Job Description
About the Role
The University of Sussex is seeking a Postdoctoral Research Fellow to contribute to cutting-edge cosmology research linked to the Simons Observatory.
This role focuses on advancing our understanding of the cosmic microwave background (CMB) through both theoretical work and data analysis. You’ll collaborate with a local research group led by Antony Lewis, while also engaging with the wider international Simons Observatory collaboration.
Your research will explore areas such as:
- CMB lensing
- Power spectrum estimation
- Likelihood analysis and cosmological parameter inference
- Related topics in observational cosmology
Alongside collaborative work, you’ll have the opportunity to pursue your own independent research ideas within the broader project scope.
What You’ll Be Doing
In this position, you will:
- Analyse complex cosmological datasets from Simons Observatory
- Develop and refine theoretical models related to CMB science
- Contribute to high-impact research outputs and publications
- Work closely with international collaborators
- Explore new directions in cosmology aligned with your research interests
- This role offers a strong balance between teamwork and independent research development.
About You
You are a motivated researcher with a strong background in cosmology and data analysis.
Essential:
- PhD in physics, cosmology, astrophysics, or a closely related field
- Expertise in CMB data analysis or similar areas
- Strong numerical and computational skills
Highly desirable:
- Experience with CMB lensing or large-scale structure analysis
- Previous involvement in major collaborations such as Simons Observatory or similar experiments
- Postdoctoral research experience
- You should also be comfortable working both independently and as part of a collaborative research team.
 About the School
The School of Mathematical and Physical Sciences at Sussex is known for its strong research culture and commitment to academic excellence.
It offers:
- A collaborative and supportive research environment
- High-quality teaching alongside world-class research
- Strong links with national and international research communities
- The School holds a Bronze Athena Swan Award, reflecting its commitment to equality and inclusion.
 Why Join Sussex?
At Sussex, you’ll benefit from:
- A vibrant academic community
- A scenic campus near the South Downs
- Excellent transport links (Falmer station nearby)
- Opportunities to work on internationally recognised research projects
 Key Dates
- Application Deadline: 21 April 2026
- Interviews: Conducted via Zoom
- Start Date: 1 October 2026 (or earlier by agreement)
Application Requirements
Applicants should include:
- A full publication list
- A research statement outlining interests and experience
 Visa & Work Eligibility
This role is eligible for Skilled Worker visa sponsorship, subject to meeting the relevant criteria.
Useful official resources:
- UK Government – Skilled Worker visa overview
- UK Government – Check job eligibility and salary thresholds
- UK Government – Prove your right to work in the UK
- UK Government – ATAS certificate guidance (if applicable)
- UK Government – Explore UK work visa options
 Important:
- Work must be carried out within the UK
- Visa eligibility depends on meeting salary and immigration criteria