FIRE for Engineers: Retire Early as an Engineering Professional
FIRE Number
$1.6M
Target Retirement Age
52
Years to FIRE
22
Monthly Savings Needed
$3K
Non-software engineers (mechanical, civil, electrical, chemical, aerospace) typically earn $85,000–$150,000+ depending on sector and experience. Unlike tech industry peers, traditional engineering roles often include excellent defined benefit pensions at defense contractors, utilities, and government agencies — a powerful FIRE supplement that reduces the required portfolio significantly.
The defense contractor engineer has arguably the best FIRE profile outside tech: $110,000–$160,000 salary, 4–8% 401k match, and in many cases a defined benefit pension after 20+ years of service. A Raytheon or Lockheed engineer who stays 25 years might receive $45,000–$65,000/year in pension income — dramatically shrinking the required investment portfolio. The FIRE number for a pension-protected engineer can be as low as $500,000–$1,000,000 above their pension coverage.
Civil engineers often work in government (city, state, or federal), which provides additional benefits: FERS or CSRS pension for federal engineers (replacing 30–60% of salary after 20–30 years), potential union membership, and job stability. Federal engineers with FERS pension and TSP (Federal Thrift Savings Plan — the government's equivalent of a 401k with excellent low-cost fund options) have a powerful retirement combination.
The engineering career path typically plateaus in the $120,000–$160,000 range outside management. Engineers who move into management or consulting can significantly increase income, but many prefer technical tracks. Geographic considerations matter significantly — an electrical engineer earning $120,000 in Dallas vs. San Jose keeps far more after-tax income (no CA state income tax) and can retire much earlier on the same gross salary.