Our partner is looking for a Stability & Documentation Manager - R&D; based in Spain.
While formulation teams focus on flavor and performance, you will lead the stability testing strategy across a diverse gummy portfolio, validating complex analytical methods and negotiating directly with external testing labs. Operating in a fully remote, high-trust environment, you will act as the ultimate guardian of specification accuracy and product integrity. Beyond day-to-day testing, you will collaborate closely with Quality, Operations, and contract manufacturers to prevent quality issues long before launch. You will also participate in biannual team off-sites, combining remote flexibility with meaningful in-person collaboration.
Run Stability Programs: Design, execute, and oversee stability studies across the entire gummy portfolio, establishing testing protocols, tracking timepoints against shelf-life targets, and sharing key data with stakeholders.
Method Evaluation & Validation: Assess test method compatibility for complex matrices,



actively identifying detection limits or matrix interferences, and pushing back to find superior analytical solutions when needed.
Lab Management & Negotiation: Lead price, scope, and turnaround time negotiations directly with third-party contract testing laboratories.
Specification Sign-Off: Stage product specifications from initial draft through to final approval, exercising independent judgment on product sign-offs.
Early Issue Detection: Proactively identify potential stability, ingredient degradation, off-note, or packaging interaction issues before they impact quality or launch timelines.
Partner with Quality, Operations, and co-manufacturers to maintain consistent test methods, specs, and protocols from development to commercial production.
Experience: 4+ years of hands-on experience in R&D;, Quality, or Product Development within dietary supplements, food, or a regulated consumer product category (gummy or confectionery experience stro

📌 Stability & Documentation Manager - R&D (Madrid)
🏢 Lever
📍 Madrid