Software Engineer Contractor Jobs in Missouri (NOW HIRING)

Job#: 3051324
Job Description:
Cloud Application Software Security Engineer, Contractor
Location: St. Louis, Missouri (Partial Remote)
Role Overview
We are seeking an application/software engineer with a strong security focus to evaluate, prioritize, and remediate vulnerabilities and compliance findings across custom applications and infrastructure as code (IaC). This position will support the remediation of findings related to custom code and IaC, as well as maturing pipelines to address known SDLC findings. The role sits at the intersection of secure application development, cloud security engineering, and risk/compliance, driving both code-level fixes and cloud configuration hardening to maintain a strong security posture.
Key Responsibilities

• Conduct security assessments using scanning tools and implement recommended remediations.
• Evaluate and remediate Known Exploited Vulnerabilities (KEVs) and Common Vulnerabilities and Exposures (CVEs) in custom applications and infrastructure.
• Support Security Assessment and Authorization (SA&A) processes, including documentation and evidence collection.
• Analyze Software Bill of Materials (SBOM) findings to identify vulnerable dependencies and recommend updates or alternatives.
• Review and remediate security vulnerabilities in custom VB.NET, SQL, and Python code.
• Perform security analysis and hardening of AWS Cloud Development Kit (CDK) infrastructure as code.
• Collaborate with development teams to implement secure coding practices and address identified vulnerabilities.
• Maintain security documentation and track remediation efforts through completion.
• Ensure compliance with federal security standards and frameworks within the AWS GovCloud environment.
• Participate in security scanning automation and continuous monitoring initiatives.

Required Qualifications
Education: Bachelor's degree in Computer Science, Software Engineering, Cybersecurity, or a related field; or equivalent work experience.
Experience: A minimum of 3-5 years of experience in application security or software development with a security focus. Proven experience with vulnerability assessment and remediation methodologies is required.
Technical Skills:

• Working proficiency with Python, SQL, and VB.NET or legacy .NET frameworks.
• Experience with AWS Cloud Development Kit (CDK) or similar IaC tools (Terraform, CloudFormation).
• Hands-on experience working in AWS environments, preferably AWS GovCloud.
• Experience with AWS security services (GuardDuty, Security Hub, Inspector, Config).
• Understanding of CVE/KEV identification and remediation processes.
• Knowledge of SBOM generation and analysis.
• Experience with static application security testing (SAST), dynamic application security testing (DAST), and penetration testing.

Other Requirements: U.S. Citizenship is required for this position.
Preferred Qualifications

• Professional security certifications (CISSP, CEH, GIAC GSEC, AWS Security Specialty, or equivalent).
• Knowledge of container security (Docker, ECS, EKS).
• Experience with CI/CD pipeline security integration (Jenkins, GitLab CI, AWS CodePipeline).
• Familiarity with DevSecOps practices and tooling.
• Knowledge of secure software development lifecycle (SSDLC) practices.
• Understanding of zero trust architecture principles.
• Background in both application development and security operations.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
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