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 title: Ralf Jung
 ---
 
-<div style="float:right; margin-left:0.8em; margin-bottom: 0.3em"><img src="me.jpg"></div>
+<div class="float-right-350"><img style="max-width: 350px; width: 100%;" src="me.jpg" srcset="me.jpg, me-2x.jpg 2x"></div>
 
-<p>I am a post-doctoral researcher in the <a href="https://pdos.csail.mit.edu/">PDOS group</a> at <a href="https://www.csail.mit.edu/" target="_blank">MIT CSAIL</a> under the supervision of <a href="https://people.csail.mit.edu/kaashoek/" target="_blank">Frans Kaashoek</a> and <a href="https://people.csail.mit.edu/nickolai/" target="_blank">Nickolai Zeldovich</a>.<br>
-Previously, I completed my <a href="thesis.html">PhD</a> at <a href="https://www.mpi-sws.org/">MPI-SWS</a> and <a href="https://www.uni-saarland.de/" target="_blank">Saarland University</a> in Saarbrücken, Germany; my advisor was <a href="https://people.mpi-sws.org/~dreyer/">Derek Dreyer</a>.</p>
+<p>I am assistant professor at <a href='https://ethz.ch' target="_blank">ETH Zürich</a>, leading the <a href="https://plf.inf.ethz.ch/" target="_blank">Programming Language Foundations Lab</a>.
+We are part of the <a href='https://pls.inf.ethz.ch/' target="_blank">Institute for Programming Languages and Systems</a>.</br>
+Previously, I completed my <a href="thesis.html">PhD</a> at <a href="https://www.mpi-sws.org/">MPI-SWS</a> and <a href="https://www.uni-saarland.de/" target="_blank">Saarland University</a> in Saarbrücken, Germany; my advisor was <a href="https://people.mpi-sws.org/~dreyer/">Derek Dreyer</a>.
+I also did a post-doc in the <a href="https://pdos.csail.mit.edu/">PDOS group</a> at <a href="https://www.csail.mit.edu/" target="_blank">MIT CSAIL</a>.
+</p>
 
-<p><i>I will start my position as assistant professor at ETH Zürich on November 1st.
-If you are interested in doing a PhD or post-doc working on programming language foundations, and in particular formal foundations for Rust, or if you are an ETH student interested in a Master Thesis in that area -- please [reach out](https://research.ralfj.de/contact.html)!</i></p>
+<!-- <p><i>I am offering up to two fully funded PhD positions in my newly founded research group at <a href="https://ethz.ch/en/the-eth-zurich/working-teaching-and-research.html">ETH Zürich</a>, with flexible start date.
+I am looking for strong students that want to do research at the foundations of programming language theory, in program verification and separation logic, with a focus on Rust and Iris.
+Knowledge of Coq is greatly appreciated. Interested candidates can <a href="contact.html">contact me directly</a>.
+Please explain why you are interested in a PhD in this field and what your prior experience is. Also include a CV and possible contacts for recommendation letters.
+Note that doing a PhD at ETH Zürich generally requires a Master's degree, but there is a <a href="https://inf.ethz.ch/doctorate/direct-doctorate-computer-science.html">direct doctorate program</a> that you can enter with a Bachelor's degree (application deadline December 15th).</i></p> -->
 
 <p>My two main lines of work are about <a href="https://www.rust-lang.org/">Rust</a> and <a href="https://iris-project.org/">Iris</a>.<br>
-On the Rust side, I am working (also in collaboration with the Rust language team) towards a solid formal foundation for the language, including in particular the unsafe parts.
-One key result here is our <a href="https://plv.mpi-sws.org/rustbelt/popl18/">type safety proof</a>, which also describes a methodology for establishing type safety of well-encapsulated unsafe code.
-My goal is to make unsafe Rust just as safe as safe Rust by means of formal verification.<br>
-On the Iris side, besides continuing development of its logical foundations, I am interested in applying Iris to new problem domains; recently I started working on modular verification of fault-tolerant distributed system components.<br>
-For some more information, check out my <a href="https://www.ralfj.de/blog/categories/research.html">research blog</a>, my <a href="cv.pdf">CV</a>, and my <a href="research-statement.pdf">research statement</a>.</p>
+On the Rust side, me and my group are working (also in collaboration with the Rust language team) towards a solid formal foundation for the language, including in particular the unsafe parts.
+As part of this we are developing <a href="https://github.com/rust-lang/miri/">Miri</a>, a practical tool for detecting Undefined Behavior bugs in unsafe Rust code, which has become a part of the standard toolbox of unsafe code authors.
+Meanwhile, <a href="https://github.com/minirust/minirust">MiniRust</a> is our work-in-progress proposal for a precise specification of unsafe Rust, that I hope to integrate into an official Rust specification eventually.
+My long-term goal is to make unsafe Rust just as safe as safe Rust by means of formal verification based on rigorous foundations for all key components of the language.<br>
+On the Iris side, I am continuing development of its logical foundations.
+We are making Iris fit for specifying and verifying programming languages at scale using a more modular approach.
+The long-term goal is for Iris to be able to handle the full scale of complexities that arise when doing foundational verification of real languages.<br>
+For some more information, check out my <a href="https://www.ralfj.de/blog/categories/research.html">research blog</a> and my <a href="cv.pdf">CV</a>.</p>
 
 <p>In my free time, I like to run internet services myself and work on free software.
 This goes hand-in-hand with my pursuit of defending our privacy rights and our freedom in the digital world.