Senior Server-Side Tracking Engineer

Addingwell is a server-side tracking solution that enables brands and their partner agencies to collect high-quality data in a reliable and privacy-friendly way. Part of the Didomi ecosystem, Addingwell serves a demanding clientele through a network of specialized agencies.The RoleAs Senior Server-Side Tracking Engineer, you become Addingwell's technical reference — on the client side, the agency side, and the product side. This role is designed for an expert who enjoys solving complex problems as much as explaining them clearly, and who can bridge the gap between technical and business.You take over and structure a high-impact scope: partner relations, day-to-day technical operations, documentation, and product collaboration.Your responsibilities are as follows:Agency Relations & Partner EnablementBe a key technical contact for Addingwell's partner agencies.Support agencies through their integrations: onboarding, deployments, and advanced troubleshooting.Create and maintain enablement resources (guides, FAQs, procedures) for partners.Set up feedback loops between agencies and internal teams to identify recurring pain points.Be the primary technical point of contact for technology partners (Google, Meta, etc.) and oversee integrations and certifications.Day-to-Day Technical OperationsEnsure the quality and reliability of server-side integrations for Addingwell clients.Investigate and resolve technical incidents (data collection, tagging flows, connectors).Collaborate with engineering to prioritize fixes and improve resolution times.Contribute to the evolution of internal tools, dashboards, and support processes.Technical DocumentationDrive Addingwell's technical documentation strategy (internal and client-facing).Write and maintain integration guides, API references, and troubleshooting procedures.Work with Product and engineering teams to ensure content consistency and currency.Product CollaborationRelay field feedback (clients, agencies) to the Product team to influence the roadmap.Participate in the design and rollout of new features, ensuring technical readiness for support.Proactively propose improvements that enhance the client and partner experience.Experience & Technical Skills6+ years of experience in a technical role (senior technical support, solutions engineer, technical consultant, etc.).Strong expertise in server-side tracking: GTM Server-Side.Good knowledge of JavaScript and tag management architectures (including GTM client-side).Hands-on experience with analytics tools: GA4, Piano Analytics, or equivalents.Comfortable with REST APIs, webhooks, and debugging tools (Postman, Charles Proxy, etc.).Soft Skills & MindsetExcellent interpersonal skills: you can adapt your communication to both technical and non-technical audiences.Self-driven and detail-oriented: you manage your priorities and deliver reliably.A natural educator: you enjoy explaining, documenting, and sharing knowledge.Comfortable in a scale-up environment: you know how to build structure where there is none yet.Fluent in both English and French (required).Nice to HaveExperience in a digital agency or multi-client consulting environment.Knowledge of privacy, consent, and GDPR compliance issues in the context of tracking.Experience writing structured technical documentation (Notion, Confluence, GitBook, etc.).Desire to step into a technical lead role, with a mindset of being the go-to reference within the team.Applicants who contact employees directly regarding their application will not receive a response. Please submit your application through the designated application form.We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.The information collected from your application is subject to data processing on the basis of the performance of pre-contractual measures. The processing is intended for the management of applications for positions at Didomi. The fields marked with an asterisk are mandatory. Failure to complete them will result in your application being impossible to process. The recipients of the data are Didomi’s Human Resources team and other people in the company who are involved in the recruitment process, as well as their service providers. The data provided will be kept on our records for a period of two years, beginning from the last contact Didomi has with the candidate. In accordance with the applicable legislation you have the right to access, rectification, deletion, opposition. In case of disputes, you have the right to refer to the Commission National de l'Informatique et des Libertés. You can exercise your rights by contacting the data controller at the following address dpo@didomi.ioWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessi