FieldArrayを用いて書き直す場合、どうやって書けばいいのでしょうか?

import React, { Component } from 'react';
import { Formik, Form, Field, FieldArray } from 'formik';
import classNames from 'classnames';
import * as Yup from 'yup';

class FormStep1 extends Component {
  render() {
    const requiredMes = '入力必須項目です';
    const nameMaxLength = '16文字以内で入力して下さい';
    const birthdayMaxLength = '10文字以内で入力して下さい (例: 1994/09/26)';
    const typeOfErorr = '入力形式が正しくありません';
    const checkboxValues = {'1':'a', '2':'b', '3':'c',}
    const checkboxField = Object.keys(checkboxValues).map((value, index) => {
      return (
        <div className="checkbox" key={value}>
          <div className="l-bottom-xxs">
            <label
              className="checkbox-inline radio-inline text-size-14"
              htmlFor={value}
            >
              <Field
                name="checkbox"
                type="checkbox"
                value={value}
                id={value}
              />
              {index}
            </label>
          </div>
        </div>
      );
    });

    return (
      <div className="l-signup-container w-md">
        <div className="l-signup-header"></div>
        <div className="l-signup-content">
          <div className="l-signup-form">
            <Formik
              initialValues={{
                firstName: '',
                lastName: '',
                firstNameRuby: '',
                lastNameRuby: '',
                birthday: '',
                radioGroup: '',
                prefecture: '',
                prefectureCity: '',
                occupation: '',
                workstyle: '',
                hourlyWage: '',
                company: '',
              }}
              validationSchema={Yup.object().shape({
                firstName: Yup.string()
                  .max(16, nameMaxLength)
                  .required(requiredMes),
                lastName: Yup.string()
                  .max(16, nameMaxLength)
                  .required(requiredMes),
                firstNameRuby: Yup.string().required(requiredMes),
                lastNameRuby: Yup.string().required(requiredMes),
                birthday: Yup.string()
                  .max(10, birthdayMaxLength)
                  .required(requiredMes)
                  .matches(/[0-9/]/, { message: typeOfErorr }),
                radioGroup: Yup.string().required(requiredMes),
                prefecture: Yup.string().required(requiredMes),
                prefectureCity: Yup.string().required(requiredMes),
                occupation: Yup.string().required(requiredMes),
                occupationSub: Yup.string().required(requiredMes),
                workstyle: Yup.string().required(requiredMes),
                hourlyWage: Yup.number().required(requiredMes),
                company: Yup.string(),
              })}
            >
              {({ values, errors, touched }) => (
                <Form>
                  <div className="l-bottom-s">
                    <label htmlFor="last-name" className="heading-form-label">
                      お名前<span className="label-required">必須</span>
                    </label>
                    <div className="l-form-horizontal l-bottom-s">
                      <div className="l-form-half">
                        <div className="input-line">
                          <Field
                            type="text"
                            name="lastName"
                            className="full"
                            id="last-name"
                            placeholder="姓"
                          />
                        </div>
                        {errors.lastName && touched.lastName ? (
                          <div className="label-required">
                            {errors.lastName}
                          </div>
                        ) : null}
                      </div>
                      <div className="l-form-half">
                        <div className="input-line">
                          <Field
                            type="text"
                            name="firstName"
                            className="full"
                            id="first-name"
                            placeholder="名"
                          />
                        </div>
                        {errors.firstName && touched.firstName ? (
                          <div className="label-required">
                            {errors.firstName}
                          </div>
                        ) : null}
                      </div>
                    </div>
                  </div>
                  <div className="l-bottom-s">
                    <label
                      htmlFor="phonetic-last-name"
                      className="heading-form-label"
                    >
                      ふりがな<span className="label-required">必須</span>
                    </label>
                    <div className="l-form-horizontal l-bottom-s">
                      <div className="l-form-half">
                        <div className="input-line">
                          <Field
                            type="text"
                            name="lastNameRuby"
                            className="full"
                            placeholder="せい"
                          />
                        </div>
                        {errors.lastNameRuby && touched.lastNameRuby ? (
                          <div className="label-required">
                            {errors.lastNameRuby}
                          </div>
                        ) : null}
                      </div>
                      <div className="l-form-half">
                        <div className="input-line">
                          <Field
                            type="text"
                            name="firstNameRuby"
                            className="full"
                            placeholder="めい"
                          />
                        </div>
                        {errors.firstNameRuby && touched.firstNameRuby ? (
                          <div className="label-required">
                            {errors.firstNameRuby}
                          </div>
                        ) : null}
                      </div>
                    </div>
                  </div>
                  <div className="l-bottom-s">
                    <label
                      htmlFor="birthday-input"
                      className="heading-form-label"
                    >
                      生年月日<span className="label-required">必須</span>
                    </label>
                    <div className="input-line">
                      <Field
                        type="tel"
                        name="birthday"
                        id="birthday-input"
                        placeholder="1994/09/26"
                        pattern="[0-9/]{10}"
                      />
                    </div>
                    {errors.birthday && touched.birthday ? (
                      <div className="label-required">{errors.birthday}</div>
                    ) : null}
                  </div>
                  <div className="l-bottom-s">
                    <fieldset>
                      <label
                        className="heading-form-label"
                        htmlFor="radioGroup"
                      >
                        性別
                        <span className="label-required">必須</span>
                      </label>
                      <div className="l-form-horizontal">
                        <label
                          className="checkbox-inline radio-inline text-size-14"
                          htmlFor="male"
                        >
                          <Field
                            name="radioGroup"
                            id="male"
                            type="radio"
                            value="male"
                            className={classNames('radio-button')}
                          />
                          男性
                        </label>
                        <label
                          className="checkbox-inline radio-inline text-size-14"
                          htmlFor="female"
                        >
                          <Field
                            name="radioGroup"
                            id="female"
                            type="radio"
                            value="female"
                            className={classNames('radio-button')}
                          />
                          女性
                        </label>
                      </div>
                    </fieldset>
                    {errors.radioGroup && touched.radioGroup ? (
                      <div className="label-required">{errors.radioGroup}</div>
                    ) : null}
                  </div>
                  <div className="l-bottom-l">
                    <label
                      htmlFor="profile-prefecture-id"
                      className="heading-form-label"
                    >
                      活動エリア
                      <span className="label-required">必須</span>
                    </label>
                    <div className="l-form-horizontal l-bottom-l location-select-input">
                      <div className="l-form-half">
                        <div className="select-line">
                          <Field
                            className="full js-prefLoad_parent"
                            name="prefecture"
                            component="select"
                            placeholder="選択してください"
                          >
                            <option value="選択してください">
                              選択してください
                            </option>
                            <option value="テスト1">テスト1</option>
                            <option value="テスト2">テスト2</option>
                            <option value="テスト3">テスト3</option>
                          </Field>
                        </div>
                        {errors.prefecture && touched.prefecture ? (
                          <div className="label-required">
                            {errors.prefecture}
                          </div>
                        ) : null}
                      </div>
                      <div className="l-form-half">
                        <div className="select-line">
                          <Field
                            className="full js-prefLoad_child"
                            name="prefectureCity"
                            component="select"
                            placeholder="選択してください"
                          >
                            <option value="選択してください">
                              選択してください
                            </option>
                            <option value="テスト1">テスト1</option>
                            <option value="テスト2">テスト2</option>
                            <option value="テスト3">テスト3</option>
                          </Field>
                        </div>
                        {errors.prefectureCity && touched.prefectureCity ? (
                          <div className="label-required">
                            {errors.prefectureCity}
                          </div>
                        ) : null}
                      </div>
                    </div>
                  </div>
                  <div className="l-bottom-l">
                    <label
                      htmlFor="profile-occupation-id"
                      className="heading-form-label"
                    >
                      職種<span className="label-required">必須</span>
                    </label>
                    <div className="l-form-term select-line">
                      <Field
                        className="full js-prefLoad_child"
                        name="occupation"
                        component="select"
                        placeholder="選択してください"
                        id="profile-occupation-id"
                      >
                        <option value="選択してください">
                          選択してください
                        </option>
                        <option value="テスト1">テスト1</option>
                        <option value="テスト2">テスト2</option>
                        <option value="テスト3">テスト3</option>
                      </Field>
                    </div>
                    {errors.occupation && touched.occupation ? (
                      <div className="label-required">{errors.occupation}</div>
                    ) : null}
                  </div>
                  <div className="l-bottom-l sub_job_category">
                    <label
                      htmlFor="profile-sub-occupations"
                      className="heading-form-label"
                    >
                      その他に経験した職種
                    </label>
                    <div className="l-bottom-l sub_job_category">
                        {checkboxField}
                    </div>
                  </div>
                  <div className="l-bottom-l">
                    <label
                      htmlFor="profile-workstyle-id"
                      className="heading-form-label"
                    >
                      働き方<span className="label-required">必須</span>
                    </label>
                    <div className="l-form-term select-line">
                      <Field
                        name="workstyle"
                        component="select"
                        placeholder="選択してください"
                        id="profile-workstyle-id"
                      >
                        <option value="選択してください">
                          選択してください
                        </option>
                        <option value="テスト1">テスト1</option>
                        <option value="テスト2">テスト2</option>
                        <option value="テスト3">テスト3</option>
                      </Field>
                    </div>
                    {errors.workstyle && touched.workstyle ? (
                      <div className="label-required">{errors.workstyle}</div>
                    ) : null}
                  </div>
                  <div className="l-bottom-l">
                    <label
                      htmlFor="profile-hourly-wage"
                      className="heading-form-label"
                    >
                      時給<span className="label-required">必須</span>
                    </label>
                    <div className="input-line">
                      <Field
                        type="number"
                        name="hourlyWage"
                        className="full"
                        placeholder="2,000"
                      />
                      <span className="input-right-text">円</span>
                    </div>
                    {errors.hourlyWage && touched.hourlyWage ? (
                      <div className="label-required">{errors.hourlyWage}</div>
                    ) : null}
                    <p className="wage-average js-wage-averageValue"></p>
                  </div>
                   
                  <div className="l-bottom-l">
                    <label className="heading-form-label">所属企業名</label>
                    <div className="input-line company-input">
                      <Field
                        type="text"
                        name="company"
                        className="full"
                        placeholder="株式会社GIG"
                      />
                    </div>
                    {errors.company && touched.company ? (
                      <div className="label-required">{errors.company}</div>
                    ) : null}
                  </div>
                  <div>
                    <button
                      className="btn btn-primary"
                      type="submit"
                      // disabled={
                      //   Object.keys(errors).length > 0 ||
                      //   Object.keys(touched).length === 0
                      // }
                    >
                      STEP2 プロフィールを入力する
                    </button>
                  </div>
                </Form>
              )}
            </Formik>
          </div>
        </div>
      </div>
    );
  }
}

export default FormStep1;