• Implement and iterate on backend features in the Rust-based Knowledge Graph service, including changes to the query engine, SDLC and code indexing flows, and API endpoints (including MCP endpoints) under guidance from senior and staff engineers • Help maintain integrations between Knowledge Graph and the rest of the GitLab platform, working in areas that touch GitLab Rails, the Data Insights Platform (Siphon, NATS, ClickHouse), and GitLab Duo Agent Platform • Contribute to system design discussions by proposing options, raising questions, and documenting decisions, with a focus on reliability, scalability, and maintainability for analytical graph workloads • Improve the operational maturity of the service by adding or enhancing metrics, logging, runbooks, alerts, and small readiness tasks, and by participating in on-call rotation as appropriate for your level and experience • Collaborate asynchronously with product, data, infrastructure, security, and AI counterparts to clarify requirements, align on scope, and ship features safely for customers and sustainably for the team • Use AI-assisted development workflows responsibly (for example, using Knowledge Graph-backed agents and internal Duo tooling), and share what works with the team while keeping a strong focus on code quality and correctness • Participate in code reviews, knowledge-sharing sessions, and pairing to both learn from others and help maintain consistent standards across the codebase • Contribute across the stack when needed, including occasional Ruby work for Rails integration and authorization paths, or small frontend changes related to Knowledge Graph features (for example, Software Architecture Map UI plumbing)

• Design, build, and maintain a unified Go-based instrumentation service that consolidates instrumentation across the entire company, eliminating the need for multiple language-specific SDKs while maintaining reliability and performance. • Manage the handling of the sending, transit, and quality of instrumentation data across the system, ensuring data integrity that directly impacts the company's key prioritization and usage billing accuracy. • Train and assist product development teams across the company on how to instrument their features using the unified service, providing documentation, guidance, and technical help. • Manage on-call duties during working hours for systems that handle usage billing and instrumentation, ensuring system reliability and quick response to critical issues. • Work across research and development teams and the enterprise data organization to identify requirements and deliver solutions that serve multiple stakeholders. • Make key architectural decisions that balance the needs of product teams (who need ease of use) with data consumers (who need reliability and correctness), ensuring the system serves as a foundational service for the company.

• Own, architect, and implement Rive’s C++ core animation runtime. • Work closely with world class designers to innovate and implement brand new features. • Focus on improving performance from C++ optimizations, to SIMD, to threading, to clever math formulas, you’ll be continually thinking about how to maximize performance. • Contribute to and create new automated CI workflows on GitHub to ensure the quality of our runtime across all architectures and platforms.

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