Fulltime Freelance Software Developer Jobs in Missouri

Position Summary... What you'll do...Role summary:
As a Principal Software Engineer, you'll define the technical direction for one of the core capabilities within WatchTower, the engineering operating system for Marketplace. You'll solve complex engineering problems, influence architecture across multiple teams, and build platforms that improve how thousands of engineers develop, deploy, operate, and support software. This role combines deep technical expertise with strategic influence to shape the future of engineering across Marketplace.
About the team:
The Marketplace Platform Reliability team develops and maintains engineering systems that enable thousands of engineers to deliver reliable, scalable, and high-performing software. This team manages platforms, operational intelligence, AI capabilities, and engineering standards to enhance productivity and system reliability. Focused on innovation and continuous improvement, the team drives technical excellence through collaboration, strategic alignment, and effective program management. Members design robust, scalable solutions supporting business growth while optimizing operational efficiency and maintaining high-quality standards across the Marketplace organization.
  What you'll do:

• Define the technical vision and architecture for a core WatchTower platform capability.
• Design and build highly scalable distributed systems that improve reliability, developer productivity, and operational intelligence.
• Partner with engineering leaders to drive architecture, engineering standards, and technical strategy across Marketplace.
• Mentor engineers and provide technical leadership across multiple teams without direct organizational authority.
• Drive innovation through AI, automation, cloud-native technologies, and modern software engineering practices.

  What you'll bring:

• Deep expertise designing and building large-scale distributed systems or platform software.
• Strong background in cloud-native architecture, microservices, Kubernetes, and modern software engineering practices.
• Experience leading architecture across multiple teams and influencing technical direction through engineering leadership.
• Proven ability to solve complex technical problems and deliver scalable platform capabilities.
• Experience with developer platforms, operational tooling, AI, observability, or infrastructure engineering.
• Excellent communication skills with the ability to influence engineers and leaders across large organizations.

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 $110,000.00 - $220,000.00 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.

Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.
Option 2: 7 years’ experience in software engineering or related area. Preferred Qualifications...

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

Master’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years' experience in software engineering or related area., 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... 2608 Se J St, Bentonville, AR 72716-3724, United States of America Walmart 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.