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Software Engineer Level 3 Fort Meade, MD TS/SCI with FULL SCOPE

SNS One, Inc. · Fort Meade, MD

Greenhouse Posted Jun 9, 2026 First seen Jun 9, 2026

Software Engineer

Location: Columbia, MD
Job Type: Full-Time
Experience Level: Senior
Security Clearance: Active TS/SCI with Full Scope Polygraph Required
Salary Range: $150,000 - $250,000

Position Overview

SNS One is seeking an experienced Software Engineer to support mission-critical programs in a highly secure environment. The selected candidate will develop, maintain, and enhance complex software systems supporting large-scale data processing, advanced analytics, real-time operations, and enterprise applications. This role requires expertise in modern software engineering practices, Kubernetes-based platforms, automation, and secure software development methodologies.

The ideal candidate will possess extensive experience designing and developing scalable software solutions, implementing high-performance algorithms, integrating applications across diverse environments, and supporting cloud-native and containerized infrastructures.

Duties and Responsibilities

  • Develop, maintain, and enhance complex software systems, including processing-intensive analytics, real-time systems, large-scale data processing platforms, and business management information systems.
  • Design, code, test, and integrate software solutions based on documented requirements and mission objectives.
  • Design and implement complex data interfaces and execute queries against existing and proposed repositories to support data accessibility and system functionality.
  • Develop and implement high-performance algorithms and scalable software architectures.
  • Analyze workflows, business processes, and system performance to develop technical solutions and recommend improvements.
  • Review, test, and validate software components to ensure compliance with design specifications and performance requirements.
  • Investigate, troubleshoot, and resolve software defects, performance issues, and operational problems.
  • Create, review, and maintain technical documentation, software designs, and testing procedures.
  • Participate in system architecture discussions, including hardware/software trade studies and design decisions.
  • Evaluate and integrate Commercial Off-The-Shelf (COTS) and Government Off-The-Shelf (GOTS) technologies when appropriate.
  • Perform requirements analysis and decomposition from system-level requirements to individual software components.
  • Collaborate with engineering teams, management, and customers to communicate technical solutions and project status.
  • Support Agile development processes and participate in sprint planning, reviews, and documentation activities.

Required Qualifications

  • Twenty (20) years of experience as a Software Engineer supporting programs and contracts of similar scope, type, and complexity.
  • Bachelor's degree in Computer Science or a related discipline from an accredited college or university. Four (4) additional years of software engineering experience may be substituted for a bachelor's degree.
  • Active TS/SCI with Full Scope Polygraph.
  • One of the following certifications:
    • CompTIA Security+ CE
    • CCNA Security
    • CySA+
    • GICSP
    • GSEC
    • CND
    • SSCP
  • Hands-on experience operating or platform engineering production-grade Kubernetes clusters.
  • Strong understanding of containerization technologies and security concepts, including Pod Security Standards.
  • Working knowledge of PKI certificate management and Public Key Infrastructure (PKI).
  • Experience implementing GitOps workflows and CI/CD pipelines.
  • Basic Linux system administration experience.
  • Experience with Python and Bash scripting.
  • Experience using Jira and Confluence for project management, task tracking, and technical documentation.

Desired Qualifications

  • Experience supporting cloud-native applications and container orchestration platforms.
  • Experience with DevSecOps methodologies and secure software development practices.
  • Familiarity with infrastructure automation and configuration management tools.
  • Experience supporting mission-critical government or DoD programs.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent verbal and written communication skills.

Benefits

  • Competitive salary ranging from $150,000 to $250,000 based on experience, qualifications, and mission requirements.
  • Medical, dental, and vision coverage.
  • 401(k) with company contribution.
  • Paid Time Off and paid holidays.
  • Professional development and training opportunities.
  • Opportunity to support high-impact national security missions.

At SNS One, Inc., we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, sex, pregnancy (including childbirth, lactation and related medical conditions), national origin, age, physical and mental disability, marital status, sexual orientation, gender identity, gender expression, genetic information (including characteristics and testing), military and veteran status, and any other characteristic protected by applicable law. SNS One, Inc. believes that diversity and inclusion among our teammates is critical to our success as a company, and we seek to recruit, develop and retain the most talented people from a diverse candidate pool.