Mid level Site Reliability Engineer

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

The WEX Site Reliability Engineering (SRE) team seeks individuals passionate about developing software and solutions for observability, incident response, reliability, performance, operational excellence, and compliance. As part of the Site Reliability Engineering organization, you will support internal stakeholders and Payment Platform teams, tackling complex challenges and enhancing our engineering teams' and customers' experience. The ideal candidate will have a strong aptitude for learning new technologies, driving meaningful projects to completion, and thriving under pressure while closely collaborating with engineering teams.

As an SRE at WEX, you will be exposed to numerous code bases and languages. You will need to be able to assess for bugs during on-call events, find performance issues, and write custom tools to help automate operational tasks.

How you’ll make an impact

Willingness to dig deep into code, networking, operating systems, and/or storage solutions to solve complex issues
Develop automation and utilize monitoring tools to ensure system reliability
Participate in incident response and troubleshooting
Participate in 24x7 Site Reliability rotations and escalation workflows
Identify and address performance bottlenecks. This will include code optimization, configuration changes, or infrastructure upgrade recommendations.
Collaborate with development teams to ensure software design meets operational requirements.
Continuously improve processes and procedures to increase system reliability and efficiency.
Stay up-to-date with the latest industry trends and technologies
Design, code, and debug applications while assisting with CI/CD pipelines, automating infrastructure tasks, and ensuring system scalability and security.

Experience you’ll bring

Hands-on experience as a Site Reliability Engineer or equivalent role
Development experience OR consistent knowledge of at least one major programming language C#, Java, GoLang, Python
Experience with Cloud Computing platforms (AWS, Azure, GCP)
Ability to thrive in a fast-paced development and operations world
Strong communication and collaboration skills
Experience with Grafana and Splunk
Experience with at least one major RDBMS and NoSQL data store
Experience with containerization technologies such as Docker or Kubernetes
BA/BS degree in Computer Science or related technical field or equivalent job experience

Nice to have

Experience with infrastructure as code, preferably Terraform
Working knowledge in building and designing RESTful APIs.
Familiarity with Agile methodologies and practices
Experience with GitOps
Experience with Apache Kafka and eventing technologies.

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About the job

Apply before

Nov 11, 2025

Posted on

Sep 12, 2025

Job type

Full Time

Experience level

Mid-level

Location requirements

Brazil

Hiring timezones

Brazil +/- 0 hours

About wex

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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.

Tech stack

Learn about the tools and technologies that wex uses to build, market, and sell its products.

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Spring Boot

Symfony

Bootstrap

Python

Java

Scala

TypeScript

SQL

Postman

Alation

Kubernetes

10 more

wex employees can create an account to update this tech stack.

Employee benefits

Learn about the employee benefits and perks provided at wex.

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Company equity

WEX offers company equity.

Life insurance

WEX offers life insurance.

Paid sick days

WEX provides paid sick days.

Sabbatical

WEX offers sabbatical leave.

View wex's employee benefits

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