Sean Zoll

Denver,USA

Summary

Versatile Aerospace Electrical Engineer with a distinguished track record of designing high-reliability wire harnesses and electrical architectures across ULA launch vehicles, SNC military aircraft, and Honeywell defense programs. Proficient in a robust CAD suite, prioritizing daily expertise in Zuken (2D schematics) and Siemens NX (3D routing), supplemented by strong working knowledge of AutoCAD and SolidWorks. A highly collaborative design engineer who excels at translating complex schematics into buildable assemblies, managing supplier risk, and partnering directly with manufacturing shops to troubleshoot production and test anomalies for mission-critical hardware.

Overview

years of professional experience

Work History

Electrical Component Analysis Engineer

United Launch Alliance

Centennial, CO

04.2024 - Current

Hold rare dual-license certification in both NX (3D modeling) and Zuken (2D schematics), serving as a primary cross-functional engineering resource across flight development, qualification, and ground support teams.
Engineered wire harness schematics (Zuken) and 3D installation routing (NX) for the Vulcan launch vehicle first stage booster, interstage adapter, Centaur V upper stage, and payload fairing.
Deployed to Vandenberg Space Force Base (SLC-3E) to support electrical ground testing; performed physical configuration audits of installed harnesses to reverse-engineer and update master Zuken schematics.
Received two Electrical Ground Team Awards for cross-functional support, successfully bridging the gap between Vulcan development and launch site operations to capture and draft next-generation installation designs.
Traveled to the Decatur, Alabama production facility to provide direct engineering liaison support during the manufacturing and assembly phases of the Centaur V second stage.
Led end-to-end harnessing development for the qualification of a new analog video analysis system, integrating a complex suite of cameras, LEDs, and telemetry transducers across multiple vehicle stages.
Led "Make vs. Buy" trade studies for high-density interconnect assemblies, evaluating production risks—such as tight-tolerance hand-soldering of 24AWG wires onto Micro-D connectors—against vendor capabilities (HiRel, Glenair).
Optimized component sourcing strategy across key distributors (TTI, Powell, FDH) by evaluating vendor history, part quality, cost, and lead times to safeguard project timelines.
Collaborated with cross-functional teams—including Structures, Strength, Systems, EMI/RF, Configuration Management, and the Wire Shop—to resolve technical constraints and optimize design specifications.
Mentored and trained junior engineers, providing technical guidance on aerospace design standards, routing methodologies, and schematic tool workflows.

Electrical Engineer II

Sierra Nevada Corporation

Englewood, CO

05.2020 - 01.2024

Engineered electrical architectures for 7 distinct U.S. Department of Defense (DoD) programs, scaling designs for military aircraft ranging from 15 to 100+ passengers.
Designed critical aircraft mission systems, including AC/DC power distribution, communication arrays, navigation suites, search-and-rescue (SAR) assets, weapons integration, and complex sensor networks.
Served as hands-on engineering hangar liaison, troubleshooting complex electrical system installations and resolving technical discrepancies directly with avionics technicians.
Developed and revised end-to-end electrical engineering data packages using AutoCAD, SolidWorks, and PLM systems, delivering precise wiring diagrams, cable harnesses, and 3D installation layouts.
Specified and integrated high-reliability wiring media to military standards, utilizing fiber optics, CAT5/6 ethernet, coaxial cables, and M22759/M27500 Mil-Spec wire.

Electrical Engineer I

Honeywell FM&T

Kansas City, MO

01.2019 - 05.2020

Served as Purchased Product Engineer for nuclear defense programs, managing the fabrication of high-reliability cable harnesses utilizing schematics from Sandia National Laboratories and Los Alamos National Laboratories.
Partnered with national lab design engineers to establish optimized material selections and robust manufacturing processes, driving design-for-manufacturability (DFM).
Resolved production-floor anomalies, providing real-time troubleshooting and engineering dispositions for assembly errors alongside specialized cable technicians.
Deployed to contract manufacturing sites in Los Angeles and Dallas to audit production processes, enforce strict quality standards, and implement continuous improvements in harness fabrication.

Education

Bachelor of Science - Electrical Engineering

University of Missouri-Columbia

Columbia, MO

12-2018

Skills

Electrical Design & CAD Tools: Zuken E3series, Siemens NX, AutoCAD, SolidWorks
Data & Lifecycle Management (PLM): Teamcenter, ENOVIA, Adobe Acrobat
Connectors & Interconnects: MIL-DTL-38999 (D38999), Micro-D, D-Sub, Amphenol D369, RJ45, lanyard-pull (stage separation), cryogenic/space-rated connectors
RF & Specialty Media: Coaxial (TNC, SMA, BNC), twinaxial, triaxial, fiber optics, CAT5/CAT6, Mil-Spec wire (M22759, M27500), 24AWG wire

Harness Assembly & EMI Methodologies: Wire splicing, custom multi-layer shielding fabrication, shield termination (backshells, terminal lugs), EMI mitigation, aluminum tape wrap shielding (qualification test configurations)
Harness Hardware: Associated backshells, strain reliefs, shield terminations, heat shrink, and contacts
Supplier & Manufacturing Liaison: Supplier risk management, "Make vs Buy" trade studies, request for quote (RFQ), design-for-manufacturability (DFM), production shop troubleshooting
Business Productivity: Microsoft 365 Suite (Excel, Word, PowerPoint, Teams, SharePoint, OneNote)

Timeline