To thrive as an AS400 professional, you need strong knowledge of IBM iSeries/AS400 systems, proficiency in RPG, CL, and COBOL programming languages, and experience in system administration or application development. Familiarity with tools such as IBM Navigator for i, DB2, and relevant certifications like IBM Certified System Administrator – Power Systems are highly valuable. Attention to detail, problem-solving abilities, and effective communication are standout soft skills in this position. These qualities are crucial for maintaining mission-critical business systems, ensuring data integrity, and working efficiently with both technical and non-technical stakeholders.