Senior Software Developer Jobs in Missouri (NOW HIRING)

Position Summary...We are seeking a Senior Software Engineer to design, build, and scale secure enterprise authentication solutions. This role is part of the Multi-Factor Authentication (MFA) team within the Identity and Access Management (IAM) organization and focuses on Phishing-Resistant MFA (PR-MFA) and certificate-based authentication (CBA). You will develop highly scalable services and automation that support registration, lifecycle management, enforcement, and rollout across the enterprise, partnering closely with security, platform, and associate experience teams.What you'll do...

• Design, build, and maintain scalable services supporting MFA, PR-MFA, and CBA
• Implement secure registration, recovery, lifecycle, and enforcement workflows
• Contribute to enterprise-scale rollout strategies for phishing-resistant MFA and certificate-based authentication
• Integrate MFA capabilities into identity providers, SSO platforms, VPN solutions, and endpoint systems
• Apply FIDO2/passkey and CBA (PKI, certificates) concepts in production systems
• Build automation to support hardware authenticator enrollment, recovery, and lifecycle operations
• Develop dashboards and metrics to monitor adoption, rollout health, reliability, and security posture
• Participate in architectural design discussions and contribute to long-term technical strategy
• Mentor junior engineers and promote engineering best practices through code reviews, documentation, and knowledge-sharing sessions

As the Senior Software Engineer, Cybersecurity (IAM – MFA), you will have:

• Strong software engineering experience building scalable, resilient enterprise-grade services and APIs
• Demonstrated experience delivering distributed systems at scale in production environments
• Experience designing APIs, automation workflows, and backend services with observability and reliability in mind
• Ability to mentor junior engineers and actively share knowledge through design reviews, documentation, and technical sessions
• Strong collaboration skills and a growth mindset toward modern authentication technologies

Preferred Qualifications:

• Experience building highly available, fault-tolerant distributed systems
• Experience with cloud-native architectures and CI/CD automation
• Experience working in large enterprise environments with complex identity ecosystems
• Exposure to compliance and security frameworks impacting authentication systems

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.
The annual salary range for this position is $90,000.00 - $180,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
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Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Bachelor’s degree in Computer Science, Information Technology, or related field and 5 years' experience in information technology within the past
10 years OR 7 years' experience in information technology or related field within the past 10 years.Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Certified Intrusion analyst (GCIAs), GIAC Certified Enterprise Defender (GCED), Certified Geographic Information Systems Professional (GISP), GIAC Certified Incident Handler (GCIH), Certified Information Systems Security Professional (CISSP), Certified Information Systems Auditor (CISA), GIAC Security Essentials Certification (GSEC), and/or Security+ certification, Leading Technical Team, Mainframe Technology, Professional certification in information technology relevant to the job under consideration (for example, Java, C/C++, mainframe technologies, SAP, Microsoft .Net, business intelligence tools, SQL technology), Programming language or languages (for example, Java, C/C++, .NET, Rexx, Cobol, Powershell), SAP, SQL technology, Version control software (for example, Subversion, Git, Librarian), We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.Primary Location...805 Se Moberly Ln, Bentonville, AR 72712, United States of AmericaWalmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.