Hello, my name is Dave Pearah, and I’m the CEO of the HDF Group, creators and maintainers of open source HDF5 (www.hdfgroup.org) for over 30 years.
My reason for reaching out: we’re looking for a part-time collaborator for a software project that relies on Clang / LLVM. This builds on the great work already started by another member of the HDF community:
Modern C++ interface for HDF5: extending to support HPC and parallel I/O
http://h5cpp.ca/
We’re looking for a collaborator who brings experience with both LLVM and Clang, and is interested and available to work on this project on a part-time basis. Schedule and level of commitment would be very flexible, i.e. no need to quit day-job 
The only requirement is that this work is performed in the United States (note: required by the project funding source, not us).
If you’re interested in learning more, please feel free to reach out to me (david.pearah@hdfgroup.org) and my colleague Gerd Heber (gheber@hdfgroup.org) directly. Thanks for your consideration!
– dave