31 intern engineering jobs at 23 companies in Union, SC
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Project Engineering Intern
Simpsonville, South Carolina, United States
OnsiteInternship
Fitesa: Fitesa manufactures nonwoven fabrics for hygiene and healthcare markets.
Internship supporting engineering projects; requires understanding of engineering principles, basic PLC/VFD/HMI programming knowledge, Microsoft Office proficiency, AutoCAD/Microsoft Project a plus, ability to lift 50 lbs and work on manufacturing floors.
PLC, VFD, HMI, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, AutoCAD, Microsoft Project
Refresco: Independent global provider of beverage bottling and manufacturing solutions.
Currently enrolled or recently graduated in relevant field (GPA≥3.0), age 18+, ability to work night shift, OSHA/PPE compliance, MS Office proficiency preferred, adaptable to fast-paced manufacturing environments.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
FerrovialNasdaq: FER: Develops, finances, and operates global transportation and energy infrastructure.
0+ YOEInternship in heavy civil; currently enrolled in a 4-year engineering program; strong MS Office skills; English communication; field and math aptitude.
Terracon: Provides geotechnical, environmental, construction, and facilities engineering services.
0.5+ YOEHigh school diploma, 6 months experience, valid driver\u0019s license may be required; obtain ACI within 90 days; nuclear density gauge certification preferred; completion of internal safety certifications.
Trench Group: Manufacturer of high-voltage products for global power transmission grids.
Currently pursuing a bachelor’s degree in engineering or related field, interest in manufacturing, strong organization and communication, basic engineering drawing familiarity preferred, Microsoft Office proficiency, hands‑on mindset, comfortable on factory floor.
Atlanta or Birmingham or Charlotte or Columbus or Dallas or Greenville or Huntsville or Jackson or Jacksonville or Miami or Nashville or Orlando or Raleigh
OnsiteFull Time, Internship
Brasfield & Gorrie: Provides general contracting, construction management, and design-build services.
Enrolled full-time student; US citizen or permanent resident; minimum 3.0 GPA; able to work 40 hours per week in Fall 2026; interest in construction; strong written and verbal communication.
Entry-Level HVAC Service Technician Intern (Commercial)
Greenville, South Carolina, United States
OnsiteFull Time, Internship
Miller Electric Company: Provides electrical and technology infrastructure construction and maintenance services.
High school diploma or GED required; valid driver’s license; EPA Universal certification preferred; trade/technical certification preferred; strong communication and teamwork skills; willingness to learn.
HVAC, refrigeration, gasification, building automation
SEENYSE: SEE: Global provider of food and protective packaging solutions.
Enrollment in an Associate in Applied Science in Mechatronics, Electronics Engineering Technology, or Mechanical Engineering Technology; maintain 2.8+ GPA and enrollment until graduation; follow site safety rules.
Construction Project Manager Intern or Co-Op (2027)
Greenville, South Carolina, United States
OnsiteInternship, Full Time
ARCO Design/Build: Provides design-build construction for industrial and commercial facilities.
Enrolled in an accredited undergraduate or graduate program in construction/engineering/architecture, strong communication and attention to detail, GPA 3.0+ preferred; prior co-op/internship in construction preferred.
Construction Project Manager Intern or Co-Op (2027)
Greenville, South Carolina, United States
OnsiteInternship
ARCO Design/Build: Nationwide design-build construction firm specializing in industrial facilities.
Enrolled in an accredited undergraduate or graduate program in civil, mechanical, architectural, construction management, building science, or construction engineering; strong verbal communication, attention to detail, work ethic; previous co-op/intern experience and GPA 3.0+ preferred.
MacLean Power Systems: Manufactures engineered components for electrical and telecommunications infrastructure.
5+ YOEBachelor's or Master's in engineering preferred with >5 years experience (10+ years considered without degree). Experience with rubber processes, AIAG core tools (PFMEAs, Control Plans, SPC, MSA), ISO/IATF internal auditing, and statistical analysis software required.
Microsoft Office, Minitab, Document/QMS Control systems, LIM systems, SPC Systems, PFMEAs, Control Plans, MSA, 5S
Atlas CopcoNasdaq Stockholm: ATCO A: Manufactures industrial compressors, vacuum systems, and power tools.
Eligible to work in the U.S. without company assistance, strong written and verbal communication, attention to detail, initiative, and ability to work onsite in Rock Hill; flexible 20–30 hours/week internship program with potential extensions.
Proterra: Vehicle electrification solutions developer and manufacturer.
5+ YOEBachelor's degree in engineering; 5+ years supplier quality experience in manufacturing; PPAP/APQP/FMEA/SPC/MSA/8D; GD&T per ASME Y14.5-2018; supplier audits; IATF16949/ISO9001; domestic and international travel up to 30%; CAD proficiency; strong communication and cross-functional collaboration.
Field Service Engineer (Remote/80% Travel) (103300)
Greenville or Pfäffikon
FieldFull Time
OerlikonSIX Swiss Exchange: OERL: Provides surface coatings and advanced materials for global industries.
3+ YOE3+ years electro-mechanical field service experience, Associates degree required (Bachelor's preferred), ability to travel 80% including international travel, strong customer communication and troubleshooting skills.
Ascent IndustriesNASDAQ: ACNT: Produces specialty chemicals and industrial tubular products for global markets.
5+ YOE3+ MgmtBachelor's in science or engineering, 5+ years manufacturing quality operations, 3+ years quality management, knowledge of ISO/QMS, internal audit experience; ISO 9001 internal auditor preferred.