Senior Python Developer

Markon's partner company is seeking a motivated Senior Python Developer (Developer 3) with strong technical expertise and mission-focused experience to support a new cybersecurity initiative. In this role, you will work closely with a small team and mission stakeholders to capture requirements, create and integrate network protocol parsers, develop fingerprints and signatures to identify suspicious and anomalous network activity, and deploy solutions to customer-supported tools to automate data and metadata analysis.

Mission Focus

Collaborate directly with customers and mission stakeholders to gather requirements and translate operational needs into technical solutions.
• Overlay network datasets through an existing architecture leveraging the ABYSS product.
• Integrate parsers and signatures into ABYSS, supporting both ingestion and analytics workflows.
• Develop tradecraft to support front-end sensors and mission-facing capabilities.

Technical Responsibilities

• Design, prototype, and develop network protocol parsing and processing solutions to populate customer data repositories.
• Create and maintain fingerprints and signatures used to detect suspicious, anomalous, or emerging network behaviors.
• Build analytic workflows to automate tasks such as:
• Profiling network traffic and activity patterns
• Detecting changes in network behavior
• Generating alerts and actionable insights based on network changes
• Support deployment of analytic components and enhancements into customer-supported tool environments.
• Produce clean, maintainable, well-documented code and collaborate through peer reviews and version control.

• Active TS/SCI with Polygraph.
• Bachelor's degree in Computer Science (or related field) plus 8+ years of relevant experience, or equivalent experience.
• Strong proficiency in Python and experience with C++.
• Working knowledge of Spark for data processing and analytics pipelines.
• Experience developing in collaborative environments using:
• Git/GitLab
• JIRA
• Confluence
• Jupyter Notebooks
• Understanding of ASDF and TCLD.
• Knowledge of XKEYSCORE/ABYSS fingerprints and how they support detection and analytic missions.

Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.

At Markon, we don't just offer jobs - we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.

Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.

Markon values people and the tremendous impact each individual can make - which is why we're consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation's most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters - bringing out the best in each other to advance our clients' missions.

Join us and make a meaningful impact.

Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.

Benefits Offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Training and Tuition Assistance, Paid Time Off, and Holidays.