Contract Fintech Software Engineer Jobs in Missouri

Position Summary... What you'll do...Role summary:
The Principal Software Engineer leads platform engineering efforts by delivering scalable, cloud-native solutions and reusable infrastructure components. This role drives the full software development lifecycle, integrating AI/ML technologies to build intelligent systems that serve millions. The position requires strategic technical leadership, mentorship, and collaboration across teams to ensure alignment with long-term architectural goals. The engineer applies sound judgment to design and implement distributed systems with high availability and fault tolerance, continuously improving processes and fostering innovation to meet evolving business and customer needs.
About the team:
The Fintech Disputes & Exceptions Management Engineering group delivers precise resolution of payment discrepancies within Walmart’s Finance Tech ecosystem. The team develops and maintains tools that enhance collaboration between internal teams and external suppliers, leveraging automation to minimize manual efforts. Focused on continuous improvement and operational excellence, the group supports Walmart’s goals by ensuring accurate and timely dispute management. This team values strong technical skills in software development, problem solving, and iterative delivery to build reliable solutions that improve financial processes and contribute to business success.
What you'll do:

• Lead platform engineering efforts by delivering scalable infrastructure, reusable tooling, and AI/ML frameworks aligned with strategic roadmaps.
• Architect and implement cloud-native, distributed systems ensuring high availability, fault tolerance, and real-time data processing.
• Drive full software development lifecycle across multiple teams, including coding, testing, deployment, and maintenance.
• Provide technical leadership and mentorship to engineering teams, promoting best practices and architectural consistency.
• Collaborate with stakeholders to translate business needs into actionable technical requirements and measurable outcomes.
• Foster continuous improvement through innovation, knowledge sharing, and adoption of advanced development tools.

What you'll bring:

• Extensive experience in platform engineering leadership, delivering scalable and reusable infrastructure components.
• Proven expertise in cloud-native architecture and distributed system design ensuring high availability and fault tolerance.
• Strong proficiency in AI/ML integration, including building intelligent software systems and AI agents.
• Demonstrated ability to lead full software development lifecycle, including CI/CD, testing, and incident response.
• Skilled in technical solution design, model-driven design, and applying engineering design processes.
• Proficient in programming languages such as Java and JavaScript frameworks like React Redux.
• Effective mentor and technical leader, fostering engineering excellence and innovation across teams.
• Strong collaboration and communication skills with cross-functional stakeholders to define and deliver business-driven solutions.

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.