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Phd Fellow Jobs (NOW HIRING)

Harvard University

Postdoctoral Fellow

Cambridge, MA · On-site

$54K - $73K/yr

Position Details Title Postdoctoral Fellow School Faculty of Arts and Sciences Department/Area ... Basic Qualifications Candidate must hold a PhD in Biochemistry or Biophysics or related field or ...

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How much do phd fellow jobs pay per year?

As of Aug 10, 2026, the average yearly pay for phd fellow in the United States is $59,022.00, according to ZipRecruiter salary data. Most workers in this role earn between $49,000.00 and $66,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a PhD fellow, and why are they important?

To thrive as a PhD Fellow, you need strong research skills, critical thinking, and a solid academic background relevant to your field, typically demonstrated by a master's degree or equivalent. Familiarity with data analysis software, academic databases, and research methodologies is often required, along with experience in publishing or presenting scholarly work. Excellent time management, perseverance, and effective communication are vital soft skills for collaborating with supervisors and sharing findings. These abilities are crucial for advancing knowledge, meeting academic milestones, and contributing meaningfully to your research community.

What is a PhD fellow?

A PhD Fellow is a graduate student who is pursuing a Doctor of Philosophy (PhD) degree, often supported by a fellowship or scholarship. This position typically involves conducting original research in a specific academic field, taking advanced coursework, and sometimes assisting with teaching or laboratory work. PhD Fellows are expected to contribute new knowledge to their discipline through their dissertation or thesis. The fellowship often provides financial support, enabling the student to focus on their studies and research.

What are some common challenges PhD fellows face in balancing research with other academic responsibilities?

PhD Fellows often juggle multiple responsibilities, including conducting original research, publishing papers, attending conferences, and sometimes teaching or mentoring undergraduate students. Balancing these tasks can be challenging, especially when research projects require long hours or unexpected troubleshooting. Effective time management and clear communication with advisors and peers are essential to maintaining progress and reducing stress. Most institutions provide resources such as writing workshops, counseling services, and peer support groups to help fellows manage these demands successfully.

What is the difference between Phd Fellow vs Research Scientist?

AspectPhd FellowResearch Scientist
Required credentialsPhD or equivalent in relevant fieldMaster's or PhD, often with research experience
Work environmentAcademic or research institutions, universitiesResearch labs, industry R&D departments
Employer and industry usageUniversities, government agencies, research institutesTech companies, pharmaceutical firms, industry R&D
Common search and comparison intentUnderstanding academic research rolesIndustry research careers

In summary, a Phd Fellow typically works in academic or research settings focusing on advanced research projects, often during or immediately after completing a PhD. A Research Scientist usually works in industry or applied research environments, applying scientific methods to develop products or solutions. Both roles require strong research credentials but differ mainly in work environment and application focus.

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Phd Fellow jobs near you
Infographic showing various Phd Fellow job openings in the United States as of August 2026, with employment types broken down into 77% Full Time, 22% Part Time, and 1% Contract. Highlights an 90% Physical, and 10% Remote job distribution, with an average salary of $59,022 per year, or $28.4 per hour.

Postdoctoral Fellow, Hahn Lab - Brain Aging

Calico LLC

South San Francisco, CA • On-site

$95K/yr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Who We Are Calico (Calico Life Sciences LLC) is an Alphabet-founded research and development company whose mission is to harness advanced technologies and model systems to increase our understanding of the biology that controls human aging. Calico will use that knowledge to devise interventions that enable people to lead longer and healthier lives. Calico's highly innovative technology labs, its commitment to curiosity-driven discovery science and, with academic and industry partners, its vibrant drug-development pipeline, together create an inspiring and exciting place to catalyze and enable medical breakthroughs. The Calico Postdoctoral Fellowship Program We are seeking ambitious early career scientists to join us in our mission to increase our understanding of the biology that controls human aging. This is a unique opportunity for individuals to distinguish themselves in aging research, deepen scientific training, and develop research independence. The Postdoctoral Fellowship is a fixed-term educational assignment (three years with a potential fourth year extension) with rolling start dates. Postdoctoral Fellows are fully integrated into Calico's labs and community. The program is designed to train individuals to become independent investigators in an academic or industry setting upon successful completion of the assignment. Fellows will receive regular feedback and guidance from their mentor(s) and participate in a formal annual review process to review project progress and individual performance and provide career coaching. Responsibilities
  • Lead Independent Research: Focus on their own project(s), which should pursue new research directions with dedicated resources for innovative and potentially high-risk/high-reward research
  • Contribute to Calico's Core Mission: Contribute to furthering an understanding of aging and age-related diseases
  • Drive Scientific Progress: Execute experiments meticulously, analyze data (including computational analysis if applicable) and troubleshoot procedures as needed
  • Publish Work: Generate work that is expected to be submitted for publication in a timely fashion upon completion of the assignment
  • Collaborate and Communicate: Actively collaborate across Calico's diverse teams and scientific community, including presenting progress and results to diverse audiences of computational scientists, lab scientists, and engineers
  • Professional Development: Engage with a community of other Postdoctoral Fellows and senior leadership through professional and career development opportunities, such as the annual Postdoc Summit, research-in-progress presentations, senior leader lunch sessions, and skill-building workshops
Position Requirements The successful candidate will demonstrate characteristics valued across Calico's programs, including being a self-motivated team player, detail-oriented, extremely organized, and comfortable working on complex problems.
  • Education: Must have recently completed a PhD degree in a relevant scientific or computational field
    • Current PhD student applicants should be within 12 months of completing their PhD
    • Applicants who have already graduated must have completed their PhD within the past 3 years and not have been employed as a postdoc at more than one other lab/company since graduation
  • Experience: Must have made important contributions to science in their area, ideally demonstrated by having had a meaningful first author paper accepted for publication
  • Technical Versatility (General): While specific technical skills are project-dependent, proficiency in core scientific methodologies, analytical skills, and quantitative problem-solving is essential
  • Communication: Strong teamwork and communication skills are required
  • Adaptability: Must be flexible and able to respond quickly to shifting priorities, demonstrating a "can-do" attitude
  • Onsite Availability: Must be willing to work onsite five days per week
Application Requirements The Postdoctoral Fellowship has four application components:
  • Research proposal (a 1-2 page creative and original research proposal on what you'd like to investigate in the Hahn Lab during your fellowship - note that project goals may evolve during the training period)
  • Updated CV with a full list of publications
  • Cover letter
  • List of 2-3 references that we may contact, including your PhD thesis advisor and any postdoctoral advisors (if applicable)
The estimated base salary for this role is $95,000. More information on our postdoctoral fellowship program can be found here. About the Hahn Lab We investigate why specific cells in the brain, such as the resident immune cells, microglia, are among the earliest and most vulnerable sites of aging, and how this vulnerability contributes to neurodegeneration. Our central mission is to decode and ultimately reprogram the brain's immune system to dampen or reverse age-related neuroinflammation. The group has established a rich arsenal of novel in vitro and in vivo discovery platforms. These include scalable heterochronic myeloid cell replacement paradigms that swap native microglia with CRISPR-ready donor cells across young and old brains, and a new protocol for generating neuroimmune cells in vitro at a very large scale. These novel approaches are complemented by world-class CNS research equipment including custom FACS instruments, bespoke electrophysiology setups and 2 Photon in vivo imaging suites. We welcome proposals that aim to decode altered cell-cell signaling in the CNS through scalable in vitro or ex vivo experimentation. The ideal candidate is a highly motivated innovator with a strong collaborative streak and a drive to take discoveries from cellular models to whole organisms. Publications from the group include:
  • Full Google Scholar
  • Gizowski & Popova et al., Heterochronic myeloid cell replacement reveals the local brain environment as key driver of microglia aging (2025) BioRxiv
  • Hahn et al., Atlas of the aging mouse brain reveals white matter as vulnerable foci (2023) Cell
  • Schaum & Lehallier & Hahn et al., Ageing hallmarks exhibit organ-specific temporal signatures (2020) Nature

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