As you spend more time in postgraduate studies, you may start hearing about PhD, and also postdoctorate position. Are they the same? Does postdoc mean PhD too?
Postdocs are almost always PhD holders, with some rare exception in field such as social science. This is because a postdoc position usually is part of a PhD graduates journey into the academic world.
In this post, we explore the differences between a postdoc and a PhD, as well as if you need a PhD to become a postdoc. We also look at steps you can take if you plan to become a postdoc.
What is a Postdoc Position?
A postdoc position is not quite a job, but it’s no longer just being a student. You’ve finished your PhD and survived the thesis defense, so what’s next?
For many PhD graduates aiming to stay in academia, a postdoctoral position is the obvious step. It’s where you:
- sharpen your research skills,
- publish more, and
- build your network.

A postdoc doesn’t involve coursework or a dissertation. You’ll focus on conducting independent research or contributing to a larger research program under the supervision of a principal investigator (PI).
Your postdoctoral research may be tied to the PI’s grant, meaning your freedom to pursue your own ideas depends on the funding.
Postdocs are temporary, usually lasting two to three years, though this varies by field and country. You’ll often juggle:
- publishing results,
- writing grant proposals, and
- mentoring PhD students.
The postdoc salary? It’s modest, even with the workload. But the unspoken rule is this: if you want a tenure-track faculty job, a strong postdoc record is essential.
Must A PostDoctoral Researcher Have a PhD Degree?
Must a postdoctoral researcher have a PhD degree? Almost always, yes.

The very definition of a postdoc assumes you’ve completed your doctoral research and are ready for the next step.
A postdoc position is designed for those who’ve earned a PhD and want to build on that foundation. It’s not something you can step into mid-PhD program or as a master’s graduate.
Some research fields blur the lines, though. In science and engineering, for instance, PhD graduates dominate postdoctoral roles, often conducting advanced research under the supervision of a PI.
But in fields like social science research, there are rare cases where extensive professional experience might substitute for a doctorate.
Don’t count on this; it’s the exception, not the rule.
How Are PhD And PostDoc Different In Academia?
PhD and postdoc life may seem similar, but they are worlds apart in academia. Here are five key differences you’ll notice once you’re in a postdoc position.
Goals and Expectations
As a PhD student, you focus on completing your doctoral project and writing your thesis. Postdoctoral research shifts to producing results that advance your research group’s goals.
You’re also expected to publish in top journals and secure funding.
Supervision vs. Independence
During your PhD, your supervisor guides you closely, shaping your research direction.
In a postdoc, you work under a principal investigator (PI), but the level of independence is much higher. You’re expected to lead projects and mentor PhDs.
Postdoc Salary & Job Security
A PhD program provides a clear timeline—usually three to six years—until you submit your thesis.
A postdoc is temporary, often lasting two or three years.
The postdoc salary is decent, but it’s not the tenure-track stability you may want.
Research Focus
PhD students dive deep into their narrow topic. Postdocs often contribute to multiple projects, expanding their expertise.
You might collaborate across disciplines or even start independent research directions.
Postdoc Funding & Career Pressure
Does postdoc mean PhD stress is over? Not quite. Postdocs face intense pressure to publish, secure funding, and stand out for faculty positions.
It’s the next stepping stone in the academic career path, but the stakes are higher.
Can A PostDoc Help Jumpstart Academic Career?
A postdoc can absolutely jumpstart your academic career, but it’s not a golden ticket.

It’s where you transition from a PhD student to a recognized researcher in academia.
Postdoctoral research is your chance to build a strong publication record. You’ll often work on advanced research projects under the supervision of a principal investigator (PI).
The more papers you publish in high-impact journals, the more you stand out for tenure-track positions.
Postdocs are often a platform for networking. Conferences and collaborations during a postdoc position introduce you to the researchers who might review your grant proposals or hire you for faculty positions.
You also gain essential skills for an academic career. Writing grants, mentoring PhDs, and supervising undergrads become part of your routine.
You’ll also start making strategic decisions about research directions and project management.
Some postdocs are tied to prestigious fellowships, which carry significant weight in job applications. If your research group is highly respected, that boosts your profile too.
How To Get A PostDoc Position?
Getting a postdoc position takes strategy and persistence. It’s not just about having a PhD; it’s about how you showcase your expertise and future potential.
Start early: As a PhD student, talk to your mentor and colleagues about postdoctoral opportunities. Many openings come through word of mouth. Your current network is often your best resource.
Tailor your application to each position: A generic cover letter won’t cut it. Research the principal investigator (PI) and their research group. Show how your skills align with their postdoctoral research goals.
Look for funding options: Some postdoc positions are tied to grants, while others require you to secure a fellowship. Popular programs like the Marie Skłodowska-Curie Actions in Europe or NSF fellowships in the U.S. are competitive but worth it.
Be prepared to cold email PIs: It’s awkward but effective. Mention their research program, your relevant experience, and how you could contribute. Attach your CV and key publications. A concise, personalized email can open doors.
Be flexible: Some fields and countries have more opportunities than others. If you want to stay in academia, a postdoc is often the best stepping stone.
Does PostDoc Mean PhD? Not Necessarily
Does postdoc mean PhD? Not exactly. While both involve deep research, a PhD focuses on training and completing a dissertation under close supervision.
A postdoctoral researcher, on the other hand, builds on that foundation with more independence, tackling advanced projects, publishing extensively, and often mentoring others.
It’s a transitional role—a stepping stone between being a student and becoming an independent academic.
The difference between PhD and postdoc lies in their purpose: one is about learning, and the other is about proving you’re ready to lead.
does postdoc mean phd, does postdoc mean phd,
FAQ
Does postdoc mean PhD?
No, postdoc focuses on independent research, not learning.
Must a postdoctoral researcher have a PhD degree?
Almost always, except in rare social science cases.
How long does a postdoc position usually last?
Postdoc positions typically last two to three years.
What skills do postdocs gain for academic careers?
Grant writing, mentoring, publishing, and project management.
Can a postdoc help jumpstart an academic career?
Yes, through publications, networking, and advanced research.





