The natural question at this point is: What KSAs do you bring to the table?
Fair question. Bachelor's degree in a non technical field. 20+ years as an air traffic controller for the FAA, airframe&powerplant mechanic (aircraft), 9 pilot certificates, aircraft dispatcher, certified electronics technician, FCC GROL with radar endorsement(the old FCC 1st class license). Zero nuke experience.
I'll tell you the same thing I told another hopeful trying to transition to Nuclear Power. Get your fundamentals in order. Two main sources are GP (copyrighted) and DOE Handbooks (free-ware). Most Nuclear Plants use GP (General Physics). Some use the DOE Handbooks.
Though you will be offered a chance to prove yourself if hired. The pace of the training will be much faster than you have ever witnessed. Thusly it would behove you to get a head start on the one area you should have down cold if you wish to be successful.
DOE HandbooksThis will get you started.
DOE-HDBK-1010-92 DOE Fundamentals Handbook, Classical Physics (142 pages)
PDF (1120 KB) Reaffirmation Memorandum
DOE-HDBK-1011/1-92 DOE Fundamentals Handbook, Electrical Science, Volume 1 of 4 (166 pages)
PDF (4255 KB) Reaffirmation Memorandum
DOE-HDBK-1011/2-92 DOE Fundamentals Handbook, Electrical Science, Volume 2 of 4 (118 pages)
PDF (3317 KB) Reaffirmation Memorandum
DOE-HDBK-1011/3-92 DOE Fundamentals Handbook, Electrical Science, Volume 3 of 4 (126 pages)
PDF (2234 KB) Reaffirmation Memorandum
DOE-HDBK-1011/4-92 DOE Fundamentals Handbook, Electrical Science, Volume 4 of 4 (142 pages)
PDF (4800 KB) Reaffirmation Memorandum
DOE-HDBK-1012/1-92 DOE Fundamentals Handbook, Thermodynamics, Heat Transfer, and Fluid Flow, Volume 1 of 3 (138 pages)
PDF (2994 KB) Reaffirmation Memorandum
DOE-HDBK-1012/2-92 DOE Fundamentals Handbook, Thermodynamics, Heat Transfer, and Fluid Flow, Volume 2 of 3 (80 pages)
PDF (1193 KB) Reaffirmation Memorandum
DOE-HDBK-1012/3-92 DOE Fundamentals Handbook, Thermodynamics, Heat Transfer, and Fluid Flow, Volume 3 of 3 (82 pages)
PDF (1214 KB)
DOE-HDBK-1013/1-92 DOE Fundamentals Handbook, Instrumentation and Control, Volume 1 of 2 (132 pages)
PDF (2639 KB) Reaffirmation Memorandum
DOE-HDBK-1013/2-92 DOE Fundamentals Handbook, Instrumentation and Control, Volume 2 of 2 (168 pages)
PDF (3504 KB) Reaffirmation Memorandum
DOE-HDBK-1014/1-92 DOE Fundamentals Handbook, Mathematics Volume 1 of 2 (206 pages)
PDF (1436 KB) Reaffirmation Memorandum
DOE-HDBK-1014/2-92 DOE Fundamentals Handbook, Mathematics Volume 2 of 2 (112 pages)
PDF (932 KB) Reaffirmation Memorandum
DOE-HDBK-1015/1-93 DOE Fundamentals Handbook, Chemistry, Volume 1 of 2 (140 pages)
PDF (3950 KB) Reaffirmation Memorandum
DOE-HDBK-1015/2-93 DOE Fundamentals Handbook, Chemistry, Volume 2 of 2 (138 pages)
PDF (2898 KB) Reaffirmation Memorandum
DOE-HDBK-1016/1-93 DOE Fundamentals Handbook, Engineering Symbology, Prints, and Drawings, Volume 1 of 2 (120 pages)
PDF (8231 KB) Reaffirmation Memorandum
DOE-HDBK-1016/2-93 DOE Fundamentals Handbook, Engineering Symbology, Prints, and Drawings, Volume 2 of 2 (96 pages)
PDF (4453 KB) Reaffirmation Memorandum
DOE-HDBK-1017/1-93 DOE Fundamentals Handbook, Material Science, Volume 1 of 2 (102 pages)
PDF (2217 KB) Reaffirmation Memorandum
DOE-HDBK-1017/2-93 DOE Fundamentals Handbook, Material Science, Volume 2 of 2 (112 pages)
PDF (1441 KB) Reaffirmation Memorandum
DOE-HDBK-1018/1-93 DOE Fundamentals Handbook, Mechanical Science, Volume 1 of 2 (139 pages)
PDF (5136 KB) Reaffirmation Memorandum
DOE-HDBK-1018/2-93 DOE Fundamentals Handbook, Mechanical Science, Volume 2 of 2 (130 pages)
PDF (5465 KB) Reaffirmation Memorandum
DOE-HDBK-1019/1-93 DOE Fundamentals Handbook, Nuclear Physics and Reactor Theory, Volume 1 of 2 (142 pages)
PDF (3464 KB) Reaffirmation Memorandum
DOE-HDBK-1019/2-93 DOE Fundamentals Handbook, Nuclear Physics and Reactor Theory, Volume 2 of 2 (128 pages)
PDF (1988 KB) Reaffirmation Memorandum
DOE-HDBK-1028-2009 Human Performance Improvement Handbook Volume 1 of 2 (175 pages)
PDF (1066 KB)
DOE-HDBK-1028-2009 Human Performance Improvement Handbook Volume 2 of 2 (137 pages)
PDF (471 KB)
DOE-STD-1029-92
(CH-1) Writer's Guide for Technical Procedures (123 pages)
PDF (546 KB)
DOE-STD-1030-96 Guide to Good Practices for Lockouts and Tagouts (49 pages)
PDF (171 KB) Reaffirmation Memorandum
DOE-STD-1031-92
(CH-1) Guide to Good Practices for Communications (31 pages)
PDF (106 KB) Reaffirmation Memorandum
DOE-STD-1032-92
(CH-1) Guide to Good Practices for Operations Organization and Administration (33 pages)
PDF (97.9 KB) Reaffirmation Memorandum
DOE-STD-1033-92
(CH-1) Guide to Good Practices for Operations and Administration Updates Through Required Reading (36 pages)
PDF (158 KB) Reaffirmation Memorandum
DOE-STD-1034-93
(CH-1) Guide to Good Practices for Timely Orders to Operators (29 pages)
PDF (73.8 KB) Reaffirmation Memorandum
DOE-STD-1035-93
(CH-1) Guide to Good Practices for Logkeeping (33 pages)
PDF (111 KB) Reaffirmation Memorandum
DOE-STD-1036-93
(CH-1) Guide to Good Practices for Independent Verification (41 pages)
PDF (122 KB) Reaffirmation Memorandum
DOE-STD-1037-93
(CH-1) Guide to Good Practices for Operations Aspects of Unique Processes (29 pages)
PDF (87 KB) Reaffirmation Memorandum
DOE-STD-1038-93
(CH-1) Guide to Good Practices for Operations Turnover (38 pages)
PDF (102 KB) Reaffirmation Memorandum
DOE-STD-1039-93
(CH-1) Guide to Good Practices for Control of Equipment and System Status (29 pages)
PDF (91 KB) Reaffirmation Memorandum
P.S.
And as a reference to the speed you will work at, you should be able to finish these in approximately 6 weeks.