10 Thermo Fisher Scientific HR leaders
Clarissa Juckem, Senior Director, HR Business Partner - Global, is one of ten Thermo Fisher Scientific HR leaders listed here, alongside people in senior director and director roles in HR business partnering and global human resources. A reader can learn how HR leaders work at Thermo Fisher Scientific from people who have held the role.
Professionals to explore
Bill Duffin
LinkedInExperience: Director, HR Business Partner · Thermo Fisher Scientific
Bill Duffin has been Director, HR Business Partner at Thermo Fisher Scientific since September 2026 and was a Senior HR Business Partner there from 2021 to 2026. Bill Duffin's profile also lists Director, Strategic HR Business Partner at ERT from 2016 to 2021 and Director, Human Resources at Haemonetics from 2010 to 2016.
Bob Ryczek
LinkedInExperience: Human Resources Director / Global Operations HR Business Partner · Thermo Fisher Scientific
Bob Ryczek has been Human Resources Director / Global Operations HR Business Partner at Thermo Fisher Scientific since December 2020. Bob Ryczek's profile also lists Sr. Human Resources Manager / Senior HR Business Partner at Northrop Grumman from 2015 to 2020 and the same Human Resources Director / Global Operations HR Business Partner title at Philips Lighting from 2010 to 2015.
Chris Dumm
LinkedInExperience: Senior Director Global HR Business Partner · Thermo Fisher Scientific
Chris Dumm has been Senior Director Global HR Business Partner at Thermo Fisher Scientific since October 2022. Chris Dumm's profile also lists Sr. Director HR Business Partner at Truepill in 2022, Executive Director of Human Resources at Advanced ICU Care from 2015 to 2016 and VP Human Resources at Lumara Health from 1998 to 2015.
Clarissa Juckem
LinkedInExperience: Senior Director, HR Business Partner - Global · Thermo Fisher Scientific
Clarissa Juckem has been Senior Director, HR Business Partner - Global at Thermo Fisher Scientific since June 2026. Clarissa Juckem was Regional Human Resources Director - Commercial Sales and Global Marketing - Biosciences Division there from 2023 to 2026 and Global Human Resources Director - Supply Chain, Procurement - Life and Genetic Sciences from 2020 to 2023.
Heather Stewart
LinkedInExperience: Senior Director, HRBP · Thermo Fisher Scientific
Heather Stewart has been Senior Director, HRBP at Thermo Fisher Scientific since March 2024 and has also held the title Director, HR Business Partner - Global Services there since May 2022. Heather Stewart was Director, Global HRBP at the company from 2021 to 2022 and Human Resources Director, Lenexa, KS from 2018 to 2020.
Madalina Kincel
LinkedInExperience: Director HR Business Partner · Thermo Fisher Scientific
Madalina Kincel has been Director HR Business Partner at Thermo Fisher Scientific since August 2024. Madalina Kincel was Director, Global Talent Partner for Operations and Quality there from 2022 to 2024 and Sr Manager, Global Talent Management from 2021 to 2022, and the profile lists talent strategy and organizational effectiveness as focus areas.
Marissa Fontana
LinkedInExperience: Sr. Director, Human Resources Business Partner · Thermo Fisher Scientific
Marissa Fontana has been Sr. Director, Human Resources Business Partner at Thermo Fisher Scientific since October 2020 and was Director, Human Resources there from 2019 to 2020. Marissa Fontana's profile also lists Sr. Manager, Human Resources Business Partner at Sanofi from 2016 to 2019.
Miranda Ippolito
LinkedInExperience: Senior Director, HR Business Partner · Thermo Fisher Scientific
Miranda Ippolito has been Senior Director, HR Business Partner at Thermo Fisher Scientific since August 2022. Miranda Ippolito was Director of Diversity & Inclusion there from 2020 to 2022 and Director, Talent Acquisition Commercial Operations & TA Business Partner SDG from 2018 to 2020, and was Site HR Leader & Global HR Business Partner – Austin from 2014 to 2017.
Skyler King
LinkedInExperience: Director, Global HR Business Partner · Thermo Fisher Scientific
Skyler King has been Director, Global HR Business Partner at Thermo Fisher Scientific since August 2026. Skyler King was Manager, Global HR Business Partner - Clinical Development Services there from 2022 to 2024, Global HR Business Partner - Analytical Services Division from 2019 to 2022 and Associate Director, Global HR Business Partner - Lifecycle Safety & Regulatory Affairs at IQVIA in 2026.
Tairee Wallace
LinkedInExperience: Global Director, Human Resources · Thermo Fisher Scientific
Tairee Wallace has been Global Director, Human Resources at Thermo Fisher Scientific since July 2022 and was Regional Human Resources Director there from 2021 to 2022. Tairee Wallace was Senior Manager Human Resources Operations at the company in 2021, and the profile also lists HR Director, Northeast Region at Concentra from 2013 to 2019.
Choose the right perspective
Choose the person whose HR remit is closest to your question, since partnering with a commercial group, an operations group or a global function involves different work. Look at when each person moved into the current role to judge how recent their experience is.
Questions to take into the conversation
- 01What did you prioritize in your first months in your current HR role, and why?
- 02How do you work with business leaders when their people needs pull in different directions?
- 03What has your own experience taught you about making an organizational change stick?
Reaching Thermo Fisher Scientific HR leaders
How can I contact one of these Thermo Fisher Scientific HR leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: Thermo Fisher Scientific, based on profile data retrieved on October 19, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach Thermo Fisher Scientific HR leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
Can an AI agent ask one of these Thermo Fisher Scientific HR leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
Request a correction or removal