WEX is looking for an experienced Software Development Engineer 4 to join our dynamic engineering team in Minnesota. This senior-level position involves leading the design and development of high-performance software solutions that power our industry-leading payment processing and fleet management systems. The role offers an opportunity to work on cutting-edge technology while collaborating with cross-functional teams to deliver scalable applications that serve millions of customers worldwide. Key responsibilities include architecting robust software solutions using modern development practices, mentoring junior engineers on coding standards and best practices, participating in code reviews to ensure quality and maintainability, and collaborating with product managers and stakeholders to translate business requirements into technical specifications. The engineer will also troubleshoot complex production issues, optimize application performance, and contribute to continuous improvement initiatives within the development lifecycle. Required qualifications include a bachelor's degree in computer science or related field with seven or more years of professional software development experience. Candidates must demonstrate expertise in object-oriented programming languages such as Java, C#, or Python, along with strong knowledge of distributed systems and cloud platforms. Experience with agile methodologies, database design, and RESTful API development is essential for success in this role. Essential skills include proficiency in software architecture patterns, version control systems like Git, containerization technologies such as Docker and Kubernetes, and familiarity with CI/CD pipelines. Strong problem-solving abilities, excellent communication skills, and the capacity to work effectively in fast-paced environments are critical. Knowledge of payment processing systems or financial technology is highly advantageous. WEX is a leading provider of corporate payment solutions and fleet management services, committed to innovation and customer satisfaction. We foster a collaborative work culture that encourages professional growth and technological advancement. Team members enjoy comprehensive health benefits, retirement savings plans, flexible work arrangements, and ongoing learning opportunities through training programs and conference attendance. The company supports career advancement through internal mobility programs and leadership development initiatives designed to help employees reach their full potential. Growth opportunities at WEX include technical leadership tracks, management development programs, and exposure to emerging technologies in fintech and payments. Engineers have the chance to influence product direction, contribute to open-source projects, and participate in innovation labs that explore next-generation solutions for the transportation and payments industries.