By definition most criminal action could involve jail time (excluding civil infractions like parking or speeding tickets). It's up to the prosecutor to determine charges, but it's possible they could bring up something like negligent homicide or reckless endangerment if they feel they can prove it. If convicted they could end up in jail, paying a fine (to the government), probation, community service, losing a license, etc. But a negligent homicide conviction would likely include some jail time. Conviction under criminal law requires a burden of proof beyond a reasonable doubt.IDK does criminal negligence cause jail time?
Separately, as Kevo mentioned, the victims can bring a civil action under tort law. In this case the victims would likely be looking for monetary damages from the engineers/contractors, etc. There is no risk of imprisonment, so the burden of proof is much lower (a preponderance of evidence) so these cases are easier for the plaintiff to win.
On a side note, often people go through both criminal and civil action for a crime. In those cases you'll sometimes see people plead "no contest" to the criminal charge in order to enter a plea bargain without admitting guilt, because if they admit guilt in the criminal case they'll almost automatically also lose civil case as well.
In this particular case I read that the victims already settled with the construction company (which is bankrupt) for $42 million. No word on criminal charges, but Dean Agnostic, this story seems to indicate manslaughter or negligent homicide charges are unlikely: https://www.miamiherald.com/news/local/community/miami-dade/article205607154.html