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Associate Developer Jobs in Belleville, IL (NOW HIRING)

Stifel strives for a culture that puts its clients and associates first: a culture where everyone ... The Developer II will participate in all phases of the development process including design ...

Why Stifel Stifel strives for a culture that puts its clients and associates first: a culture where ... The Developer II will begin to learn cross-disciplinary development skills in a full-stack ...

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Associate Developer information

See Belleville, IL salary details

$10.7K

$81K

$127.2K

How much do associate developer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for associate developer in Belleville, IL is $80,976.00, according to ZipRecruiter salary data. Most workers in this role earn between $60,200.00 and $91,800.00 per year, depending on experience, location, and employer.

What is the difference between Associate Developer vs Junior Developer?

AspectAssociate Developer
Required Credentials
Typically an entry-level role requiring a bachelor's degree in computer science or related field, with some certifications like Java or Python basics.
Work Environment
Usually works under supervision in software development teams, assisting with coding, testing, and documentation.
Employer & Industry Usage
Commonly used in tech companies, IT departments, and software firms as an entry-level position.
Comparison Summary

Both Associate Developer and Junior Developer are entry-level roles requiring similar educational backgrounds and certifications. They typically work in collaborative environments under supervision, focusing on coding and testing tasks. The terms are often used interchangeably, but 'Associate Developer' may emphasize a slightly broader support role within development teams.

What are the key skills and qualifications needed to thrive as an associate developer?

To thrive as an Associate Developer, you need a solid understanding of programming languages such as Java, Python, or JavaScript, alongside a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, integrated development environments (IDEs), and basic knowledge of databases is typically expected. Strong problem-solving skills, attention to detail, and the ability to communicate clearly with team members help you stand out in this role. These competencies are crucial to efficiently contribute to software projects, collaborate effectively, and support the delivery of high-quality code.

What are some typical challenges faced by associate developers when transitioning from academic projects to real-world software development?

Associate Developers often find that moving from academic or personal projects to professional software development introduces new challenges, such as working within larger codebases, adhering to established coding standards, and collaborating with cross-functional teams. Managing version control, participating in code reviews, and understanding the importance of clear documentation are also key aspects. Additionally, learning to estimate tasks accurately and prioritize responsibilities based on team goals helps Associate Developers grow and succeed in a professional environment.

What is an associate developer?

Associate Developers are entry-level software professionals who assist in designing, coding, testing, and maintaining software applications under the guidance of more experienced developers. They typically work as part of a development team, contributing to projects by writing code, fixing bugs, and participating in code reviews. Associate Developers are often recent graduates or individuals with limited professional programming experience, and this role serves as a stepping stone to more advanced positions in software development.
What are the most commonly searched types of Developer jobs in Belleville, IL? The most popular types of Developer jobs in Belleville, IL are:
What cities near Belleville, IL are hiring for Associate Developer jobs? Cities near Belleville, IL with the most Associate Developer job openings:
Infographic showing various Associate Developer job openings in Belleville, IL as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 28% Part Time, 1% Temporary, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $80,976 per year, or $38.9 per hour.

Associate Guidance Navigation & Control Engineer

Boeing

Hazelwood, MO

Full-time

Medical, Life, Retirement

Posted 24 days ago


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 612 frontline employees who took The Breakroom Quiz

31st of 538 rated manufacturers


Job description

Associate Guidance Navigation & Control Engineer

Company:

The Boeing Company

Boeing Defense, Space & Security's Air Dominance division is hiring Associate Guidance Navigation and Control (GNC) Engineers in Hazelwood, MO.

Propelled by a team with an innovative spirit that transcends cultures, Air Dominance delivers decisive mission advantages through cutting-edge capabilities and supports design, manufacturing, and services for a broad portfolio of military aircraft. These roles will support new product design, development, integration and flight test supporting the areas of guidance, modeling and simulation, flight control and subsystem control for the expanding Air Dominance Portfolio; F-15, F/A-18, MQ-25, T-7A as well as new proprietary air dominance programs.

Flight engineers are essential to the development, safety and success of our products and solutions. Each day, they go above and beyond to meet our customers' overall mission requirements-from initial vehicle concept definition through design, test, validation and in-service support. Your expertise in areas such as Aerodynamics; Propulsion; Guidance, Navigation & Control; and Loads & Dynamics will drive the future of aerospace.

Position Responsibilities

  • Assist in defining Guidance, Navigation and Control mission requirements and ensure requirements traceability and quality from the system level to component level

  • Use multidisciplinary model data (aero, mass properties, propulsion, etc.) to develop and refine a complex, nonlinear, 6 degrees of freedom simulation model

  • Use various software languages, C, C++, FORTRAN, Python, etc. to develop, implement, integrate and test vehicle models and controllers

  • Support design of flight control laws using modern linear control design techniques and tools to achieve design and performance targets

  • Use advanced nonlinear analysis to assess and refine the control law design

  • Perform model validation against test data to inform and improve the accuracy of the simulation environment

  • Develop supplementary controllers, limiters, mode logic, and signal shaping to properly bound the performance within all areas of the flight envelope

  • Work with flight simulation and Vehicle Management Systems (VMS) software engineers to incorporate control laws into the operational flight program

  • Support flight simulations including desktop, software, and real time simulations

  • Support hardware in the loop development and testing

  • Support flight testing planning and execution

  • Participate in design reviews, analyses, simulations and component/system testing to ensure delivery of products that meet or exceed customer requirements and expectations

Basic Qualifications (Required Skills and Experience):

  • Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement

  • 2+ years work-related experience with a Bachelors degree OR an equivalent combination of work-related experience and technical education.

  • Experience with Guidance Navigation & Control engineering

  • Experience using Matlab/Simulink or MatrixX to model systems.

Preferred Qualifications (Desired Skills and Experience):

  • Active U.S. Secret Security Clearance or higher

  • Experience with simulation, system and component modeling

  • Experience with implementing algorithms in real time systems

  • Hardware in the Loop Simulator (HILS) experience

  • Prior experience in flight test support

Conflict of Interest:

Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process.

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.

The Boeing 401(k) helps you save for your future, with contributions from Boeing that can help you grow your retirement savings. Our best-in-class retirement benefit features:

  • Best in class 401(k) plan: we'll match your contributions dollar for dollar, up to 10% of eligible pay with Immediate 100% vesting

  • Student Loan Match: The Boeing 401(k) Student Loan Match allows eligible enrolled U.S. employees to have their qualified student loan debt payments counted, along with any match-eligible contributions they make, for purposes of determining the Company Match to employees' Boeing 401(k) accounts.

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: $93,500 - $126,500

Language Requirements:

Not Applicable

Education:

Bachelor's Degree or Equivalent

Relocation:

This position offers relocation based on candidate eligibility.

Export Control Requirement:

This is not an Export Control position.

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. This position requires ability to obtain program access, for which the U.S. Government requires U.S. Citizenship only.

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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