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Senior Software Engineer Jobs in Peoria, IL (NOW HIRING)

Belcan, LLC

Software Engineer

Mossville, IL · On-site

$58.44/hr

Software Engineer Location: Mossville, IL Zip Code: 61552 Duration: 12 Months Pay Rate: $58.44/hr. Keyword's: #Mossvillejobs; #SoftwareEngineerjobs; #INDSUB Start Date: Immediate We provide a ...

Belcan Corporation

Software Engineer

Mossville, IL · On-site

$69 - $92/hr

Software Engineer Location: Mossville, IL Zip Code: 61552 Duration: 12 Months Pay Rate: $58.44/hr. Keyword's: #Mossvillejobs; #SoftwareEngineerjobs; #INDSUB Start Date: Immediate We provide a ...

Belcan

Software Engineer

Mossville, IL · On-site

$58.44/hr

Software Engineer Location: Mossville, IL Zip Code: 61552 Duration: 12 Months Pay Rate: $58.44/hr. Keyword's: #Mossvillejobs; #SoftwareEngineerjobs; #INDSUB Start Date: Immediate We provide a ...

Belcan

Software Engineer

Mossville, IL · On-site

$58.44/hr

Software Engineer Location: Mossville, IL Zip Code: 61552 Duration: 12 Months Pay Rate: $58.44/hr. Keyword's: #Mossvillejobs; #SoftwareEngineerjobs ; #INDSUB Start Date: Immediate We provide a ...

Tech Tammina LLC

Embedded Software Engineer

Mossville, IL · On-site

$95K - $126K/yr

Embedded Software Engineer 4 location: Mossville, IL (Onsite) Duration: 6-month contract Core ... As a senior leader, this individual will shape the long-term platform strategy and technical ...

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All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in Peoria, IL

Senior Software Engineer information

See Peoria, IL salary details

$74.1K

$140.7K

$188.5K

How much do senior software engineer jobs pay per year?

As of Aug 30, 2026, the average yearly pay for senior software engineer in Peoria, IL is $140,654.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,200.00 and $158,500.00 per year, depending on experience, location, and employer.

What is a senior software engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

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

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges senior software engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

What is the difference between Senior Software Engineer vs Software Developer?

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

What does a senior software engineer do?

A senior software engineer designs, develops, and maintains software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and collaborate with cross-functional teams to ensure quality and efficiency. Proficiency in programming languages, problem-solving skills, and experience with development tools are essential for this role.
More about Senior Software Engineer jobs

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

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

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

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

Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in Peoria, IL as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $140,654 per year, or $67.6 per hour.

Sr. Embedded Software Engineer

Diversified Services Network, Inc.

Mossville, IL • On-site

$90K - $118K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 11 days ago

Job description

Diversified Services Network, Inc. (DSN) is seeking a full-time Senior C++ Software Engineer (Autonomous Systems) to join our team in Mossville, IL OR Pittsburgh, PA OR Sanford, North Carolina OR Cary, North Carolina OR Clayton, North Carolina OR San Francisco, CA! We offer full benefits, PTO, 401k, and more! If you're looking to grow your technical career within an extremely reputable, stable Fortune 500 company - let's talk!

We are seeking a Senior Software Engineer to play a key technical leadership role on autonomy software teams developing perception, planning, control, and platform capabilities for autonomous systems. This position focuses on architecting, implementing, and scaling production-quality autonomy software while mentoring engineers and driving technical direction across projects. The ideal candidate brings deep hands-on experience in complex software systems, thrives in crossfunctional autonomy environments, and is capable of translating ambiguous requirements into robust, field-ready solutions.

Requirements

 JOB RESPONSIBILITIES:                 

  • Lead the design, development, and ownership of major autonomy software components across perception, localization, planning, control, or platform layers
  • Define and influence software architecture for scalable, reliable, and maintainable autonomy systems
  • Translate algorithmic concepts and research prototypes into production-grade, real-time software
  • Serve as a technical leader within the team, setting coding standards, best practices, and design patterns
  • Mentor and guide junior and mid-level engineers through design reviews, code reviews, and technical coaching
  • Collaborate closely with robotics, controls, AI/ML, simulation, systems, and safety teams to deliver end-to-end autonomy capabilities
  • Drive integration of autonomy software with sensors, actuators, compute platforms, and vehicle networks (e.g., CAN, Ethernet)
  • Lead debugging and root-cause analysis for complex issues observed in simulation, HIL, or field deployments
  • Ensure software quality through automated testing, CI/CD pipelines, performance optimization, and documentation
  • Contribute to technical roadmaps, risk assessments, and long-term platform strategy

EDUCATION & EXPERIENCE REQUIRED:

  • Bachelor's Degree in Computer Science, Software Engineering, Robotics, or related field AND 5+ years' of professional software development experience with a strong focus on autonomy, robotics, or real-time systems.

REQUIRED SKILLS:

  • Strong expertise in C++ (required); proficiency in Python
  • Proven experience designing and maintaining large-scale, production software systems
  • Deep understanding of Linux-based development, multithreading, memory management, and performance optimization

SOFT SKILLS REQUIRED:

  • Strong code review, design documentation, and technical communication skills
  • Working within a large team that is spread out across the globe

Benefits

  • 401(k)
  • Dental insurance
  • Vision Insurance
  • Disability insurance
  • Employee assistance program
  • Health insurance
  • Health savings account
  • Life insurance
  • Paid time off
  • Paid Holidays

Please follow the link to our website for a list of job openings in Engineering, IT, Project Management, and more! https://www.dsnworldwide.com

Salary expectations: 110,000-121,000 per annual

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