Senior Software Engineer with Security Clearance

FANTOM CORPORATION; Chantilly (VA); On-site; USD 130,000 - 180,000; Full time

Job summary

Fantom Corporation is seeking a Senior Software Engineer to support a mission-critical enterprise. This position serves as the principal authority for enterprise software architecture, development standards, application moderization, and secure software delivery across complex environments.

Responsibilities include design, development and testing of applications, establishing architectural frameworks, and leading modernization strategies while delivering scalable, secure and high-performing

Qualifications

• Active Top Secret clearance required.
• Willing to obtain a polygraph.
• 10+ years of experience in application development, including test driven development.
• 10+ years of experience with Python.
• 10+ years of experience across the software development life cycle.

Responsibilities

• Design, develop, test applications while establishing architectural frameworks.
• Develop best practices and create modernization strategies
• This role combines strategic technical leadership with hands‑on engineering expertise to deliver scalable, secure and high performing solutions.

Skills

Python

Education

Bachelor’s degree

Master’s degree

Job description

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solutions while fostering a culture built on trust, expertise, and long-term career growth. We are seeking a Senior Software Engineer to support a mission-critical enterprise. This position serves as the principal authority for enterprise software architecture, development standards, application moderization, and secure software delivery across complex environments.

Responsibilities

• Design, develop, test applications while establishing architectural frameworks.
• Develop best practices and create modernization strategies
• This role combines strategic technical leadership with hands‑on engineering expertise to deliver scalable, secure and high performing solutions.

Required Qualifications

• Must possess an active Top Secret Clearance
• Must be willing and able to obtain a polygraph
• Bachelor’s degree with 10+ years of relevant experience, or Master’s degree with less than 2 years of relevant experience
• 10+ years of experience in application development, including test driven development.
• 10+ years of experiene with Python.
• 10+ years of experience across the software development life cycle.

#CJ $0 - $0 a year

Fantom Corp is a Software Development, Agile Cloud, Software Development, Cyber Security (Risk Management, Assessments & Authorization (A&A)), Data, AI Platform (Computer Vision Models), Podcasting Media Services, and IT Services provider. Established in 2015, Fantom Corp serves Federal customers with top-notch Cybersecurity Architects, Data Scientists/Analysts, Software Engineers/Developers, DevSecOps Engineers, Project Managers, Identity, Credential Access Management (ICAM) services , and Cloud-certified practitioners. We excel in delivering emerging technologies such as Artificial Intelligence (AI) and Machine Learning (ML) with a focus on identifying trends, object detection, and classification of structured and unstructured data. Fantom Corp possesses mastery in all aspects of digital audio production. We lead in the ideation and creation of efforts for clients who want to harness the power of podcasting. We guide them in selecting the right show format for their needs and goals. As a Small Business, we possess the innovation, speed and flexibility to meet your requirements.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.