Senior Software Development Engineer

WEX

Senior Software Development Engineer leading design and development of major systems at WEX. Collaborating with stakeholders and mentoring senior engineers in integrated engineering practices.

Posted 6/23/2026full-timePortland • California, Maine, Massachusetts, Washington • 🇺🇸 United StatesSenior💰 $140,600 - $173,100 per yearWebsite

Tech Stack

Tools & technologies

JenkinsMicroservicesSDLC

About the role

Key responsibilities & impact

Collaborate with stakeholders throughout the SDLC to translate complex business requirements into high-quality, reliable, cost-effective, and maintainable solutions
Lead the design and development of major systems or constellations of smaller systems with a focus on Continuous Delivery principles and practices
Champion integrated engineering practices within the organization
Architect and implement advanced AI workflows, including multi-agent orchestration, state management, and memory persistence
Solve architectural bottlenecks that cross team boundaries and review designs from other teams for consistency, scalability, and long-term supportability
Coordinate large-scale programs across many dependent teams, independently creating project plans and managing materializing risks with a high degree of confidence in delivery
Research and implement new ways to keep teams efficient, staying ahead of industry trends and Agile practices
Act as a talent multiplier by mentoring senior engineers, leading by example in code reviews, and fostering a culture of technical excellence

Requirements

What you’ll need

Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
Minimum of 8-10 years of experience in software engineering and delivery
Expert proficiency in multiple programming languages and modern architectural patterns (Microservices, Event-Driven, etc.)
Hands-on experience building with LLMs and designing multi-agent agentic workflows (handling state, memory, and tool calls)
Strong understanding of continuous delivery principles and mastery of automation tools (e.g., Jenkins, GitLab CI/CD, etc.)
Exceptional problem-solving and analytical skills, with the ability to navigate high degrees of ambiguity
Excellent communication and negotiation skills, with the ability to tailor messaging for a wide variety of audiences, including senior leadership
Ability to work independently and as a strategic lead within a cross-functional technical team

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
commission under the terms of an applicable plan
quarterly or annual bonus based on their role and applicable plan

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

software engineeringprogramming languagesmicroservicesevent-driven architectureAI workflowsmulti-agent orchestrationstate managementmemory persistencecontinuous deliveryautomation tools

Soft Skills

problem-solvinganalytical skillscommunication skillsnegotiation skillsmentoringleadershipcollaborationstrategic thinkingadaptabilitytechnical excellence

Certifications

Bachelor's degree in Computer ScienceBachelor's degree in Software Engineeringrelated field degree