Post Doctoral Research Fellow in CMB Science with Simon’s Observatory(UK Sponsorship)

Job Description

About the Opportunity

The University of Sussex is inviting applications for a Postdoctoral Research Fellow in Cosmic Microwave Background (CMB) science to contribute to research connected with the Simons Observatory.

This position offers the chance to work on cutting-edge cosmology research, focusing particularly on CMB data analysis and theoretical modelling. The successful candidate will collaborate with a small research team led by Antony Lewis, while also engaging with the wider international Simons Observatory collaboration.

Alongside collaborative research activities, the fellow will have the freedom to pursue independent research ideas within the broader field of cosmology.

UK research funding and national research strategy 

Research Focus

The successful applicant will work on theoretical and data-driven aspects of the Simons Observatory programme. Key research areas may include:

• Cosmic Microwave Background (CMB) lensing
• Power spectrum analysis and cosmological parameter estimation
• Likelihood modelling for cosmological data
• Development of numerical and statistical tools for analysing observational datasets
• Collaborative research within the international Simons Observatory team
• The role offers the opportunity to contribute to major cosmological discoveries and precision measurements of the early universe.
• More information on the UK’s national science and innovation framework

Candidate Profile

Applicants should have a strong academic background and demonstrated research capability in cosmology or related fields.

You will ideally have:

• A PhD in cosmology, astrophysics, physics, or a closely related discipline
• Strong expertise in CMB data analysis and numerical modelling
• Experience in one or more areas such as CMB lensing, likelihood analysis, or cosmological parameter estimation
• Programming and numerical analysis skills relevant to scientific computing
• Experience working with large cosmological datasets or collaborative experiments
• Previous involvement with Simons Observatory or comparable cosmology experiments would be advantageous.
• Guidance on research careers and working in UK academia

About the School

The School of Mathematical and Physical Sciences at the University of Sussex is recognised for its strong research culture and commitment to academic excellence.

The school strives to:

• Produce internationally recognised research
• Deliver high-quality undergraduate and postgraduate education
• Maintain strong collaborations with global research institutions
• Create an open and supportive environment for researchers and students
• The School also holds a Bronze Athena Swan Award, reflecting its commitment to promoting equality and diversity in STEM disciplines.
• Equality and diversity legislation in the UK workplace

Working Environment

The university’s campus is located in Brighton near the South Downs National Park, offering a unique environment that combines natural surroundings with a vibrant academic community.

Campus features include:

• Excellent public transport connections, including nearby Falmer railway station
• Cycle-friendly infrastructure and sustainable travel initiatives
• A collaborative research environment with modern facilities
• Access to wellbeing services and professional development opportunities
• Employees can also benefit from sustainable travel initiatives such as the Cycle to Work scheme.
• Government guidance on workplace wellbeing and employee rights

Application Requirements

Candidates should include the following when applying:

• A complete list of publications
• A research statement outlining interests, experience, and future research plans
• Evidence of relevant research expertise and collaboration experience

Equality, Diversity and Inclusion

The University of Sussex is committed to fostering an inclusive academic environment and encourages applications from individuals of all backgrounds.

The university particularly welcomes applications from women and individuals from Black and minority ethnic backgrounds, who are currently under-represented in STEM academic roles.

Visa Sponsorship

This role may be eligible for UK Skilled Worker visa sponsorship, provided the candidate meets the salary and eligibility requirements.

Key Dates

• Application Deadline: 21 April 2026
• Interview Format: Online via Zoom
• Expected Start Date: 1 October 2026 (or earlier by agreement)
• Contract End Date: 30 June 2029