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# IBM ACE Senior Developer

- **Company:** REAL CAPITAL SOLUTIONS GP, LLC
- **Location:** New York, NY, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon S3, Audit Trail, User Authentication, Cloud Computing, DevOps, Document Management Systems, Middleware, File Transfer, Identity and Access Management, JSON, Metadata, OAuth, Salesforce.Com, Systems Integration, Extensible Markup Language (XML), Data Logging, Enterprise Integration, Integration Frameworks, Restful APIs
- **Published:** September 17, 2026
- **Apply:** https://www.careerjet.com/jobad/us8a5acfa75b278004739a411b7a76da47

## About the Role

* 6+ years of middleware / integration development experience

 * Strong hands-on experience with IBM App Connect Enterprise (ACE) (v11+ preferred)

 * Proven experience handling file and binary content in integrations

 * Deep understanding of integration design patterns for documents/files

 * Experience with REST APIs, JSON/XML, and multipart payloads

 * Hands-on experience integrating with AWS S3 (upload/download, security, lifecycle)

 * Experience integrating with Salesforce APIs, especially file/content operations

 * Strong knowledge of OAuth 2.0, JWT, TLS, and enterprise security best practices

 * Ability to design for performance, scalability, and reliability

## Description

* Design and develop integrations using IBM App Connect Enterprise (ACE)

 * Implement file and document management integration patterns, including:

 * Large file handling and streaming - Pass-through vs. transform patterns

 * Metadata + binary content separation, chunking, buffering, and payload size management

 * Build REST-based APIs for document management operations

 * Integrate Salesforce with AWS S3 for secure document storage and retrieval

 * Implement secure authentication and authorization (OAuth 2.0, IAM roles, certificates, TLS)

 * Design robust error handling, retry, and idempotency mechanisms for file transfers

 * Implement logging, tracing, and auditability for document transactions

 * Support deployments across DEV / INT / QA / PROD environments

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