Cyber Security Engineer III
System One
Job Description
Job Description
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
- Edward Jones seeks a Non-Human Identity Security Engineer III to design and enhance identity and access management for service accounts, bots, and application identities across our financial platforms. You will implement least-privilege access, automate lifecycle management...Suggested
$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 Network Defense...SuggestedFull timeContract workWork experience placementLocal areaRemote workFlexible hours$90k - $100k
ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED Reporting to the Lead of Focused Operations, under the Branch Chief of Defensive Cyber Operations, you will be tasked with developing and maintaining... ...8140.01 and DoD 8570.01-M IAT Level III and CSSP Analyst. Experience with...SuggestedWork experience placement- ...Cyber Security Operations Specialist III EOE Statement: We are an equal employment opportunity employer. All qualified applicants will receive consideration... ...security. TCS will provide innovative design, engineering, procurement, implementation, operations, sustainment...SuggestedFull timeContract workPart timeWorldwide
$78k - $86k
Cyber Threat Detection Engineer (SIEM / Signatures) Location: St. Louis, MO - on site Time Type: Full time... .... 8+ years of related advanced cyber security analytics experience. A certification... ...DoD 8140.01 and 8570.01-M IAT Level III and CSSP Analyst. Data mining or query...SuggestedFull timeContract work- ...Facility Electrical Engineer III Project ManagerMake an impact by joining ServiceSource, a champion for people with disabilities. Explore... ...preferred.Ability to obtain and maintain a Top Secret/SCI government security clearance with polygraph is required.Knowledge, Skills, and...For contractorsWork at officeFlexible hours
- ...Mechanical Engineer IIIAs a Mechanical Engineer III, you'll play a key role in designing mechanical systems for complex facilities while also taking ownership of project scope and mentoring junior team members. This is a great opportunity for an engineer who wants to...For contractors
- RISA is hiring a Cross Domain Engineer to provision dataflow in an Enterprise Cross-Domain System for an Intelligence Community customer, with end-to-end responsibility from design conversations to implementation and ongoing health of the system. The role demands direct...
$84.24k - $142.48k
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...RelocationRelocation package- RISA is hiring a Cyber Threat Detection Engineer (SIEM / Signatures) in St. Louis, MO on site. You will develop and tune detection logic, run Purple Team exercises, and collaborate with the Cyber Data Analytics team to improve SIEM efficiency. The role requires active TS...
$36 - $48 per hour
...Job Description Job Description Job Title: Quality Engineer III – Process Validation Job Description The Quality Engineer III – Process Validation plays a critical role in ensuring product quality and compliance across the entire lifecycle, from New Product Introduction...Contract workTemporary workMonday to FridayFlexible hours- ...bringing our Mission to life every day to enable our customers to make the world healthier, cleaner, and safer. As a Quality Engineer III within the Product Quality organization, you will play a key role in supporting quality assurance activities for clinical and commercial...Full timeWork at officeRelocation package
- ...Transportation Engineer (III/IV)Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We...
$101k - $111k
Cross Domain Solutions Engineer (CDS) Cybersecurity Engineering Specialist III - Enterprise Cross-Domain System Location: St. Louis, MO - on site Time Type: Full... ...Range: $101,000 - $111,000 Moving data between security domains, safely, at enterprise scale. RISA is hiring...Full timeContract workLocal area$75k - $95k
...Job Description Job Description Crawford, Murphy & Tilly is seeking a Traffic Civil Engineer III in our St. Louis office to support transportation projects that improve safety, mobility, and connectivity throughout the communities we serve. This role is ideal...Work experience placementWork at office$80k - $95k
...small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are currently seeking a Project Engineer (III/IV) - Water/Wastewater to help serve our connection of clients and community. If you're hungry for knowledge, ready to make a difference...$83.37k - $113.78k
...Operations Engineer III in GAC St. Louis Unique Skills: The compensation range for this role is $83,365 - $113,780 per year Final compensation for this role will be determined by several factors including but not limited to: minimum and preferred qualifications...Full timeShift work- Process Engineer III/ IV - Small Molecule/ Oligo/ Peptide CRB is a leading provider of sustainable engineering, architecture, construction and consulting solutions to the global life sciences and food and beverage industries. CRB is a privately held company with a history...Worldwide
- We are a globally recognized Architecture, Engineering, and Construction (AEC) firm delivering innovative solutions for some of the world'... ...Position Summary We are seeking a highly motivated Process Engineer III to support the planning, design, and implementation of process...
$40 - $55 per hour
Project Engineer III/IV - Water/Wastewater Department: Water/Wastewater Employment Type: Full Time Location: St. Louis, MO Compensation: $40.00 - $55.00 / hour Description Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and...Full timeFor contractorsLocal areaFlexible hours- Nidec Motor Corporation seeks a Design Engineer III to lead the design and development of complex motors and subsystems from concept through release. The role emphasizes advanced engineering judgment, cross-functional collaboration, and a strong impact on product performance...
$28 per hour
...schematics concerning plumbing and HVAC. Display above average engineering operations skills and strong general mechanical ability.... ...including readings and rounds. Follow all company and safety and security policies and procedures; report any maintenance problems,...Hourly payFull timeWork experience placementLocal areaShift work$90k - $110k
...Electrical Engineer IIILocation: Lakewood, CO / Avon, CO / Belleville, IL / Evansville, IN / St. Louis, MO / Milwaukee, WI / Schaumburg... ...package designed to promote employee health, wellness, and financial security. Our offerings include medical, dental, and vision plans,...Flexible hours$100k - $140k
...Electrical Engineer IIIAt Industrial Ally, A Salas O'Brien Company, we tell our clients that we're engineered for impact. This passion for... ...rewards along the way.Job Summary: The Electrical Engineer III provides expertise and support in a variety of areas including electrical...Local areaVisa sponsorshipRelocation package$84.2k - $148.5k
...mission and guiding principles. Preferred Qualifications Bachelor's degree Certifications / Professional Licenses Associate Systems Engineering Professional (ASEP) - International Council on Systems Engineering (INCOSE), Certified Systems Engineering Professional (CSEP) -...Work experience placementWork at office- Additional Information About the Role Join BJC as a Neurodiagnostic Technologist III with a top-ranked hospital! ~ Monday - Friday ~8AM - 4:30PM ~2-5 Years of Experience ~ High School Diploma or GED Required ~ MUST HAVE: Licenses & Certifications ~ CLTM /...Full timeMonday to FridayFlexible hours
- ...interested candidates to apply for future consideration. As a Systems Engineer, you will... Lead administration of Linux and Windows systems in secure, mission-critical environments. Provide Tier II/III technical support, resolving hardware, software, and user issues...Immediate start
- ...food is safe or helping find cures for cancer. Job Description How will you make an impact? We are searching for a Process Engineer 3- Floor Support with education and experience in biopharmaceutical processing or a related field. This member of our team...Full timeWork at office
- ...Job Description Job Description Imaging Service Engineer IIISt Louis, MO • Full-time • On-siteAbout Tri Imaging SolutionsTri Imaging... ...RoleTri-Imaging is seeking an experienced Imaging Service Engineer III (ISE III) to serve as a senior technical expert responsible for...Full timeTemporary workWork at officeLocal areaRemote workRelocationNight shift
- ...firm as a whole.Let’s talk about how you can find your place here at Stifel, where success meets success.What You'll Be DoingThe Security Engineer II - Cybersecurity Incident Response (CSIR) is a front-line member of the Cybersecurity Incident Response team that has...Day shift
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Cyber Security Engineer III. Be the first to apply!
- cyber sales Saint Louis, MO
- cyber Saint Louis, MO
- IT cyber security Saint Louis, MO
- cyber security intern Saint Louis, MO
- cybersecurity certificate Saint Louis, MO
- cybersecurity Saint Louis, MO
- remote cyber security Saint Louis, MO
- cyber security technician Saint Louis, MO
- cybersecurity administrator Saint Louis, MO
- senior cybersecurity engineer Saint Louis, MO



