Software Development Engineer 3- AI & Agentic Systems

Summary by AIEngineer.careers

Software Development Engineer 3- AI & Agentic Systems is a AI Agent Engineer role (full-time). with WEX, Inc. in BOSTON, US. Compensation shown: $122K–$146K. Imported listing (source: justjobs.com). Apply on the employer's site (justjobs.com).

Imported listing (source: justjobs.com) · Apply on justjobs.com

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BOSTON · US

$122K–$146K

Full-time

SENIOR

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The sections below reproduce the third-party job description for reference. AIEngineer.careers does not write or control this text.

Imported job description

Sourced from justjobs.com

WEX is hiring a senior Software Development Engineer to build AI-powered and agentic systems. You will design multi-agent workflows on AWS Agent Core, own end-to-end service architecture, and drive internal AI adoption with tools like Google Gemini and Claude. The role combines hands-on agentic engineering, cloud reliability, and technical mentorship.

Responsibilities

Design and deploy multi-agent workflows within AWS Agent Core, including state management, memory persistence, and tool interactions
Own the lifecycle of services and cross-platform integrations end to end
Build resilient systems with retries, circuit breakers, and fallbacks
Design cost-aware cloud infrastructure and optimize CI/CD pipelines
Lead incident response and create triage runbooks and playbooks
Partner with product managers on non-functional requirements and backlog prioritization
Mentor SDE 1s and 2s and enforce quality standards in code reviews

Requirements

Senior-level software engineering experience designing and owning complete services
Experience building agentic or AI-powered applications with tools such as Google Gemini, AWS Agent Core, or Claude
Strong cloud infrastructure and CI/CD experience
Knowledge of security practices such as OAuth scopes and secure code review
Ability to solve complex bugs such as race conditions and memory leaks
Strong collaboration and mentorship skills

Nice to Have

Experience with MCP/API data orchestration
Experience driving internal AI education and enablement initiatives
Experience collaborating with external AI partners

Benefits

Health insurancedental insurancevision insuranceretirement planpaid time offhsafsalife insurancedisability insurancetuition reimbursement

Tech Stack

AWSAWS Agent CoreCI/CDClaudeGoogle GeminiMCPOAuth

WEX, Inc.

Portland · US · 6600+ employees

WEX (NYSE: WEX) is a global commerce platform that simplifies the business of running a business. WEX has created a powerful ecosystem that offers seamlessly embedded, personalized solutions for its customers around the world. Through its rich data and specialized expertise in simplifying benefits, reimagining mobility and paying and getting paid, WEX aims to make it easy for companies to overcome complexity and reach their full potential.