WEX Inc

Sr Software AI Engineer 3 - Context Engineering

WEX Inc$140K — $185K *
US-AnywhereRemote in United States
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6+ years of experience in software engineering focused on distributed systems.
  • Proficient in Java or Scala and Python.
  • Experience building extensible APIs and libraries for developers.
  • Preference for automated, software-defined infrastructure.
  • Hands-on experience with agent development frameworks such as LangGraph or CrewAI.

Responsibilities

  • Contribute to development of a high-scale, AI-ready Data Lakehouse.
  • Hands-on prototyping of Multi-Agent Orchestration and memory management.
  • Maintain high standards for code quality and participate in architecture reviews.
  • Build platform-level interfaces for agentic workflows.
  • Develop systems for Reasoning-based Retrieval beyond basic search.
  • Implement emerging standards for interoperability with various LLM providers.

Benefits

  • Health, dental, and vision insurances
  • Retirement savings plan
  • Paid time off
  • Health savings account
  • Tuition reimbursement
Full Job Description
As an AI Platform Engineer (SDE 3), you will be a key builder of the high-performance software foundation that powers our enterprise AI. While your expertise lies in distributed systems and cloud-native architecture, you will apply these skills specifically to the "Context Layer"-the specialized infrastructure required to fuel next-generation Agentic AI workflows. You will work at the intersection of systems programming and modern AI infrastructure to solve practical problems in real-time data orchestration and multi-cloud compute optimization. This is a "platform-as-a-product" role where you build the tools and SDKs that enable other engineers to build autonomous agents with ease.

Key Responsibilities
  • AI Infrastructure Implementation: Contribute to the development of a high-scale, AI-ready Data Lakehouse optimized for AI Agent operations and low-latency context retrieval.
  • Agentic R&D & Prototyping: Hands-on prototyping of emerging architectural patterns, such as Multi-Agent Orchestration and autonomous long-term memory management.
  • Engineering Excellence: Maintain high standards for code quality and CI/CD, participating in cross-functional architecture reviews and troubleshooting complex system bottlenecks.
  • Agentic Ecosystem Development: Build platform-level interfaces for agentic workflows, focusing on "Host-to-Server" communication and tool-execution environments.
  • Contextual Fabric Construction: Develop systems that move beyond basic search into Reasoning-based Retrieval, helping the platform understand the intent behind an agent's query.
  • Protocol Integration: Implement emerging standards like the Model Context Protocol (MCP) and Agentic RAG to ensure interoperability between the platform and various LLM providers.


Qualifications & Experience

Software Engineering & Systems
  • Experience: 6+ years of software engineering experience with a focus on distributed systems.
  • Core Languages: Proficiency in Java or Scala and Python.
  • Framework Development: Experience building extensible APIs and libraries used by other developers.
  • Software-Defined Infrastructure: A preference for building automated, software-defined infrastructure over manual configuration.

Agentic Development & AI Trends
  • Agentic Design: Hands-on experience with agent development frameworks such as LangGraph or CrewAI and the transition from static RAG to Agentic RAG.
  • Interoperability: Knowledge of the Model Context Protocol (MCP) and how it allows AI agents to interact with diverse data sources.
  • AI-Ops: Experience building "AI-native" features, including automated LLM-based evaluations within the CI/CD pipeline.
  • Safety & Governance: Understanding of Human-in-the-Loop (HITL) triggers to ensure safety in autonomous systems.

CI/CD & Cloud Operations
  • GitOps & Delivery: Experience with GitOps workflows (e.g., ArgoCD or Flux) to manage versioned platform configurations and AI prompt templates.
  • Infrastructure-as-Code (IaC): Proficiency in Terraform to build reusable modules that enforce organizational standards across cloud accounts.
  • Modern Pipelines: Ability to design CI/CD pipelines (e.g., GitHub Actions) that integrate automated testing and security scanning.
  • Cloud Mastery (AWS & Azure): Hands-on experience navigating and configuring AWS and Azure Management Consoles, including core services like IAM, EC2/VMs, and S3/Blob storage.
  • Observability: Experience using OpenTelemetry (OTel) to track system performance and AI-specific success metrics.

Leadership & Education
  • Collaboration: A proven track record of collaborating across autonomous teams to drive the adoption of new technologies.
  • Communication: Ability to clearly communicate technical trade-offs to both fellow engineers and stakeholders.

Education: Bachelor's or Master's degree in Computer Science (Distributed Systems focus) preferred, or equivalent deep industry experience.

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section.

Pay Range: $140,200.00 - $185,800.00

About WEX Inc

WEX Inc is a provider of corporate payment solutions. The company operates in three segments: Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions. The Fleet Solutions segment provides payment and transaction processing services to commercial and government fleets. The Travel and Corporate Solutions segment focuses on providing payment solutions to businesses that have employees who travel for work. The Health and Employee Benefit Solutions segment provides healthcare payment products and software, as well as payroll and HR solutions.
Learn more about WEX Inc
Size
5,600 employees
Market Cap
$6.9 billion
Industry
Net Income
-$243.6 million
Founded
1983
5 Year Trend
+12.8%
Revenue
$1.5 billion
NASDAQ

Similar Jobs

More Jobs at WEX Inc

More Enterprise Technology Jobs

Find similar Sr Software AI Engineer 3 - Context Engineering jobs: