1

Cryptographic Engineer Jobs in Illinois (NOW HIRING)

IL · On-site

$80K - $120K/yr

Perform COMSEC Account Management to maintain a USTRANSCOM Cryptographic COMSEC Equipment Account ... ing services, and professional services. We integrate emerging technology, rapidly and securely ...

VP, Authentication Services

Chicago, IL · On-site

$155K - $260K/yr

Author secure production grade authentication patterns, zero-trust reference architectures, and cryptographic policy playbooks. * Operational Leadership: Manage a 24/7 engineering and operations team ...

Showing results 41-60

Cryptographic Engineer information

See Illinois salary details

$30K

$92.8K

$123.5K

How much do cryptographic engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for cryptographic engineer in Illinois is $92,829.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,500.00 and $112,400.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a cryptographic engineer?

To thrive as a Cryptographic Engineer, you need a deep understanding of mathematics, cryptographic algorithms, and computer science, typically supported by a relevant degree in computer science, mathematics, or a related field. Familiarity with cryptographic libraries, security protocols, programming languages like C/C++ or Python, and certifications such as CISSP or CEH are commonly required. Strong analytical thinking, attention to detail, and effective problem-solving skills set standout professionals apart in this role. These competencies are essential to design, implement, and maintain secure systems that protect sensitive data and ensure organizational trust.

What are some common challenges faced by cryptographic engineers when implementing new encryption protocols in a production environment?

Cryptographic Engineers often encounter challenges such as ensuring compatibility with existing systems, maintaining performance while integrating robust security measures, and staying ahead of evolving cyber threats. Implementing new protocols may also require extensive testing to avoid vulnerabilities and ensure compliance with industry standards. Effective collaboration with software developers and IT teams is crucial to ensure seamless deployment and minimize potential disruptions to business operations.

What does a cryptographic engineer do?

A cryptographic engineer designs, develops, and implements encryption algorithms and security protocols to protect data confidentiality and integrity. They analyze cryptographic systems, stay updated on security vulnerabilities, and often work with programming languages like C or Python, as well as cryptography tools and standards. Their work is essential in securing communications, financial transactions, and sensitive information across various industries.

What are popular job titles related to Cryptographic Engineer jobs in Illinois?

For Cryptographic Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Cryptographic Engineer jobs in Illinois look for?

The top searched job categories for Cryptographic Engineer jobs in Illinois are:

What cities in Illinois are hiring for Cryptographic Engineer jobs?

Cities in Illinois with the most Cryptographic Engineer job openings:

Infographic showing various Cryptographic Engineer job openings in Illinois as of August 2026, with employment types broken down into 88% Full Time, 9% Part Time, and 3% Contract. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $92,829 per year, or $44.6 per hour.

Transport Network Engineer II

Leidos

Scott Air Force Base, IL • On-site

$59K - $106K/yr

Full-time

Medical, Retirement, PTO

Posted 16 days ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 153 frontline employees who took The Breakroom Quiz

80th of 500 rated business services


Job description

Description

Our customer, the Defense Information Systems Agency (DISA-GLOBAL) at Scott AFB, il provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations. This position directly supports the DISA-provided capabilities and services.

The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for a Transport Network Engineer.  The Transport Network Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense networks.

Responsible for performing the following duties:
Network design and engineering

  • Perform network management system design, develop Methods of Procedure, analysis, testing and/or modifications of architecture in support of software/hardware technical refresh and upgrades approved by the Engineering Review Board.
  • Implement new network hardware (shelves, cards) on operational nodes.
  • Deploy network changes - monitor for any impacts to customer traffic using provided expectations of traffic behavior, lessons learned, and customer reporting. 
  • Recommend to manager best practices for the operation and maintenance of the network.
  • Provide ad-hoc engineering support, statistics/data gathering, modeling, creating/updating flowcharts and providing recommendations to determine the most efficient configuration of the network based on Engineering documents and experience.
     

Provide Engineering Incident Management Escalation Support

  • Perform fault isolation, analysis, and troubleshooting across various Transport platforms including SONET Optical/Fiber Transport (ODXC/MSPP), Dense Wavelength Division Multiplexing (DWDM), Time Division Multiplexing (TDM), and cryptographic systems.
  • Engage with other Engineers (Transport, IP and Unified Capabilities), vendors, and customers to determine Root Cause Analysis.
  • Update ServiceNow tickets with accurate documentation
  • Provide situational awareness reporting to customer and management.
  • Provide accuracy in documenting the Mission Support Services (MSS) database to reflect the real time network. 
  • Support Authorized Service Interruption (ASI) Activities to collect site and device data to schedule maintenance windows, coordinating dispatch of technicians, and identifying availability of site personnel. 
  • Interact with Problem Coordinator and Government customer for troubleshooting and resolution of Problem Management candidate tickets.
  • Interact with vendor Technical Assistance Center (TAC) personnel to gather needed data to create hardware replacement order.

Basic Qualifications:

  • Currently possess an active Secret security clearance.
  • Currently possess DoD 8750 certification at IAT level II, Security+ CE or equivalent to meet requirement.
  • Proficient in one or more Transport platforms: CIENA 6500, CIENA Corestream, Cisco NCS2K, CISCO MSPP 15454/15310, SYCAMORE ODXC 16K/9K, XTERA, and other ancillary equipment.
  • Experience analyzing section, line, and path events on Optical networks 
  • Experience with end-to-end system loopback testing and troubleshooting on Transport networks.
  • Exposure to troubleshooting, assessment, root cause analysis, and restoration of Optical networks.
  • Experience working with service providers and/or enterprise Transport systems utilizing CISCO/CIENA devices. 
  • Experience with ports and protocols for DWDM and SONET technologies.

Preferred Qualifications:

  • Equally proficient in Ciena and/or Cisco configuration, and troubleshooting, and design
  • Experience with Power systems and Network Timing
  • Experience with Dense Wavelength Division (DWDM) and Synchronous Optical Networks (SONET)
  • Possess understanding of Physical (Layer 1) and Data Link (Layer 2) network troubleshooting.
  • CIENA 6500 configuration, troubleshooting, and design experience.
  • CISCO 4200 configuration, troubleshooting, and design experience
  • CISCO NCS2K configuration, troubleshooting, and design experience.
  • Crypto configuration, troubleshooting and design experience.
  • Physical cable plant and wiring experience.
  • Excellent project, technical, interpersonal, presentation and problem management skills.
  • Extensive network integration experience for a variety of network protocol standards.
  • Ability to communicate orally, and in writing, detailed technical information on troubleshooting and implementation efforts.
  • Familiarization of DOD regulations and directives.

Required Education and Experience:

Requires BS degree and 2-4 years of prior relevant experience or Masters with less than 2 years of prior relevant experience. (Or equivalent combination of education and/or experience.)

GSMO

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:August 17, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $59,150.00 - $106,925.00

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

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.


What Leidos employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Leidos logo

About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

Social media