$80k - $104k
degree in Information Technology, Cybersecurity, Computer Science, Engineering, or equivalent practical experience. ~7+ years of hands-on... ...Engineering, Infrastructure Engineering, or Cloud Security. ~5+ years of dir…
Engineering & IT · St. Louis, MO
Security Engineer jobs in St. Louis, MO
Security engineers protect systems and data by finding vulnerabilities, building defenses, and responding to incidents. The work spans application security, infrastructure hardening, and threat detection.
115
Open roles today
$36–$93/hr
Typical pay range
$122k
Median, full-time
10
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Open security engineer roles
12 shown of 115 · sorted by freshness
$80k - $104k
Requirements: ~ Bachelors degree in Computer Science, Cybersecurity, Software Engineering, Information Technology, Engineering, or a related discipline. ~10+ years of experience in application security, secure software e…
$80k - $104k
04,000 per year Requirements: Bachelors degree in computer science, engineering, or a related discipline, or equivalent professional experience. At least 10 years of infrastructure security architecture experience in a c…
$80k - $104k
scalable, enterprise-aligned systems that support the target technology roadmap. Act as the technical liaison between Solution Engineers, Technical Architects, and delivery teams to ensure alignment and execution. Provid…
$80k - $104k
Salary: $80,000 - 104,000 per year Requirements: We require 7+ years of experience in platform engineering, software engineering, DevOps, systems integration, or a related technical area. We require 5+ years of experienc…
from increasingly sophisticated cyber and AI-driven threats, securing their AI transformation. Our prevention-first approach safeguards... ...What you bring to the table ~5+ years of engineering and pre-sales experience…
relationships, excel, and grow professionally in a strong culture of ownership.WSP is currently initiating a search for a Senior Geotechnical Engineer for our St. Louis, Missouri (Creve Coeur, MO) office. The candidate w…
$65k - $80k
valid drivers license and the ability to travel to client locations are required. Responsibilities: We design and implement secure, reliable networks for small and mid-sized businesses. We install and configure firewalls…
learn how you could help make great things possible not only in your community, but around the world.HDR is looking for Professional Engineers for various disciplines and in multiple locations across the country to join…
$92.82k - $109.2k
what you excel at—all from Day One.Job DescriptionThe Automation Engineer tests, creates, implements and supports robotics process and... ...you and your family boost your health, protect your financial security and give…
become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction... ...in the future. At AECOM, we are committed to maintaining a secure and trustworthy…
opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country... ...and tomorrow is smarter. Our work depends on a Sr. Network Engineer wi…
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What security engineers earn in St. Louis
Hourly first — that's how the offer arrives
| Experience | Hourly | Annual, full-time |
|---|---|---|
| Entry level | $36–$49 | $74k–$101k |
| Mid level | $49–$69 | $101k–$143k |
| Senior | $66–$93 | $138k–$193k |
Adjusted for the St. Louis market from national ranges.
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What employers ask for
The skills these listings keep naming
Threat modelingOWASP and web app securityNetwork and cloud securityIncident responseScripting (Python, Bash)SIEM and detection toolingIdentity and access managementVulnerability managementExplaining risk to non-experts
04
Interview questions worth rehearsing
With the thing the interviewer is actually listening for
Walk me through how you would threat model a new feature.
Use a structure — assets, entry points, attacker goals — and show that you rank risks rather than listing everything. STRIDE is a fine scaffold if you actually apply it.
You find a critical vulnerability in production. What are your next steps?
Verify, assess exposure, contain, and coordinate disclosure and fix — with communication throughout. Panic-free process is the whole answer.
Explain a recent vulnerability class or breach and what you took from it.
Staying current is part of the job. Pick something real, explain the root cause simply, and connect it to a defense you would build.
How do you get developers to fix security issues they see as low priority?
Show empathy for delivery pressure: translate risk into business impact, make fixes easy, and build guardrails so the secure path is the default.
How would you secure a cloud environment from scratch?
Cover identity first, then network segmentation, logging, encryption, and automated policy checks. Saying 'IAM is where most cloud breaches start' shows you know the terrain.
What is the difference between authentication and authorization, and where do systems commonly get it wrong?
Define both crisply, then give a real failure mode like broken object-level authorization. The follow-through example is what distinguishes the answer.
Tell me about a security control you built or improved.
Describe the risk it addressed and evidence it worked — findings reduced, detection time improved. Controls without measurement are just hopes.
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Resume tips that move the needle
For security engineers specifically — generic advice costs you here
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Lead with concrete defensive wins: vulnerabilities remediated, detection coverage added, incident response times improved.
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List relevant certifications (Security+, OSCP, CISSP) prominently; this field still screens on them.
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Name the domains you cover — appsec, cloud security, detection — since 'security' alone is too broad to place you.
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Mention responsible disclosures, CTF results, or published research if you have them; they are strong credibility signals.
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Show you can work with engineers, not just audit them — secure code reviews, training, or paved-road tooling you built.
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Where this role goes
Typical progression
01
Security Analyst
02
Security Engineer
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Senior Security Engineer
04
Security Architect
05
CISO
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