28 principle developer jobs at 23 companies in Crystal Lake, IL
1d
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Principle Engineer- SPAM
Jersey City or Chicago
$150k-$200k/yr HybridFull Time
Principal-level technical expertise in platform operations, anti-abuse, routing, monitoring, reliability, automation, regulatory controls, and cross-functional technical leadership.
AI
5d
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iSeries Developer
Bedford Park, Illinois, United States
$90k-$120k/yr HybridFull Time
Experienced RPG developer needed for iSeries application development, modernization, testing, troubleshooting, and deployment; requires iSeries programming knowledge and insurance principles; bachelor's degree preferred.
iSeries, AS/400, RPG IV/ILE, RPG Free, SQL, CL, Visual Studio Code, IBM i, ChatGPT, Claude, APIs, web services
2mo
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Engineer
Oakbrook Terrace, Illinois, United States
$85k-$127k/yr OnsiteFull Time
2+ YOEB.S. in Engineering required, 2-4 years professional engineering experience, ability to analyze electrical/mechanical systems, knowledge of engineering principles, standards, and problem-solving approaches.
2w
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Senior Full Stack Software Engineer - React/Java
Chicago, Illinois, United States
$113k-$188k/yr HybridFull Time
4+ YOE4+ years professional software experience, experience leading team-level projects, knowledge of micro-frontend principles, React and Java experience, GitHub Actions familiarity, strong communication and problem-solving.
React, Java, GitHub Actions
1mo
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CGD Engineer
Beloit, Wisconsin, United States
$100k-$150k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering or technical field, 5+ years experience, knowledge of ASME NQA-1 and nuclear facility principles, skilled with Microsoft 365, strong communication and vendor relations.
Microsoft 365
1d
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Entry-Level Engineer
Downers Grove, Illinois, United States
$78k-$83k/yr OnsiteFull Time
Bachelor of Science in engineering, engineering technology, construction management, or construction technology; engineering principles knowledge; effective verbal and written communication. Training provided.
1w
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Solutions Engineer
Schaumburg, Illinois, United States
$65k-$80k/yr OnsiteFull Time
1+ YOEBachelor’s degree in a technical or analytical field and 1–3 years in solutions engineering, technical sales, or product-focused consulting; requires SaaS architecture, consulting, and stakeholder skills.
SaaS, Blue Cross Blue Shield, Health Savings Account (HSA), Flexible Spending Account (FSA), Principal, Microsoft 401(k)
1mo
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PLC Engineer
Oak Creek, Wisconsin, United States
OnsiteFull Time
3+ YOEBachelor's in electrical/computer engineering,3+ years PLC programming and automation experience,knowledge of PLC hardware/software,electrical principles,control theory,problem solving,and project management.
PLC, Ladder Logic, Structured Text, HMI
2mo
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Electrical Design Engineer
Byron, Illinois, United States
$89k-$154k/yr OnsiteFull Time
0+ YOEB.S. in Engineering; coursework or experience in Electrical/Nuclear; Engineer in Training; strong grasp of engineering principles and safety standards.
4w
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Senior Mechanical Development Engineer
Northbrook, Illinois, United States
OnsiteFull Time
5+ YOERequires 5+ years in mechanical engineering, a mechanical engineering or equivalent bachelor's degree, electromechanical systems experience, and expertise in precision motion control, first-principles design, and validation.
SolidWorks, Finite Element Analysis (FEA), Product Data Management (PDM), MIL-STD-810
3w
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Transmission Line Engineer
Chicago, Illinois, United States
$80k-$180k/yr OnsiteFull Time
5+ YOEBS in Civil or Electrical Engineering, 5+ years transmission line design experience, PE licensure (or obtain within 1 year), proficiency in transmission design principles, strong communication skills.
PLS-CADD
3w
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Cyber SDC - Firewall Engineer - Manager
Chicago or United States
$145k-$266k/yr HybridFull Time
2+ YOE2-3 years network security experience with hands-on firewall experience; strong understanding of network protocols and security principles; Checkpoint/Tufin/Splunk/Netography experience; relevant certifications a plus.
Checkpoint, Tufin, Splunk, Netography
3w
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Site Reliability Engineer III
Chicago, Illinois, United States
$114k-$155k/yr OnsiteFull Time
3+ YOE3+ years applied SRE experience, proficiency with SRE principles, Python/Java/Spring Boot/.Net, observability, CI/CD, container orchestration, and use of enterprise AI for operations.
Python, Java, Spring Boot, .Net
2mo
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General Engineer - T&S Relay Engineering
Oakbrook Terrace, Illinois, United States
$92k-$127k/yr HybridFull Time
4+ YOEBachelor of Science in Engineering or Licensed Professional Engineer; 4-7 years engineering experience; knowledge of electrical/mechanical systems; strong problem-solving and engineering principles; familiarity with field test equipment; multiple degree/license combinations may reduce OJT.
3w
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Returning Intern Engineer - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
Allen Park or Ashwaubenon or Blue Ash or Chicago or Cleveland or Columbus or Detroit or Downers Grove or East Lansing or Grand Rapids or Indianapolis or Jackson or Madison or Milwaukee or Minneapolis or Sterling Heights or Valparaiso or Westfield
$21-$35/hr OnsiteInternship, Full Time
Current/former HNTB intern enrolled in an accredited post-secondary engineering program; high school diploma/GED, basic engineering principles and calculations, Microsoft Office Suite proficiency required.
Microsoft Office Suite
2w
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Returning Co-op Engineer- Fall/Winter/Spring 2026-2027-Great Lakes Division (For Current/Former HNTB Co-ops only)
Milwaukee or Valparaiso or Sterling Heights or East Lansing or Ashwaubenon or Jackson or Indianapolis or Downers Grove or Detroit or Allen Park or Cleveland or Grand Rapids or Columbus or Westfield or Blue Ash or Chicago or Minneapolis or Madison
OnsiteFull Time, Internship
High school diploma/GED and current enrollment in an accredited post-secondary engineering program. Basic engineering calculations, Microsoft Office Suite proficiency, and introductory engineering principles required.
Microsoft Office Suite
4w
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Lead Product Safety and Compliance Engineer, Power Test (TERADYNE, Deer Park, IL)
Deer Park, Illinois, United States
$141k-$226k/yr OnsiteFull Time
10+ YOEBachelor's in Engineering, 10+ years in product safety/compliance, expertise with IEC/EN 61010-1, EMC principles, safety testing, and cross-functional project leadership; travel up to 10%.
IEC/EN 61010-1, SEMI S2, SEMI S8, IEC 60825-1, EMC
2w
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Product Development Intern
Oak Brook, Illinois, United States
$28/hr HybridMultiple Commitments Available
Internship applying food science principles to product development, optimization, quality improvement, ingredient testing, project management, presentations, and cross-functional collaboration.
Food science
1w
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Research Analyst
Deerfield, Illinois, United States
$100k-$150k/yr HybridFull Time
2+ YOERequires 2+ years of investment research experience, a bachelor's degree in a listed field, analytical and communication skills, investment principles knowledge, and proficiency with Microsoft Office and financial databases.
Microsoft Office, Bloomberg, Morningstar, Bipsync, FactSet
1mo
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Post-Doctoral Fellow, Research - Arms & Hands Lab - Dr. Milap Sandhu
Chicago, Illinois, United States
$47k-$79k/yr OnsiteFull Time
Doctorate-level academic knowledge, typically <4 years postdoctoral training, strong written and oral English, knowledge/interest in rehabilitation and biomedical/clinical principles, grant writing and publication experience.
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