Senior Software Developer

Markon

Senior Software Developer leading complex software engineering efforts at PLEX Solutions. Designing and customizing software solutions for operational efficiency in Annapolis Junction, MD.

Posted 7/9/2026full-timeAnnapolis Junction • Maryland • 🇺🇸 United StatesSenior💰 $195,000 - $220,000 per yearWebsite

Tech Stack

Tools & technologies

LinuxTypeScript

About the role

Key responsibilities & impact

Develop, create, and modify general computer applications software or specialized utility programs.
Analyze user needs and develop software solutions.
Design software or customize software for client use with the aim of optimizing operational efficiency.
May analyze and design databases within an application area, working individually or coordinating database development as part of a team.
May supervise computer programmers.
Inspects, cleans, transforms, and models data to highlight useful information, suggest conclusions, and support decision making.
Develops software planning documentation, requirements and design documentation, support documentation, test description documentation.
Conducts software validation and verification, and software engineering anomaly resolution.
Performs tasks in accordance with applicable DoD guidance and industry standards.
Performs installation, demonstration, test, validation and evaluation of software tools, methods, and measurement technologies.
Performs computer network exploitation development.
Evaluates the quality of software systems and solutions.
Performs needs and risk analysis of software packages relative to mission requirements.
Develops, updates, and evaluates software engineering standards, specifications, handbooks, or manuals for the development and testing of cyber capabilities.
Documents verification and validation of solutions and protocols, and provides technical assistance to user organizations on software acquisition.
Develops life cycle models and customizes software analytical tools, models, decision aids, screening methods, and techniques used to evaluate and support the authenticity and continuity of information systems.
Develops specialized software/firmware modules.
Disassembles and analyzes software and embedded firmware.
Collaborates with Cyber Innovation Unit.
Develops, creates, and modifies general computer applications software or specialized utility programs.

Requirements

What you’ll need

Active TS/SCI W/ Polygraph
15+ years of related professional experience in a technical engineering discipline
Bachelor's degree in Computer Science, Computer Engineering, or related technical field
Proven ability to lead a project team
Strong command of advanced engineering principles and software development theories
Excellent written and oral communication skills
Ability to troubleshoot production issues under pressure and tight deadlines
Proficiency developing software in one or more operating environments (Windows, Linux, etc.)
Proficiency with Microsoft Office applications
Excellent time management and organizational abilities
Preferred Qualifications: Master’s degree preferred

Benefits

Comp & perks

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
Holidays

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Software DevelopmentDatabase DesignSoftware Validation and VerificationData AnalysisSoftware Planning DocumentationCyber Capabilities DevelopmentSoftware Engineering StandardsEmbedded Firmware AnalysisComputer Network Exploitation DevelopmentTroubleshooting Production Issues

Soft Skills

Excellent Written and Oral Communication SkillsTime ManagementOrganizational AbilitiesAbility to Work Under PressureLeadership