Labour Party senator Ivana Bacik can keep her lucrative professor position in Trinity College for the duration of the Dáil term if she is successful in the Dublin Bay South by-election.
Ms Bacik is currently taking a career break from her role as an associate professor in the university.
However, she insisted she will only consider giving up the job after the results of tomorrows by-election are known.
The salary for the post ranges from 83,570 to 116,528 a year.
The Seanad Register of Members Interest shows she went on a career break last year, and before that she worked as a lecturer on a reduced hours contract.
A Trinity College spokesperson said: In the public sector and civil service, staff can take up to five years of a career break and we are guided by these rules.
This means Ms Bacik could serve as a TD until the end of the Dáil term and still return to work as a professor.
Fine Gael candidate James Geoghegan said he will not work full-time as a barrister if he is elected as a TD, but will annually renew his membership of the Bar of Ireland.
I will be entirely focused on the full-time role as a TD and serving the people of Dublin Bay South if they elect me, he said.
Green Party candidate Claire Byrne said she will stop working as secretarial assistant for Climate Minister Eamon Ryan and also give up her Dublin City Council seat should she be elected to the Dáil.
Sinn Féin senator Lynn Boylan said she is a full-time public representative and will remain so if elected to the Dáil.
Speaking at a campaign event outside Leinster House, Ms Bacik was asked whether she should give up thecollege position permanently to allow another person in academia to advance their career.
She responded by saying: We are two days out from the election, we will see what the result of the election is.
Ms Bacik said issues around research contracts given to people working in academia came up on quite a number of doors while she was canvassing. Asked if she believed it is fair that she has a safety net for her political career that is stopping someone else from getting a job, she said: There is policy, State policy on that.
Asked what the State policy is, Ms Bacik said: It is set in statute and so on.
When asked to expand on this, she said: You know as I say, Im on career break, I taught part-time.
At that point, Labours director of elections, Duncan Smyth, interjected to say a whole lot of work needs to be done on getting people to consider careers in politics.
If you look at the work that councillors have to do and sacrifices they have to make, we need to have a conversation at some point about how we can get people into politics, he said.
He insisted Ms Bacik would not be double-jobbing.
For anyone to get involved in politics at any level, a local area rep, a councillor, a senator or a TD, it is usually risky and that is something they take on themselves, he said.
I would rather live in a society and economy where if people want to make that leap at whatever that there would be protections.
Ms Bacik is currently earning 69,474 a year plus expenses as a senator, and this will increase to 98,113 should she be elected to the Dáil.
Separately, the senator refused to answer questions on how many times she previously ran for the Dáil and would only say she is running in her home constituency for the first time whenasked.
She ran unsuccessfully for the Dáil on two other occasions.
Ms Bacik said she was unaware that she would feature in RTÉs National Treasures programme on Sunday evening.
She said filming for the programme took place in 2018.