A Checklist identifying key tasks, skills, and responsibilities that law firm junior startup associates should develop and master to help advance their practice and career. This Checklist covers startup-specific tasks, deal and client management skills, and other professional skills, such as time management and business development, that junior startup associates should acquire during their first three years of practice. Although not exhaustive, this Checklist provides a guidepost for junior startup associates at law firms of all sizes and is representative of a general startup practice. For information regarding skills development for mid-level and senior level startup associates, see Midlevel Startup Associate Development Checklist and Senior Startup Associate Development Checklist.