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WEX

Staff Software Development Engineer

WEX

. Design, develop, and deliver product experiences powered by Agentic capabilities .

Posted 9/29/2026full-timeRemote • United StatesLead💰 $140,600 - $173,100 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and developing scalable, cloud-based applications using Java, Kafka, and Elasticsearch, while ensuring operational excellence and compliance with industry standards. Strong problem-solving abilities and collaborative communication skills are essential for delivering impactful solutions.

Highest-signal resume keywords
Java DevelopmentKafka Event StreamingElasticsearch OptimizationCloud Platforms (AWS)RESTful API Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Software Engineering PrinciplesEvent-Driven ArchitectureInfrastructure-as-CodeBackend Development (Java or C#)SQL-Based SolutionsAPI Security PrinciplesDockerKubernetesData StructuresAlgorithms
Soft Skills
Problem-SolvingCollaborationCommunication
Tools & Technologies
Cloud-Native PlatformsAgile MethodologiesOData Services
Certifications & Qualifications
Bachelor’s Degree in Computer ScienceMaster’s Degree in Computer Science (Preferred)
Industry Keywords
Agentic SolutionsFinancial Services PlatformsPCI DSS Compliance

Tech Stack

Tools & technologies
AWSCloudDockerElasticSearchJavaKafkaKubernetesSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact
  • Design, develop, and deliver product experiences powered by Agentic capabilities
  • Build scalable and reliable software solutions using Java, Kafka, Elasticsearch, and cloud-native platforms
  • Contribute to architecture and design decisions for 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 adapt to new tools and frameworks
  • Stay current with emerging technologies and industry best practices
  • Ensure operational excellence and the best customer experience for products and systems owned by the team
  • Collaborate with an agile engineering team and deliver solutions impacting WEX customers and business growth

Requirements

What you’ll need
  • 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: Master’s degree in Computer Science, Software Engineering, or a related field
  • Preferred: 8+ years of software engineering experience
  • Experience building Agentic/AI solutions
  • Experience designing and implementing event-driven architectures
  • Experience working with card payments or financial services platforms
  • Hands-on experience with 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

Benefits

Comp & perks
  • Health insurance
  • Dental insurance
  • Vision insurance
  • Retirement savings plan
  • Paid time off
  • Health savings account
  • Flexible spending accounts
  • Life insurance
  • Disability insurance
  • Tuition reimbursement
  • Quarterly or annual bonus eligibility for non-sales roles
  • Commission eligibility for most sales positions