Simplifier

Think of equity as owning a "slice of the pie." When a new company starts, that pie is small, but everyone hopes it will grow into a giant feast one day. The Head of Engineering is the person who builds the actual product—like the lead architect and builder of a house—so their slice needs to be big enough to keep them excited about the long journey ahead. In a brand-new startup, a fair slice for this role usually falls between 1% and 10% of the company. The exact amount depends on when they join and how they are being paid. If they are joining right at the beginning and taking a very low salary, they should get a much larger slice. If the company already has some money and can pay them a more normal salary, their slice will typically be on the smaller side. The main goal is to make sure this person feels like a true partner. You want them to care about the company’s success as much as the founders do. By giving them a fair share of ownership, you are making a promise:

Startup Lawyer

For a non-founding Head of Engineering joining at the pre-seed or Seed stage, a typical equity grant ranges from 1% to 5%. If the individual is joining early enough to be considered a late-stage co-founder, that figure may climb toward 10%. However, the specific percentage is less important than the legal structure governing the grant; "fairness" must be balanced against the long-term health of your cap table. From a risk mitigation standpoint, you must never issue this equity upfront. A standard four-year vesting schedule with a one-year cliff is non-negotiable. This protects the company from "dead equity"—shares held by someone who is no longer contributing. If the hire doesn't work out within the first twelve months, the cliff ensures they walk away with zero equity, preserving your pool for a replacement. Finally, ensure the equity grant is legally contingent upon the execution of a Proprietary Information and Inventions Agreement (PIIA). In a web application startup, your intellectual property is your only real asset. The equity is your leverage to ensure that every line of code written is owned exclusively by the company. Do not move forward without a formal Stock Option Plan or Restricted Stock Agreement that clearly outlines these protections.

Startup CTO

For a founding-level Head of Engineering in a pre-seed or seed-stage startup, a fair equity split typically ranges from 1% to 5%. If they are joining before significant funding and taking a deep salary cut, that figure can climb toward 7% to 10%. This isn't just a "management" premium; it is compensation for the high-stakes responsibility of establishing the initial codebase and technical trajectory. From a technical implementation standpoint, you are paying for someone who can balance rapid development cycles with long-term scalability. A Head of Engineering must ensure that the MVP doesn't accumulate so much technical debt that it requires a total rewrite by Series A. They are responsible for building a foundation that allows for high velocity today without sacrificing the ability to scale to 100,000 users tomorrow. The equity must be tied to a standard four-year vesting schedule with a one-year cliff. This ensures they are incentivized to see the architectural lifecycle through. You need someone who views technical debt as a real liability on the balance sheet and will implement the CI/CD pipelines and infrastructure necessary to keep the product lean, stable, and ready for rapid iteration.

Venture Capitalist

In a high-growth startup, equity is the primary lever for aligning talent with long-term ROI. For a Head of Engineering who is an early hire—but not a co-founder—a fair equity stake typically ranges from 1% to 3%. If the individual is a "found

Equity Split Advisor

A fair equity split for a Head of Engineering must be calculated by weighing three primary variables: the stage of the venture, the individual’s risk profile, and their projected contribution to the technical roadmap. If this individual is joining pre-funding and accepting a significantly below-market salary, they are effectively a late-stage co-founder. In such cases, an equity stake between 5% and 10% is analytically sound to compensate for the high opportunity cost and the foundational nature of their work. If the startup has already secured initial seed funding and is offering a more competitive salary, the equity range typically shifts to 1% to 3%. This reflects a reduction in financial risk while still acknowledging the critical role the Head of Engineering plays in scaling the product and building the technical team. Fairness dictates that the allocation should be high enough to ensure long-term alignment with the founders’ interests but calibrated against the capital already raised and the dilution of existing stakeholders. To protect the integrity of the cap table, this equity must be subject to a standard four-year vesting schedule with a one-year cliff. This ensures that the distribution of ownership is tied to the actual realization of value over time. An analytical approach to fairness recognizes that equity is not a gift for joining, but a mechanism for rewarding the sustained creation of the company’s core intellectual property and technical infrastructure.

Points of agreement

• The 1% to 10% Range:** All perspectives agree that a fair equity stake for a Head of Engineering typically falls within the 1% to 10% range, depending on the specific circumstances of the hire.
• Risk-Reward Correlation:** There is a consensus that equity should be inversely proportional to salary and company stage; an individual joining earlier and taking a lower salary (acting as a "late-stage co-founder") deserves a significantly higher percentage than one joining after funding with a market-rate salary.

Points of disagreement

• The "Fair" Ceiling for Early Hires:** There is slight variation in the upper limits for non-founding hires; some perspectives (like the Equity Split Advisor) cap post-funding equity at 3%, while others (the Lawyer and CTO) suggest it can reasonably go as high as 5%.
• Primary Valuation Metric:** The perspectives prioritize different factors to justify the split. The CTO emphasizes technical debt and scalability as the value driver, the Lawyer focuses on cap table health and legal protections like vesting, and the VC focuses on long-term ROI and talent alignment.