Over time, human life continues to change. Likewise for the context of human work as an activity to fulfill needs. However, in the process of delivering information work is still constrained by the process of delivering information from job providers to job seekers, thus impacting job seekers who have difficulty getting information about job vacancies, as well as the process of registering for jobs in accordance with the wishes of job seekers. From the problems above, we need an update to make it easier for job seekers to find jobs, in this case the search for job vacancies. In this study a search engine was created to make it easier for job seekers to get job information in accordance with the keywords entered by users, using the TF-IDF method. The results of the system testing show that the TF-IDF method is longer in the search process compared to the full query but provides more relevant search results than the full query.

Indonesia is a country located between three tectonic plates, namely Eurasia, the Pacific and Indo-Australia, which is one of the active plates, so that there is the potential for earthquakes, which are sometimes followed by tsunami disasters. The latest accurate, precise, and trusted earthquake information is needed by all parties. For this reason, a system is needed to inform the latest earthquake so that the impact can be minimized. Departing from open data published by BMKG, which is an earthquake in real time, a push notification system for earthquake information was designed to the Android application using Google Firebase. Push notifications are adjusted for specific areas based on user wishes. When the user is in the vicinity of an earthquake-affected or surrounding area, or the location of an earthquake is in a city that is monitored by the user, the notifications that appear can be alerts. Whereas when the user is in a location that is not affected by an earthquake, the notification that appears is only as information that there is an earthquake in a certain area. After analyzing, designing, implementing and testing using the black box testing method, push notification system functionally produces results that are as expected.