Associate Principal Engineer

Wesco is hiring a senior hands-on engineer to help build its next-generation Warehouse Execution System (WES), a vendor-neutral orchestration platform connecting Wesco s WMX/WMS with warehouse automation technologies such as conveyors, sortation, AS/RS, goods-to-person robotics, AMRs, packing systems, scanners, PLCs, and vendor WCS platforms. This is not a conventional application-development role. We are looking for someone who combines strong distributed-systems engineering with warehouse automation or industrial integration experience.

Core Responsibilities

• Contribute to design and build Warehouse Execution System(WES) core services for task lifecycle, orchestration, routing, exceptions, retry/replay, and audit.
• Develop stable canonical APIs between WMX and automation systems.
• Build and evolve a reusable vendor-adapter framework for REST, MQTT, OPC-UA, Sparkplug B, socket-based and other industrial protocols.
• Engineer cloud/edge execution patterns for resilience, buffering, disconnected operation, and reconciliation.
• Lead architecture decisions, design reviews, engineering standards, and reference implementations.
• Mentor engineers while remaining deeply hands-on in design and code.

Must-Have Experience

• 10+ years of software engineering experience, ideally in a senior/principal IC role.
• Strong Java, JavaScript and Spring Boot background.
• Strong experience of AI-assisted and accelerated coding with Claude/CoPilot/etc.
• Deep knowledge of distributed systems, including idempotency, retries, ordering, event-driven architecture, messaging, state machines, concurrency, and transactional patterns.
• Experience building production cloud platforms on Azure or another major cloud.
• Strong API, microservices, SQL, security, observability, and CI/CD experience.
• Ability to design systems where failures can trigger real-world physical consequences.

Strongly Preferred

Experience with one or more of:

• WES, WCS, WMS or warehouse automation
• AS/RS, AMRs/AGVs, conveyors, sortation or goods-to-person systems
• PLC/SCADA or industrial integrations
• OPC-UA, MQTT, Sparkplug B, VDA 5050
• Azure Service Bus, Redis, Kubernetes, Terraform, OpenTelemetry
• Automation vendors such as Dematic, Lucas, Scallog, AutoStore, KPI/Queen City, PeakLogix or similar

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