.Net Technical Leader and Senior Developer

About the Team

Finance Tech is a strategic enabler within Walmart’s technology ecosystem, focused on delivering scalable, secure, and innovative solutions that support financial operations across the region. Our team partners work closely with business stakeholders to drive automation, improve decision-making, and ensure compliance, while continuously evolving our platforms to meet the dynamic needs of the business.

About the Role

As an Application Developer and Technical Lead, you will provide technical leadership while designing, developing, testing, and deploying robust solutions using .NET platform and a diverse technology stack.

What You'll Do

• Design, develop, test, and deploy .NET-based applications in a fast-paced environment.
• Help other developers and team members to ensure high-quality applications are developed
• Work closely with architects and business analysts to translate functional requirements into technical solutions.
• Write clean, maintainable, and efficient code following best practices.
• Troubleshoot and resolve application issues, ensuring high performance and reliability.
• Participate in code reviews and contribute to team knowledge sharing.

What You'll Bring

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 5+ years of experience in .NET (C#) application development, preferably .NET 6 or newer.
• Experience with Python focused on data management.
• 3+ years of experience as a Software Development Tech Lead
• Strong experience with SQL: schema design, complex queries, and performance optimization.
• Experience with message brokers (Kafka, MQSeries/IBM MQ, ActiveMQ), REST APIs, and relational databases (SQL Server, PostgreSQL).
• Experience with CI/CD pipelines, version control (Git), and Agile methodologies.
• Strong analytical and problem-solving skills.
• Experience with cloud-native architectures (Azure, GCP, or AWS).
• Strong understanding of security, performance, observability, and scalability best practices.
• Excellent communication skills and experience working with cross-functional teams.
• Understanding of software design patterns, TDD, BDD, and SOLID principles.
• English B2/B1+.

Nice to Have

• Development and integration of ETL/ELT processes using tools such as SSIS, Apache Airflow, or similar.
• Experience leveraging AI-assisted development tools (GitHub Copilot, ChatGPT, Cursor, Claude, etc.) as part of the software development lifecycle.
• Hands-on experience building AI-powered applications, Agentic AI solutions, copilots, chatbots, or intelligent workflow automation systems.
• Understanding prompt engineering, AI orchestration patterns, and AI-driven process automation.

At Walmart de México y Centroamérica, we are committed to fostering a culture of belonging. Therefore, we seek to attract and hire the best talent based on competencies, skills, and potential. We do not discriminate on any grounds, including gender, age, ethnic origin, physical appearance, marital status, HIV-related health conditions or any other illness, socioeconomic status, disability, sexual orientation, gender identity, or gender expression. As a result, throughout the attraction and selection process, we will not request personal information, photographs, or any type of medical examinations. A candidate’s personal information is not relevant during the interview process or for the final hiring decision. At Walmart de México y Centroamérica, we are committed to ensuring that our associates experience a workplace every day that is respectful and free from discrimination and sexual harassment.