident response. **Required Skills** - **Languages & Frameworks**: Python, FastAPI, async programming. - **API & Security**: RESTful design, JWT/OAuth2, RBAC, secrets management (Vault), SAST/DAST. - **Infrastructure & Ops**: Kubernetes, Terraform/Ansible, GitOps, CI/CD (GitLab). - **Observability**: Prometheus, Grafana, structured logging. - **Cloud**: Experience with cloud‑native tools, hybrid storage integration. - **Soft Skills**: Autonomy, documentation, code review, teaching, and stakeholder communication. - **Experience**: Minimum 3 years in backend development, API design, and cloud‑native operations. **Required Education & Certifications** - Bachelor’s (or Master’s) degree in Computer Science, Software Engineering, or a related field. - Relevant certifications preferred: Certified Kubernetes Administrator (CKA), Certified Kubernetes Application Developer (CKAD), Cloud Engineer (AWS, GCP, or Azure), or DevOps‑focused credentials.

Sainte-luce-sur-loire, France

Hybrid

Junior

03-11-2025

Company Name: KELVYA
Job Title: H/F Ingénieur DevOps (Python / SoA)
Job Description: **Job Title** DevOps Engineer (Python / SoA) **Role Summary** Lead the build, deployment, and operation of the company’s first product, driving end‑to‑end cloud‑first, multi‑cloud, on‑premise, and hybrid infrastructure strategy. Serve as the primary DevOps engineering driver, shaping tooling, security, observability, and deployment pipelines while collaborating closely with the lead tech to scale operations from beta to Series A readiness. **Expectations** * 3+ years DevOps experience in a fast‑moving startup or deep‑tech environment. * Hands‑on leadership on cloud architecture, IaC, CI/CD, and monitoring from inception through growth. * Proven ability to set up secure, highly‑available Kubernetes, Terraform, Ansible, and GitOps pipelines. * Documentation, knowledge sharing, and mentorship of junior engineers. * Proactive planning for compliance (SOC 2, ISO 27001) and cost optimization. **Key Responsibilities** 1. Standardize tooling (Docker, Python, GitLab CI) and audit current infrastructure using Terraform, Ansible, and ArgoCD. 2. Design and deploy multi‑cloud / on‑premise infrastructure, ensuring scalability, resilience, and security compliance. 3. Implement comprehensive observability stack (Prometheus, Grafana), SLO/SLI metrics, and cost‑tracking dashboards. 4. Enforce GitOps workflow, maintain CI/CD pipelines, and integrate automated testing and deployments. 5. Lead security hardening: Vault secrets management, role‑based access, SAST/DAST, and secure coding practices. 6. Perform architecture reviews and cost optimization; prepare for SOC 2 / ISO 27001 certification. 7. Mentor junior MLOps/DevOps personnel and, after 24 months, build and lead a DevOps team. **Required Skills** * Strong Python programming and API integration. * Deep expertise in Docker, Kubernetes, and Git‑based version control. * Proficiency with IaC tools – Terraform / OpenTofu and configuration management – Ansible. * CI/CD design (GitLab CI or equivalent) with end‑to‑end pipelines. * Monitoring and observability: Prometheus, Grafana, and alerting systems. * Security fundamentals: secrets management (Vault), SAST/DAST, RBAC, and container hardening. * Multi‑cloud architecture (AWS, Azure, GCP) and hybrid/on‑prem solutions. * Strong documentation, communication, and problem‑solving skills. **Required Education & Certifications** * Bachelor’s degree in Computer Science, Engineering, or related technical field. * Industry cloud certifications (e.g., AWS Certified DevOps Engineer, Azure DevOps Engineer Associate, or GCP Professional Cloud DevOps Engineer) are desirable. ---

Sainte-luce-sur-loire, France

Hybrid

Junior

03-11-2025

Company Name: KELVYA
Job Title: - Développeur Sénior ASP.NET 4.8 F/H
Job Description: **Job Title:** Senior ASP.NET 4.8 Developer (F/M) **Role Summary:** Lead the design, development, and maintenance of web applications on the .NET 4.8 stack, ensuring high performance, robustness, and security. Mentor junior developers, contribute to technical discussions, and produce comprehensive documentation. **Expectations:** - Deliver production‑ready code within agreed timelines. - Adhere to best practices for performance and security. - Actively support continuous improvement of development processes. - Foster a collaborative environment with code reviews and knowledge sharing. **Key Responsibilities:** - Design, develop, and maintain ASP.NET Web Forms and MVC applications. - Perform technical and functional analysis of requirements. - Draft detailed technical specifications. - Create unit tests and participate in integration testing. - Optimize application performance and implement security controls. - Provide corrective and evolutionary maintenance for existing solutions. - Conduct code reviews and promote quality standards. - Mentor junior developers (pair programming, code reviews, coaching). - Write technical guides, user documentation, and architecture documentation. - Keep project documentation current. **Required Skills:** - Proficient in .NET Framework 4.8, ASP.NET Web Forms/MVC, and C#. - Strong knowledge of MySQL database design and queries. - Experience with Visual Studio, Git, Bitbucket, and Azure DevOps. - Solid understanding of application security best practices. **Preferred Skills:** - Agile (Scrum) methodology experience. - Familiarity with Telerik controls. - Exposure to .NET Core/.NET 6+ is a plus. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent professional experience). - No specific certifications required, but .NET or Azure certifications are advantageous.

Angers, France

On site

13-11-2025

Company Name: KELVYA
Job Title: - Architecte Solution - FINTECH F/H
Job Description: **Job Title** Solution Architect – FinTech (F/M) **Role Summary** Design and drive enterprise‑wide architectures for a large financial technology organization, ensuring alignment with business strategy and IT governance, while managing security and risk. Lead the evolution of architecture frameworks, governance processes, and standards, and maintain comprehensive architecture documentation. **Expectations** - Minimum 5 years as a Solution Architect on strategic, high‑risk business‑IT initiatives. - Strong analytical, pragmatic, and collaborative mindset. - Operational proficiency in English (reading, writing, speaking). **Key Responsibilities** - Partner with business and IT stakeholders to define coherent architecture solutions that support the company’s long‑term information system trajectory. - Develop, refine, and enforce the architecture framework, including processes, governance, standards, and requirements aligned with the broader group’s guidelines. - Maintain the architecture repository and associated documentation to ensure accuracy, consistency, and accessibility. - Provide expert guidance on all architecture domains: business, application, data, and technology. - Champion best practices in security, risk management, and compliance across all projects. **Required Skills** - In‑depth knowledge of modern enterprise architecture components and patterns. - Proficiency with architecture modeling tools: ArchiMate, UML. - Experience with TOGAF framework and governance at scale. - Practical understanding of APIs, microservices, API Management, CIAM, IDP, event‑driven design, cloud computing, data integration (ETL), and observability. - Familiarity with facilitation tools: Jira, Confluence. - Strong written and verbal communication in English. **Required Education & Certifications** - Bachelor’s or Master’s degree in Computer Science, Information Systems, or related field (equivalent experience accepted). - TOGAF certification strongly preferred; other architecture or security certifications (e.g., CBAP, CISSP) are a plus.

Nantes, France

On site

Mid level

13-11-2025

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