Senior Backend Developer (Java, AWS, OVH)

Job Description

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.

You will contribute across a complex product ecosystem, including core platform services, extensibility modules, and a next-generation cloud platform roadmap. The role involves both hands-on development and active participation in technical decision-making, architecture discussions, and production issue resolution.

A key focus area for the upcoming roadmap includes 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