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Senior Engineer Jobs in Decatur, IL (NOW HIRING)

Intellectt INC

Electrical Engineer

Decatur, IL · On-site

Bachelor's or Master's degree in Electrical Engineering Thanks & Regards, Ajay Bhanu Senior Recruiter Intellectt Inc Bhanu@intellectt.com Direct: 732 784 4384 Desk number: 732 412 6999- Ext: 159

AllSTEM Connections

Network Engineer

Decatur, IL · On-site

$176K - $187K/yr

Job Title: Senior Network Infrastructure Architect (SDN & SASE Strategy) Role Overview We are ... This is a high-impact role for an engineer who thrives at the intersection of network strategy and ...

AllSTEM Connections

Network Engineer

Decatur, IL · On-site

$176K - $187K/yr

Senior Network Infrastructure Architect (SASE & SD-WAN) Role Overview We are seeking a Senior ... This is a hands-on, high-impact role for an engineer who is ready to move beyond traditional ...

US Navy

Nuclear Engineer

Macon, IL

$95K - $114K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Lincoln, IL

$96K - $115K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Assumption, IL

$94K - $113K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Decatur, IL

$95K - $114K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Mansfield, IL

$92K - $110K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Argenta, IL

$95K - $113K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Illiopolis, IL

$95K - $114K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

US Navy

Nuclear Engineer

Maroa, IL

$93K - $111K/yr

... with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication. Work Environment Work mainly at Naval ...

Goli Tech

Sr. Seeburger Integration Engineer

Decatur, IL · On-site

$100K - $135K/yr

Working on preparing EDI implementation guidelines and Mapping specifications working along with Business and also be able to reverse engineer. * Should be able to design enhance and build new ...

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All JobsSenior Engineer JobsSenior Engineer Jobs in Decatur, IL

Senior Engineer information

See Decatur, IL salary details

$57.7K

$122.8K

$178K

How much do senior engineer jobs pay per year?

As of Jun 25, 2026, the average yearly pay for senior engineer in Decatur, IL is $122,756.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,400.00 and $139,200.00 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 does a senior engineer do?

A senior engineer designs, develops, and tests complex systems or products within their technical field, often leading projects and mentoring junior staff. They utilize advanced technical skills, problem-solving abilities, and may hold certifications relevant to their industry. Their role involves ensuring quality, efficiency, and adherence to project deadlines in a collaborative environment.

What engineers make $300,000 a year?

Senior engineers in fields such as software, electrical, and petroleum engineering can earn $300,000 or more annually, especially with extensive experience, specialized skills, and leadership roles. High compensation often involves working in competitive industries, advanced certifications, or managerial positions that oversee large projects or teams.

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 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 engineers make $500,000?

Senior engineers in fields such as software, electrical, and aerospace engineering can earn $500,000 or more annually, especially with extensive experience, specialized skills, and leadership roles. High compensation often includes bonuses, stock options, or profit sharing, particularly in technology companies or industries with high demand for technical expertise.

Can you make $500,000 as a civil engineer?

Senior engineers in civil engineering can potentially earn $500,000 annually, especially with extensive experience, specialized skills, management roles, or working in high-paying industries or regions. However, such salaries are typically achieved through senior leadership positions, consulting, or project management over time.

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.
More about Senior 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 Senior Engineer jobs? Cities near Decatur, IL with the most Senior Engineer job openings:
Senior Engineer jobs near you
Infographic showing various Senior Engineer job openings in Decatur, IL as of June 2026, with employment types broken down into 91% Full Time, 6% Part Time, 1% Temporary, and 2% Contract. Highlights an 88% Physical, 5% Hybrid, and 7% Remote job distribution, with an average salary of $122,756 per year, or $59 per hour.

Senior VoIP Engineer - Level III (BAMC)

A1FED Inc

Texas, IL

Full-time

Posted 2 days ago

Job description

Citizenship Requirements: US Citizenship or Permanent Resident (Green Card Holder)

Location: San Antonio, TX (On-site)

Federal Background Investigation Required: Tier 3 (T3)

IT Security Designation: ADP/IT II

Relevant Experience: Six (6) years of progressive experience demonstrating the required proficiency.

Minimum Education: Bachelor's degree and/or equivalent.

IA Technical/Management Designation: IAT II and CE
  • Certifications Required (at least one of the following IAT II certifications is required):
    • CCNA - Security
    • SSCP
    • CySA+
    • Security+ CE
    • GICSP
    • GSEC
  • Preferred Certifications (at least one of the following):
    • CCNP Collaboration
    • CCIE Collaboration
    • CCNA Voice
    • CCVP

Role Summary:

The Senior VoIP Engineer provides Tier III/IV level support for the Unified Communications (UC) and VoIP infrastructure.  This role is responsible for the design, deployment, configuration, maintenance, and troubleshooting of enterprise-class VoIP systems providing telephony, automated call trees, overhead paging, 911 services, and SIP Trunk integration with other critical systems across multiple buildings composing a large Medical Treatment Facility (MTF).  The engineer ensures all voice communications systems adhere to Department of Defense (DoD) Security Technical Implementation Guides (STIGS) and maintain high availability to support critical communication requirements in a Level 1 trauma center serving the city of San Antonio, and Military patients and families.


Specific Duties:

System Engineering & Design: Architect and engineer enterprise VoIP and Unified Communications solutions (e.g., Cisco Unified Communication Manager (CUCM), Cisco Unified Contact Center Express (UCCX), voice gateways, analog gateways for the MTF phone system.  Design complex dial plans, partitions, Calling Search Spaces (CSS), translation patterns, and route patterns.


Implementation and Migration: Lead site surveys, capacity planning, end user requirement analysis, and the physical/logical deployment of VoIP hardware and software.  Migrate legacy TDM/PBX systems to modern VoIP architecture.


Operations and Maintenance: Perform routine patching, upgrades, and configuration modifications on Cisco Unified Border Element (CUBE), SIP Trunks, H.323/MGCP Gateways, session border controllers (SBCssss), Survivable Remote Site Telephony (SRST), and network configurations (QoS, trunking, Vlans, interfaces, 802.1X) to ensure continuous service availability. Configure, and optimize complex dial plans, partitions, Calling Search Spaces (CSS), translation patterns, and route patterns. Manage DID ranges, E.164 global dial plans, and emergency routing protocols.  Maintain device pools, region parameters, and codec preferences.


Troubleshoot and Support: Serve as a primary escalation point for complex voice network issues.  Analyze packet captures and SIP signaling to resolve jitter, latency, and call routing failures.  Analyze performance on the network for non-VoIP related traffic as required.


Security & Compliance:  Plan and execute major system upgrades, patches, firmware updates, and database replication health checks across the publisher and subscriber nodes.  Implement DoD STIGSs for all voice network appliances and network equipment.  Support Risk Management Framework (RMF) accreditation efforts by providing necessary diagrams and artifacts.


Documentation & Mentorship: Maintain accurate network topology diagrams, standard operating procedures (SOPs), and dial plan documentation.  Make available to other VoIP support staff and mentor less experienced staff to build a strong team.


About Us: A1FED is a leading provider of financial consulting, data analytics, cloud, agile software development, cyber security, and disaster recovery solutions. We support these core capabilities with full lifecycle IT services and training-to help our customers meet critical goals for pivotal missions.
Employment Type: FULL_TIME

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