Sr. Software Engineer

Job Summary

The Sr Software Engineer will support the design, development, testing, and documentation of complex software systems for Department of Defense (DoD) programs. This role requires extensive experience in software engineering, including requirements of definition, architecture, coding, debugging, and performance analysis. The engineer will contribute across the full software lifecycle and must be capable of producing high-quality technical documentation, supporting technical positions, and working with advanced technologies such as cybersecurity, real-time programming, or machine learning.

Responsibilities

• Develop, maintain, and enhance software applications including operating systems, communications software, database packages, compilers, assemblers, and utility programs.
• Define, manage, and document software requirements, architecture, design, and code.
• Carry out benchmark testing, debugging, and performance analysis across multiple software components.
• Prepare and maintain technical documentation such as Software Development Plans (SDPs), Engineering Change Proposals (ECPs), Interface Change Requests (ICRs), Interface Design Specifications (IDS), and software test plans and reports.
• Analyze software performance in realistic operational Naval environments and scenarios.
• Support technical recommendations by developing and defending technical positions and writing detailed technical reports.
• Participate in software testing at multiple levels, including unit, system, and system of systems testing.
• Identify software constraints, perform analyses, and define actionable corrective measures.
• Contribute to advanced software engineering tasks in areas such as cybersecurity, real-time programming, UML/SysML modeling, or datadriven technologies.

Requirements

• Must be a US citizen.
• Must have an active secret security clearance.
• Ten (10) years of experience in software engineering; OR a bachelor's degree in engineering, Mathematics, Physics, Operations Research, or Computer Science and six (6) years of software engineering experience.
• Experience as a skilled developer creating or maintaining at least two of the following: Operating systems Communications software Database packages Compilers Assemblers Utility programs.
• Experience in software requirements definition and management, software design, coding, debugging, benchmark testing, software development lifecycles, architecture, and documentation.
• Experience developing and understanding technical documents including SDPs, ECPs, ICRs, IDSs, software test plans/reports, and analytical evaluations of software performance.
• Demonstrated ability to develop and support technical positions, justify recommendations, and write technical reports.
• Experience in at least one of the following areas: Cybersecurity Programming languages such as C, C++, C#, Java, HTML, .NET UML/SysML modeling Realtime programming Multilevel software testing and corrective action analysis Big data, data mining, machine learning, or artificial intelligence techniques.

About ZelTech

Zel Technologies is a trusted leader in national security, providing comprehensive research, development, engineering, and operational support to the Department of Defense, the Intelligence Community, and federal agencies. Founded in 1988 by Ret. Col. Jack L. Ezzell Jr., Zel Technologies has advanced its capabilities to provide scientific and HUMINT expertise for CBRNE collection and analysis, as well as turnkey ISR support services to US Special Operations Forces (SOF), and advanced technical & operational intelligence, physical & data science, and engineering support services to the greater Intelligence and SOF Communities supporting global counterterrorism and CWMD operations. Today, Zel Technologies remains at the forefront of intelligence missions, advancing CWMD and global counterterrorism efforts, while also addressing emerging threats posed by near-peer adversaries. Our team remains committed to delivering adaptive, innovative, and cost-effective solutions across multiple domains, in alignment with the mission priorities of the U.S. Government and its partner nations. Our Mission Through our commitment to innovation and quality, our skilled teams deliver robust, technology driven solutions and insights that empower our customers to overcome complex challenges and achieve their mission objectives. Our Workforce ZelTech team members represent a wide range of backgrounds, skills, experience, and personalities bound together by common objectives and mutual respect. You will join a caring community of professionals, including many military veterans who challenge and support each other in seeking the right solutions to important matters. Benefits Medical, Dental and Vision Insurance 401k immediate vesting with company match Flexible Spending Accounts Health Savings Account with company contributions Employee Assistance Program (EAP) Bonuses for performance Voluntary life/accidental death & dismemberment Educational assistance and special training programs Voluntary benefits (accidental, critical illness, whole life) Group life insurance (Company paid) Short-term and Long-term Disability Insurance (Company paid) Paid Time Off (PTO), Holiday Leave, Jury Duty, and Military Leave Health and fitness reimbursement Referral bonuses Employee discounts on various services and products Equal Opportunities ZelTech is an equal opportunity employer and does not discriminate based on race, color, religion, creed, sex, age, sexual orientation, national origin, disability, marital status, military status, genetic predisposition, or any other basis protected by law.