Job Description Our Small Molecule API Chemical Technical Operations Unit is seeking a highly motivated individual to fill an open Technical Lead position to support drug substance tech transfer and commercial manufacture within our External Manufacturing Network. This is an exciting opportunity to work with key strategic external partners, grow technical experience in API manufacturing, and work on high visibility network initiatives. Our team strives to provide technical excellence in our work and be strong partners, collaborators, and leaders within the small molecule line of business at our company. This position reports to the Director, Chemical Technical Operations, Small Molecule API External Manufacturing. The Technical Lead will be responsible for the management of the technical interface between our company and External Partners (EP). The technical lead will provide process support to External Partners for existing supply products to resolve production issues, evaluate and manage process change requests, proactively assess, and manage process/technical risks, and provide guidance on process improvement and capacity optimization. The technical lead will also provide oversight of External Partners during New Product Introductions and Technical Transfers, proactively identifying process/technical risks as part of pre-execution activities, providing on-site support during execution, and supporting post-execution activities. Key Responsibilities: - Operate independently on priorities established with assigned External Partners. - Foster proactive partnerships with External Partners to meet business goals, identify and mitigate risks, and continuously enhance performance. - Maintain a strong focus on compliance and Environmental Health and Safety (EHS) to drive supply excellence. - Serve as the primary technical contact for assigned External Partners while coordinating with impacted company sites and External Partners. - Collaborate with internal teams to ensure seamless product supply with an end-to-end mindset. - Initiate and drive change controls to completion. - Provide rapid support to External Partners to resolve manufacturing challenges and minimize supply disruptions. - Collaborate with Research Laboratories groups during New Product Introductions/Technical Transfers and new technology development. - Offer on-site support at External Partners as required, proactively identifying risks and supporting all phases of execution. - Conduct technical due diligence assessments and provide expert consultation on chemical manufacturing matters. - Review process change requests and deviation reports while ensuring regulatory compliance. Education and Minimum Requirements: - Bachelor’s degree in engineering, chemistry sciences or related discipline with a minimum of 7 years of relevant work experience in manufacturing or development, in the areas of process start up, technology introduction, manufacturing and/or technical transfer - A minimum of 7 years of experience in manufacturing, specifically in Small Molecule API process production, development, optimization, and technical transfer. - GMP experience in pharmaceutical manufacturing, ensuring compliance with quality and regulatory standards. What You Bring: - Exceptional organizational skills and the ability to work independently. - Proven leadership attributes including a global mindset, an end-to-end supply chain perspective, and strong collaborative abilities across functions and geographies. - Demonstrated capacity to solve complex technical challenges, lead project teams, and influence stakeholders effectively. - A solid understanding of small molecule pharmaceutical manufacturing processes. - Fluency in Italian & English is essential - Ability to travel up to ~50% Required Skills: Adaptability, Automation Systems, Capital Project Management, Change Management, Clinical Manufacturing, Data Analysis, Decision Making, Drug Product Manufacturing, Interpersonal Relationships, Lean Manufacturing, Manufacturing Scale-Up, Regulatory Compliance, Root Cause Analysis (RCA), Strategic Thinking, Technical Transfer Preferred Skills: Current Employees apply HERE Current Contingent Workers apply HERE Search Firm Representatives Please Read Carefully Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails. Employee Status: Regular Relocation: VISA Sponsorship: Travel Requirements: Flexible Work Arrangements: Remote Shift: Valid Driving License: Hazardous Material(s): Job Posting End Date: 04/30/2026*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make groundbreaking brands like Firefox, the privacy-minded web browser. Now, with more than 200 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, privacy, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Firefox Data Science team partners with Product and Engineering to grow usage of our flagship product: Firefox, the privacy-minded web browser. Our work informs prioritization, investment decisions, and the long-term growth strategy across Firefox. The Senior Data Scientist will lead analytical support for a feature area to drive measurable user growth by framing ambiguous questions, designing measurement strategies, and delivering insights that shape product decisions. They will also contribute to the team's forecasting and growth modeling efforts, helping translate statistical models into actionable growth strategies. This role emphasizes judgment, communication, and influence, supported by strong technical execution. What you’ll do: - Own the analytical success for a feature area by defining north-star metrics, building datasets, establishing measurement strategies, and driving data-driven decisions - Provide deep-dive and root-cause analyses to guide feature development, such as understanding what’s driving a metric change or opportunity sizing of new features - Design and analyze experiments to understand feature impact, user behavior, and causal relationships - Design measurement plans to evaluate new growth initiatives and validate assumptions over time - Contribute to the team's statistical forecasting models and help translate model outputs into actionable growth plans - Sit at the intersection between product, engineering, and leadership to advise, influence, support, and implement our product decisions - Cultivate a culture of measurement and advocate for strong analytical standards and methodologies across the organization What you’ll bring: - 6+ years of experience in data science, analytics, or applied quantitative analysis, with a track record of influencing business decisions through data - Advanced proficiency in SQL and Python for analysis, modeling, and validation - Background in experimentation (A/B testing) and causal inference for product development - Familiarity with time-series forecasting or statistical modeling techniques - Experience communicating models and findings to senior leadership and cross-functional partners - Ability to operate effectively in fast-paced environments with multiple viable options, delivering directional insights with clear rationale - Commitment to our values: - Welcoming differences - Being relationship-minded - Practicing responsible participation - Having grit What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc.varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D #LI-REMOTE Req ID: R3100 Hiring Ranges: US Tier 1 Locations $150,000—$200,000 USD US Tier 2 Locations $138,000—$184,000 USD US Tier 3 Locations $127,000—$170,000 USD

• Own the analytical success for a feature area by defining north-star metrics, building datasets, establishing measurement strategies, and driving data-driven decisions • Provide deep-dive and root-cause analyses to guide feature development, such as understanding what’s driving a metric change or opportunity sizing of new features • Design and analyze experiments to understand feature impact, user behavior, and causal relationships • Design measurement plans to evaluate new growth initiatives and validate assumptions over time • Contribute to the team's statistical forecasting models and help translate model outputs into actionable growth plans • Sit at the intersection between product, engineering, and leadership to advise, influence, support, and implement our product decisions • Cultivate a culture of measurement and advocate for strong analytical standards and methodologies across the organization

• You analyze our complex data and derive valuable insights using data mining, clustering, forecasting, or recommendation/classification methods. • You ensure the correctness of our data across different systems. • You analyze our data, present the results in an understandable way, and derive concrete strategic actions. • You work closely with Product Management, Community Management, and the executive team — not in an ivory tower, but as a collaborative sparring partner. • You connect quantitative analyses with qualitative feedback from our community to enable well-founded decisions. • You establish best practices such as code reviews and documentation. • You take on technical and, prospectively, disciplinary leadership of a small team, support the development of your colleagues, and further build out the area structurally. • Together with the executive team, you define the long-term data strategy and establish a true data culture within the company.