A FULL-SERVICE
MODERN ENGINEERING
FOR VISIONARY PROJECTS
BY THE NUMBERS
JMK's extensive portfolio reflects our successful track-record in driving results for mid-to large-scale, complex projects while staying within client budgets.
In today’s environment, offering creative, well-tailored services is crucial; our innovative MEP model ensures high-quality work and efficiency without the overhead and rigidity of traditional firms.
PROJECTS & PARTNERS
ABB / Waikiki Shore / Continental Assets Management / Dovetail + Co / OceanIt / HAWAIʻI COMMUNITY FOUNDATION'S C. BREWER BUILDING / University of Hawaiʻi at Hilo / WORKSHOP-HI / Kōkua HAWAIʻI FOUNDATION / United States Army / WKF
Trusted by Top GLOBAL AND HAWAIʻI Brands






Serving the Hawaiian ISLANDS
SIGNATURE
PROJECT





JMK Engineers is proud to have played a role in the transformation of the Wayfinder Waikīkī, a revitalization project that has breathed new life into one of Hawaiʻi's most iconic neighborhoods.
As the principal engineer responsible for the mechanical, electrical, plumbing, and HVAC systems in its modern redesign, our work reflects JMK's commitment to enhancing the community, preserving the structure's look and feel, and elevating the guest experience through both visible and invisible design elements.
DETAILS
CLIENT

PROJECT PARTNERS




NEWS & NOTEWORTHY
PROJECT AWARDS

IIDA Hawaii Pacific Chapter Ho'ohuli Awards

BD’s Gold Key Awards For Excellence in Hospitality Design
OUR STORY
Justin Killingsworth, founder and principal, launched JMK Engineers after more than a decade of working for large, traditional firms in Kansas and Hawaiʻi. As a multi-discipline mechanical and electrical engineer, Justin developed a trusted client base that relies on his multidisciplinary expertise, the quality of his technical work, and timely services. Prior to JMK's launch, Justin's portfolio included a diverse set of projects & clients including medical facilities, K-12 and university education projects, large-scale Hawai'i resorts, Kamehameha Schools, and a large, modern, self-sustaining estate in Hawaiʻi.
After building upon his earlier practice, Justin founded JMK five years ago to break from a traditional firm and become a leading partner in the industry, serving select clients across the Hawaiian Islands and beyond.
OUR TEAM

Justin M. Killingsworth
Principal / MEP Engineer
A dually-trained & licensed mechanical and electrical engineer, Justin brings 20+ years of design and construction experience. His interdisciplinary background gives him a unique ability to see the big picture while sweating the details—a combination that helps projects run smoothly from concept to completion. He’s passionate about thoughtful, well-coordinated design and enjoys collaborating with industry partners.
Back when “free time” was a thing, you could find him out on the water, on the golf course, or checking out the latest restaurants (you know - for design research).

Gabriel
Electrical Designer / Drafting Tech
(Photo Coming Soon)
Gabriel brings more than two decades of MEP drafting and design expertise to the team, with experience spanning multiple jurisdictions across the mainland and Hawai‘i.
His experience has given him a knack for turning complex systems into clean, buildable drawings that make the work of everyone around him just a little easier.
When he’s not translating buildings into lines and layers, Gabriel can usually be found soaking up the sunshine with his family, exploring new trails with his dogs, or trying to convince his kids that drafting really is cool. He’s the kind of guy who’ll happily debate the merits of different pen weights over lunch—but he’ll also share his favorite beach snack without hesitation.

Annam
Mechanical Engineer
With nearly a decade of experience in mechanical design and construction, Annam brings a practical, detail-oriented approach to every project. His background gives him a strong understanding of how systems not only work on paper but also come to life in the field. Whether collaborating with design teams or coordinating with contractors, he’s driven by clear communication, thoughtful solutions, and well-built results.
When the workday wraps, Annam trades ductwork and diffuser schedules for turntables; lifelong music enthusiast and DJ, he’s just as comfortable behind a mixer as he is on the mat, where he trains in jiu-jitsu.
Remote. Hybrid.









