Software Engineer 2 (Full Stack, Helix-Aligned)

Introduction

WEX is a global leader in financial technology solutions, simplifying complex payment ecosystems across Fleet, Corporate Payments, and Benefits. We are transforming our platforms through Helix — a company-wide initiative to modernize technology, accelerate innovation, and deliver exceptional customer experiences.

We’re looking for a Full Stack Software Engineer (Level 2) to contribute to this transformation by designing and building reliable, scalable, and modern services. You’ll help evolve our legacy systems into API-first, modular, and event-driven architectures that enable faster delivery, smarter workflows, and the foundation for agentic, intelligent systems.

Scope of Role

As a Level 2 Engineer, you will:

• Build and maintain API and microservice-based solutions that align with Helix’s modernization and agentic architecture goals.

• Collaborate with senior engineers to decompose monolithic systems into reusable, composable components.

• Participate in the full software development lifecycle — design, coding, testing, deployment, and monitoring.

• Contribute to data pipelines, event streaming, and workflow automation that support agentic behavior.

• Learn and apply Helix principles — quality-first, API-first, reusable by design, and data-driven.

• Work cross-functionally with product, QA, and DevOps to ensure solutions are secure, performant, and maintainable.

What You’ll Do

• Develop and test secure, maintainable APIs and backend services that power intelligent workflows.

• Support event-driven integrations and real-time data processing (Kafka, CDC, JSON).

• Implement features that enable automation and intelligent decision flows within agentic systems.

• Participate actively in agile ceremonies, delivering incremental value with measurable outcomes.

• Contribute to CI/CD pipelines, observability, and automation frameworks.

• Write clear, reusable code and documentation to support discovery and reuse across teams.

• Collaborate with senior engineers to ensure technical solutions align with long-term Helix architecture.

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

• 2–3 years of professional software development experience.

• Experience building or consuming REST APIs.

• Hands-on experience with Python, Java, or Node.js.

• Familiarity with event streaming platforms (Kafka preferred).

• Understanding of databases (SQL/NoSQL) and data exchange formats (JSON, XML).

• Experience with Git and basic CI/CD workflows.

• Solid understanding of how systems interact through APIs and services.

• Strong problem-solving and communication skills.

Nice to Have

• Exposure to microservices or modernization projects.

• Experience in FinTech or payment systems.

• Familiarity with cloud environments (AWS preferred) and containerization (Docker, Kubernetes).

• Exposure to Siebel CRM or other enterprise applications.

• Some experience with front-end frameworks (React, Angular, or Vue).

• Interest in AI and automation — especially in how intelligent agents can optimize workflows.

What Makes You a Great Fit

• You’re eager to learn from senior engineers and contribute to building the future Helix architecture.

• You think about reusability, data flow, and automation when building solutions.

• You’re curious about agentic systems and how technology can enable intelligent automation.

• You take pride in writing quality code that moves systems closer to cloud-ready, modular design.

• You thrive in a collaborative, fast-paced environment where modernization is a shared mission