America is going to see some huge employment shifts in the next decade, as in past decades, thanks above all to technology.

The biggest losers? Bookkeeping, accounting, and auditing clerks, whose ranks are projected to shrink by 149,000 from 2014 to 2024.

We pulled the 12 jobs with the largest total declines in Bureau of Labor Statistics projections (see our past coverage for largest percent declines). Keep scrolling to see who's losing the future.

12. Computer programmers

They write and test code that allows computer applications and software programs to function properly. Their jobs are at risk primarily because of global outsourcing.

Median annual pay: $80,000

US employment in 2014: 329,000

Projected US employment in 2024: 302,000

Projected decline: 27,000 (8%)

11. Molding, coremaking, and casting machine setters, operators, and tenders, metal and plastic

They set up or operate metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products. Their jobs are at risk as companies switch to computer and robot-controlled machines.

Median annual pay: $29,000

US employment in 2014: 130,000

Projected US employment in 2024: 97,000

Projected decline: 32,000 (25%)

10. Switchboard operators, including answering service

They operate telephone business systems equipment or switchboards to relay incoming, outgoing, and interoffice calls. Their jobs are at risk due to increased automation and online services.

Median annual pay: $27,000

US employment in 2014: 112,000

Projected US employment in 2024: 76,000

Projected decline: 37,000 (33%)

9. Cutting, punching, and press machine setters, operators, and tenders, metal and plastic

They set up or operate machines to saw, cut, shear, notch, bend, or straighten metal or plastic materials. Their jobs are at risk as companies switch to computer and robot-controlled machines.

Median annual pay: $31,000

US employment in 2014: 192,000

Projected US employment in 2024: 153,000

Projected decline: 40,000 (21%)

8. Postal service mail sorters, processors, and processing machine operators

They prepare incoming and outgoing mail for distribution at post offices and mail processing centers. Their jobs are at risk due to automatic mail sorting technology and the switch to online services.

Median annual pay: $57,000

US employment in 2014: 118,000

Projected US employment in 2024: 78,000

Projected decline: 40,000 (34%)

7. Tellers

They are responsible for accurately processing routine transactions at a bank. Their jobs are at risk due to the rise of online banking and mobile apps.

Median annual pay: $26,000

US employment in 2014: 521,000

Projected US employment in 2024: 481,000

Projected decline: 40,000 (8%)

6. Sewing machine operators

They operate or tend sewing machines to join, reinforce, decorate, or perform related sewing operations in the manufacture of garment or nongarment products. Their jobs are at risk due to increased automation and outsourcing.

Median annual pay: $23,000

US employment in 2014: 154,000

Projected US employment in 2024: 112,000

Projected decline: 42,000 (27%)

5. Farmworkers and laborers, crop, nursery, and greenhouse

They perform numerous tasks related to growing and harvesting grains, fruits, vegetables, nuts, and other crops. Their jobs are at risk as farms consolidate and adopt technology that raises output per farmer.

Median annual pay: $20,000

US employment in 2014: 470,000

Projected US employment in 2024: 427,000

Projected decline: 43,000 (9%)

4. Executive secretaries and executive administrative assistants

They perform clerical and administrative duties. Their jobs are at risk as technology automates or simplifies much of their work.

Median annual pay: $53,000

US employment in 2014: 777,000

Projected US employment in 2024: 732,000

Projected decline: 45,000 (6%)

3. Postal service mail carriers

They deliver mail to homes and businesses in cities, towns, and rural areas. Their jobs are at risk due to automated sorting technology and the switch to online services.

Median annual pay: $58,000

US employment in 2014: 297,000

Projected US employment in 2024: 219,000

Projected decline: 78,000 (26%)

2. Cooks, fast food

They prepare a limited selection of menu items in fast-food restaurants. Their jobs are at risk due to increased automation.

Median annual pay: $19,000

US employment in 2014: 524,000

Projected US employment in 2024: 444,000

Projected decline: 80,000 (15%)

1. Bookkeeping, accounting, and auditing clerks

They record financial transactions, update statements, and check financial records for accuracy. Their jobs are at risk because of technological changes that automate and otherwise simplify this work.

Median annual pay: $37,000

US employment in 2014: 1,760,000

Projected US employment in 2024: 1,612,000

Projected decline: 149,000 (8%)