Software Engineer-Developer 3

Engineering Software Engineer-Developer 3 ST Charles, MO Posted: 4/28/2026 Job Description Job ID#: 217534 Job Category: Engineering Position Type: Associate - W2 Duration: 12 mo Shift: 1 PDS Defense, Inc. is seeking a Software Engineer-Developer 3, in St. Charles, MO. Job ID#217534 Job Description: We are seeking talented experienced software engineers to work with a multi-discipline engineering team to design and develop software solutions for these platforms. Engineers on this team work in all phases of the software development lifecycle. We are actively building the team to achieve a growing work scope that includes implementing real-time embedded software applications, creating models and simulations, deploying DevOps methodologies and development environments, developing support applications, and maintaining software configurations and processes for an Agile development lifecycle. Why St. Charles, MO:

• On-site cafeteria offering hot meals and grab-and-go options.
• Active Employee Resource Groups (ERGs) providing networking, mentorship, and community engagement.
• Campus walking path and outdoor spaces for breaks, walking meetings, and wellness activities.
• Fitness and wellness programs, local commuter resources, and community events.

Position Responsibilities:

• Collaborate with a multi-discipline engineering team to create and implement Operational Flight Program software solutions
• Contribute in all phases of the software development lifecycle in an Agile development environment
• Develop solutions using Ada, C#, and Python
• Test your software and assist system level testing to verify correct software functionality
• Analyze problem reports and troubleshooting software defects
• Develop leadership skills and experience
• Opportunity to work directly with United States Air Force and Navy customers

Basic Qualifications (Required Skills/ Experience):

• 3+ years of experience in real-time embedded software development
• 3+ years of experience in developing software using Object Oriented principles
• 3+ years of experience working in a team environment

Preferred Qualifications:

• Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, computer science, computer engineering, software engineering or equivalent experience strongly preferred
• Active U.S. secret clearance
• Experience with Ada, Python, or C#
• Experience working in an Agile software development environment
• Experience with Git or a similar version control system
• Experience developing and tracing software requirements

Benefits offered to vary by the contract. Depending on your temporary assignment, benefits may include direct deposit, free career counseling services, 401(k), select paid holidays, short-term disability insurance, skills training, employee referral bonus, affordable medical coverage plan, and DailyPay (in some locations). For a full description of benefits available to you, be sure to talk with your recruiter. Job Requirements Minimum Security Clearance: Secret Military connected talent encouraged to apply. VEVRAA Federal Contractor / Request Priority Protected Veteran Referrals / Equal Opportunity Employer / Veterans / Disabled To read our Candidate Privacy Information Statement, which explains how we will use your information, please visit or The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: The California Fair Chance Act Los Angeles City Fair Chance Ordinance Los Angeles County Fair Chance Ordinance for Employers San Francisco Fair Chance Ordinance VEVRAA Federal Contractor / Request Priority Protected Veteran Referrals / Equal Opportunity Employer / Veterans / Disabled PDS Defense