Alumni career stories
Read stories from our CCRC alumni and the career paths that studying with us can take you.
Dr Himadri Saini (PhD 2022)
Postdoctoral Research Fellow at the University of Melbourne
My time at the Climate Change Research Centre (CCRC) from 2018 to 2022 was an incredibly rewarding experience that I still cherish. During my PhD, I became a paleoclimate modeller and a paleoceanographer, while simulating past climates spanning 20,000–70,000 years ago, using an Earth system climate model (ESCM) of intermediate complexity. My research investigated how changes in iron-rich dust supply influenced Southern Ocean marine ecosystems and the global carbon cycle during the last glacial cycle, improving our understanding of the links between climate, ocean biology, and carbon storage. This experience in modelling past climates shaped my research journey, and I continued at CCRC as a postdoctoral researcher until 2025,
where I used the more complex Australian ESM model to investigate climate dynamics and past climate change. The collaborations and experiences I gained at CCRC were instrumental in shaping my research journey.
I am currently a Postdoctoral Research Fellow at the University of Melbourne, as part of the ARC Centre of Excellence for 21st Century Weather. My research focuses on climate variability, with a particular interest in understanding the processes influencing Australian monsoon behaviour.
Dr Nicholas Yeung (PhD 2024)
Scientific Engineer at Weatherzone
I was at the CCRC from 2017 to 2024, where I studied paleoclimatology and completed my Honours and PhD. My research focused on past climate periods such as the Last Deglaciation and the Last Interglacial. Using Earth System Models, I investigated past climate changes and the processes that drove them, with projects spanning Antarctic shelf subsurface warming, vegetation feedbacks, oxygen isotope analysis, and freshwater hosing experiments.
I now work as a Scientific Engineer at DTN (also known as Weatherzone in Australia), where I first joined as an intern while completing my PhD. Since then, I've transitioned from climate research into industry. My role involves developing, deploying, and maintaining weather forecasting systems and datasets for applications including flood forecasting, pollutant dispersion, and wildfire prediction. These systems support operational decision-making for private industry and government agencies, allowing me to apply the modelling, programming, and analytical skills I developed during my research to real-world environmental challenges.
Dr Valentina Ortiz Guzman (PhD 2025)
Atmospheric Dynamicist at ETH Zurich
I joined CCRC in 2021 and completed my PhD in 2025. During my PhD, I investigated planetary-scale asymmetries in the mid-latitude atmosphere and their influence on regional climate variability and high-impact weather across both hemispheres. Along the way, I moved from stationary Rossby waves in the Southern Hemisphere to high-impact extratropical cyclones across the globe. I had the immense luck of doing all of this and of having the freedom to follow where the science took me, under the supervision of the very best, Martin Jucker.
I had a wonderful time at CCRC and made many fond memories that I’ll carry with me for a long time. The training and experience I gained during my PhD took me directly to my current postdoctoral position at ETH Zurich in the Atmospheric Dynamics group. Here, I’ve zoomed in from planetary scales to the inner workings of extratropical cyclones, studying warm conveyor belts and their moisture sources.
Dr Hooman Ayat (PhD 2022)
Observation Scientist, Bureau of Meteorology
I completed my PhD in Climate Science at the Climate Change Research Centre and the ARC Centre of Excellence for Climate Extremes at 91É«Ç鯬 from 2018 to 2022. My PhD focused on understanding the characteristics and changes of extreme storms using weather radar and satellite observations, including storm intensity, size, movement and short-duration rainfall extremes.
After my PhD, I worked as a postdoctoral researcher at the University of Melbourne, where I studied fire weather and the mesoscale and large-scale atmospheric dynamics associated with it. I completed my postdoc in 2024. From 2024 to 2025, I worked in industry as a Python developer at a GIS-focused company, developing applications to process and analyse drone imagery and LiDAR data and extract useful information from those observations.
I am now working as an Observation Scientist at the Bureau of Meteorology, where I am bringing together my experience in climate science, observations, data analysis and software development to help develop and improve operational observation products.