Senior Backend Developer (Java, AWS, OVH)

About Us

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in engineering and leadership, we help companies build high‑performing teams by matching them with professionals who truly fit their needs.

About the client

Our client is a well‑established international software vendor operating in the Digital Experience Platform (DXP) space—helping enterprises unify content, customer data, and integrations to deliver high‑quality digital experiences at scale. Their platform powers both public‑facing systems with high traffic and large internal enterprise environments.

About the role

We’re looking for a Senior Software Engineer to join a highly experienced engineering team working on a modular, extensible platform combining Java backend systems and modern JS/TS frontends.

• Contribute across a complex product ecosystem, including core platform services, extensibility modules, and a next‑generation cloud platform roadmap.
• Involve in hands‑on development and active participation in technical decision‑making, architecture discussions, and production issue resolution.
• Focus on building and evolving a cloud orchestration layer, integrating deeply with cloud provider APIs (primarily AWS), while continuing to enhance the broader platform.

Working model: HYBRID OR REMOTE
Location: Paris / Lyon / Remote within France
Work permit / relocation support: available
Contract: Permanent
Interview Process: Intro Call + 4 client interviews

Responsibilities

• Develop and maintain features across Java (backend) and JS/TS (frontend) codebases
• Contribute to cloud platform development, including orchestration, provisioning, and lifecycle management
• Participate in architecture and design discussions, balancing performance, scalability, and maintainability
• Review code and ensure high standards in quality, testing, and technical debt management
• Debug and resolve complex production issues in collaboration with support teams
• Work closely with Product, QA, and cross‑functional teams to deliver reliable features
• Contribute to CI/CD pipelines, automation, and DevOps practices
• Support extensibility and modularity across the platform ecosystem

Tech Environment

• Backend: Java (JDK 17 → 21), Java EE, OSGi (Karaf), JCR/Jackrabbit, Lucene
• APIs: REST (JAX‑RS), GraphQL
• Frontend: JavaScript / TypeScript, React, TSX, micro‑frontends
• Cloud & DevOps: AWS, OVH, Docker, CI/CD pipelines
• Architecture: Modular platform, distributed systems, clustered deployments
• Other: Eventing, caching, workflows, headless CMS architecture

Requirements

• 8+ years of experience as a Software Engineer, with strong Java expertise in production environments
• Solid experience with JavaScript / TypeScript (React is a strong plus)
• Experience with cloud platforms (AWS required) and containerization (Docker)
• Strong understanding of CI/CD and DevOps practices
• Experience working on complex, scalable systems or product platforms
• Comfortable with code reviews, debugging, and writing maintainable code
• Ability to participate in technical discussions and trade‑offs
• Fluent in English (daily working language)

Nice to have

• Experience with OSGi / modular architectures
• Exposure to DXP / CMS / headless platforms
• Open‑source contributions or strong interest in OSS ecosystems