I = Introvert; S = Sensing; F = Feeling; J = Judging; What the personality type “Protector” means? The personality type ISFJ is often called Protector or Defender. They do desire to serve others. They need to be needed. They are modest, easily hurt and not spontaneous. The Protectors or the Defenders do poses a rich inner world and in order to reveal them you need a deep understanding of their personality. Exceptional memory, loyal, sympathetic – all this characteristics wrapped with their strong follow-through skills. Some job positions recognized as most-likely to be ISFJs are Artist, Bookkeeper, Child Care, Designer, Editor, Entrepreneur, Health Service, Police, Shopkeeper, Writer. Key-words for the personality type ISFJ – Protector: Reserved, Practical, Devoted, Organized, Unassuming, Traditional, Caring, Methodical, Thoughtful, Observant, Kind, Dedicated, Calm, Factual, Principled, Persistent.