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Senior Engineer Jobs in Troy, IL (NOW HIRING)

Senior Engineer

Saint Louis, MO · On-site

$101K - $139K/yr

Senior level engineering professional providing technical direction required for production and completion of both routine and unique or complex projects. * Responsible for conceptualizing the ...

Senior Engineer, Platform Services

Saint Louis, MO · On-site

$101K - $139K/yr

The Sr. Engineer, Platform Services is a senior-level individual contributor responsible for building, automating, and evolving the shared engineering platforms that enable secure, scalable, and ...

Senior Engineer, Platform Services

Saint Louis, MO · On-site

$101K - $139K/yr

The Sr. Engineer, Platform Services is a senior-level individual contributor responsible for building, automating, and evolving the shared engineering platforms that enable secure, scalable, and ...

Sr. Engineer - Oil & Gas

Saint Louis, MO · On-site

$101K - $139K/yr

Farnsworth Group is seeking a Sr. Engineer - Oil & Gas in the posting location below. In this role, you will be working with clients in the oil and natural gas industry on a wide variety of projects ...

Sr. Network QA Engineer

Edwardsville, IL · On-site

$97K - $133K/yr

Job Summary : IS3 Solutions is seeking a Senior Network QA Engineer with expertise in enterprise network security and quality assurance. The role involves overseeing and reviewing device ...

Senior Technology Engineer

Saint Louis, MO · On-site

$101K - $139K/yr

IMEG is seeking a Senior Technology Engineer to join our Technology team in St. Louis, Missouri . In this role, you will lead the design, analysis, and implementation oversight of low-voltage ...

Senior Technology Engineer

Saint Louis, MO · On-site

$101K - $139K/yr

IMEG is seeking a Senior Technology Engineer to join our Technology team in St. Louis, Missouri . In this role, you will lead the design, analysis, and implementation oversight of low-voltage ...

Sr AWS Engineer

Saint Louis, MO · On-site

$101K - $139K/yr

I have an opportunity for a "Sr AWS Engineer" - (St Louis, MO - Remote). and I am looking for a candidate who can join Immediately if you are interested, reply to me with your updated resume or if ...

Sr. Elastic Engineer

Scott Air Force Base, IL · On-site

$100K - $138K/yr

ECS is seeking a Sr. Elastic Engineer to work in our Scott AFB, IL office. Are you passionate about building and scaling Elastic environments and eager to make an immediate technical impact? Join ECS ...

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Senior Engineer information

See Troy, IL salary details

$55.4K

$117.9K

$170.9K

How much do senior engineer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for senior engineer in Troy, IL is $117,879.00, according to ZipRecruiter salary data. Most workers in this role earn between $97,300.00 and $133,700.00 per year, depending on experience, location, and employer.

How does a senior engineer typically mentor junior team members, and what impact does this have on the team's success?

Senior Engineers often play a key role in mentoring junior developers by providing guidance on technical challenges, reviewing code, and sharing best practices. This mentorship helps foster a collaborative environment where less-experienced team members can develop their skills more rapidly. As a result, the entire team benefits from improved code quality, faster problem-solving, and a culture of continuous learning. Senior Engineers also help set standards and encourage professional growth, which contributes to the overall success and cohesion of the engineering team.

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

To thrive as a Senior Engineer, you need advanced technical expertise in your engineering discipline, a relevant degree, and several years of industry experience. Familiarity with project management software, CAD tools, and compliance with engineering standards or certifications like PE (Professional Engineer) is typically required. Critical thinking, leadership, and effective communication are essential soft skills for mentoring teams and managing complex projects. These skills and qualities ensure successful project delivery, innovation, and strong team performance within engineering environments.

What do senior engineers do?

Senior engineers are experienced professionals responsible for designing, developing, and overseeing complex technical projects within their field. They often lead teams, review work for quality, and ensure projects meet technical standards and deadlines, utilizing skills in problem-solving, project management, and technical tools. Their role may also include mentoring junior staff and collaborating with other departments to achieve organizational goals.

What is a senior engineer?

Senior engineers develop and design software programs and applications, but are designated senior because they have more extensive knowledge and years of experience than other engineers on their team. As a senior engineer, you work closely with company managers to ensure the software is created to the required specifications and must troubleshoot issues with applications when they arise. Most senior engineers have mastered a specific set of programming languages, databases, and operating systems.

What is the difference between Senior Engineer vs Mechanical Engineer?

AspectSenior EngineerMechanical Engineer
Required CredentialsBachelor's degree in engineering; often a master's; professional engineering license (PE) preferredBachelor's degree in mechanical engineering; PE license optional but advantageous
Work EnvironmentDesign, development, project management; leadership rolesDesign, analysis, testing, manufacturing
Industry UsageUsed across engineering sectors for experienced professionalsEntry to mid-level engineering roles in manufacturing, automotive, aerospace

Senior Engineers typically have more experience, leadership responsibilities, and advanced credentials compared to Mechanical Engineers. While Mechanical Engineers focus on design and analysis, Senior Engineers often oversee projects and mentor teams, making them suitable for higher-level roles within engineering teams.

What is a senior engineer?

A Senior Engineer is an experienced professional responsible for designing, developing, and overseeing complex engineering projects. They often lead teams, mentor junior engineers, and ensure that technical solutions meet organizational goals and industry standards. Senior Engineers are typically experts in their field, possessing advanced problem-solving skills and a deep understanding of relevant technologies and methodologies. Their role also often involves collaborating across departments, managing timelines, and contributing to strategic planning.

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

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

What cities near Troy, IL are hiring for Senior Engineer jobs?

Cities near Troy, IL with the most Senior Engineer job openings:

Senior Engineer

TERRACON

Saint Louis, MO • On-site

$101K - $139K/yr

Full-time

Re-posted 29 days ago


Terracon rating

7.5

Company rating: 7.5 out of 10

Based on 119 frontline employees who took The Breakroom Quiz

49th of 72 rated business consultants


Job description

Provide engineering and consulting services for a broad array of projects and clients. This may include performing and/or leading field investigations, engineering analysis, calculations, and recommendations, design and development of plans and specifications, observation and inspection, and the writing, preparation, and review of related reports for the services provided. Review drawings and construction to assure compliance with plans and specifications. Prepare proposals and cost estimates, track and evaluate project progress, budgets, and recommend changes. Research and resolve design and construction problems. Assign, review, and evaluate laboratory or field data for inclusion in reports. Apply sound engineering principles and be able to communicate complex engineering issues and concepts to technical and non-technical clients and project teams. Services may be provided for existing or proposed projects in a variety of sectors, including for example public works, transportation, commercial, communications, energy, and industrial.
  • Bachelor's degree in Engineering.
  • Minimum 8-11 years' experience.
  • Master's degree in Engineering preferred.
  • A valid driver's license with acceptable violation history may be required.
  • Required Qualifications:
  • Terracon Authorized Project Reviewer status required.
  • Lead safety efforts for team and ensure team follows safety rules and guidelines. Responsible for creating and modeling a safe work environment; demonstrating safety practices. Promote pre-task planning for all projects.
  • Responsible for continuous quality monitoring and improvement on projects. Monitor and promote quality standards and practices.
  • Responsible for providing consistent quality standards on project and proposal delivery.
  • Develop understanding and be aware of project-related risk and how to protect the Company. Be familiar with company risk policies.
  • Senior level engineering professional providing technical direction required for production and completion of both routine and unique or complex projects.
  • Responsible for conceptualizing the initial design and/or investigative approach for a major phase of a large project or have overall responsibility for the engineering work on a project of moderate scope.
  • Plan, schedule, conduct, and/or coordinates engineering work involving conventional engineering practices but may include a variety of complex features such as conflicting design requirements.
  • Provide review of projects requiring complex and innovative investigation techniques and supervise the analysis and formulation of recommendations in written reports to clients; provides technical review of reports.
  • Lead technical training and make informed decisions based upon state of the art technology issues.
  • Provide leadership of marketing, sales and business development.
  • Supervise less experienced engineers or technical support personnel on projects.
  • Serve as a Terracon Authorized Project Reviewer.

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