The average length of service (or employee tenure) at US tech giants is notably short compared to other industries. As of 2025, data from multiple sources indicate the following:

• The average employee tenure at major US tech companies is around 1.3 to 2 years. For example:
  • Meta (Facebook): 1.3–2 years
  • Amazon: 1.5–1.8 years
  • Apple: 1.7–1.85 years
  • Microsoft: 1.8–1.81 years
  • Google: 1.9 years
• For the broader tech sector, the average tenure is typically 2–3 years. This is significantly lower than the US national average for all industries, which is about 4.1 years.
• Software engineers and developers at big tech firms average even lower tenures, around 2 years.
• High turnover is common, with the tech industry’s rate estimated at 13.2%, among the highest of any sector in the US economy.

Key reasons for short tenure: intense competition, rapid industry change, frequent reorganization, and employees often leaving for new opportunities or higher roles elsewhere. Company culture, desire for challenging work, and relationship with management also play important roles in turnover.