We are hiring "IBM IIB Developer" for Jacksonville, FL location. This is a long term contract with 100% onsite work mode. Local candidates preferred. In-person interview is required. We are seeking a skilled and detail-oriented IIB (IBM Integration Bus) / ACE (App Connect Enterprise) Developer to join our integration team. The ideal candidate will have hands-on experience in developing, deploying, and managing integration flows using IBM’s middleware platforms. You will be responsible for designing and implementing solutions that integrate applications and systems across the enterprise. Required skills & experience: • Bachelor’s degree in Computer Science, Engineering, or a related field. • 8+ years of experience working with IBM IIB and ACE. • Proficient in ESQL, XML, XSD, WSDL, JSON, and SOAP/REST APIs. • Strong understanding of IBM MQ, JMS, and other messaging protocols. • Experience with DataPower, API Connect, or other IBM Integration products is a plus. • Familiar with DevOps, CI/CD pipelines, and version control systems (e.g., Git). • Knowledge of cloud environments (e.g., AWS, Azure, IBM Cloud) is desirable. • Excellent debugging, problem-solving, and communication skills. • Experience in Agile/Scrum methodologies is desired. • Familiarity with ITIL processes will be an added advantage. • IBM Certification is desired.