index.js

render(){
    // #1. replace the position and education with array from REST API Backendless
    // const {name, position, education, summary, profilePicture, bgPicture} = this.state.data
    const {name, experiences, educations, summary, profilePicture, bgPicture} = this.state.data

    // #2. get the latestExperience from experiences array, we also use error checking (note: we also use ES6 concatination, don't confuse with it)
    const latestExperience = experiences? experiences[0]: null
    const position = latestExperience? `${latestExperience.position} at ${latestExperience.companyName}`: '-'

    // #3. get the latest education from educations array
    const latestEducation = educations? educations[0]: null
    const education = latestEducation? latestEducation.school: '-'

    // ... THE REST OF RENDER METHOD
}