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Assistant Engineer Jobs in Carol Stream, IL (NOW HIRING)

CNA

Senior Software Engineer, AI/ML

Chicago, IL · On-site

$72K - $141K/yr

At CNA, we strive to create a culture in which people know they matter and are part of something ... We are looking for a highly skilled Senior Python AI Developer with deep expertise in building ...

AprilAire

Sales Engineer--HVAC

Chicago, IL · On-site

$120K - $125K/yr

Listen to customer requests and prepare information for quoting through Sales Application Engineers. * Assist with departmental functions such as resolving service issues and supporting account ...

AprilAire

Sales Engineer--HVAC

Chicago, IL

$120K - $125K/yr

Listen to customer requests and prepare information for quoting through Sales Application Engineers. * Assist with departmental functions such as resolving service issues and supporting account ...

CNA

Senior Software Engineer - AI/ML

Chicago, IL · On-site

$126K - $166K/yr

At CNA, we strive to create a culture in which people know they matter and are part of something ... Preferred experience with background as SDET or deep experience with Testing tools like Playwright ...

Prime Healthcare

Assistant Chief Engineer

Chicago, IL · On-site

$45 - $60.56/hr

The Assistant Chief Engineer is responsible for the safe and proper operation of the power plant and associated control structures. They operate, maintain, and adjust boilers, furnaces, engines ...

DriSteem

Sales Engineer--HVAC

Chicago, IL · On-site

$120K - $125K/yr

Listen to customer requests and prepare information for quoting through Sales Application Engineers. * Assist with departmental functions such as resolving service issues and supporting account ...

DriSteem

Sales Engineer--HVAC

Chicago, IL · On-site

$120K - $125K/yr

Listen to customer requests and prepare information for quoting through Sales Application Engineers. * Assist with departmental functions such as resolving service issues and supporting account ...

Cna

Senior Software Engineer - AI/ML

Chicago, IL · Hybrid

$126K - $166K/yr

At CNA, we strive to create a culture in which people know they matter and are part of something ... Preferred experience with background as SDET or deep experience with Testing tools like Playwright ...

MedSpace Services

Assistant Chief Engineer

Chicago, IL

$45 - $60.56/hr

Responsibilities The Assistant Chief Engineer is responsible for the safe and proper operation of the power plant and associated control structures. They operate, maintain, and adjust boilers ...

MedSpace Services

Assistant Chief Engineer

Chicago, IL · On-site

$45 - $60.56/hr

Responsibilities The Assistant Chief Engineer is responsible for the safe and proper operation of the power plant and associated control structures. They operate, maintain, and adjust boilers ...

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Showing results 41-60

All JobsEngineer JobsAssistant Engineer JobsAssistant Engineer Jobs in Carol Stream, IL

Assistant Engineer information

See Carol Stream, IL salary details

$34.1K

$91.8K

$139.1K

How much do assistant engineer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for assistant engineer in Carol Stream, IL is $91,799.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,900.00 and $108,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an assistant engineer, and why are they important?

To thrive as an Assistant Engineer, you need a solid grounding in engineering principles, analytical thinking, and a relevant bachelor's degree in engineering or a related field. Familiarity with technical tools such as CAD software, project management systems, and industry-specific standards or certifications (like EIT or FE) is often required. Strong problem-solving skills, teamwork, and effective communication help you collaborate on complex projects and interact with stakeholders. These skills and qualifications are essential for delivering accurate technical support, ensuring project efficiency, and contributing to successful engineering outcomes.

How does an assistant engineer typically collaborate with senior engineers and other team members on projects?

Assistant Engineers work closely with senior engineers, designers, and other technical staff by supporting project planning, conducting site visits, and preparing technical documentation. They often assist in problem-solving sessions and help implement design solutions under supervision. Regular communication and teamwork are essential, as Assistant Engineers frequently coordinate tasks, share updates, and seek feedback to ensure project objectives are met efficiently. This collaborative environment provides valuable learning opportunities and helps build a strong foundation for career advancement.

What is the difference between Assistant Engineer vs Junior Engineer?

AspectAssistant EngineerJunior Engineer
Required CredentialsBachelor's degree in engineering or related field, often with some certificationsBachelor's degree in engineering, entry-level certification may be preferred
Work EnvironmentSupports senior engineers, involved in project planning and executionPerforms basic engineering tasks, supervised by senior staff
Employer & Industry UsageCommon in construction, manufacturing, civil, and mechanical sectorsUsed interchangeably in similar industries, often as entry-level role

Assistant Engineers typically have more responsibilities in supporting project management and planning, while Junior Engineers focus on executing specific technical tasks under supervision. Both roles require similar educational backgrounds, but Assistant Engineers often have additional certifications or experience. The roles are used across various engineering sectors and serve as stepping stones for career advancement.

What is an assistant engineer?

Assistant Engineers are entry-level professionals who support senior engineers in the planning, design, development, and maintenance of projects across various engineering fields such as civil, mechanical, electrical, or software. Their responsibilities often include assisting with technical tasks, preparing reports, conducting research, and ensuring compliance with project specifications and safety standards. Assistant Engineers gain practical experience and skills under the supervision of more experienced engineers, which helps them advance in their engineering careers.
More about Assistant Engineer jobs
What are the most commonly searched types of Engineer jobs in Carol Stream, IL? The most popular types of Engineer jobs in Carol Stream, IL are:
What are popular job titles related to Assistant Engineer jobs in Carol Stream, IL? For Assistant Engineer jobs in Carol Stream, IL, the most frequently searched job titles are:
What cities near Carol Stream, IL are hiring for Assistant Engineer jobs? Cities near Carol Stream, IL with the most Assistant Engineer job openings:
Assistant Engineer jobs near you

Senior Software Engineer, AI/ML

CNA

Chicago, IL • On-site

$72K - $141K/yr

Full-time

Re-posted 26 days ago

Job description

You have a clear vision of where your career can go. And we have the leadership to help you get there. At CNA, we strive to create a culture in which people know they matter and are part of something important, ensuring the abilities of all employees are used to their fullest potential.
We are looking for a highly skilled Senior Python AI Developer with deep expertise in building intelligent agents using Google Vertex AI, particularly with Gemini or OpenAI models. The ideal candidate has a strong foundation in Large Language Models and understands how they work under the hood, combined with experience in evaluating model performance through structured testing methodologies. This role requires proficiency in the technical aspects of agent development while adhering to best practices in prompt engineering, context filtering, and security-aware prompting. The candidate should also have hands-on experience with modern agent frameworks and observability tools, ensuring robust, scalable, and reliable AI solutions.
JOB DESCRIPTION:
Essential Duties & Responsibilities:
Performs a combination of duties in accordance with departmental guidelines:
  • Evaluates defined client area requirements and processes (e.g., new enhancements or maintenance) and detailed designs and develops moderate to complex application program solutions.
  • Ensures quality of application solutions by performing code review with peers, creating documentation, implementing code, verifying program logic, performing defect root cause analysis, and completing unit and integration testing. Participates in systems testing with other IT staff.
  • Assists with the high level design of solutions. Consults with the client area to analyze system requirements and capabilities, identify associated risks, and resolve problems. May act as a liaison between clients and applications area.
  • Researches and evaluates new and/or alternative solutions, and recommends the most efficient and cost effective solution for the systems/program design and develops system specifications and procedures. May include integrating vendor applications and consulting resources into existing applications and resources.
  • In conjunction with operations area technical staff, supports the implementation of the application into production and testing environments. May confer with technical personnel to identify and resolve issues.

Reporting Relationship: Typically Manager or above
Skills, Knowledge and Abilities
Key Required Skills & Experience:
  • Senior-level proficiency in Python, with experience in AI/ML development

  • Strong understanding of Large Language Models (LLMs) and their operational mechanics

  • Experience developing AI Agents on Google Vertex AI using Gemini or OpenAI

  • Expertise in Prompt Engineering Best Practices

Hands-on experience with:
  • Google Agent Development Kit

  • LangChain and LangGraph

Knowledge of Context Filtering and Prompting Security Best Practices
Familiarity with observability and debugging tools:
  • LangSmith

  • LangFuse

  • Phoenix or Arize

Experience with Eval AI Testing and model evaluation workflows
Education and Experience
1. Bachelor's degree in Computer Science, or related discipline, or equivalent work experience.
2. Typically a minimum four years of application program development experience.
3. Applicable certificates preferred.
#LI-MR1
#LI-Hybrid
In certain jurisdictions, CNA is legally required to include a reasonable estimate of the compensation for this role. In District of Columbia, California, Colorado, Connecticut, Illinois, Maryland, Massachusetts, New York and Washington, the national base pay range for this job level is $72,000 to $141,000 annually. Salary determinations are based on various factors, including but not limited to, relevant work experience, skills, certifications and location. CNA offers a comprehensive and competitive benefits package to help our employees - and their family members - achieve their physical, financial, emotional and social wellbeing goals. For a detailed look at CNA's benefits, please visit cnabenefits.com.
CNA utilizes AI-enabled technology during the recruiting process. For more information, please visit our careers page.
CNA is committed to providing reasonable accommodations to qualified individuals with disabilities in the recruitment process. To request an accommodation, please contact leaveadministration@cna.com

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