Senior Software Engineer

About The Role:
Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Sr. Software Engineer I to be part of our Missile Defense team and based out of our Mount Laurel, NJ, Arlington, VA, or San Diego, CA locations. The Sr Software Engineer will develop ATRT software tools to include missile defense dashboards and visualizations in React.js and third-party visualization libraries, agentic AI solutions, and analytics software. This role is expected to manage teams to handle all aspects of the software development lifecycle from requirements collection through user acceptance testing. The Sr Software Engineer is also expected to participate in the software development process alongside their team. Clearance & Location Requirements:

• All applicants must currently possess an active Secret U.S. Security Clearance.
• This is an on-site position. Requiring at least 3 days in the office, based out of our Mount Laurel, NJ, Arlington, VA, or San Diego, CA locations.

Department Engineering Employment Type Full Time Location Arlington, VA Address 4401 Wilson Boulevard Suite 810, Arlington, Virginia, 22203 Open in Google Maps Workplace type Onsite Compensation $164,000 - $273,000 / year

Key Responsibilities

What You Will Do:

• Manage Risk and Security: Identify and mitigate technical and security risks through proactive testing, code reviews, and adherence to secure development practices. Participate in threat modeling sessions and follow established processes to ensure compliance with organizational and system-level standards.
• Engineer and Architect Solutions: Design and develop high-fidelity prototypes to guide architectural decisions and evaluate solutions against business and operational goals. Architect end-to-end systems that balance project constraints with enterprise objectives, selecting languages, frameworks, and data structures to optimize performance and scalability. Apply advanced algorithms and design patterns to solve complex problems while adapting frameworks to maximize value and efficiency.
• Test and Assure Quality: Design and implement comprehensive test strategies, including unit, integration, and performance testing, to ensure full system coverage. Lead complex incident investigations and coordinate cross-team issue resolution. Enhance monitoring, alerting, and diagnostic tools to improve detection and response, while proactively addressing systemic defects and guiding architectural improvements to ensure long-term software stability.
• Leadership & Collaboration : Mentor junior engineers, participate in design/code reviews, and communicate effectively with cross-functional teams and stakeholders.

Skills, Knowledge & Expertise

Who You Are (Required):

• Bachelor's degree in computer science, software engineering, computer engineering, cybersecurity, or related field (or equivalent full-time professional experience)
• Minimum of 10 years' experience in software development
• Ability to travel approximately 20%
• Ability to develop software in Java, JavaScript, Python, or C++ (among other programming languages)
• Experience architecting and building with relational databases such as SQL, Postgres databases like MongoDB.
• Ability to decompose and document requirements and specifications
• Understanding of distributed systems, algorithms, data structures, and software design patterns
• Demonstrable experience leading all aspects of the Software Development Life Cycle
• Experience with software testing and configuration management
• Ability to convert vague customer requirements into a refined vision
• Ability to identify and describe algorithmic complexity
• Ability to work on-site with potential hybrid flexibility

What Makes You Stand Out

• Experience with AI-assisted software development
• Master's degree in Engineering or another technical field
• Development, system integration, and test experience for complex software applications
• Experience with testing software and test automation
• Experience with containerized deployment technologies (Kubernetes, OpenShift, Docker etc.)
• Experience with basic network concepts like VLANs, IP addressing schemes, and static routing
• Experience with low-level software design and development, such as Digital Signal Processors, Single Board Computers, Field Programmable Gate Arrays, Operating System Drivers, or other related low-level development

If you see yourself reflected in this role and are excited about the impact you could make, we encourage you to apply! If you know someone who may be a great fit, please feel free to share this opportunity with your network.

Pay Range*: $164,000 - $273,000 or $198,000 - $328,000
This amount may not be reflective of actual compensation that may be earned, as pay is dependent on a candidate's experience, skills, and education. The posted range does not include bonuses, commissions, tips, or other benefits. IDT is often looking to place multiple candidates at various levels. Therefore, more than one pay range has been included, commensurate with experience.

Job Benefits

Why Work at Innovative Defense Technologies (IDT):

IDT is a growing company with a vibrant, entrepreneurial culture. We are headquartered in Arlington, VA with additional offices in Fall River, MA; Mount Laurel, NJ; and San Diego, CA. At each location, our employees work together in a modern, snack-filled, and social office space, designing innovative solutions for our defense industry customers. We offer employees competitive pay and benefits including:

• Generous benefits package
• Competitive PTO
• Paid holidays
• 401(k) with immediate vesting and matching
• 9/80 optional schedule (2nd and 4th Friday off every month)
• Tuition Assistance Reimbursement Program
• Professional Development Resources
• Pre-Tax Commuter Benefits
• Organization-Wide Monthly Tech Connect Events
• Annual Employee Recognition Awards
• Regular Social Events and Catered Lunches

EEO Statement: IDT is an Equal Opportunity employer.

About Innovative Defense Technologies

Innovative Defense Technologies (IDT) is a leading defense technology company focused on rapidly delivering mission-critical software and systems solutions to the U.S. government. The company specializes in automation, digital engineering, and enabling the rapid integration of advanced capabilities into complex weapon and combat systems. These essential solutions empower the warfighter to field, operate, and sustain decisive capability at speed and scale. At IDT, our employees are developing advanced mission-critical outcomes by consistently delivering high-quality results, fostering innovation, applying rigorous problem-solving, and effectively collaborating across multifaceted teams and stakeholders. Grounded in these competencies, IDT translates complex customer priorities into robust software solutions. Apply Now