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
Chemours
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.
1mo
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Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Media or Louisville or Baltimore or Golden or Nashville or Fairfax
OnsiteInternship
Legence
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.
CAD, Microsoft Word, Microsoft Excel
1mo
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Mechanical Engineer Intern/Co-op Fall 2026 - Energy Solutions
Baltimore or Fairfax or Nashville or Media or Louisville or Golden
OnsiteInternship
Legence
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.
CAD, Microsoft Word, Microsoft Excel
3mo
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AI Engineering Intern
Wilmington, Delaware, United States
RemoteFull Time
Athena
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.
Python, TensorFlow, PyTorch
2w
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Electrical Engineering Intern
Wilmington, Delaware, United States
$22-$24/hr OnsiteFull Time
Agilent Technologies
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.
Microsoft Excel
3mo
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Project Management Intern
Concordville or Newtown Square
OnsiteInternship
LaFrance
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.
1mo
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OT Intern- Rosedale/Belcamp
Rosedale or Belcamp
OnsiteInternship
Mosaic Community Services
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.
2mo
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Electrical Engineer
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/yr OnsiteFull Time
Arcadis
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
3w
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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/hr OnsiteFull Time, Internship
Caterpillar
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.
ANSYS, MATLAB, Simulink, C, C#, C++, Python, Visual Basic, CFD, FEA, HIL, SIL
2mo
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Electrical Engineer
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/yr OnsiteFull Time
Arcadis
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
1mo
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Mechanical Engineer
Stevensville, Maryland, United States
OnsiteFull Time
Miltec UV
Miltec UV: UV curing equipment manufacturer
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
1w
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Industrial Engineer (Entry-Level)
Sparrows Point, Maryland, United States
$71k-$177k/yr OnsiteFull Time
Laitram
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%).
Microsoft Excel
3mo
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Database Administrator Engineer Portal
Havre de Grace, Maryland, United States
$115k-$139k/yr OnsiteFull Time
Integral Federal
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
3mo
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Senior Staff Field Quality Engineer
Newark or Fieldsboro or New York or United States
$111k-$159k/yr HybridFull Time
Bloom Energy
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.
Microsoft Office, Salesforce, Oracle
2mo
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Reverse Engineer Level 2
Fort Meade, Maryland, United States
$150k-$180k/yr OnsiteFull Time
Markon
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...
IDA Pro, Ghidra, Binary Ninja, Assembly, C, C++, C#, Java, Perl, Python
2w
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Civil Engineer I (Selective Certification- Public Works) Pay Grade 26- AFSCME 1607
New Castle, Delaware, United States
$60k-$97k/yr OnsiteFull Time
New Castle County
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
1mo
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Resident Engineer - Phila International Airport
Tinicum Township or Philadelphia
$120k-$170k/yr OnsiteFull Time
JBC Associates
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.
e-Builder, Procure
3mo
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US Executive Director, Early Assets
Wilmington, Delaware, United States
$332k-$498k/yr HybridFull Time
AstraZeneca
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.
3mo
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Clean Energy and Technologies Project Leader
Newark, Delaware, United States
OnsiteFull Time
Air Liquide
Air LiquideEuronext Paris: AI: Supplies industrial gases, medical gases, and related technologies.
2+ YOEMaster’s degree in Management; 2 years in energy markets/systems and advanced analytics; 15% domestic/international travel.
Python
1w
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Audit Manager II (US) Internal Audit Learning and Development
Mount Laurel or Wilmington or Charlotte
$92k-$149k/yr OnsiteFull Time
TD Bank
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.

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