WEX jobs

WEX Inc., a global payment processing and fleet solutions provider, is hiring a Senior Backend Software Development Engineer to join their Platform Modernization group based in Brazil (São Paulo, Salvador, or Porto Alegre, remote). You'll design and deliver large-scale, scalable systems while mentoring junior engineers, driving architectural decisions through technical influence, and owning features end-to-end from design through deployment. The role requires advanced English, a degree in a related field, proven senior-level software engineering experience, and expertise in Java, Python, C#, or C++ alongside strong knowledge of distributed systems, microservices, RESTful APIs, and test-driven development practices. AWS, Docker, Kubernetes, and CI/CD pipeline experience are desired. This is a full-time, individual contributor role emphasizing technical leadership, code quality, and collaboration across distributed US-Brazil teams—notably posted 30+ days ago, so timeline/availability should be confirmed.

This Software Development Engineer 3 role at WEX sits within their cloud-native platform team, focusing on building "Observability-as-Code" infrastructure that embeds monitoring and alerting directly into the development lifecycle. You'll architect and maintain observability platforms (Grafana Cloud, Splunk Cloud) using infrastructure-as-code tools like Terraform, integrate incident management via xMatters, and manage cyber asset inventory with Axonius while creating technical documentation and mentoring engineers. The role requires 5+ years of hands-on experience with Grafana Cloud and Splunk Cloud (managing them programmatically, not just via UI), strong software development skills (Python, Java, Go, or similar), and cloud infrastructure experience, with preferred background in incident management tools, DevOps/CI-CD practices, and cybersecurity asset management. WEX offers competitive benefits including health/dental/vision coverage, 401(k), PTO, and tuition reimbursement, with base pay of $121,500–$145,500 depending on qualifications. The role is fully remote across four US locations (Portland ME, Chicago IL, Boston MA, Dallas TX) and has been posted for 30+ days, suggesting it may be a hard-to-fill position requiring specialized observability expertise.

Senior Software Engineer role on a payments/fintech platform team, fully remote across three Brazilian cities (São Paulo, Porto Alegre, Salvador). You'll own full-stack development across microservices, front-end, infrastructure, and data systems while mentoring junior engineers and balancing rapid iteration with regulatory compliance requirements. Required experience includes significant professional development with Golang, Java, or C#; cloud deployment (AWS); modern web frameworks; SQL/NoSQL databases; infrastructure as code and containerization; and proven ability to write comprehensive tests. The company operates in the heavily regulated payments space, which shapes how you'll approach both speed and architectural decisions. The role emphasizes collaborative ownership, technical mentorship, and comfort switching between tech stacks—this is a full-stack generalist position, not specialist-focused.