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Senior Application Security Engineer Jobs in Missouri

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

What You'll Be Doing The AI-Application Security Engineer is responsible for implementing and scaling technical security controls and security processes across internally developed applications and ...

duvari group

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

Our customer is seeking an experienced AI Application Security Engineer to help build and mature security capabilities across modern cloud applications and AI-enabled solutions. This is a direct hire ...

Stifel

AI-Application Security Engineer

Saint Louis, MO

$57 - $76.25/hr

The AI-Application Security Engineer is responsible for implementing and scaling technical security controls and security processes across internally developed applications and AI-enabled systems.

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

What You'll Be Doing The AI-Application Security Engineer is responsible for implementing and scaling technical security controls and security processes across internally developed applications and ...

duvari group

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

Our customer is seeking an experienced AI Application Security Engineer to help build and mature security capabilities across modern cloud applications and AI-enabled solutions. This is a direct hire ...

Walmart

(USA) Staff, Application Security Engineer

Noel, MO · On-site

$110K - $220K/yr

Option 1: Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 4 years' experience in application security, or related ...

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All JobsApplication Security Engineer JobsSenior Application Security Engineer JobsSenior Application Security Engineer Jobs in Missouri

Senior Application Security Engineer information

See Missouri salary details

$68.9K

$128.6K

$174.9K

How much do senior application security engineer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior application security engineer in Missouri is $128,629.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,400.00 and $147,300.00 per year, depending on experience, location, and employer.

What is a senior application security engineer?

A Senior Application Security Engineer is responsible for ensuring the security of software applications by identifying vulnerabilities, implementing security best practices, and working with development teams to integrate secure coding principles. They conduct security assessments, perform threat modeling, and use security tools to detect and remediate risks. Additionally, they help establish security policies, oversee compliance with industry standards, and provide guidance to developers and stakeholders on security-related matters. Their goal is to protect applications from cyber threats while enabling business continuity and innovation.

What are the key skills and qualifications needed to thrive as a senior application security engineer?

To thrive as a Senior Application Security Engineer, you need a solid understanding of secure software development, threat modeling, vulnerability assessment, and a degree in computer science or a related field. Familiarity with tools like static and dynamic application security testing (SAST/DAST), code review platforms, and certifications such as CISSP or OSCP are often required. Strong analytical thinking, attention to detail, effective communication, and the ability to collaborate are standout soft skills for this role. These capabilities help ensure robust protection of applications, support safe software delivery, and enable effective teamwork across engineering and security teams.

What are the typical responsibilities of a senior application security engineer on a day-to-day basis?

A Senior Application Security Engineer typically spends their days reviewing application code for security vulnerabilities, performing threat modeling, and collaborating closely with development teams to ensure secure coding practices are followed. They may also lead security assessments, coordinate penetration tests, and work on developing or enforcing security policies within the organization. Regular interaction with cross-functional teams, such as DevOps and IT, is common to address security issues throughout the software development lifecycle. This role also often involves mentoring junior engineers and staying up to date with the latest security threats and technologies.

What are the most commonly searched types of Application Security Engineer jobs in Missouri? The most popular types of Application Security Engineer jobs in Missouri are:
What are popular job titles related to Senior Application Security Engineer jobs in Missouri? For Senior Application Security Engineer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Senior Application Security Engineer jobs in Missouri look for? The top searched job categories for Senior Application Security Engineer jobs in Missouri are:
What cities in Missouri are hiring for Senior Application Security Engineer jobs? Cities in Missouri with the most Senior Application Security Engineer job openings:
Senior Application Security Engineer jobs near you
Infographic showing various Senior Application Security Engineer job openings in Missouri as of August 2026, with employment types broken down into 82% Full Time, 14% Part Time, and 4% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $128,629 per year, or $61.8 per hour.

Sr. Application Security (AppSec) Architect - W2 Only

Info Dinamica Inc

Maryland Heights, MO • On-site

Other

Posted 6 days ago

Job description

Role: Sr. Application Security (AppSec) Architect
Location: Maryland Heights, MO
W2 Position
What are the top 3 skills required for this role? Application Security Architecture
Secure-by-Design Methodologies
Threat Modeling (STRIDE, Attack Trees, PASTA)
OWASP ASVS, OWASP Top 10
Secure SDLC / DevSecOps
Security Architecture Reviews
Secure Coding Practices
API Security
Cloud Security (AWS, Azure, Google Cloud Platform)
Name
Application Security
Sec Practices - OWASP Top 10
Microsoft Threat Modeling Tool
SDLC Concepts
Job Description/ Responsibilities
The Senior Application Security Architect will lead Secure-by-Design initiatives across enterprise applications by embedding security early in the software development lifecycle (SDLC). The role is responsible for conducting threat modeling, security architecture reviews, secure design assessments, and establishing security guardrails aligned with OWASP ASVS, NIST SSDF, and industry best practices. The architect will work closely with developers, enterprise architects, DevOps teams, and business stakeholders to ensure security risks are identified and mitigated before applications reach production.
________________________________________
Key Responsibilities
Secure-by-Design Leadership
Define and implement Secure-by-Design principles across application development programs.
Develop security reference architectures, reusable security patterns, and architecture standards.
Embed security requirements into solution design and development processes.
Threat Modeling & Risk Analysis
Conduct threat modeling workshops using STRIDE, Attack Trees, or similar methodologies.
Identify trust boundaries, attack surfaces, abuse cases, and potential design weaknesses.
Provide risk-based mitigation recommendations and architectural guidance.
Security Architecture Reviews
Perform application, API, microservices, cloud-native, and AI-enabled application security reviews.
Validate architecture compliance against OWASP ASVS, OWASP Top 10, NIST SSDF, and organizational standards.
Review data flows, authentication, authorization, encryption, secrets management, and logging controls.
Secure SDLC & DevSecOps
Integrate security requirements into Agile and CI/CD workflows.
Collaborate with development teams to implement security-by-default controls.
Support adoption of SAST, DAST, SCA, API Security, Container Security, and Secure Coding practices.
Developer Enablement
Provide secure coding guidance and architectural consultation.
Conduct architecture review sessions, threat modeling training, and security awareness workshops.
Act as a trusted advisor to engineering and product teams.
Governance & Stakeholder Management
Partner with Enterprise Architects, Product Teams, Security Leadership, and Development Managers.
Define security acceptance criteria and architecture review processes.
Present security findings, risks, and remediation strategies to senior leadership.
10+ years of cybersecurity, application security, or security architecture experience.
5+ years leading security architecture reviews and threat modeling engagements.
Experience working in regulated industries such as Financial Services, Banking, Insurance, or Healthcare.
Demonstrated expertise implementing Secure SDLC and DevSecOps programs at enterprise scale.
Preferred Certifications
o CISSP
o CSSLP
o CCSP
o SABSA
o AWS/Azure/Google Cloud Platform Security Certifications
o GIAC GWEB / GSEC
o Certified Secure Software Lifecycle Professional (CSSLP)

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