Staff Software Engineer

WEX

Staff Software Engineer designing and developing APIs for WEX’s fuel card platform. Key contributor implementing scalable solutions with modern technologies such as Kafka and ElasticSearch.

Posted 6/4/2026full-timeCalifornia, Maine, Massachusetts, Texas, Utah, Washington • 🇺🇸 United StatesLead💰 $140,600 - $173,100 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudElasticSearchKafkaNoSQLSQLTerraform

About the role

Key responsibilities & impact

Design, develop, and implement scalable and reliable software solutions using Kafka, ElasticSearch, and other modern technologies
Contribute to the long-term architecture and design of our cloud-native infrastructure
Write clean, maintainable, and well-documented code
Participate in code reviews and collaborate with other team members to ensure high code quality
Troubleshoot and resolve issues in a timely and efficient manner
Demonstrate strong ownership and ability to collaborate with stakeholders and exercise technical influence across partner teams

Requirements

What you’ll need

Bachelor's degree in Computer Science, Engineering, or a related field
7-12 years of software development experience with deep understanding of API design fundamentals
Strong understanding of data structures and algorithms, object-oriented design, and problem-solving skills
Expertise in designing and developing large-scale services
Strongly proficient with event streaming platforms (e.g., Kafka)
Expertise in Elasticsearch, including query optimization, indexing, and data analysis
Demonstrated experience with cloud platforms such as AWS, use of Terraform, SQL/NoSQL databases and DevOps best practices
Deep understanding of building robust authentication and authorization mechanisms
Excellent written and verbal communication skills, and a collaborative mindset

Benefits

Comp & perks

health, dental and vision insurances
retirement savings plan
paid time off
health savings account
flexible spending accounts
life insurance
disability insurance
tuition reimbursement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

software developmentAPI designdata structuresalgorithmsobject-oriented designevent streamingElasticsearchcloud platformsTerraformSQL/NoSQL databases

Soft Skills

problem-solvingcollaborationcommunicationownershiptechnical influence

Certifications

Bachelor's degree in Computer ScienceBachelor's degree in Engineering