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Software Engineer Two Jobs in O Fallon, IL (NOW HIRING)

Delivery Management Engineer II

Saint Louis, MO · Hybrid

$54.25 - $72.50/hr

Position Summary Delivery Management - Delivery Management Engineer II - AI & Engineering Join our ... Bachelor's degree in computer science, software engineering, information technology or a related ...

Software development, namely development of server side applications and REST APIs using NodeJS ... Qualifications 0-2 Years of Experience Degree in Computer Science, Computer Engineering or related ...

Software development, namely development of server side applications and REST APIs using NodeJS ... Qualifications 0-2 Years of Experience Degree in Computer Science, Computer Engineering or related ...

Showing results 41-60

Software Engineer Two information

See O Fallon, IL salary details

$59.2K

$137.6K

$191.7K

How much do software engineer two jobs pay per year?

As of Sep 10, 2026, the average yearly pay for software engineer two in O Fallon, IL is $137,611.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,900.00 and $161,400.00 per year, depending on experience, location, and employer.

What is the difference between Software Engineer Two vs Software Engineer Three?

AspectSoftware Engineer TwoSoftware Engineer Three
Required CredentialsBachelor's degree in Computer Science or related field; 2+ years experienceBachelor's degree; 3+ years experience; often some certifications
Work EnvironmentCollaborative team projects, coding, debuggingSimilar environment, more complex projects, mentorship roles
Employer & Industry UsageCommon in tech companies, startups, software firmsSame as Software Engineer Two, often a step above in responsibility
Search & Comparison IntentPeople comparing mid-level software engineering rolesLooking for progression or differentiation in software engineering levels

The main difference between Software Engineer Two and Software Engineer Three lies in experience and responsibility. Software Engineer Three typically has more years of experience, handles more complex tasks, and may mentor junior staff. Both roles are common in tech industries, with Software Engineer Three representing a higher level of expertise and responsibility.

What cities near O Fallon, IL are hiring for Software Engineer Two jobs?

Cities near O Fallon, IL with the most Software Engineer Two job openings:

Infographic showing various Software Engineer Two job openings in O Fallon, IL as of June 2026, with employment types broken down into 1% As Needed, 95% Full Time, 1% Part Time, 1% Temporary, and 2% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $137,611 per year, or $66.2 per hour.

Software Engineer, Senior

Hazelwood, MO • On-site

FlightSafety International
Aviation • 1 - 5K employees

$113K - $149K/yr

Full-time

Re-posted 11 days ago


FlightSafety International rating

8.8

Company rating: 8.8 out of 10

Based on 10 frontline employees who took The Breakroom Quiz


Job description

About FlightSafety International

FlightSafety International is the world’s premier professional aviation training company and supplier of flight simulators, visual systems and displays to commercial, government and military organizations. The company provides training for pilots, technicians and other aviation professionals from 167 countries and independent territories. FlightSafety operates the world’s largest fleet of advanced full-flight simulators and award-winning maintenance training at Learning Centers and training locations in the United States, Canada, France and the United Kingdom.

Purpose of Position

Create mixed reality software and hardware solutions to provide a realistic training environment that combines both a physical and virtual world. Design, develop, test and troubleshoot software across the development cycle for GUIs and runtime applications. Use disciplined software development methods, construction techniques, usability and interface skills, test methodologies and configuration management. Collaborate as part of a multi-disciplinary team. 

Tasks and Responsibilities
  • Designs prototypes for new technologies, algorithms, structures, and processes. Conducts research and development.
  • Supports computer system and hardware requirements, integration, and maintenance.
  • Develop engineering tools
  • Remains current on state-of-the-art technologies through technical papers, periodicals, and conferences.
  • Travel, shift work, and special work hours may be required to accomplish some of the above tasks.
  • Exhibits and practices professional and courteous behavior while interacting with both internal and external customers.
  • Interacts within a cooperative environment through beneficial behavior, commitment to common goals, contribution to problem solving, communication of ideas and suggestions, and encouragement to other employees and departments.
  • Accountable for the control and distribution of documents and/or equipment subject to export control restrictions or other applicable laws and regulations and the security of FSI materials, projects and business information regarding the methods and techniques used in the production and usage of FSI products.
  • Accountable for the accuracy and completeness of assigned tasks.
  • Able to adhere to a work schedule including prompt and regular attendance. Willingness to work overtime as necessary.
  • Adhere to accurate time recording of daily work activity.
  • Ability to work in a constant state of alertness and in a safe manner.
  • May be required to apply for and maintain a security clearance.
Minimum Education

Bachelor's Degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering or other applicable technical field; and two years related experience; or equivalent combination of education and experience, or Master’s Degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering or other applicable technical field preferred.

Minimum Experience

5+ years of experience in relevant technical industry 

Knowledge, Skills, Abilities

Senior Developer

  • 5+ years of experience in software development or a related technical field.

  • Bachelor's or Master's degree in Computer Science, Computer Engineering, Information Systems, Computer Game Development, or a related technical discipline.

  • Proficiency in C, C++, and/or C# programming.

  • Experience with graphics or game development technologies such as Unreal Engine, Unity, OpenGL, Direct3D, HLSL, or GLSL.

  • Strong understanding of software architecture, object-oriented design, and software engineering best practices.

  • Experience developing Virtual Reality (VR), Augmented Reality (AR), or Mixed Reality (MR) applications.

Technical Product Owner

  • Experience evaluating emerging technologies and assessing technical feasibility.

  • Ability to collaborate with Product Management to define Mixed Reality product priorities and roadmaps.

  • Experience supporting business proposals, technical presentations, and customer engagements.

  • Responsible for planning and executing demonstrations, trade shows, customer events, and technical showcases.

  • Willingness to travel approximately 10–20% for demonstrations, customer support, and project activities.

Preferred Qualifications
  • Experience with 3D modeling and animation tools.

  • Game development experience.

  • Experience with industrial camera systems and control applications.

  • Experience developing desktop aviation simulation applications (e.g., X-Plane, Prepar3D).

  • Experience developing Electronic Flight Information Systems (EFIS) or avionics software.

  • Strong mathematical background including:

    • Euclidean Geometry

    • Projective Geometry

    • Matrix Algebra

    • Vector Mathematics

  • Experience implementing software design patterns.

  • Experience with multi-threaded software development.

  • Ability to read, interpret, and implement technical specifications.

  • Experience working within Lean and Agile software development environments.

Key Technical Skills
  • C

  • C++

  • C#

  • Unreal Engine

  • Unity

  • OpenGL

  • Direct3D

  • HLSL

  • GLSL

  • VR/AR/MR Development

  • Object-Oriented Design

  • Software Architecture

  • Multi-Threading

  • Agile Development

  • Technical Specifications

  • 3D Graphics Programming

  • Mathematical Modeling

Travel Requirement
  • Up to 20% travel for customer demonstrations, project support, trade shows, and technical events.

Preferred Industry Experience
  • Mixed Reality (MR)

  • Virtual Reality (VR)

  • Augmented Reality (AR)

  • Simulation & Training

  • Aviation Simulation

  • Aerospace & Defense

  • Gaming & Interactive Technologies

  • Visualization Systems

Physical Demands and Work Environment

The physical demands and work environment described here are representative of those that must be met and or encountered by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. The employee will be regularly required to sit, demonstrate dexterity to handle or feel, speak, and hear. The employee is occasionally required to stand, walk, and reach with hands and arms. The employee must occasionally lift and/or move up to 10 pounds. Specific vision abilities required close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus. While performing the duties of the job, the employee is occasionally exposed to moving mechanical parts and vibration.  The noise level in the work environment is usually moderate. 

FlightSafety is an Equal Opportunity Employer/Vet/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or disability.

Any offer of employment is contingent upon successful completion of required compliance reviews, including verification that the candidate is not prohibited from employment under U.S. economic sanctions programs administered by the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC).

This position may require access to export-controlled technology or services subject to the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR). Employment consideration and any offer of employment are contingent upon the applicant’s ability to comply with these requirements, including qualifying as a “U.S. Person” under applicable regulations or otherwise eligible for export authorization within a timeframe consistent with business needs. A “U.S. Person” includes U.S. citizens, lawful permanent residents (holders of approved and unexpired green cards), and certain refugees or asylees with protected status under U.S. law.

This position may also require eligibility to obtain and maintain a U.S. Government security clearance for the duration of employment.

Cybersecurity Notice: All official recruiting communication from FlightSafety International will come from an @flightsafety.com email address.  FlightSafety International will never ask for personal or financial information through social media or third-party email providers.


What FlightSafety International employees say

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