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Senior Software Engineer with Security Clearance

i3Huntsville, AL🇺🇸United StatesPosted Sep 30, 2026

Why This Role Stands Out

Advance your career by developing cutting-edge autonomy software for uncrewed platforms, leveraging the latest .NET technologies within an Agile team environment. If you have a strong background in software development and enjoy tackling complex challenges, this role offers a unique opportunity to contribute to impactful defense projects and grow your expertise. Apply today to join a dynamic team and make a significant contribution.

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
On Site
Location
Huntsville, AL, United States
Posted
Yesterday
RustAgileC#.NETGitLESSPython

Job Description

i3 is seeking a Software Engineer with 7+ years of professional experience to develop cutting edge command and control (C2) and autonomy software for various uncrewed platforms including planes, boats, vehicles, and submersibles. This is a new project leveraging the latest .NET tools, best practices, and technology to support various DoD customers.  Responsibilities

  • The candidate will work with an Agile software development team delivering value to a DoD customer in small, incremental iterations.
  • The candidate will be responsible for following pre-defined software safety practices to develop flight critical software. This includes software architecture reviews, documentation updates, and comprehensive testing of new capabilities.
  • Candidate will develop software designs using best practices and object-oriented methodologies.
  • Candidate will develop automated unit and integration level tests.
  • Candidate will utilize good configuration management practices and will be responsible for proper code maintenance, merging, and configuration management.
  • Other duties as assigned. Qualifications Education, Experience and Required skills:
  • Must be a U.S. Citizen.
  • Have a Bachelor of Science degree (or advanced degree) from an accredited college (ABET preferred) in computer science, engineering, mathematics, or the hard sciences.
  • 7+ years of relevant professional experience
  • Candidate must be a team player and be creative, adaptive, and excited to learn.
  • Comfortable in a Linux environment.
  • Experience leading small to mid-sized development teams.
  • Candidate must be familiar with good configuration management practices.
  • Active Secret Clearance or the ability to obtain and maintain an active Secret clearance or higher.
  • Position Location: In office in Huntsville, AL
  • CONUS Travel required: Less than 10%   Preferred Experience/Skills:
  • Experience with C#/.NET, Python Rust.
  • Prefer understanding of agile software development, ideally Extreme Programming (XP).
  • Familiarity with Git for software source control and configuration management.
  • Experience with remote controlled boats, vehicles, or planes is a plus.
  • Experience with single board computers (Raspberry Pi, NVIDIA Jetson, etc.).
  • Familiarity with UxS command and control message formats (ex. STANAG-4586, UCI, MAVLink).
  • Experience developing next generation C2 architectures for the DoD.

Knowledge/Skills

  • Knowledge of office administration and procedures.
  • Exceptional judgment capabilities and relationship management skills.
  • Excellent communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly and tactfully.
  • Interact with a diverse array of customers and staff in a professional and courteous manner.
  • Work independently with accountability for accurate and complete results.
  • Be extremely organized and exceptionally detail oriented.
  • Work well both independently and in a team environment.
  • Be energized by a fast-paced work environment.
  • Must be able to communicate with others effectively.
  • Analyze information and respond appropriately.
  • Manage time wisely and prioritize tasks.
  • Provide superior customer service.
  • Multi-task in a pleasant manner.
  • Work well under pressure.

Physical Demands

  • The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
  • While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
  • The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
  • Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
  • Regular i3 hours are 8:00 a.m.
  • 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.

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