Mid Python Developer

WEX Inc. is a global commerce platform that simplifies the business of running a business by offering personalized technology solutions for employee benefits, mobility and fleet management, and corporate payments.

wex

Employee count: 5000+

Brazil only

About the Team/Role

We are seeking a Full Stack Software Engineer (SDE2) to join our WEX Mobility Engineering team. In this role, you will help design and build modern APIs, backend services, and data pipelines to support mission-critical capabilities such as credit issuance, spend controls, and fleet management. As a member of an agile and collaborative team, you’ll contribute to building secure, scalable systems using Python, Kafka, and cloud-native services. You’ll help modernize legacy components and integrate data across systems using event-driven architecture, JSON APIs, and CDC patterns. This role is ideal for a motivated engineer looking to grow their full-stack skills and contribute to large-scale, impactful

projects.

How you’ll make an impact

Develop and maintain backend services and APIs with a focus on reliability and scalability.
● Build and support data pipelines using event-streaming platforms like Kafka.
● Write clean, maintainable code in Python and/or Java.
● Collaborate with engineers, product managers, and QA to understand requirements and deliver value incrementally.
● Work on integrations using JSON, RESTful APIs, and messaging systems.
● Participate in code reviews and contribute to a culture of continuous improvement.
● Support production systems and assist in resolving technical issues when needed.

Experience you’ll bring

BS in Computer Science, Engineering, or equivalent experience (or can demonstrate strong practical ability in lieu of

a degree)

Good hands-on experience developing applications or microservices using Python and/or Kafka
● Good experience building and consuming REST APIs
● Strong written and verbal communication skills, with the ability to collaborate across teams
Experience building and consuming REST APIs.
● Proficiency in Python, Java, or another modern backend language.
● Familiarity with Kafka, message queues, or event-driven design.
● Knowledge of relational databases (e.g., PostgreSQL, Oracle) and basic SQL skills.
● Understanding of JSON and data exchange formats.
● Experience working in Unix/Linux environments.
● Exposure to CI/CD tools and source control (Git or similar).
● Comfort working in an agile development environment.

Plus

Experience with Change Data Capture (CDC) concepts and tools.

● Exposure to cloud platforms like AWS.

Familiarity with containerization tools like Docker.
● Experience with Siebel CRM or interest in learning enterprise CRM systems.
● Understanding of front-end technologies or frameworks (e.g., React, Angular).
● Familiarity with enterprise tools like JIRA and Confluence.

If you are looking for a growing career – come be part of WEX today!

Apply now

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About the job

Apply before

Oct 08, 2025

Posted on

Aug 09, 2025

Job type

Full Time

Experience level

Mid-level

Location requirements

Brazil

Hiring timezones

Brazil +/- 0 hours

About wex

Learn more about wex and their company culture.

View company profile

WEX Inc. is a global commerce platform that simplifies the business of running a business. Many of our customers face the challenge of managing complex operational processes due to the rapid pace of regulatory, economic, and societal change worldwide. They are often stretched thin and lack the in-house expertise to solve these intricate problems. This is why WEX offers personalized technology solutions designed to simplify employee benefits, mobility and fleet management, and accounts payable and receivables processes. From our origins as a pioneer in fleet card payments in 1983, we have expanded our scope to become a multi-channel provider of corporate payment solutions, helping businesses navigate these complexities and achieve greater efficiency.

Our customers in the fleet industry, for example, need robust tools to manage fuel and maintenance expenses, ensure driver safety, and optimize operations. WEX Fleet provides them with fuel cards, telematics, and data analytics to meet these needs. For businesses involved in travel, managing cross-border payments and streamlining back-end accounting can be a significant hurdle. WEX's travel and corporate solutions, including virtual payment solutions, help these clients automate processes, reduce costs, and gain better insights into their spending. Similarly, in the healthcare sector, employers and employees alike grapple with the administration of benefits and healthcare payments. WEX Health offers a cloud-based platform to simplify the management of Health Savings Accounts (HSAs), Flexible Spending Accounts (FSAs), and other benefit plans, making it easier for millions of consumers to manage their healthcare expenses. By embedding our solutions into our customers' workflows and leveraging our expertise in data and analytics, we empower them to make smarter decisions, reduce operating costs, and ultimately, reach their full potential.