Senior Software Engineer with Security Clearance

ClearEdge; Maryland; On-site; USD 140,000 - 170,000; Full time

Job summary

ClearEdge is seeking a Senior Software Engineer to architect, develop, maintain, and enhance complex software systems supporting our critical environments. You will work across the full software development lifecycle to deliver scalable analytics and enterprise applications.

You will collaborate with engineers, stakeholders, and customers to design high-performing solutions, implement reusable components, and mentor developers while driving technical direction and performance optimization.

Qualifications

• TS/SCI with polygraph clearance
• Fifteen (15) or more years of experience architecting, developing, and maintaining software solutions with an emphasis on performance optimization
• Bachelor’s or advanced degree in Computer Science, Computer Engineering, or a related technical discipline
• Five (5) additional years of experience may substitute for a Bachelors Degree
• Experience with all aspects of full-stack software development
• Experience with modern JavaScript frameworks such as React, Vue, or Angular
• Experience developing software using object-oriented languages such as Java and JavaScript
• Experience designing and developing modular, reusable software components
• Familiarity with Section 508 accessibility requirements

Responsibilities

• Designing, developing, and maintaining full-stack software applications
• Building reusable and modular software components that support multiple systems
• Developing user-facing applications using modern JavaScript frameworks
• Implementing and optimizing backend services using object-oriented programming principles
• Evaluating software architecture and recommending performance improvements
• Collaborating with engineers and stakeholders to define requirements and technical solutions
• Reviewing code, testing software components, and resolving software defects
• Supporting software delivery and sustainment through modern development practices

Skills

Full-stack development

Performance optimization

Mentoring

Team collaboration

Java & JavaScript OO

Education

Bachelor's or higher in CS/CE

Tools

Leaflet.js

Job description

As a Senior Software Engineer you will architect, develop, maintain, and enhance complex software systems supporting our critical environments. You will work across the full software development lifecycle, delivering scalable solutions for processing-intensive analytics, large data sets, real-time systems, and enterprise applications. In this role, you will collaborate with engineers, stakeholders, and customers to design high-performing software solutions, evaluate technical trade-offs, and implement reusable, modular components that support multiple applications and mission needs. Your expertise will help drive performance optimization, technical innovation, and long-term system sustainability.

You Will Excel in This Role If You

• Have extensive experience designing and developing full-stack software solutions
• Enjoy solving complex performance and scalability challenges
• Are proficient with modern JavaScript frameworks such as React, Vue, or Angular
• Have strong object-oriented development experience using Java and JavaScript
• Understand how to design modular, reusable software components
• Can balance technical excellence with customer-focused solution delivery
• Enjoy mentoring developers and influencing technical direction across teams

A Day in the Life

• Designing, developing, and maintaining full-stack software applications
• Building reusable and modular software components that support multiple systems
• Developing user-facing applications using modern JavaScript frameworks
• Implementing and optimizing backend services using object-oriented programming principles
• Evaluating software architecture and recommending performance improvements
• Collaborating with engineers and stakeholders to define requirements and technical solutions
• Reviewing code, testing software components, and resolving software defects
• Supporting software delivery and sustainment through modern development practices

What We Are Expecting From You

• TS/SCI with polygraph clearance
• Fifteen (15) or more years of experience architecting, developing, and maintaining software solutions with an emphasis on performance optimization
• Bachelor’s or advanced degree in Computer Science, Computer Engineering, or a related technical discipline
• Five (5) additional years of experience may substitute for a Bachelors Degree
• Experience with all aspects of full-stack software development
• Experience with modern JavaScript frameworks such as React, Vue, or Angular
• Experience developing software using object-oriented languages such as Java and JavaScript
• Experience designing and developing modular, reusable software components
• Familiarity with Section 508 accessibility requirements

Nice to Have

• Experience developing web-based geospatial applications using tools such as Leaflet.js
• Technical leadership, team lead, or mentoring experience
• Proactive technical customer service and stakeholder engagement experience
• Experience optimizing solutions across multiple applications, teams, or technology

ClearEdge is an established small business that values its employees and is committed to providing an environment where individuals can succeed and grow. We believe in developing our people, promoting from within, and fostering long-term career growth across the organization. Our Core Values of Honesty, Integrity, Loyalty, Fairness, Respect, Responsibility, and Accountability drive our mission and vision and are the heart of what we do each day. We combine our Core Values with the three key elements of people, technology, and integrity to repeatedly deliver stellar results within our primary competencies.

ClearEdge is an equal opportunity employer.