Jobs › Kraft Heinz

Principal Sci, R&D - Ingredient Technology

Kraft Heinz · Glenview, IL · $104,200–$130,200 a year · Full time

Posted Aug 12, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about an ingredient technology you discovered or developed and then scaled up.

What they are checking: Whether they have moved an idea from lab to real production, not just publications.

Tell me about a time you explained a complex ingredient science finding to business partners.

What they are checking: Whether they can work across lab and business settings, as the posting requires.

How do you decide when an ingredient project should be stopped?

What they are checking: Whether they can make hard calls on research that isn't paying off.

What would you do

We want a cleaner-label dressing without synthetic antioxidants. How would you protect oxidative quality?

What they are checking: Whether they know lipid oxidation and natural strategies to slow it without hurting taste.

An emulsion is stable in the lab but separates after scale-up. What would you look at?

What they are checking: Whether they understand how shear, temperature and order of addition change at scale.

How do you evaluate a new ingredient supplier's claims about functionality?

What they are checking: Whether they test claims independently and understand ingredient variability.

About the work

What drives the stability of an oil-in-water emulsion like mayonnaise, and how would you improve it?

What they are checking: Whether they understand interfacial science, droplet size and emulsifier function at a deep level.

How do fat, protein, salt and water interact to shape texture and melt in processed cheese?

What they are checking: Whether they know dairy fat systems well enough to predict how changes affect structure.

How do you frame a hypothesis for a new ingredient project so the work stays focused?

What they are checking: Whether they run research with clear, testable questions tied to business goals.

How would you use modeling to predict shelf life or lipid functionality?

What they are checking: Whether they can build predictive tools that reduce long trial-and-error testing.

Practice this interview out loud.

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The full job description

As published by Kraft Heinz.

Job Description Principal Scientist, R&D - Ingredient Technology (Fats & Emulsions) Job Summary: The Kraft Heinz Next Generation Ingredients R&D team is seeking an experienced scientist in ingredient technology and food system development to join the team in Glenview, IL. In this role, you will lead the discovery, development, and scale-up of new ingredient technologies and product concepts, with a core emphasis on lipid-containing food systems where fat functionality and stability drive product performance and shelf life . You will translate emerging ingredient, processing, and modeling capabilities into practical solutions for the North American portfolio, particularly in: • Oil-in-water emulsions (e.g., mayonnaise and salad dressing–type systems), where performance depends on interfacial behavior and emulsion stability • Dairy fat systems in processed cheese and cream cheese, where fat–protein–salt–water interactions and structure drive texture, melt, and quality Success requires strong ingredient science fundamental s and the ability to operate across laboratory and business settings. You will strengthen predictive control of lipid functionality and shelf-life ( especially oxidative quality in cleaner-label systems ). Key Responsibilities: • Lead lipid-driven ingredient technology initiatives by framing hypotheses and failure modes , then converting mechanistic understanding into formulation and process options for emulsions and dairy fat applications. • Identify and prioritize ingredient technology platforms across the North American portfolio using technology landscaping, literature review, and structured scoping, with focus on fats/oils functionality, emulsion performance, and oxidative stability. • Design and execute experimental plans (including stability and accelerated shelf-life); analyze data, develop recommendations, and assess technical risk—distinguishing physical instability (e.g., phase separation) from chemical instability (e.g., oxidation). • Apply ingredient science fundamentals to evaluate ingredient interactions, s tability, and performance in complex food systems — emphasizing interface s, fat–protein interactions, salt /water effects, and pro-oxidant drivers. • Leverage analytical, modeling, and digital tools to improve experimental efficiency and generate practical formulation and process guidance . • Build team capability through mentoring and reusable playbooks for experimental design, troubleshooting, and knowledge capture in emulsion stability and lipid oxidation risk . • Build and lead external research collaborations ( universities, suppliers, startups, and industry partners ) to validate emerging technologies and inform internal direction . • Lead cross-functional technical workstreams with key stakeholders (e.g., marketing, operations, quality, regulatory) to advance research and innovation where lipid chemistry or fat-structure stability drives quality or shelf-life risk. • Anticipate portfolio needs by proposing technology strategies, value hypotheses, and prioritized learning plans with decision points. • Define scalable application pathways from bench to commercial scale, including prototyping and scale-up trials. Requirements: • Bachelor’s in Food Science , Chemistry, Biochemistry, Molecular Biology, Dairy Science, Food Chemistry, or related fields. (Master’s or PhD preferred) • Minimum experience: 6 years (BS), 5 years (MS), or 4 years (PhD). • Strong background in ingredient science and ingredient technology development with depth in lipid-containing systems and the ability to diagnose and improve fat-driven performance and shelf-life. • Experience leading experiments at bench and pilot scale. Experience running trials in a plant setting is preferred. • Demonstrated ability to characterize ingredients and evaluate interactions using appropriate analytical and modeling approaches to assess performance across complex systems . • Knowledge of food industry trends, consumer preferences, and regulatory requirements , including experience navigating select cleaner-label programs and ingredient substitution within complex food systems. • Working knowledge of lipid chemistry and degradation pathways (e.g., oxidation) and their impact on product quality during shelf life. • Excellent communication, collaboration, and stakeholder leadership skills, with the ability to lead technically ambiguous cross-functional initiatives and communicate effectively with both technical and nontechnical audiences. • Demonstrated ability to scale technical capability through mentoring and by creating reusable guidance (e.g., playbooks, troubleshooting frameworks, experimental templates) that improves consistency and speed across multiple projects . • Ability to prioritize effectively, navigate ambiguity, and set technical direction by translating signals into hypotheses, learning agendas, and decision-ready recommendations. • Experience designing shelf-life and accelerated shelf-life studies, with familiarity in analytical, modeling, or AI-enabled tools that strengthen predictive understanding. Experience assessing oxidation is preferred —especially in systems without antioxidants and preservatives. • Demonstrated ability to establis h and lead collaborative research with universities, suppliers, startups, and industry partners. Our Total Rewards philosophy is to provide a meaningful and flexible spectrum of programs that equitably support our diverse workforce and their families and complement Kraft Heinz’ strategy and values. New Hire Base Salary Range: $104,200.00 - $130,200.00 Bonus: This position is eligible for a performance-based bonus as provided by the plan terms and governing documents. The compensation offered will take into account internal equity and may vary depending on the candidate's geographic region, job-related knowledge, skills, and experience among other factors Benefits: Coverage for employees (and their eligible dependents) through affordable access to healthcare, protection, and saving for the future, we offer plans tailored to meet you and your family’s needs. Coverage for benefits will be in accordance with the terms and conditions of the applicable plans and associated governing plan documents. Wellbeing: We offer events, resources, and learning opportunities that inspire a physical, social, emotional, and financial well-being lifestyle for our employees and their families. You’ll be able to participate in a variety of benefits and wellbeing programs that may vary by role, country, region, union status, and other employment status factors, for example: • Physical - Medical, Prescription Drug, Dental, Vision, Screenings/Assessments • Social - Paid Time Off, Company Holidays, Leave of Absence, Flexible Work Arrangements, Recognition, Training • Emotional – Employee Assistance Program , Wellbeing Programs, Family Support Programs • Financial – 401k, Life, Accidental Death & Dismemberment, Disability Location(s) Glenview R&D Center Kraft Heinz is an Equal Opportunity Employer – Underrepresented Ethnic Minority Groups/Women/Veterans/Individuals with Disabilities/Sexual Orientation/Gender Identity and other protected classes. In order to ensure reasonable accommodation for protected individuals, applicants that require accommodation in the job application process may contact NAZTAOps@kraftheinz.com for assistance.

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