She taught a range of undergraduate and postgraduate courses in European Studies and Literature and Modernity.
Soper is the author of and contributor to over a dozen books on feminism and Continental Philosophy, addressing the works of Jean-Paul Sartre, Karl Marx and Simone de Beauvoir, among others.
She has also translated several texts into English, including includes Chiodi's Sartre And Marxism, Sebastiano Timpanaro's The Freudian Slip, Bobbio's Liberalism and Democracy (with Martin Ryle), and (with Martin Ryle) Ginzburg's Wooden Eyes.
[2] She has been involved in several environmentalist and peace movements in both the United Kingdom and the rest of Europe and her writing addresses radical ecological issues.
[3][4] Her contributions have appeared in the journals Radical Philosophy, New Left Review and Capitalism, Nature, Socialism.