Open Science aims to improve the rigour, robustness, and reproducibility of psychological research. Despite resistance from some academics, the Open Science movement has been championed by some Early Career Researchers (ECRs), who have proposed innovative new tools and methods to promote and employ open research principles. Feminist ECRs have much to contribute to this emerging way of doing research. However, they face unique barriers, which may prohibit their full engagement with the Open Science movement. We, ten feminist ECRs in psychology, from a diverse range of academic and personal backgrounds, explore Open Science through a feminist lens, to consider how voice and power may be negotiated in unique ways for ECRs. Taking a critical and intersectional approach, we discuss how feminist early career research may be complemented or challenged by shifts towards Open Science. We also propose how ECRs can act as grassroots changemakers within the context of academic precarity. We identify ways in which Open Science can benefit from feminist epistemology and end with six practical recommendations for feminist ECRs who wish to engage with Open Science practices in their own research. Have a look at this and this Twitter thread talking all about it!