Senior Middleware Architect Engineer

Hello Everyone , need 13+ experienced consultants for the below mentioned requirement.

Senior Middleware Architect / Engineer

Utility & Regulated Industry Integration Program

Location: Columbus, OH

Engagement Overview

Need 13+ senior middleware engineers to staff a large, regulated utility client's enterprise integration program, spanning grid operations technology (OT), smart meter/AMI data, outage management, billing, and enterprise IT (ERP/CRM). This is a mission-critical integration workstream operating under NERC CIP and related utility regulatory requirements. Engagement is structured 60% onsite (US) and 40% offshore (India), onshore-led with offshore-leveraged delivery. Client identity is confidential for external-facing postings; refer to it as "a Fortune 500 regulated utility client."

Key Responsibilities

Design, build, and maintain middleware integration layers connecting OT systems (SCADA, smart meter/AMI, outage management) with enterprise IT (billing, CRM, SAP/ERP, data warehouse).

Implement and operate enterprise integration platforms - MuleSoft, IBM webMethods/IIB, TIBCO, Dell Boomi, or Azure Integration Services (platform per candidate specialization).

Build and maintain REST/SOAP APIs, event-driven architectures, and message queues (Kafka, IBM MQ, RabbitMQ) for real-time and batch data exchange.

Ensure integration security, reliability, and compliance with NERC CIP and other utility regulatory standards.

Modernize and troubleshoot legacy-to-modern integrations, including mainframe and SAP PI/PO connections.

Partner with grid operations, billing, customer service, and data teams to translate business requirements into integration architecture.

Produce architecture and data-flow documentation sufficient for audit and regulatory review.

Required Qualifications

12+ years of middleware/integration engineering experience, with demonstrable delivery in utilities or another regulated industry (financial services, healthcare, energy).

Hands-on expertise in at least one major enterprise integration platform: MuleSoft, IBM webMethods, TIBCO, Boomi, or Azure Logic Apps/Integration Services.

Direct experience integrating OT/SCADA or IoT/AMI systems with enterprise IT - non-negotiable for this utility environment.

Strong API design (REST/SOAP) and event-streaming/message-queue experience (Kafka, RabbitMQ, IBM MQ).

Working knowledge of regulatory/compliance frameworks relevant to utilities (NERC CIP) or equivalent regulated-industry standards.

Bachelor's degree in computer science, Engineering, or related field, or equivalent hands-on experience.

Preferred Qualifications

SAP PI/PO or SAP Integration Suite experience.

Cloud integration experience on Azure or AWS.

Prior direct employment or delivery experience at a utility, energy, or critical-infrastructure company.

Interview Requirement - Use Case Presentation

Every candidate must present 3 real-world middleware integration use cases they personally designed or delivered, ideally in a utility or other regulated-industry setting. For each use case, candidates should address:

Business problem and context - what systems needed to connect and why.

Technical approach and platform used - architecture, tools, and integration pattern.

Integration complexity - systems connected, data volume, latency/throughput requirements.

Outcome and business impact - measurable result.

Compliance/security considerations addressed, if applicable (e.g., NERC CIP, data protection, access control).

Sourcing Notes

Screen all candidates against the Required Qualifications above before advancing to the use-case presentation round.

Use "a Fortune 500 regulated utility client" in all external-facing postings and communications with candidates.