Staff Software Development Engineer

We are looking for a passionate Staff Software Development Engineer who enjoys solving complex problems, passionate about learning and experimenting, building innovative solutions, and collaborating with a talented engineering team. In this role, you will play a key part in designing, developing, and enhancing agentic solutions in a cloud-native environment using industry-leading AI tools/platforms, Java, AWS, Kafka event streaming, Elasticsearch, containerization, and API-driven architectures.

This is an opportunity to join an agile, collaborative team where engineers have ownership, make meaningful technical contributions, and deliver solutions that directly impact WEX’s customers and business growth.

How You’ll Make an Impact

• Design, develop, and deliver delightful product experiences that are powered by Agentic capabilities, scalable, reliable software solutions using modern technologies such as Java, Kafka, Elasticsearch, and cloud-native platforms.
• Contribute to architecture and design decisions that support highly available, secure, and scalable systems.
• Build and maintain clean, efficient, well-tested, and maintainable code.
• Develop and optimize RESTful APIs and backend services.
• Participate in code reviews, technical discussions, and collaborative problem-solving sessions.
• Troubleshoot, debug, and resolve complex technical challenges.
• Work across technology stacks and quickly adapt to new tools and frameworks.
• Stay current with emerging technologies and industry best practices to continuously improve engineering practices.
• Ensure operational excellence and best customer experience for all the products and systems owned by the team.

Experience You’ll Bring

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• 7+ years of software engineering experience designing, developing, and supporting enterprise-scale applications.
• Strong experience building cloud-based applications and infrastructure using infrastructure-as-code practices.
• Proficiency with event streaming platforms such as Kafka.
• Experience with Elasticsearch, including indexing strategies, query optimization, and data analysis.
• Experience working with cloud platforms such as AWS.
• Strong understanding of software engineering principles, including data structures, algorithms, object-oriented design, scalability, availability, and reliability.
• Strong problem-solving skills with the ability to analyze complex technical challenges.
• Excellent written and verbal communication skills with a collaborative mindset.

Preferred Qualifications

• Master’s degree in Computer Science, Software Engineering, or a related field.
• 8+ years of software engineering experience.
• Experience and knowledge in building Agentic/AI solutions for real world problems.
• Experience designing and implementing event-driven architectures.
• Experience working with card payments or financial services platforms.
• Hands-on experience with cloud-native technologies including Docker and Kubernetes.
• Knowledge of API security principles and PCI DSS compliance requirements.
• Experience working within existing codebases and improving legacy systems.
• Strong backend development expertise with Java or C#, including frameworks such as Spring Boot.
• Experience designing, building, and optimizing RESTful APIs, OData services, and SQL-based solutions.
• Proven experience developing internet-scale services with a focus on scalability, security, availability, and reliability.

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section.

Pay Range: $140,600.00 - $173,100.00

About Us

WEX is a global commerce platform that helps businesses solve for operational complexities like employee benefits, managing and mobilizing fleets, and streamlining payments.

With over 6,500 employees, we work with large and small companies in more than 200 countries and territories, and can tailor our services to meet the unique needs of their businesses.

We hire people who share our passion for continuous innovation and client service that is unparalleled in the industry. Offering comprehensive and market competitive benefits, our offerings are designed to support your personal and professional well-being. If you’re looking for a growing career - come be part of WEX today. To learn more about our employee benefits, please click here.

WEX is an equal opportunity employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex, race, color, age, national origin, religion, sexual orientation, gender identity, protected veteran status, disability or other protected status. WEX promotes a drug-free workplace.

Qualified individuals with a disability have the right to request a reasonable accommodation. If you require a reasonable accommodation as a result of your disability at any point in the job application process, please submit your request through our Reasonable Accommodation Request Form.

This form is for accommodation requests only and cannot be used to inquire about the status of applications.