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Salary
$120k – $200k per year
Location
In office (Annapolis Junction)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 1, 2026.

Overview
Company
Impact
Profile match
Markon Solutions is a government services contractor headquartered in Falls Church, Virginia, supporting the intelligence community, defense agencies and federal civilian customers with cyber, digital transformation, engineering and facilities management work. A repeated Washington Post Top Workplace, it staffs programs at Fort Meade, Annapolis Junction, Chantilly, McLean and Herndon, and supports naval nuclear work in West Mifflin and Niskayuna. Hiring covers software developers, systems and network engineers, data scientists, target analysts, civil, structural and electrical engineers, facility managers, space auditors and accountants.

Description

PLEX Solutions, A Part of Markon is looking for a motivated Application Developer to join the Eurasia & Western Hemisphere mission. The Developer will collaborate directly with mission stakeholders, data scientists, and analysts to capture requirements then design, develop and deploy end-to-end technical solutions that deliver immediate operational impact to mission workflows.

Responsibilities

  • Mission Focus: By working within the cloud environment and customer specific data repositories, create user-facing applications, develop and maintain RESTful APIs, incorporate data visualizations, and establish CI/CD pipelines for secure deployment. Successful solutions will deliver immediate operational value to the analysts.
  • Technical Proficiency: Develop end-to-end applications that integrate front-end U/I with back-end services to support analyst workflows. Knowledge of customer corporate tools and data repositories required.

Qualifications

  • Active TS/SCI W/ Polygraph
  • Bachelor's degree in a related technical field of study
  • 5 years of relevant experience or equivalent.
  • Proficiency with Python, PySpark, Java, Javascript; solid experience with XKS, Mission Data Repositories, GM, LABBENCH, PRESSUREWAVE, Elasticsearch, Git repositories

Desired Skills:

  • Experience with Docker, Kubernetes, collection cycle, database queries is highly desired.
  • Experience with software development processes (i.e., requirements analysis, software design, implementation, testing, integration, deployment/installation, and maintenance) and programming.

  • Experience with Data Science, Machine Learning (ML), Artificial Intelligence (AI) and using Large Language Models (LLMs)

Salary Range

USD $120,000.00 - USD $200,000.00 /Yr.The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Overview

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.

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