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"Leading role" for Engineering / STEM: what counts

Key answer

In Engineering / STEM the "Leading role" criterion is carried by 3 kinds of evidence below; the petitions that fail it usually stumble on the traps in the second list.

What works in Engineering / STEM

  • Technical leadership of a critical project with measurable impact on the product, security, or revenue
  • Making key engineering decisions: architecture, standards, reliability, scaling
  • Confirmed impact beyond the team: adoption of practices, mentoring, recognition by experts

Traps that cost the criterion

  • Description of routine duties without evidence of leadership or personal contribution
  • No outcome metrics: performance, incident reduction, cost savings, user growth
  • Focus on the position instead of facts: the title is listed, but decisions and impact are not shown

What the officer has to find

It is not enough to show that the applicant was a qualified employee, manager, or participant at a well-known company. It must be proven that the role was substantively leading or critical, within a significant organization or initiative, and that this is supported by specific evidence rather than only general support letters or a job description.

  • The organization, department, project, or initiative in which the role was performed had recognized significance, reputation, or substantial impact in the relevant field.
  • The applicant's role was central to the success, direction, results, or key functions of the organization or project.

Where it falls apart: The evidence describes job duties but does not show the applicant's actual influence on key decisions or results.

The full methodology of the "Leading role" criterion

How it is worded

The applicant's contribution was critical to the success of the product, feature, or initiative because it ensured strategic coherence, technical soundness, and achievement of key results.

Avoid: His work was useful to the company and was viewed positively by colleagues.

What else Engineering / STEM is asked for

  • Employer letters, architectural decisions, impact metrics
  • Offers, payroll, market salary benchmarks
  • Impact metrics are not confirmed by objective sources
  • Leading or critical role not sufficiently proven

The whole picture for Engineering / STEM

If the officer already objectedfrom 98 real cases

From community discussions

  • «Can you use 1 company for 2 criteria? For example, worked at company X, and tie both a critical role AND contribution to that experience? Can one manager sign 2 recommendation letters for these different criteria? Or can the manager give 1 letter describing both the contribution and the critical role?»

    Olena · from public community chats

  • «In the vein of "I'm claiming the Critical role for the organisation criterion" - you need letters from rank-and-file employees. They, of course, don't get googled.»

    community member · from public community chats

  • «Working on projects - a key role. I joined the company when there were 8 people and it was a small security lab. And over 10 years we grew into a group of companies with more than 400 employees and top clients. In large part thanks to my work as head of the red team. Even though it's teamwork, not just me, my contribution is significant.»

    Sergey · from public community chats

Personal opinions of community members from public discussions, not legal advice.

The same criterion in other fields

Reference information and community experience, not legal advice. The AAO figures are lessons from appeals, not approval odds; fees and timelines change - verify on uscis.gov.