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Assistant Engineer Jobs in Troy, MO (NOW HIRING)

Horner & Shifrin

Engineer (Transportation)

O Fallon, MO · On-site

$65K - $91K/yr

Work as part of a team to complete general transportation engineering services for municipal, county and state agencies * Assist in the preparation of reports and feasibility studies * Responsible ...

HiFyve

Reliability Engineer

Wentzville, MO · On-site

$30 - $45/hr

HiFyve is hiring a Reliability Engineer in the Industrial Manufacturing industry in Wentzville, MO ... * Assist with equipment upgrades, reliability initiatives, and continuous improvement projects

Piston Automotive

Controls Engineer 3rd Shift

Wentzville, MO · On-site

$80K - $103K/yr

Analyze equipment requirements and assist in requisition of tools and spare parts * Identify and ... PLC Programming (2-4 years): Allen Bradley ControlLogix 5000 processors * Vision Systems ...

Piston Automotive

Controls Engineer 3rd Shift

Wentzville, MO · On-site

$80K - $103K/yr

Analyze equipment requirements and assist in requisition of tools and spare parts * Identify and ... PLC Programming (2-4 years): Allen Bradley ControlLogix 5000 processors * Vision Systems ...

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All JobsEngineer JobsAssistant Engineer JobsAssistant Engineer Jobs in Troy, MO

Assistant Engineer information

See Troy, MO salary details

$29.9K

$80.4K

$121.8K

How much do assistant engineer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for assistant engineer in Troy, MO is $80,405.00, according to ZipRecruiter salary data. Most workers in this role earn between $63,900.00 and $94,700.00 per year, depending on experience, location, and employer.

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.

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 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.

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.

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.
More about Assistant Engineer jobs

What are the most commonly searched types of Engineer jobs in Troy, MO?

The most popular types of Engineer jobs in Troy, MO are:

What cities near Troy, MO are hiring for Assistant Engineer jobs?

Cities near Troy, MO with the most Assistant Engineer job openings:

Assistant Engineer jobs near you

Licensed Professional Engineer (Civil Site Development)

Cochran

Wentzville, MO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 19 days ago

Job description

Cochran is a growing civil engineering firm with 7 Missouri offices, offering services in construction administration, materials testing, architectural and geotechnical engineering, and land surveying. Serving both public and private sectors, Cochran's expertise spans municipal, commercial, residential, transportation, water/wastewater, site development, retail, planning, and interior design. With 120+ professionals, the firm delivers tailored solutions backed by deep expertise and is guided by core values of teamwork, excellence, quality, and trust—ensuring principal involvement and outstanding service throughout every project.

Cochran's Wentzville, Missouri location, is looking for a Licensed Engineer to join our team.  

Position Summary:
We are seeking a motivated and detail-oriented Licensed Professional Engineer to support a wide range of civil engineering projects. This role is ideal for someone who is already licensed and has experience with civil site development. 

Key Responsibilities:

  • Assist in the planning, design, and delivery of civil engineering projects, including site development, roadway improvements, drainage systems, and utility infrastructure
  • Prepare design plans, technical specifications, and cost estimates
  • Perform engineering calculations, site layout, grading, and stormwater modeling
  • Support project managers with schedules, budgets, permitting, and agency coordination
  • Conduct site visits and assist with construction observation and documentation
  • Collaborate with internal teams and external stakeholders to ensure successful project outcomes
  • Mentor junior engineers and support staff as needed

Qualifications:

  • Bachelor's degree in Civil Engineering or a related field
  • PE license preferred or on track to obtain within 12 months
  • 7+ years of relevant civil engineering experience
  • Proficient in AutoCAD Civil 3D and Microsoft Office Suite
  • Strong written and verbal communication skills
  • Self-motivated with the ability to work both independently and in a team environment

Preferred Experience:

  • Familiarity with local, state, and federal design standards and permitting requirements
  • Experience working with municipalities, DOTs, or private developers
  • Knowledge of stormwater modeling software or other civil design tools

Benefits

  • Competitive salary and performance-based bonuses
  • 100% company paid Medical, Dental, Vision, Life, and Long-Term Disability insurance for employees, plus company deductible assistance
  • 401(k) with 4% company match
  • Generous PTO plan and 7 major holidays
  • Continuing education and professional development support

Apply