I am working on H5CPP an easy to use c++11 header only template library for scientific data stores such as ublas. The library supports ublas::matrix<T>  and  ublas::vector<T> types, in addition to most major libries: eigen3,armadillo,...  with partial or full READ|WRITE operations to/from HDF5 format. 

The MIT licensed project can be freely downloaded from  http://h5cpp.ca or  github: https://github.com/steven-varga/h5cpp

best wishes,

steven