If you’re an international researcher or STEM professional finishing up your F‑1 Optional Practical Training (OPT) or STEM OPT, you might be wondering what’s next? Your student work authorization has an expiration date, and you’re likely looking for a longer-term visa or even a green card to continue your career in the United States. The good news is that the U.S. immigration system offers several pathways tailored for highly skilled individuals. This guide is written for PhD candidates, postdocs, professors, engineers, startup founders, and other talented professionals who are already in the U.S. on F‑1 status and want to plan the next steps. 

Life After OPT: Planning Your Next Move

Life after OPT can feel like standing at a crossroads. You’ve spent years building expertise in your field, and you want to keep the momentum going. But to do that in the U.S., you need the right visa or status. Many people default to the H‑1B (the well-known work visa), but H‑1B visas involve a lottery and strict quotas. What if you don’t win the H‑1B lottery, or what if you aspire to something beyond a temporary work visa?

For researchers and highly skilled professionals, there are alternatives that play to your strengths. Three of the most promising pathways are:

• O‑1 Visa: a temporary (nonimmigrant) visa for individuals with “extraordinary ability” in their field. 
• EB‑2 Visa (Employment-Based Second Preference): a permanent resident (green card) category for advanced-degree professionals or those with exceptional ability. 
• EB‑2 National Interest Waiver (NIW): a special sub-category of EB‑2 that lets you self-petition for a green card if you can show your work is in the national interest of the United States.

The O‑1 Visa: For “Extraordinary Ability” (The Star Researcher Path)

The O‑1 is a temporary work visa for individuals who can demonstrate extraordinary ability or achievement in fields like science, education, business, or athletics. This visa is for people who are outstanding in their field, with sustained national or international recognition for their work. The official definition says you must be “one of the small percentage who have risen to the very top of the field.” But don’t let that scare you off; you don’t need a Nobel Prize to get an O‑1. Many early-career researchers and professionals have successfully qualified by compiling evidence of their achievements.

There are two types of O-1 visas: O-1A and O-1B. The O-1A is for individuals in the sciences, education, business, or athletics, while the O-1B is for those in the arts or the motion picture and television industries. Though the fields are different, both require proof of sustained excellence and recognition. For this article, we will be focusing on the O-1A visa. We will talk about the O1-B visa in a separate piece.

It’s important to note that the O‑1 visa requires a U.S. employer or agent to act as the petitioner—self-sponsorship isn’t allowed. This can be a barrier for individuals without a job offer, but it’s not necessarily a dealbreaker. In some cases, individuals working with or through their own U.S.-based companies have found ways to meet the employer requirements, provided there's a clear and legitimate employer-employee relationship. For founders and entrepreneurial professionals, this path may be worth exploring. We’ll touch on it later in the article.

To qualify for an O-1 visa, you generally need to show either:

• One big, internationally recognized award (think something like an Olympic medal or a major prize in your discipline), or
  
  
• At least 3 out of 8 criteria set by USCIS demonstrating your excellence. These criteria include things like:
  
  
  
  • Significant prizes or awards in your field (they don’t all have to be Nobel-level; even nationally recognized scholarships or dissertation awards can count in STEM fields).
    
    
  • Membership in associations that require outstanding achievements (for example, an honorary society that only top performers can join).
    
    
  • Published material about you in professional publications or major media.
    
    
  • Scholarly articles that you have authored in reputable journals.
    
    
  • Participation as a judge of others’ work (maybe you’ve been a peer reviewer for journals or sat on a judging panel).
    
    
  • Original scientific or scholarly contributions of major significance in your field.
    
    
  • Leading or critical role at an organization with a distinguished reputation.
    
    
  • High salary or remuneration compared to others in the field.
    
    

In practice, an O‑1 petition involves collecting a portfolio of evidence (letters from prominent people attesting to your impact, copies of your publications and citation counts, news articles citing your work, etc.) and a written petition explaining how you meet the criteria. A U.S. employer or agent must file the petition on your behalf, you can’t simply apply for an O‑1 on your own. This employer could be a university, a company, or even your own startup’s U.S. entity acting as an “agent”. A peer review letter (an advisory opinion from an expert group in your field) is also usually required as part of the package.

The O‑1 is ideal for high-achieving individuals in academia or industry who have a strong track record relative to their career stage. For example: a postdoctoral researcher with an impressive list of publications and citations, a PhD student who’s won prestigious awards and received media coverage, or a tech professional who developed patented innovations and led critical projects. It’s also a common choice for startup founders or entrepreneurs who’ve garnered recognition for their work.

That said, it’s important to remember that O‑1 visas do not allow for self-petitioning. Every applicant must have a U.S. employer or agent act as their petitioner. For founders, this usually means setting up a company that can serve in that role, but even then, there must be a clear and legitimate employer-employee relationship. For instance, if a founder is applying as CEO, the company should have a board with at least two other members who hold the authority to oversee, and if necessary, terminate their role. While we won’t go into all the legal specifics here, this structure helps demonstrate what’s known as “bona fide employment,” which is essential for approval.

It’s also a common choice for startup founders or entrepreneurs who have garnered recognition.

The EB‑2 Visa: Advanced Degree (and Exceptional Ability) Path to a Green Card

An EB‑2 visa actually means U.S. permanent resident status (a green card) under the second preference of employment-based immigration. It’s aimed at two groups: professionals with advanced degrees (master’s or Ph.D., or a bachelor’s plus 5+ years of progressive experience), and people with exceptional ability in the sciences, arts, or business. Most of the time, EB‑2 requires you to have a job offer from a U.S. employer who is willing to sponsor you, and it also requires a labor certification (often called PERM) approved by the Department of Labor. Labor certification is a process where the employer must prove that there are no sufficient U.S. workers who are able, willing, and qualified for the position, and that hiring you won’t adversely affect U.S. workers’ wages and conditions.

In practical terms, a typical EB‑2 process (without NIW) goes like this:

1. PERM Labor Certification: Your employer goes through recruiting and advertising for your position, and if no qualified U.S. worker is found, they file a PERM application with the Department of Labor.
   
   
2. I-140 Immigrant Petition: Once PERM is approved, your employer files Form I-140 with USCIS, classifying you under EB‑2. This is where the employer proves you meet the qualifications and that the company can pay the offered wage.
   
   
3. Wait for a visa number & apply for green card: Each approved employment petition gets a priority date. EB‑2 has annual numerical limits and per-country caps. If you’re from a country with low demand (most countries), the visa is often “current”, meaning as soon as your I-140 is approved, you can immediately file your green card application. If you’re from a high-demand country (notably India or China in EB‑2), you might have to wait in line for a visa slot because of the annual caps.
   
   
4. Adjustment of Status (or Consular Processing): If you’re in the U.S., you file I-485 to adjust to permanent resident status. While that’s pending, you can typically get a work permit and travel permit after ~6–8 months, which is super helpful. If you’re abroad, you’d do consular processing with the National Visa Center and an interview at a U.S. consulate. Once the final step is approved… voilà, you become a green card holder (permanent resident).
   
   

The standard EB‑2 route is best for those who have a willing employer sponsor and hold an advanced degree or equivalent. If you just finished your Ph.D. or Master’s in the U.S. and got a job offer in industry or a long-term position in academia, this could be you. Many large tech companies and universities routinely sponsor international hires for EB‑2. If you’re a valued employee, many employers will handle the process and costs of the green card sponsorship. EB‑2 is also appropriate if your accomplishments aren’t “award-winning” level but you have strong qualifications that an employer needs.

You can also qualify as a person of “exceptional ability” under EB‑2 without a specific advanced degree. The government defines exceptional ability as “a degree of expertise significantly above that ordinarily encountered” in the field. There’s a set of 6 criteria, and you must meet at least 3 of them. This is less commonly used than the advanced degree route, but it’s an avenue if, say, you have a bachelor’s and a decade of outstanding work experience with some accolades.

The EB‑2 National Interest Waiver (NIW): Self-Petitioned Green Card for the Greater Good

The NIW is intended for highly skilled people whose work has broad significance for the country. It’s popular among researchers, scientists, and others in STEM fields (and also entrepreneurs or professionals in areas like healthcare, national security, etc.). To be successful, you must show that waiving the normal requirements will benefit the United States. Since 2016, USCIS has used a framework with three main prongs:

1. The proposed endeavor has substantial merit and national importance: “Substantial merit” could be scientific research, technological development, healthcare improvements, entrepreneurial ventures, etc., that have value. “National importance” means it has broader implications, for example, your research could benefit U.S. public health or competitiveness, or your startup could create jobs or advance critical technology. It doesn’t necessarily have to be national in scope, but USCIS looks for a wide impact or significance.
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2. You are well-positioned to advance the endeavor: This is about you and your track record. USCIS will ask: do your education, skills, past achievements, and plan make it likely that you will succeed in your important work? You need to provide evidence of your accomplishments and a clear plan or trajectory. Letters of recommendation from experts in your field can carry a lot of weight here, explaining how you’ve contributed and why you’re the real deal who can deliver results. Being “well-positioned” doesn’t mean you have to guarantee success, just that you have a solid chance and the right background to make a significant impact.
   
   
3. On balance, it would benefit the U.S. to waive the job offer and labor certification requirement: The final prong is a bit of a balancing test. It asks: even though labor certification is usually a good thing to protect U.S. workers, in your case, is it better for America to not require that, so you can just get your green card and get to work? Essentially, this involves showing that your contributions are so valuable that the national interest outweighs any modest benefit of forcing you to have a job offer. For example, if you’re a cutting-edge cancer researcher, it’s in the national interest to allow you to continue your research here, even if you don’t have a specific employer lined up, rather than potentially lose your talent to another country. You can argue that the traditional process is impractical for you. If you meet the first two prongs strongly, the third usually follows naturally.
   
   

Note that NIW is not a separate category from EB‑2 advanced degree or exceptional ability. You must first qualify as either an advanced degree professional or have exceptional ability. In practice, most NIW applicants have at least a master’s or Ph.D. (which covers the advanced degree bit). If you only have a bachelor’s, you’d need 5+ years of experience to qualify for EB‑2 (or try to claim exceptional ability with strong evidence). Most NIW seekers are Ph.D. holders or Ph.D. candidates in research fields, or entrepreneurs with advanced degrees, etc., because that makes a compelling case. If you would like to learn more about the EB-2 NIW visa, we have a detailed 3-part series that explains all the intricate details about this process. Click here to get started.

Getting Started

The U.S. immigration process can look overwhelming. From deciphering eligibility criteria to building airtight applications, it’s easy to feel lost. But here’s the truth: with a bit of proactive planning and the right strategy, you can absolutely take control of your journey. Whether you're considering the O‑1, EB‑2, or NIW route, the key is understanding how your accomplishments fit into the bigger picture. And building a petition that tells your story clearly, confidently, and with the right supporting evidence.

At Casium, we have helped talented researchers, engineers, and startup founders craft compelling petitions and submit strong visa applications, sometimes in just a matter of weeks. Our AI-supported tools, combined with a team of immigration experts, make it easier to navigate this complex system without losing time, sleep, or sanity.

We’ll help you assess your strengths, figure out your best visa path, and create a plan that works for your career goals. No pressure, no guesswork, just clear guidance. Book a free profile evaluation with us, today!

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Sources:

• O-1 visa – Individuals with Extraordinary Ability or Achievement
• USCIS Policy Manual (STEM guidance), No annual cap and unlimited extensions for O-1A; 
• Nonimmigrant Pathways for STEM Employment in the United States
• Immigrant Pathways for STEM Employment in the United States
• Employment-Based Immigration: Second Preference EB-2
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