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Modern Technology Solutions, Inc. (MTSI)

Systems Engineer

On site

Chantilly, United states

Junior

Freelance

18-01-2026

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Skills

Communication Leadership Python JavaScript TypeScript Risk Management CI/CD Configuration Management Version Control Test Quality Assurance Attention to detail Effective Communication Architecture Database Management Programming Software Development Project Management

Job Specifications

As a Systems Engineer with MTSI you will provide technical leadership in the development, documentation, and integration of design specifications, system requirements, engineering management plans, implementation planning, and test plans as part of a team with senior executives, project managers, data scientists, and engineers to ensure the technical integrity of assigned missions.

Essential Job Functions

System Design and Architecture:
Develop and design system architecture and software solutions based on requirements and specifications.
Create detailed design documents, including diagrams and models, to guide development.
Requirements Analysis:
Collaborate with stakeholders to gather, analyze, and document functional and non-functional requirements.
Ensure that requirements are clear, complete, and consistent.
Software Development:
Write, test, and maintain high-quality code for software systems.
Utilize various programming languages and tools to develop software components and modules.
Satellite Modeling
Model satellite systems including sensor operations
System Integration:
Integrate software components and third-party applications into the overall system.
Ensure seamless communication and interoperability between different system parts.
Testing and Quality Assurance:
Develop and execute test plans to verify the functionality, performance, and security of software systems.
Identify and fix defects and issues through rigorous testing processes.
Performance Optimization:
Monitor and analyze system performance to identify bottlenecks and areas for improvement.
Optimize the efficiency, scalability, and reliability of software systems.
Collaboration and Communication:
Work closely with cross-functional teams, including developers, testers, project managers, and stakeholders.
Communicate technical concepts and project status effectively to both technical and non-technical audiences.
Continuous Improvement:
Stay updated with the latest technologies, tools, and industry trends.
Advocate for and implement process improvements and best practices.
Risk Management:
Identify and manage risks associated with software development and system operations.
Develop mitigation strategies to address potential issues.
Project Management:
Plan and manage software development projects, including task allocation, scheduling, and tracking progress.
Ensure that projects are delivered on time, within scope, and within budget.

Required Qualifications And Skills

2+ years work experience in programs and contracts of similar scope, type, and complexity within the Federal Government.
Proficiency in programming languages such as JavaScript, TypeScript, and Python
Strong Understanding of software development tools, frameworks, and libraries
Proven problem solver
Experience with database management and data modeling
Experience in satellite and sensor modeling
Experience to (or familiarity with) DevSecOps [or at least CI/CD]
Strong skills in designing and implementing system architectures and software solutions
Experience with version control systems and configuration management tools
Demonstrated leadership, communication, and teaming abilities. Highly organized with strong attention to detail.
Effective communication and interpersonal skills.
Self-starter, able to take initiative and accomplish work independently with minimal guidance.
Willingness to learn new skills and adapt to change

Education Requirements

A Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required

Certifications Desired

COMPTIA Security + / CISSP DESIRED

Clearance Requirements

TS/SCI clearance and consent to CI Polygraph
U.S. Citizenship is required for this position.

Work Location:

Chantilly VA (in person, full time)

For additional company information, please visit: www.mtsi-va.com

About the Company

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of global importance in the critical mission areas of missile defense, cyber security, intelligence, unmanned/autonomous systems, aviation, space, and homeland security. The MTSI mission is to make important and lasting contributions to the nation's defense and security by providing leadership and best- value solutions to solve America's most technicall... Know more