Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Cyber Security Engineer III

Temporary

System One

Job Title: Cyber Security Engineer
Location: St. Louis, MO
Work Model: Onsite
Position Type: 6 Month Contract to Hire
Clearance Requirement: Active TS/SCI required and ability to obtain poly

Job Summary

We are seeking a Cyber Security Engineer to support a mission critical NGA cybersecurity program in St. Louis, MO. This role will provide cyber threat intelligence, advanced cybersecurity analytics, security operations support, and incident response coordination across government systems and networks.

The Cyber Security Engineer will collect, analyze, and distribute threat intelligence from government sources, commercial feeds, open source reporting, and partner organizations to improve situational awareness of the cyber threat environment. This role will also support cybersecurity analytics, reporting, detection tuning, operational recommendations, and security monitoring activities for customer systems and networks.

This is a strong fit for someone with hands on cyber operations experience across HBSS, firewalls, IDS, IPS, VPNs, network security tools, threat intelligence, incident analysis, and cybersecurity reporting.

Key Responsibilities

Provide cyber threat intelligence support, including the collection, fusion, analysis, creation, and distribution of threat intelligence from government entities, commercial feeds, open sources, and partner organizations.

Develop and disseminate threat reports, tippers, and situational awareness products to internal and external stakeholders based on events, alerts, and incidents affecting customer systems and networks.

Perform advanced cybersecurity analytics by aggregating and analyzing security data, products, and information to identify trends, patterns, anomalous activity, and potential threats.

Provide operational recommendations, visualizations, tuning requests, and custom signature creation to the CSOC and other stakeholders.

Implement and monitor security measures for communication systems and networks while ensuring systems and personnel follow established security standards and government requirements.

Support network security activities involving HBSS, firewalls, Intrusion Detection Systems, Intrusion Prevention Systems, VPNs, and other point of presence security tools.

Conduct performance analysis of information systems security incidents and support security incident response activities.

Support Network Intrusion Detection and Forensics activities.

Assist with Continuity of Operations and Disaster Recovery planning.

Support certification activities for information systems and networks.

Provide cybersecurity services during core 12x5 support hours and participate in on call support with a two hour response requirement during non core hours.

Support Public Key Infrastructure, Electronic Key Management System operations, and other information security duties as needed.

Develop new concepts, processes, and solutions to improve cybersecurity operations.

Analyze root causes, resolve technical issues, and provide guidance to junior technicians and specialists.

Work individually, participate on integrated teams, and potentially lead tasks, projects, or small teams.

Required Qualifications

Active TS/SCI clearance.

U.S. Citizenship.

Bachelor’s degree in a technical field such as Information Technology, Information Systems, Computer Science, Cybersecurity, or a related discipline.

Equivalent experience may be considered as follows:

High School diploma or GED with 10 years of relevant cybersecurity experience.

Associate degree with 8 years of relevant cybersecurity experience.

Bachelor’s degree with 6 or more years of relevant cybersecurity experience.

Experience working in cybersecurity operations with tools and technologies such as HBSS, firewalls, Intrusion Prevention Systems, Intrusion Detection Systems, VPNs, and related security operations platforms.

Experience supporting cybersecurity monitoring, analysis, threat intelligence, incident response, or security operations center environments.

Ability to analyze cybersecurity events, alerts, incidents, and threat reporting to identify risks and provide actionable recommendations.

Preferred Qualifications

IAT Level III certification.

DoD 8140.01 and DoD 8570.01-M IAT Level III certification.

CSSP Analyst certification.

Ability to obtain required DoD 8140 / 8570 certifications within 6 months of starting if not already held.

Master’s degree in a technical field.

TS/SCI with Polygraph.

Experience supporting NGA, DoD, intelligence community, or mission critical federal cybersecurity environments.

Experience creating cyber threat reports, tippers, custom signatures, tuning recommendations, or operational threat intelligence products.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

#M1

#LI-CS1

Ref: #856-Baltimore-S1


System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Cyber Security Engineer III in Saint Louis, MO vacancy
  •  ...Job Title: Cyber Security Engineer Location: St. Louis, MO Work Model: Onsite Position Type: 6 Month Contract to Hire Clearance...  ...actionable recommendations. Preferred Qualifications IAT Level III certification. DoD 8140.01 and DoD 8570.01-M IAT Level... 
    Suggested
    Contract work
    Local area

    System One

    Saint Louis, MO
    a month ago
  • $120.64k - $197.6k

    Overview This position plays a hands-on role securing systems that support critical Defense and Intelligence missions. This position is focused on applying risk management frameworks, engineering security controls, and maintaining system authorizations for cloud and on... 
    Suggested
    Full time
    Relocation
    Relocation package

    Esri

    Saint Louis, MO
    1 day ago
  • $75.2k - $158.1k

    Job Title: Cyber Security Engineer - NSS Tools Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity... 
    Suggested
    Full time
    Contract work
    Work experience placement
    Local area
    Remote work
    Flexible hours

    CACI International

    Saint Louis, MO
    5 days ago
  •  ...and serve humanity. Job Summary The Facility Electrical Engineer III Project Manager will be subject matter expert for all aspects...  ...~ Ability to obtain and maintain a Top Secret/SCI government security clearance with polygraph is required. Knowledge, Skills,... 
    Suggested
    For contractors
    Work at office
    Flexible hours

    ServiceSource

    Saint Louis, MO
    2 days ago
  • $85k - $115k

     ...Job Description Job Description Position: Electrical Engineer III Location: Lakewood, CO / Fort Collins, CO / Avon, CO / Belleville...  ...designed to promote employee health, wellness, and financial security. Our offerings include medical, dental, and vision plans, employee... 
    Suggested
    Flexible hours

    RTM Engineering Consultants, LLC

    Saint Louis, MO
    25 days ago
  • $80k - $95k

     ...design, and construction management services to water, sewer, and utility districts and municipalities. We are seeking a Project Engineer (III/IV) in Water/Wastewater to serve our clients and community. This role requires expertise in designing treatment facilities,... 
    For contractors
    Local area
    Flexible hours

    Gonzalez Companies LLC

    Saint Louis, MO
    2 days ago
  • $70.5k - $80.5k

     ...Crawford, Murphy & Tilly is seeking a Civil Engineer III with a background in traffic and safety engineering to join our Surface Transportation group in the St. Louis, MO office. This is not a remote position. We are a fast-growing firm with 500+ employees across... 
    Work experience placement
    Work at office

    Crawford Murphy and Tilly, Inc.

    Saint Louis, MO
    2 days ago
  • $100k - $140k

     ...Electrical Engineer III At Industrial Ally, A Salas O'Brien Company, we tell our clients that we're engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That's why we're committed to living our values... 
    Local area
    Visa sponsorship
    Relocation package

    Salas O'Brien

    Wildwood, MO
    5 days ago
  • $85k - $115k

     ...Job Description Job Description Position: Mechanical Engineer III Location: Seattle, WA / Newport, KY / Orlando, FL / Belleville,...  ...designed to promote employee health, wellness, and financial security. Our offerings include medical, dental, and vision plans, employee... 
    Flexible hours

    RTM Engineering Consultants, LLC

    Saint Louis, MO
    25 days ago
  •  ...Company Description CRB is a leading provider of sustainable engineering, architecture, construction and consulting solutions to the...  ...and execution. Job Description As a Mechanical Engineer III, you’ll play a key role in designing mechanical systems for complex... 
    For contractors

    CRB

    Saint Louis, MO
    14 days ago
  • $100k - $140k

     ...Job Description Job Description Process Engineer III We are a globally recognized Architecture, Engineering, and Construction (AEC) firm delivering innovative solutions for some of the world's most technically complex and highly regulated facilities. Our teams partner... 
    Ongoing contract
    Local area

    Cybercoders

    Saint Louis, MO
    2 days ago
  •  ...Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are currently seeking a Transportation Engineer (III/IV) to help serve our connection of clients and community. If you’re hungry for knowledge, ready to make a difference and... 
    Local area
    Flexible hours

    Gonzalez Companies

    Saint Louis, MO
    20 days ago
  • $92.3k - $166.85k

     ...motivated Senior Systems Administrator/Help Desk Engineer to support a cutting-edge Agile software...  ...role, you’ll ensure the stability, security, and performance of the environments that...  ...experience. DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+,... 
    Full time
    Contract work
    Shift work
    Day shift
    Afternoon shift

    Leidos

    Saint Louis, MO
    1 day ago
  •  ...Sr. Cyber Security Engineer N2W Cyber Security Engineer will serve as a member of the N2W Active IT and project team, providing systems engineering...  ...570.01-Manual for Information Assurance Manager (IAM) Level III CTIA or CISSP certifications Security Clearance:... 
    For contractors

    IC-CAP, LLC

    Saint Louis, MO
    2 days ago
  • Join to apply for the Cyber Security Analyst role at U.S. Air Force Reserve As a cyber warfare operations officer in the Air Force Reserve, you’ll serve at a base of your choosing while protecting our cyberspace infrastructure with your technical and analytical skills... 
    Full time
    Part time

    U.S. Air Force Reserve

    Saint Louis, MO
    1 day ago
  • $83.2k

     ...human life on Mars. FALL 2026 GRADUATE ENGINEER As a Graduate Engineer, you will be responsible...  ...resident (e.g., green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv)...  ...for delivering commercial, national security, and NASA satellites into orbit, as well... 
    Permanent employment
    Full time
    Work experience placement
    Internship
    Worldwide
    Relocation

    SpaceX

    Saint Louis, MO
    1 day ago
  • $50 per hour

     ...established cybersecurity team focused on protecting and maintaining secure operations across the organization. This role is fully onsite...  ...such as memory acquisition, disk imaging, and basic reverse engineering. The ideal candidate brings a strong foundation in... 

    Insight Global

    Saint Louis, MO
    2 days ago
  • $80k - $150k

     ...Come join the company reinventing data security, empowering businesses to realize the full...  ...that data security is the next big thing in cyber. Backed by the world's leading investors...  ...Join our team as a Security Engineer working within an agentic SOC environment... 
    Temporary work
    Work experience placement
    Work at office
    Remote work

    Cyera

    Saint Louis, MO
    2 days ago
  •  ...Description Perform geotechnical engineering and geological analyses and calculations. Prepare and write engineering and other reports...  ...would be placed at a Shannon & Wilson Professional I, II, III, or IV level. Shannon & Wilson is committed to providing a comprehensive... 
    Full time
    Part time
    Work experience placement
    Work at office
    Local area

    Shannon & Wilson

    Saint Louis, MO
    16 hours ago
  •  ...Looking to build your career with a company that values innovation , stability , and people ? Join our dedicated team as a R&D Engineer III - Mechanical, in Bridgeton, MO! Since 1946, Hunter Engineering has been aligning cutting-edge technology with a strong... 

    Hunter Engineering Company

    Bridgeton, MO
    4 days ago
  •  ...maps and plans. Extend estimates. Process project information in preparation for construction bidding. Perform related civil engineering work. May investigate storm water, sanitary, and combined sewer complaints and recommend solutions to problems. May make necessary... 
    Contract work
    For contractors

    Metropolitan St Louis Sewer District

    Saint Louis, MO
    2 hours ago
  • $198.4k - $342k

    We are seeking a highly technical Infrastructure Security Engineer to join our Public Sector Infrastructure & Security team. Our Infrastructure Security Engineers ensure the security and integrity of our platform. You will be responsible for securing large cloud environments... 
    Full time

    Scale AI

    Saint Louis, MO
    17 hours ago
  •  ...issues as backups and overflows, and make recommendations for maintenance and rehabilitation corrections; * Provide technical engineering support to Operations staff members; * Attend watershed meetings and coordinate communications between other divisions within MSD... 
    Full time

    Metropolitan St Louis Sewer District

    Saint Louis, MO
    2 hours ago
  •  ...Security Architect AI Location: ST Louis MO - Onsite only Duration: Contract Overview: Seeking a Senior AI Security Technical...  ...You'll Need: ~ Bachelor's degree in Computer Science, Engineering, or related field, or equivalent practical experience. ~8–12... 
    Contract work

    Pacer Group

    Saint Louis, MO
    5 days ago
  •  ...Product Security Engineer Lead the cybersecurity aspects of the full-lifecycle development and manufacturing and production of embedded...  ...programs. The candidates will lead and support system analysis for cyber threats, cyber test activities, cybersecurity of large scale... 

    Argyle Infotech

    Saint Louis, MO
    5 days ago
  • Accenture Federal Services is seeking an experienced Enterprise Security Architect in St. Louis to guide the strategic design,...  ...security architecture. The ideal candidate will have extensive IT and Cyber experience, focusing on secure design across all technology domains... 

    Accenture Federal Services

    Saint Louis, MO
    17 hours ago
  • $15.5 per hour

     ...Railroad Engineer Provide a welcoming environment and offering a safe recreational and educational experience on the Zooline Railroad and employee shuttles. Duties include light maintenance, cleaning and driving the train and shuttles, serving as conductor and platform... 
    Hourly pay
    Weekend work

    Saint Louis Zoo

    Saint Louis, MO
    2 days ago
  • $58k - $115.9k

    Job Title: Junior Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start...  ...checklists, and standards. Qualifications: Required: * Security Clearance (TS/SCI) with ability to obtain Polygraph *... 
    Full time
    Contract work
    Work experience placement
    Internship
    Flexible hours

    CACI International

    Saint Louis, MO
    9 hours ago
  • $96k - $144k

    Edgewell Personal Care is looking for a Global IT Endpoint Administrator to manage and support mobile device management (MDM) platforms, enhancing user experiences across the organization. This hybrid role involves troubleshooting, ensuring policy compliance, and participating...

    Edgewell Personal Care

    Wildwood, MO
    16 hours ago
  • Job Responsibilities and Requirements · Experience in Dynatrace implementation, preferably in a service provider network, with strong UNIX/Windows knowledge. · Strong scripting knowledge in Shell, Python, etc. · Knowledge of Dynatrace agent deployment and configuration...

    TechDigital Group

    Saint Louis, MO
    17 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Cyber Security Engineer III. Be the first to apply!