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 strongly preferred). Bachelor's degree in Food Science, Chemistry, or a closely related scientific field. Proven track record of designing and running end-to-end stability studies and validating test methods for complex formulation matrices.

Direct experience negotiating pricing, scope, and service level agreements with external testing laboratories. Demonstrated ability to independently own specs, make critical quality calls, and communicate effectively across cross-functional teams, co-manufacturers, and external partners. Fully remote work structure built on high trust, flexibility, and autonomy.

Team Connection: Biannual all-expenses-paid team off-sites to connect in person. Health & Wellness Coverage:

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