31 developer intern jobs at 25 companies in Clayton, DE
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Chemical Engineer Fall Intern
Newark, Delaware, United States
OnsiteFull Time, Internship
ChemoursNYSE: CC: Manufactures specialty chemicals, refrigerants, and high-performance industrial fluoropolymers.
Must be an undergraduate Junior+ pursuing a Chemical Engineering (or similar) degree; lab and process experience preferred (reaction engineering, thermodynamics, filtration, distillation); safe chemical handling and data analysis skills; GPA 3.0+ preferred.
Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Media or Louisville or Baltimore or Golden or Nashville or Fairfax
OnsiteInternship
LegenceNasdaq: LGN: Engineering and maintenance services for mission-critical building systems.
Pursuing ABET-accredited undergraduate engineering degree (min GPA 3.39). Proficiency with Microsoft Word and Excel; CAD experience helpful. Strong communication, ability to travel locally for field work. No sponsorship available.
Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Baltimore or Fairfax or Nashville or Media or Louisville or Golden
OnsiteInternship
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a mechanical engineering undergraduate degree from an ABET-accredited university (min GPA 3.39). Proficiency with Microsoft Word and Excel; CAD helpful. Strong communication, teamwork, and ability to travel locally for field work.
Athena: Provides premium managed executive assistant services for global leaders.
Pursuing or recently completed degree in CS/Stats or related field; strong Python; experience with ML libraries (TensorFlow, PyTorch); knowledge of ML fundamentals and NLP; interest in AI agentic systems; quick learner.
Agilent TechnologiesNYSE: A: Provides instruments, software, and services for laboratory scientists.
Enrolled in electrical/electronics (or related) engineering program, available 40 hrs/week, hands-on electronics skills, teamwork and communication, Excel and programming proficiency.
LaFrance: Designs and manufactures custom on-product branding and nameplates.
R&D internship role in an Innovation Lab; fall 2026 start; responsibilities include supporting materials research, data collection, and collaboration with engineers.
Mosaic Community Services: Provides outpatient mental health and addiction recovery services.
Unpaid level I fieldwork for students enrolled in an accredited occupational therapy program affiliated with Sheppard Pratt or Mosaic. Must work under OT supervision, perform screenings/assessments, lead OT groups, document care, and develop entry-level clinical skills.
Cincinnati or Syracuse or Raleigh or Phoenix or Irvine or Highlands Ranch or Sandy Hook or Wilmington or Augusta or Chicago or New Orleans or Portland or Hanover or Boston or Detroit or East Windsor or Portland or Austin or Richmond
$105k-$150k/yrOnsiteFull Time
ArcadisEuronext Amsterdam: ARCAD: Designing and engineering sustainable solutions for natural and built environments
4+ YOEBachelor’s in engineering; 4+ years of relevant experience; EIT certification; working toward PE; knowledge of national/international standards; OSHA training preferred.
AutoCAD, Revit, Elum Tools, BIM360, SKM, Etap, EDSA, Easy Power
2027 Engineering Corporate Intern Program - Product Development Track
Mossville or Brooklyn Park or Decatur or Fort Worth or Lafayette or Pontiac or Kennett Square or Pittsburgh or El Reno or Schertz or Rapid City or Griffin or Denison or Houston or East Peoria or Clayton or West Fargo or Alpharetta or Peoria
$25-$43/hrOnsiteFull Time, Internship
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
Full-time 12-week, 40-hr/wk internship for students pursuing an ABET-accredited engineering degree; 3.0+ GPA, 24+ semester hours completed, ability to relocate/commute, engineering fundamentals and analytical skills.
Cincinnati or Syracuse or Raleigh or Phoenix or Irvine or Highlands Ranch or Newtown or Wilmington or Augusta or Chicago or New Orleans or Portland or Hanover or Boston or Detroit or East Windsor or Portland or Austin or Richmond
$105k-$150k/yrOnsiteFull Time
ArcadisEuronext Amsterdam: ARCAD: Global design, engineering, and consultancy for natural and built assets.
4+ YOEBachelor's in engineering, EIT and working toward PE, 4+ years engineering experience, knowledge of national/international electrical standards, OSHA preferred, fluency with AutoCAD, Revit, Elum Tools, BIM360, SKM, Etap, EDSA, Easy Power.
AutoCAD, Revit, Elum Tools, BIM360, SKM, Etap, EDSA, Easy Power
3+ YOEBSME and 3-5 years in custom equipment manufacturing; electro-mechanical packaging; SolidWorks; MS Office; able to lift 30 lbs; strong communication; adaptable to priorities; electrical/electronic knowledge; travel ~10% domestic and 5% international.
SolidWorks, MS Office, Project Management software
Laitram: Global manufacturer of conveyor, automation, and access solutions.
2+ YOEBachelor's in industrial/mechanical engineering, 2+ years lean manufacturing experience, Excel proficiency, blueprint reading, strong communication and problem-solving; some international travel (<10%).
Integral Federal: Delivers technology and intelligence solutions for national security missions.
8+ YOEDatabase design, DBMS, programming, operating systems internals, data manipulation; TS/SCI clearance; 8+ years BA/BS or 10+ years AS/AA experience in gov programs.
DBMS, Programming, Operating Systems, Data Manipulation
Bloom EnergyNYSE: BE: Manufactures solid oxide fuel cell systems for onsite power.
5+ YOEBS in Mechanical or Electrical Engineering or Construction Management; 5+ years field experience; strong communication; MS preferred; MS Office, Salesforce, Oracle; international project experience desirable.
Markon: Provides professional services and management consulting for government agencies.
5+ YOE5–8 years in reverse engineering or related field; Bachelor's degree in CS/Engineering or related field; experience with assembly, C/C++, C#, Java, Perl, Python; strong reverse engineering and binary analysis; OS internals analysis; familiarity with reverse engineering tools; kernel-level programming or forensics; ability to document and present fi...
Civil Engineer I (Selective Certification- Public Works) Pay Grade 26- AFSCME 1607
New Castle, Delaware, United States
$60k-$97k/yrOnsiteFull Time
New Castle County: Providing essential public services and infrastructure to county residents.
Bachelor's in civil engineering (ABET/EAC), ability to obtain Engineer Intern (EI) certification within 6 months, valid Delaware Class D driver's license, pass physical and background check, knowledge of hydraulics/hydrology and field construction.
Geographic Information Systems (GIS), computerized maintenance management systems
JBC Associates: Provides construction management and inspection services for infrastructure projects.
10+ YOEBachelor's in construction management/architecture/engineering required, 10+ years construction experience, strong communication and organizational skills; e-Builder/Procure experience a plus; background check required; sponsorship not available.
AstraZenecaLondon Stock Exchange: AZN: Researches and develops medicines to treat major diseases globally.
5+ YOELead US medical strategy for early pipeline; serve as internal US medical authority; build external networks; drive translational, early development and real-world data initiatives.
Audit Manager II (US) Internal Audit Learning and Development
Mount Laurel or Wilmington or Charlotte
$92k-$149k/yrOnsiteFull Time
TD BankToronto Stock Exchange: TD: Provide retail, commercial, and wholesale banking and financial services.
7+ YOEUndergraduate degree and 7+ years' relevant experience; internal audit experience preferred; strong facilitation, presentation, and content development skills; ability to manage multiple L&D initiatives; travel up to monthly.