Systems Engineer Expert

Leidos Holding$131K — $237K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI with Polygraph security clearance
  • Bachelor of Science (BS) degree with 12+ years of relevant experience
  • Proficient in Linux operating systems, especially via command line interface (CLI)
  • Skilled in scripting/programming with BASH and Python
  • Experience in Agile team environments
  • Hands-on experience with system scripting

Responsibilities

  • Ensure system designs align with target architecture and specific segment requirements
  • Integrate firewall and network components into existing systems and services
  • Collaborate with security engineers to resolve security vulnerabilities identified during scans
  • Configure, patch, and maintain Linux operating systems
  • Propose risk mitigation strategies based on system analysis
  • Facilitate the integration of varied systems and services

Benefits

  • Supportive team environment within a large technical development program
  • Ability to work in a secure cloud-based application environment
  • Opportunities for professional growth and skills enhancement
  • Engagement in critical security and network integration tasks
  • Flexible work hours accommodating core business schedule
Full Job Description
Leidos is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Enterprise PKI System as well as IdAM IICAM, Authentication, Authorization, Attributes and Digital Policy Management. This position is for a Systems Engineer supporting two Cloud-based applications, and their associated cloud infrastructures located on a secure network. The Systems Engineer will work with a large team of developers, software engineers, cybersecurity engineers, database administrators, and system architects.

The systems engineer will be required to carry a duty phone on a rotational basis (once they have one year of experience on the team) and may need to come in to address system issues that arise. Core business hours are typically from 9 AM - 3 PM, five days a week.

*** Applicants for this position are expected to have significant hands-on systems engineering experience with specifically in creating, prioritizing, analyzing, documenting, validating, and managing project requirements. ***

Primary Responsibilities
  • Ensure designs are compatible with target architecture and consistent requirements allocated to segments
  • Integrate systems and services for firewall and network components
  • Working with the team's security engineer to address and mitigate security findings stemming from system security scans
  • Linux OS configuration, patching, and maintenance
  • Identify and suggest risk mitigation techniques
  • Integrate systems and services


Required Qualifications:
  • Active TS/SCI with Polygraph
  • Bachelor of Science (BS) degree and 12+ years of demonstrable experience. Additional experience in lieu of degree
  • Strong, hands-on experience with Linux (CLI)
  • Experience with scripting and programming languages like BASH and Python
  • Experience in working on teams utilizing Agile workflows and processes
  • Hands on experience with scripting


Desired Qualifications:
  • Experience working with CloudFormation / Puppet / Groovy, or other configuration and automation tools
  • Network engineering troubleshooting between Cloud environments and non-Cloud environments
  • Experience working with Infrastructure as Code (IaC) solutions such as Ansible / Terraform, or other configuration and automation tools
  • Solid understanding of Web Application Firewall (WAF) configuration and management
  • Experience with networking (e.g., ports, routing tables, subnets, VPNs, firewalls, routers, etc.) to include design, integration and troubleshooting issues
  • Experience in working in a cloud-based environment (AWS)
  • Experience with the installation, configuration of AIDE and other configuration management alerting capabilities
  • Experience with maintaining COTS products (e.g., Oracle Enterprise Manager (OEM), Nexus, Jenkins)


FIP

Original Posting:
August 11, 2026

Pay Range:
Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level 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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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