WEX

Software Development Engineer 3- AI & Agentic Systems

WEX
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6 days ago
Remote, United States +2 moreSenior
H1B sponsor

Base Salary

$122k - $146k/yr

Responsibilities

  • Design and deploy multi-agent workflows with AWS Agent Core, including state management, memory persistence, and tool interactions.
  • Build and own complete services and cross-platform integrations from design through lifecycle operations.
  • Make strategic data-orchestration decisions involving MCP/API and Agents/Skills approaches.
  • Design resilient, testable, and maintainable systems with retries, circuit breakers, and fallbacks.
  • Review code for security flaws and ensure services follow authentication standards such as OAuth scopes.
  • Design cost-aware cloud infrastructure with auto-scaling and failover strategies.
  • Own deployment packages, metadata frameworks, environment management, and CI/CD optimization.
  • Resolve complex bugs, lead incident response, and create triage runbooks and playbooks.
  • Own non-functional requirements for performance, security, and scalability in partnership with Product Managers.
  • Negotiate backlog scope, technical debt, and refactoring priorities with product partners.
  • Mentor junior SDEs, enforce code quality, facilitate technical consensus, and lead knowledge sharing.
  • Support internal AI adoption through education, coaching, and collaboration with external AI partners.

Requirements

  • Senior-level software engineering capability to design complete services, solve complex integration problems, and lead major initiatives end to end.
  • Experience building AI-powered software and agentic workflows using tools such as Google Gemini, AWS Agent Core, Claude, or comparable integrations.
  • Ability to make architecture and data-orchestration trade-offs across APIs, agents, skills, and platform integrations.
  • Experience designing reliable cloud infrastructure, deployment automation, CI/CD pipelines, and environment-management processes.
  • Ability to diagnose intermittent issues, race conditions, memory leaks, and other complex software defects.
  • Strong understanding of secure service design, authentication standards, non-functional requirements, and audit considerations.
  • Ability to own incidents, develop operational playbooks, and improve support-team self-service.
  • Strong product partnership, technical communication, mentoring, code review, consensus-building, and prioritization skills.
  • Ability to rapidly learn and apply new programming languages and frameworks.

Benefits

  • Health, dental, and vision insurance.
  • Retirement savings plan.
  • Paid time off.
  • Health savings account and flexible spending accounts.
  • Life insurance and disability insurance.
  • Tuition reimbursement and additional benefits.
  • Base pay range of $121,500.00 to $145,500.00, with eligibility for applicable bonuses.
WEX

About WEX

5,001-10,000 employees

WEX is a public financial technology company that provides corporate payment solutions to fleets, healthcare/benefits administrators, and travel businesses. Its products include fuel and mobility cards, virtual card payments, and platforms for HSAs/FSAs/HRAs, with revenue from payment processing and software/service fees. Founded in 1983 and headquartered in Portland, Maine, WEX trades on the NYSE under WEX and was formerly known as Wright Express.

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