About Upgrade Resources
At Upgrade Resources, we go beyond recruiting. We build lasting partnerships. Our mission is to help businesses grow and professionals thrive through quality, integrity, and trust.
Our Story & Mission
At Upgrade Resources, we believe successful recruiting is about more than filling a role, it’s about creating lasting partnerships. Founded to solve the challenge of finding skilled talent in specialized industries, including Mechanical, Sales, Industrial, and Medical our mission is to help businesses grow stronger and professionals achieve meaningful careers through quality, integrity, and partnership.
About the Founder
Karen Beltethon, the founder of Upgrade Resources, brings years of recruiting experience and a passion for people. She believes successful recruiting & executive placement is about more than filling a role, it’s about creating lasting partnerships that benefit both employers and professionals.
Meet Our Team
Isabella Engkilterra
With a natural gift for balancing people, processes, and precision, Isabella is the driving force behind Upgrade Resources’ day-to-day success. As Backend Support Engineer, she brings a wealth of knowledge to the behind the scenes operations, seamlessly juggling candidate relationships, outreach, and sourcing strategies. Her ability to uncover top talent and keep the gears turning ensures our clients and candidates alike receive nothing less than exceptional results.
Rhonda Grubbs
Rhonda brings a dynamic blend of industry knowledge, relationship building expertise, and results driven focus to her role as National Account Manager. With a proven track record of managing large-scale accounts and delivering tailored workforce solutions, she ensures our clients receive unmatched service and long term value.
Passionate about creating strong partnerships, Rhonda thrives on understanding client needs and aligning them with the right talent strategies. Her dedication, professionalism, and ability to foster trust make her an integral part of our team and a true advocate for client success.
Rachel Shawlinski
Rachel is a results driven National Recruiting Specialist who focuses on connecting top talent with the right opportunities. Known for her responsiveness and attention to detail, she delivers a thoughtful, people-first recruiting experience for both candidates and clients. Her ability to understand roles beyond the resume helps ensure strong, long term placements.
Catherine Marrero
Catherine brings over a decade of full cycle recruiting experience across light industrial, commercial mechanical, and skilled trades.
She is known for her bilingual communication skills, sharp recruiting instincts, and dedication to building strong relationships with both candidates and clients. She is passionate about connecting skilled professionals with opportunities where their work is valued and their careers can grow.
Her commitment to quality, integrity, and long-term placements makes her invaluable to our skilled trades recruiting team.
Scott Beltethon
Scott specializes in recruiting top talent within the electrical utility construction industry, focusing on transmission, substation, and high-voltage projects nationwide. He partners with contractors and utility leaders to deliver experienced field professionals and construction leadership who keep critical infrastructure projects on track.
With a strong eye for industry alignment and verified field experience, Scott is committed to building long-term partnerships and delivering placements that strengthen safety, performance, and project success.
Our Core Values
Quality
Delivering the highest standards in every placement.
Integrity
Relationship Driven
Expertise
Our Process
Our proven process supports Mechanical, Sales, Industrial, and Electrical Utility Construction recruiting, ensuring the right match every time.
Discovery
Understanding your needs and goals.
Sourcing
Finding the right talent through our network and tools.
Vetting
Screening for skills, experience, and cultural fit.
Placement
Follow-Up
