IRSC: [International Research Software Conference](https://www.researchsoft.org/irsc/), [Call for proposals](https://www.researchsoft.org/irsc/proposals/) RSECon: UK [Research Software Engineering Conference](https://rsecon26.society-rse.org), [Call for submissions](https://rsecon26.society-rse.org/calls/submissions/) Both close 1 May.
IRSC: International Research Software Conference, Call for proposals
RSECon: UK Research Software Engineering Conference, Call for submissions
Both close 1 May.