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Assistant Engineer Jobs in Decatur, IL (NOW HIRING)

MasTec Inc

Assistant Project Manager

Decatur, IL

Assistant Project Manager Summary: Assist in the management of multiple projects while providing ... Degree in Engineering; * Construction Management with 1-2 years of experience with a commercial and ...

MasTec Inc

Assistant Project Manager

Decatur, IL

Assistant Project Manager Summary: Assist in the management of multiple projects while providing ... Degree in Engineering; * Construction Management with 1-2 years of experience with a commercial and ...

MasTec Inc

Assistant Project Manager

Decatur, IL

Assistant Project Manager Summary: Assist in the management of multiple projects while providing ... Degree in Engineering; * Construction Management with 1-2 years of experience with a commercial and ...

MasTec Inc

Assistant Project Manager

Decatur, IL

Assistant Project Manager Summary: Assist in the management of multiple projects while providing ... Degree in Engineering; * Construction Management with 1-2 years of experience with a commercial and ...

MasTec Inc

Assistant Project Manager

Decatur, IL · On-site

Assistant Project Manager Summary: Assist in the management of multiple projects while providing ... Degree in Engineering; * Construction Management with 1-2 years of experience with a commercial and ...

ADM

Ethanol Support Engineer - Decatur, IL

Decatur, IL · On-site

$90K - $144K/yr

Assist with ethanol plant support requests, including plant visits, troubleshooting plant problems ... engineering, or related disciplines).Industry Expertise: 10+ years of hands-on experience in ...

Marvin

Director Facilities Engineering

Decatur, IL · On-site

$161K - $215K/yr

... assist with your move. Marvin offers an extensive relocation benefit package that included the ... Professional Engineer (PE) license preferred. * ICC Plans Examiner or Building Inspector ...

New

MasTec Inc

Project Engineer - High Voltage

Decatur, IL · On-site

$75K - $870K/yr

Overview William Charles Electric, a MasTec Company, is hiring a Project Engineer that will work with the project team to support all documentation as well as QA/QC activities required under the ...

MasTec Inc

Project Engineer - High Voltage

Decatur, IL · On-site

$75K - $870K/yr

Overview William Charles Electric, a MasTec Company, is hiring a Project Engineer that will work with the project team to support all documentation as well as QA/QC activities required under the ...

MasTec Inc

Project Engineer - High Voltage

Decatur, IL · On-site

$75K - $870K/yr

Overview William Charles Electric, a MasTec Company, is hiring a Project Engineer that will work with the project team to support all documentation as well as QA/QC activities required under the ...

MasTec Inc

Project Engineer - High Voltage

Decatur, IL · On-site

$75K - $870K/yr

Overview William Charles Electric, a MasTec Company, is hiring a Project Engineer that will work with the project team to support all documentation as well as QA/QC activities required under the ...

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All JobsEngineer JobsAssistant Engineer JobsAssistant Engineer Jobs in Decatur, IL

Assistant Engineer information

See Decatur, IL salary details

$32K

$86.1K

$130.5K

How much do assistant engineer jobs pay per year?

As of Jul 17, 2026, the average yearly pay for assistant engineer in Decatur, IL is $86,089.00, according to ZipRecruiter salary data. Most workers in this role earn between $68,400.00 and $101,400.00 per year, depending on experience, location, and employer.

What engineering jobs pay $500,000?

Senior engineering roles such as petroleum engineers, aerospace engineers, and engineering managers can reach or exceed $500,000 annually, especially with experience, bonuses, and stock options. High-paying positions often require advanced degrees, specialized skills, and leadership responsibilities in industries like oil and gas, aerospace, or technology.

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 an Assistant Engineer?

An assistant engineer works alongside a senior engineer throughout a project. The job is often used to gain work experience by recent college graduates at the beginning of their career. Your duties vary, depending on the type of engineering and industry you work in, but may include managing equipment, performing inspections, reviewing blueprints, and coordinating among departments. Typical qualifications for an assistant engineer position include at least an associate or bachelor’s degree in an engineering field, strong communication skills, and the ability to carefully follow directions.

What does an assistant engineer do?

An assistant engineer supports senior engineers by performing technical tasks such as designing, testing, and maintaining systems or equipment. They often handle documentation, data analysis, and troubleshooting, and typically need relevant technical skills and certifications to perform their duties effectively.

What engineers make $200,000 a year?

Senior engineers in fields such as petroleum, software, aerospace, and data engineering often earn $200,000 or more annually, especially with extensive experience, specialized skills, and advanced certifications. High-paying roles typically require leadership responsibilities, advanced technical expertise, and work in high-demand industries or companies.

How much is the salary of an assistant engineer?

The salary of an assistant engineer typically ranges from $50,000 to $70,000 annually, depending on experience, location, and industry. Entry-level positions may start lower, while experienced assistants or those with specialized skills can earn higher wages.

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 are Assistant Engineers?

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 Decatur, IL? The most popular types of Engineer jobs in Decatur, IL are:
What cities near Decatur, IL are hiring for Assistant Engineer jobs? Cities near Decatur, IL with the most Assistant Engineer job openings:
Assistant Engineer jobs near you
Infographic showing various Assistant Engineer job openings in Decatur, IL as of July 2026, with employment types broken down into 1% As Needed, 73% Full Time, 22% Part Time, 1% Temporary, and 3% Contract. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $86,089 per year, or $41.4 per hour.
Assistant Project Manager

Assistant Project Manager

MasTec Inc

Decatur, IL

Full-time

Posted 15 days ago

MasTec rating

7.4

Company rating: 7.4 out of 10

Based on 153 frontline employees who took The Breakroom Quiz

36th of 80 rated construction

Job description

Overview

Job Position Title: Assistant Project Manager

Job Description Summary:

 Assist in the management of multiple projects while providing advice to the Project Manager. Help coordinate projects, schedules, and track the progress of projects and report their results.


Responsibilities
Essential Duties and Responsibilities:
  • Help oversee a construction project from start to finish
  • Manage day-to-day project activities including the POD and time sheets
  • Assist in project planning, budgeting, and identification of resources needed
  • Work with project manager to ensure understanding of all project activities, schedules and deliverables
  • Help to manage client responsibilities and expectations
  • Work with management to develop the objectives/goals of each member and assign individual responsibilities
  • Ensure that construction activities move according to pre-determined schedule
  • Monitor the progress of the construction activities on a regular basis
  • Effective time management and logical decision-making ability

Qualifications
Skills & Abilities:
  • Ability to multitask and maintain effectiveness with multiple priorities
  • Professional demeanor; remain calm and emotionally controlled under pressure
  • Ability to follow directions and take initiative when required
  • Excellent communication, accounting and organizational skills
  • Familiar with Microsoft Office and Timberline
  • A basic to good understanding of construction means and methods
  • Basic understanding/proficiency with spreadsheets, Email and other software used in the construction
  • Completed OSHA ET&D Training
Physical Demands:
  • Field visits to the job site
Education and/or Work Experience:

 At least one of the following:

  • Degree in Engineering;
  • Construction Management with 1-2 years of experience with a commercial and/or Industrial general contractor;
  • 2+ years of directly related experience with no degree
Qualifications:Skills & Abilities:
  • Ability to multitask and maintain effectiveness with multiple priorities
  • Professional demeanor; remain calm and emotionally controlled under pressure
  • Ability to follow directions and take initiative when required
  • Excellent communication, accounting and organizational skills
  • Familiar with Microsoft Office and Timberline
  • A basic to good understanding of construction means and methods
  • Basic understanding/proficiency with spreadsheets, Email and other software used in the construction
  • Completed OSHA ET&D Training
Physical Demands:
  • Field visits to the job site
Education and/or Work Experience:

 At least one of the following:

  • Degree in Engineering;
  • Construction Management with 1-2 years of experience with a commercial and/or Industrial general contractor;
  • 2+ years of directly related experience with no degree
Education:UNAVAILABLEEmployment Type: FULL_TIME

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