IIB / IBM ACE Integration Developer

About the role

We're seeking a skilled IIB / IBM ACE Integration Developer to join our growing tech team. In this role, you'll be responsible for designing, developing, and configuring integration flows within IBM App Connect Enterprise (ACE) using Data Format Description Language (DFDL) for complex data parsing and serialization. You'll be the bridge between business systems, customers, and trading partners while building and managing EDI, API, and application integrations.

Key Responsibilities

• IIB / IBM ACE / MuleSoft Integration Experience
• Hands-on experience with IIB / IBM ACE / Mulesoft Integration
• Designing, building, and deploying EDI workflows, maps, and transformations
• DFDL Schema Design
• Create, test, and optimize DFDL models to map and parse non-standard, custom text, CSV, fixed-width, and legacy binary file formats
• Write and maintain complex DFDL schemas using regular expressions and handle multi-format messages or variable-length records
• Build message flows that utilize DFDL to convert unstructured or proprietary data formats into standard XML or JSON structures, and vice-versa
• Leverage legacy system integration to connect modern applications with legacy mainframes and backend systems
• Process complex industry-specific messages (EDI, SWIFT, HL7) via DFDL
• EDI Standards & Protocols Proficiency in EDI formats: X12, EDIFACT, TRADACOMS, etc.
• Understanding of communication protocols: AS2, FTP/SFTP, HTTP/S, VANs
• Data Formats Experience working with XML, JSON, CSV, Flat Files
• Integration Development
• Strong skills in data transformation, routing, scripting
• Debugging, monitoring, and error handling of integration flows
• Problem Solving & Troubleshooting
• Root-cause analysis for integration failures, including DFDL parser and IBM ACE runtime issues
• Debug data parsing issues, schema validation errors, and performance bottlenecks
• Timely resolution of production issues
• Documentation & Collaboration
• Clear documentation of workflows, mappings, and processes
• Collaboration with clients, business analysts, and development teams

Qualifications

• 5-8 years of hands-on experience with IBM Integration Bus (IIB) and IBM App Connect Enterprise (ACE) v11/v12 middleware development (both required; Mulesoft experience welcomed as equivalent adjacent background)
• Proven experience writing and maintaining complex DFDL schemas, utilizing regular expressions, and handling multi-format messages or variable-length records
• Proficient in using the IBM ACE Toolkit for DFDL schema generation, testing, and debugging
• Strong understanding of ESQL, mapping nodes, XML Schema (XSD), and standard messaging protocols (MQ, HTTP, REST, SOAP)
• Proficiency in EDI standards (X12, EDIFACT, CSV, XML, JSON)
• Strong knowledge of data mapping, transformation, and communication protocols (FTP/SFTP, AS2, HTTP/S, etc.)
• Experience with industry messaging standards (EDI, SWIFT, HL7) is a big plus
• Familiarity with ERP systems (SAP, Oracle, NetSuite) is a big plus
• Strong problem-solving, communication, and documentation skills

What Success Looks Like in the First 90 Days

• 30 Days In
• Develop a deep understanding of FIQ's integration architecture, active client environments, and the IBM ACE/IIB platform setup in use
• Review existing DFDL schemas, message flows, EDI mappings, and integration documentation
• Establish strong working relationships with client stakeholders, business analysts, and the delivery team
• Identify any immediate gaps, technical debt, or risks in the current integration landscape
• 60 Days In
• Independently design, build, and deploy integration flows and DFDL schemas with minimal supervision
• Begin resolving production issues and debugging parser errors with speed and accuracy
• Contribute to documentation of workflows, mappings, and data transformation logic
• Demonstrate credible, client-facing communication on integration design and delivery progress
• 90 Days In
• Own end-to-end delivery of assigned integration workstreams, from design through testing and go-live
• Deliver well-documented, tested, and production-ready DFDL schemas and IBM ACE message flows
• Proactively identify and resolve performance bottlenecks, schema validation errors, and edge cases
• Be recognized as a reliable, self-sufficient contributor by the client and the FIQ delivery team

Key Performance Indicators (KPIs)

• Quality and accuracy of DFDL schemas and integration flows delivered
• Speed and reliability of issue resolution, including production incidents and parser errors
• On-time delivery of integration milestones against the project plan
• Client satisfaction and feedback from stakeholders and business analysts
• Completeness and clarity of technical documentation
• Volumes and complexities of EDI mappings, transformations, and workflows successfully deployed