Manhattan MAO Lead Engineer: OMS & Integrations

Techblocks; New York (NY); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Techblocks in Manhattan, NY is seeking a Lead Engineer with deep expertise in Manhattan Active Order Management (MAO) and Manhattan OMS to design and implement custom extensions, and to integrate them with distributed order management, supply chain intelligence, and fulfillment operations.

You will guide development on MAO/OMS, DOM, EOM, ATC, SCI, and REST/API integrations, collaborating with business teams to translate order management into scalable technical solutions.

Qualifications

• 5+ years of experience with Manhattan DOM, EOM, ATC, SCI and MAO custom extensions.
• Strong knowledge of MAO/OMS and custom extension development.
• Expertise in Java, SQL, REST APIs and JSON.
• Deep understanding of supply chain, fulfillment, and order orchestration.
• Experience in system architecture, integration design, and scalability.
• Familiarity with Agile and Waterfall SDLC methodologies.
• Hands-on experience with payment processing, fraud, tax, WMS, and ERP integrations.

Responsibilities

• Design, develop, and maintain custom extensions on MAO/OMS.
• Configure and manage DOM, EOM, and ATC functionalities.
• Implement supply chain intelligence and order fulfillment workflows.
• Integrate Manhattan OMS with payment processing, fraud, tax systems, WMS, and ERP.
• Develop REST API integrations and optimize system performance.
• Provide technical leadership in architecting Manhattan OMS solutions.
• Guide teams on best practices for customization and scalability.

Skills

MAO/DOM/EOM

MAO extensions

Java

SQL

REST APIs

JSON

Supply chain

System architecture

SDLC methodologies

Integration design

Agile & Waterfall

Payments/Tax/WMS/ERP

Job description

Techblocks in Manhattan, NY is seeking a Lead Engineer with deep expertise in Manhattan Active Order Management (MAO) and Manhattan OMS to design and implement custom extensions, and to integrate them with distributed order management, supply chain intelligence, and fulfillment operations.

You will guide development on MAO/OMS, DOM, EOM, ATC, SCI, and REST/API integrations, collaborating with business teams to translate order management into scalable technical solutions.