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Expert Systems Engineer - Careers at Leidos

Leidos

Expert Systems Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Expert Systems Engineer at Leidos

Join Leidos as an Expert Systems Engineer in Chantilly, VA, where you'll drive innovative hardware and software solutions for enterprise IT systems. Maintain awareness of technical trends, ongoing projects, and business requirements while applying project management models like Spiral, Waterfall, or Agile.

Key Responsibilities

  • Develop end-to-end cost analysis and ensure compliance with enterprise architecture.
  • Design robust PKI systems handling digital certificates, CAs, RAs, key management, cryptographic algorithms, revocation, and trust models.
  • Create block diagrams, logic flows, and translate designs into efficient software using object-oriented languages.
  • Test, debug, document, and enhance software for optimal performance and reuse.
  • Lead functional analysis, timeline analysis, trade studies, and requirements allocation to deliver total systems solutions under technical, schedule, and cost constraints.
  • Configure and maintain cloud IT infrastructure, coordinating system integrations for compatibility and data sharing.
  • Provide technical guidance, supervise teams, and prepare for CIO project gates while updating senior management.

Required Qualifications

  • Bachelor's degree + 12 years' experience (or equivalent).
  • Expertise in PKI and database tools.
  • Proven ability in software engineering, business process modernization, and strategic systems planning.

Why Leidos?

Work on cutting-edge defense and intelligence projects with a salary range of $131,300 - $237,350. Enjoy comprehensive benefits, career growth, and a collaborative environment focused on innovation and mission success. Apply your skills to real-world challenges in a full-time, mid-to-senior level role.

Locations

  • Chantilly, Virginia, United States

Salary

131,300 - 237,350 USD / yearly

Estimated Salary Rangehigh confidence

131,300 - 237,350 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Public Key Infrastructure (PKI)intermediate
  • Digital Certificates & Certificate Authoritiesintermediate
  • Cryptographic Algorithmsintermediate
  • Key Management Practicesintermediate
  • Object-Oriented Programmingintermediate
  • Cloud Infrastructure Designintermediate
  • Agile/Waterfall Project Managementintermediate
  • Software Configuration Managementintermediate
  • CASE Toolsintermediate
  • Data Flow Diagramsintermediate

Required Qualifications

  • Bachelor's degree and 12+ years' experience (additional experience in lieu of degree) (experience)
  • Strong knowledge of PKI concepts including CAs, RAs, revocation procedures, and trust models (experience)
  • Proficiency in database user interface and query software (experience)
  • Experience with enterprise IT trends and business unit requirements (experience)
  • Ability to perform cost analysis, functional analysis, and trade studies (experience)

Responsibilities

  • Develop block diagrams, logic flow charts, and translate designs into software
  • Test, debug, refine software, and prepare program/user documentation
  • Apply business process improvement and re-engineering methodologies
  • Perform functional analysis, requirements allocation, and interface definition
  • Design, configure, and maintain cloud-based IT infrastructure
  • Estimate software costs/schedules and supervise configuration management
  • Provide technical direction to teams and assist with problem resolution

Benefits

  • general: Competitive salary range $131,300 - $237,350
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) matching and retirement plans
  • general: Professional development and tuition reimbursement
  • general: Flexible work arrangements and paid time off
  • general: Employee stock purchase plan and performance bonuses

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Leidos logo

Expert Systems Engineer - Careers at Leidos

Leidos

Expert Systems Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Expert Systems Engineer at Leidos

Join Leidos as an Expert Systems Engineer in Chantilly, VA, where you'll drive innovative hardware and software solutions for enterprise IT systems. Maintain awareness of technical trends, ongoing projects, and business requirements while applying project management models like Spiral, Waterfall, or Agile.

Key Responsibilities

  • Develop end-to-end cost analysis and ensure compliance with enterprise architecture.
  • Design robust PKI systems handling digital certificates, CAs, RAs, key management, cryptographic algorithms, revocation, and trust models.
  • Create block diagrams, logic flows, and translate designs into efficient software using object-oriented languages.
  • Test, debug, document, and enhance software for optimal performance and reuse.
  • Lead functional analysis, timeline analysis, trade studies, and requirements allocation to deliver total systems solutions under technical, schedule, and cost constraints.
  • Configure and maintain cloud IT infrastructure, coordinating system integrations for compatibility and data sharing.
  • Provide technical guidance, supervise teams, and prepare for CIO project gates while updating senior management.

Required Qualifications

  • Bachelor's degree + 12 years' experience (or equivalent).
  • Expertise in PKI and database tools.
  • Proven ability in software engineering, business process modernization, and strategic systems planning.

Why Leidos?

Work on cutting-edge defense and intelligence projects with a salary range of $131,300 - $237,350. Enjoy comprehensive benefits, career growth, and a collaborative environment focused on innovation and mission success. Apply your skills to real-world challenges in a full-time, mid-to-senior level role.

Locations

  • Chantilly, Virginia, United States

Salary

131,300 - 237,350 USD / yearly

Estimated Salary Rangehigh confidence

131,300 - 237,350 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Public Key Infrastructure (PKI)intermediate
  • Digital Certificates & Certificate Authoritiesintermediate
  • Cryptographic Algorithmsintermediate
  • Key Management Practicesintermediate
  • Object-Oriented Programmingintermediate
  • Cloud Infrastructure Designintermediate
  • Agile/Waterfall Project Managementintermediate
  • Software Configuration Managementintermediate
  • CASE Toolsintermediate
  • Data Flow Diagramsintermediate

Required Qualifications

  • Bachelor's degree and 12+ years' experience (additional experience in lieu of degree) (experience)
  • Strong knowledge of PKI concepts including CAs, RAs, revocation procedures, and trust models (experience)
  • Proficiency in database user interface and query software (experience)
  • Experience with enterprise IT trends and business unit requirements (experience)
  • Ability to perform cost analysis, functional analysis, and trade studies (experience)

Responsibilities

  • Develop block diagrams, logic flow charts, and translate designs into software
  • Test, debug, refine software, and prepare program/user documentation
  • Apply business process improvement and re-engineering methodologies
  • Perform functional analysis, requirements allocation, and interface definition
  • Design, configure, and maintain cloud-based IT infrastructure
  • Estimate software costs/schedules and supervise configuration management
  • Provide technical direction to teams and assist with problem resolution

Benefits

  • general: Competitive salary range $131,300 - $237,350
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) matching and retirement plans
  • general: Professional development and tuition reimbursement
  • general: Flexible work arrangements and paid time off
  • general: Employee stock purchase plan and performance bonuses

Target Your Resume for "Expert Systems Engineer - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Expert Systems Engineer - Careers at Leidos. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Expert Systems Engineer - Careers at Leidos" , Leidos

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Jobs in Chantilly, VALeidos CareersHiring in VirginiaPKI JobsGovernment ITEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Expert Systems Engineer - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.