Demo

Software Engineer II/III

Advanced Acoustic Concepts
Lemont, PA Full Time
POSTED ON 10/31/2026
AVAILABLE BEFORE 12/24/2026
Job Title: SoftwareEngineer II/III

Job Location: Great River, NY

Lemont Furnace, PA

Clarksburg, MD

Manassas, VA

Advanced Acoustic Concepts, LLC, a wholly owned subsidiary Thales Defense & Security Inc., is a technical leader in the fields of sonar systems, sonar signal processing, acoustic training systems, and open architecture system and software integration. The venture focuses on emerging areas in the undersea warfare domain where the customer has identified mission-critical needs. For additional information about Advanced Acoustic Concepts ("AAC"), please visit our website at: https://www.aaccorp.com .

Top Benefits (Subject To Terms Of Applicable Policies/plans)

  • Competitive Salary
  • Yearly Incentive Compensation Plan
  • Medical insurance for self and eligible family members
  • Generous 401(k) program - up to 7% company contribution and 100% immediate vesting
  • Tuition Reimbursement
  • Paid time off and paid holidays
  • Paid maternity, paternity, and parental leave
  • 9/80 Work Schedule (every other Friday off) work schedule, every other Friday off.
  • Onsite Full Time

Position Summary

AAC is seeking software engineer II and III candidates for its various locations. The software engineer designs, develops and modifies software systems, using scientific analysis and mathematical models to predict and measure outcomes and consequences of design. Coordinates software system installations and monitors equipment functioning to ensure specifications are met. Involved with the design, development, analysis, testing and debugging of computer software applications and/or systems. May include Image and Signal Processing, Real-time, Firmware, Nuclear/Hi-Rel, FAA Certified, Database Design, Operating Systems, Operator/Machine Interface, or others. Develop software tools including operating systems, compilers, routers, networks, utilities, databases, and Internet-related tools. Determine hardware compatibility. Complete documentation and procedures for installation and maintenance. Interact with users to define system requirements and/or necessary modifications.

Responsibilities

  • Responsible for technical activities and completion of activities on time and within budget
  • Design, develop, analyze, document and support testing of products, systems, or subsystems
  • May use computer-aided engineering or other design/analysis software in the performance of assignments.
  • Report of progress and status regularly
  • Review customer specifications and requirements, and under direction, develop designs to best support them, including cost as a key design variable
  • Provide budget, cost, and schedule input for design assignments
  • Specify and evaluate supplier components, subsystems, and services
  • Support the program design to cost and design for manufacture requirements
  • Develop prototypes to retire key development risks
  • Communicate clearly (written and oral) with other company personnel and the customer as required
  • Participates in preparation of less-complex proposals
  • May provide technical knowledge and assistance to other engineers and support personnel
  • Support, communicate, reinforce, and defend the mission, values, and culture of the organization

Qualifications

The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

  • Bachelor’s degree in engineering or related technical field with a minimum of 2 years of experience
  • Fluency in technologies and application domain
  • Ability to lead a technical group independently
  • Demonstrated proficiency with C , Python programming
  • Linux (Red Hat, Ubuntu, etc.) knowledge and experience
  • Systems networking and interface design experience highly preferred

Physical Requirements

  • Lifting (up to 20 lbs.): up to 25% of time
  • Walking: up to 25% of time
  • Climbing, Bending, Standing, Stooping: up to 10% of time
  • Sitting: up to 75% of time
  • Travel: up to 10% of time

The annualized pay range for this role is $80,000 - $120,000 USD, commensurate with job level determined at the time of hiring. This role may be eligible for a discretionary target incentive compensation plan. The pay range provided is a good faith estimate representative of the experience level for the role described above. AAC considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, geographic location, education/training, and key skills.

For specific questions about this job posting, candidates may contact talent acquisition at hr@aaccorp.com.

Advanced Acoustic Concepts, LLC is committed to non-discrimination as applicable under federal and state laws. AAC is an E-Verify employer.

If you need accommodation or assistance in order to apply for a position with Advanced Acoustic Concepts, LLC, please call Human Resources at 631-273-5700.

# LI-onsite

Privacy Notice for Job Applicants

We collect personal information in this application to evaluate your qualifications for employment and to comply with applicable legal requirements. Your information will be kept confidential and used only for employment-related purposes. Where required by law, you have the right to access, correct, or request deletion of your personal information. If you have questions about how your information is handled, please contact hr@aaccorp.com.

Salary : $80,000 - $120,000

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