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Senior Software Developer Jobs in Collinsville, IL

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

We require Senior Software Engineers with a strong focus on AI-Native development. Proficiency in utilizing various Agentic coding tools to significantly amplify impact and accelerate implementations ...

Lead Software Developer

Saint Louis, MO · On-site +1

$112K - $141K/yr

The individual in this role is a senior member of the IT team who is able to understand the use of ... Software Engineering role. * 6+ years of programming experience in C# .NET. * Past experience ...

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

Position Description We are seeking a Senior Software Engineer who is passionate about building ... developer experience and the customer experience. • Design, develop, test, and deploy end-to-end ...

Senior Software Engineer

Saint Louis, MO

$119K - $157K/yr

Position Description We are seeking a Senior Software Engineer who is passionate about building ... developer experience and the customer experience. • Design, develop, test, and deploy end-to-end ...

Showing results 21-40

Senior Software Developer information

See Collinsville, IL salary details

$14

$57

$81

How much do senior software developer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for senior software developer in Collinsville, IL is $57.22, according to ZipRecruiter salary data. Most workers in this role earn between $48.56 and $64.18 per hour, depending on experience, location, and employer.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

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

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

What are the most commonly searched types of Software Developer jobs in Collinsville, IL?

The most popular types of Software Developer jobs in Collinsville, IL are:

What are popular job titles related to Senior Software Developer jobs in Collinsville, IL?

For Senior Software Developer jobs in Collinsville, IL, the most frequently searched job titles are:

What job categories do people searching Senior Software Developer jobs in Collinsville, IL look for?

The top searched job categories for Senior Software Developer jobs in Collinsville, IL are:

What cities near Collinsville, IL are hiring for Senior Software Developer jobs?

Cities near Collinsville, IL with the most Senior Software Developer job openings:

Infographic showing various Senior Software Developer job openings in Collinsville, IL as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $119,022 per year, or $57.2 per hour.

Software Developer (Mid Level or Senior), Autonomy and Mission Planning

Boeing

Berkeley, MO • On-site

$126K - $171K/yr

Full-time

Medical, Life, Retirement

Re-posted 17 days ago


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 612 frontline employees who took The Breakroom Quiz

33rd of 540 rated manufacturers


Job description

Software Developer (Mid Level or Senior), Autonomy and Mission Planning

Company:

The Boeing Company

The Boeing Company is currently seeking Software Engineer- Developer (Mid Level or Senior) to support our Phantom Works Advanced Mission Planning team located in Berkeley, MO. This position will focus on supporting the Boeing Defense, Space & Security (BDS) Software Engineering organization.

Phantom Works is an advanced research and development organization responsible for engaging customers through cutting-edge visual modeling and simulation; innovating cross-cutting concepts and technologies; prototyping solutions to extend current products and win new programs; and developing new businesses and entering new markets. The organization is seeking software engineers to perform software design and development for autonomous systems.

The selected team member enjoys working collaboratively with others, has a commitment to customer satisfaction and process improvement, and is successful working in a multi-contract/multi-program environment. He/she will support the development of solutions to a wide range of complex problems that require ingenuity and innovation. He/she should be adaptable to new development environments and eager to work with and learn new technologies.

Our teams are currently hiring for a broad range of experience levels including Mid Level or Senior Software Engineers.

Position Responsibilities:

  • Designs, develops, tests, and maintains non-embedded software throughout the end-to-end lifecycle that meets industry, customer, safety, and regulation standards.
  • Reviews, analyzes, and translates customer requirements into initial design of software products.
  • Lead junior engineers in software development
  • Perform use case development for software requirements
  • Perform software architecture trade studies and modifications to meet new requirements
  • Develop interface definitions
  • Perform unit and integration testing
  • Participate in peer reviews
  • Support system and flight testing
  • Create software documentation

Basic Qualifications (Required Skills/ Experience):

  • Bachelor's Degree in an engineering discipline experience or 13 years' related relevant work experience
  • Ability to obtain Secret US Security clearance (Post-Start)
  • 5+ years of Software Engineering experience
  • 3+ years of C++
  • 2+ years Autonomy and/or robotics software techniques
  • 2+ years of experience in real time software development experience
  • 3+ years of experience with Agile Software development process

Preferred Qualifications (Desired Skills/Experience):

  • Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science
  • Active Secret U.S. Security Clearance
  • Level 4: 9 or more years' related work experience or an equivalent combination of education and experience
  • Experience with Mission Systems architectures and Open Missions Systems (OMS) and/or Universal Command and Control Interface (UCI)
  • Familiar with Electromagnetic Warfare (EW) and/or Radar
  • Simulation development experience
  • Experience with Continuous integration practices
  • Usage of software development tools such as JIRA, GIT and Jenkins
  • Software testing experience

Travel: 10%

Drug Free Workplace:

Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

CodeVue Coding Challenge:

To be considered for this position you will be required to complete a technical assessment as part of the selection process. Failure to complete the assessment will remove you from consideration.

Pay & Benefits:

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary Pay Range for Experienced: $126,650 - $171,350

Summary Pay Range for Senior: $160,650 - $217,350

Potential signing bonus for eligible/qualified external candidates.

Language Requirements:

Not Applicable

Education:

Bachelor's Degree or Equivalent

Relocation:

This position offers relocation based on candidate eligibility.

Export Control Requirement:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. 120.62 is required. "U.S. Person" includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Safety Sensitive:

This is not a Safety Sensitive Position.

Security Clearance:

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.

Visa Sponsorship:

Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program

This position is not contingent upon program award

Shift:

Shift 1 (United States of America)

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Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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