Workbear재주넘는곰
대법원 2019다218837

Wages (임금)임금

Decided2022. 01. 13. Court대법원Professors (workers) won; case remanded to lower court
AI-generated English translation (summary, key points, decision summary and full text) for reference only — not an official translation and without legal effect. The Korean original below is authoritative.
AI Easy read — AI summary of this decision
AI-generated summary for reference only — the Korean original below is authoritative.

This case arose when professors at a private university opposed the school foundation's unilateral introduction of an annual salary system (연봉제) and demanded payment of wage differences based on the previous seniority-based pay system (호봉제). The Supreme Court reaffirmed the principle that when employment rules (취업규칙) are unfavorably changed, the previous rules continue to apply to existing employees who had vested interests, and remanded the lower court's decision.

Key takeaways
  • CaseA private university unilaterally changed its existing seniority-based pay system (호봉제) to an annual salary system (연봉제) without professors' consent, leading professors to demand wage differences based on the original seniority system.
  • OutcomeThe Supreme Court ruled in favor of the professors, holding that without employee consent, unfavorable changes to employment rules (취업규칙) do not apply to existing employees, and the previous rules remain in effect.
  • LessonEmployers must obtain genuine consent from employees before making unfavorable changes to employment rules (취업규칙), such as switching wage systems.
Issues
  • Whether the unfavorable change to employment rules (취업규칙) violated the vested interests of existing employees
  • Whether existing faculty members had validly consented to the introduction of the annual salary system (연봉제)
  • Whether the application of the faculty performance evaluation system was appropriate
Key reasoning

When an employer unfavorably changes the employment rules (취업규칙) without obtaining employee consent, the previous employment rules remain effective for existing employees whose vested interests (기득이익) would otherwise be infringed. This principle protects workers who had already accrued rights and expectations under the prior system. In this case, even after the annual salary system was introduced, it was difficult to conclude that the existing faculty members had accepted the new working conditions. Therefore, the seniority-based pay system (호봉제) that applied before the change should continue to govern their wages. The court emphasized that genuine consent from affected employees is required for such unfavorable changes to take effect against them.

Full text (English, AI translation) 17,717 chars

[Plaintiff (Selected Party), Appellant] Plaintiff (Selected Party) (Attorney: Law Firm Haemaru, Attorney in charge Jang Hong-rok)
[Defendant, Appellee] Yeongsin Educational Foundation (Attorney: Law Firm Idam, Attorney in charge Cho Seong-min)
[Judgment Below] Gwangju District Court Decision 2018Na51897 decided February 15, 2019

[Order]

The judgment below is reversed, and the case is remanded to the Gwangju District Court.

[Reasoning] The grounds of appeal (including the supplementary brief on grounds of appeal submitted after the deadline for submission of the grounds of appeal brief, to the extent it supplements the original brief) are examined.

1. Outline of the Case
According to the reasoning of the judgment below and the record, the following facts can be known.

A. The Defendant is a school foundation that establishes and operates ○○ University (renamed “△△ University” around June 2012), among other institutions, under its umbrella.

B. Plaintiff (Selected Party) Plaintiff (Selected Party) was newly appointed as a full-time instructor at ○○ University on March 1, 2002, and was promoted and appointed as an assistant professor in the □□ Department on April 1, 2005. Selected Party Non-party was newly appointed as a full-time instructor at ○○ University on March 1, 1994, reappointed as an assistant professor on April 1, 2000, promoted and appointed as an associate professor on October 1, 2003, and reappointed as an associate professor in the ◇◇ Engineering Department on March 1, 2010 and March 1, 2011.

C. With respect to the salary system for faculty members, the Defendant maintained a seniority-based pay-grade system, under which remuneration consisting of salary according to seniority-based pay grade plus various allowances was paid, until the 1998 academic year. On March 1, 1999, the Defendant enacted annual salary payment regulations providing that remuneration would be paid based on an annual salary reflecting the previous year’s performance of the faculty member, and implemented this system starting from the 2000 academic year.

D. Plaintiff (Selected Party) and Selected Party Non-party filed a lawsuit asserting that the implementation of the above annual salary system was invalid, claiming the difference between the wages calculated based on the salary table according to pay grade for the 2007 and 2008 academic years and the wages under the annual salary system. Regarding this, the court rendered the following judgment (Supreme Court Decision 2010Da17468 decided June 28, 2012; hereinafter “the First Preceding Judgment”).

The Defendant unilaterally introduced the annual salary system as a disadvantageous rule of employment without obtaining the consent of the faculty members concerned, and therefore this is invalid as being contrary to Article 94(1) of the Labor Standards Act (근로기준법). In the case of Plaintiff (Selected Party), since he was newly appointed after the introduction of the annual salary system and consented to the annual salary system and entered into an annual salary contract with the Defendant, the annual salary system applies to him. However, since in the 2007 and 2008 academic years Plaintiff (Selected Party) was unable to obtain opportunities to participate in admissions promotion activities, etc., due to his activities in the Professors’ Council, including filing accusations against the Defendant’s board members for misappropriation, breach of trust, and other wrongful acts, calculating his annual salary according to the 2007 and 2008 academic year performance evaluation standards would be unjust and constitute an abuse of rights; therefore, Plaintiff (Selected Party)’s wages should be set according to the standard salary by pay grade based on the salary amount set in the 2006 academic year. As for Selected Party Non-party, he was reappointed as an assistant professor on April 1, 2000, promoted and appointed as an associate professor on October 1, 2003, and reappointed as an associate professor on March 1, 2010; in light of various circumstances, it is difficult to view that Selected Party Non-party, like a newly appointed faculty member, accepted the working conditions under the changed rules of employment and newly entered into an employment relationship.

E. For the same reasons as above, Plaintiff (Selected Party) and Selected Party Non-party filed two additional lawsuits claiming the difference between wages calculated based on the salary table according to pay grade and wages under the annual salary system for the academic years 2009 through 2013, and the court ruled to the same effect as the First Preceding Judgment, upholding the claims of Plaintiff (Selected Party) and Selected Party Non-party (Supreme Court Order 2015Da51418 dated December 24, 2015, regarding the 2009 and 2010 academic years, and Supreme Court Order 2017Da229383 dated September 7, 2017, regarding the 2011–2013 academic years; hereinafter “the Second and Third Preceding Judgments”).

F. The Defendant imposed a reprimand on Plaintiff (Selected Party) and Selected Party Non-party on May 21, 2014, and a suspension from duty on October 20, 2014; however, a judgment confirming that both disciplinary actions were void, on the ground that the grounds for disciplinary action did not exist, was rendered and became final (Supreme Court Order 2016Da232887 dated October 13, 2016).

G. Plaintiff (Selected Party) and Selected Party Non-party filed the instant lawsuit claiming the difference between wages calculated based on the salary table according to pay grade for the 2014 and 2015 academic years and wages under the annual salary system.

2. Determination on the Grounds of Appeal of Plaintiff (Selected Party)

A. Judgment of the Court Below
The court below determined, for the following reasons, that with respect to the wages for the 2014 and 2015 academic years, it was insufficient to find that Plaintiff (Selected Party)’s faculty performance evaluation score was unfairly assessed as low due to unlawful causes attributable to the Defendant to such a degree that the faculty performance evaluation standards could not be applied to Plaintiff (Selected Party), and thus determined that Plaintiff (Selected Party)’s claim was without merit.

(1) The weight of the admissions promotion item in the faculty performance evaluation standards is not as high as before. In particular, if limited only to the score directly related to Plaintiff (Selected Party)’s individual contribution, excluding the score for the number of new student enrollments among the admissions promotion items, the weight becomes even lower.

(2) The reason Plaintiff (Selected Party) did not receive a score for contribution to admissions promotion under the 2014 academic year faculty performance evaluation standards was that Plaintiff (Selected Party) did not serve as an admissions promotion committee member in the preceding year, the 2013 academic year. It does not appear that Plaintiff (Selected Party) was unable to serve as an admissions promotion committee member during the above period due to causes attributable to the Defendant. Plaintiff (Selected Party) served as an admissions promotion committee member in the 2014 academic year and was accordingly given a score for contribution to admissions promotion under the 2015 academic year faculty performance evaluation standards.

(3) The faculty performance evaluation results reviewed and deliberated by the Faculty Performance Evaluation Committee are individually notified, after which objections are accepted, and the results are finally determined; however, Plaintiff (Selected Party) did not raise an objection to the above scores.

B. Judgment of the Supreme Court
The judgment below cannot be accepted, for the following reasons.

(1) According to the record, the following circumstances can be known.

(A) The annual salary determined under the annual salary system consists of the base salary, which is “the annual amount of basic salary paid reflecting the relevant position, rank, and the individual’s cumulative performance,” and the performance allowance, which is “the annual amount of salary paid reflecting the evaluation results of the previous year’s work performance.” The base salary is determined by the president as of the first day of each fiscal year, taking into account the previous year’s base salary, the current year’s performance allowance, the rate of change in the base salary cap, the policy adjustment rate, and other factors (Article 12(1) of the △△ University Salary Regulations).

(B) The Defendant’s documents relating to the determination of faculty and staff annual salaries for the 2014 academic year state that the base salary of faculty members rated in the lowest evaluation grade for two consecutive years is to be reduced by 10%. In light of this, the base salary reflects an individual’s cumulative performance, and it is difficult to view that such cumulative performance is limited to the previous year’s performance alone. However, since it was finally determined in the First, Second, and Third Preceding Judgments that it was unlawful to calculate Plaintiff (Selected Party)’s salary according to the Defendant’s performance evaluation for the period from the 2007 academic year to the 2013 academic year, it is difficult to calculate Plaintiff (Selected Party)’s proper base salary and performance allowance under the annual salary system implemented by the Defendant for the above period.

(C) In the faculty performance evaluation that serves as the basis for the annual salary for the 2014 and 2015 academic years, department evaluation and attendance evaluation were introduced in addition to individual performance evaluation, and accordingly, the weight of the admissions promotion item, which corresponds to the individual performance evaluation category, within the overall faculty performance evaluation standards decreased compared to before. However, it can be expected that, due to the Defendant’s unjust disciplinary actions against Plaintiff (Selected Party) and the related litigation, Plaintiff (Selected Party) would have been unable to engage in normal teaching activities or school promotion activities even after the 2014 academic year. In light of the course of the dispute, including the criminal accusations and disciplinary actions between the Professors’ Council formed by Plaintiff (Selected Party) and others and the Defendant, and the various lawsuits filed as a result, it is difficult to conclude that there was no cause attributable to the Defendant for Plaintiff (Selected Party)’s failure to serve as an admissions promotion committee member in the 2013 academic year.

(D) Plaintiff (Selected Party) has continuously raised issues, through litigation, regarding the unfairness of the performance evaluations for the academic years 2007 through 2013, and filed an objection to the entire 2014 academic year faculty performance evaluation results.

(2) Given these circumstances, the court below should have sufficiently examined whether the base salary, which is a component item of the annual salary under the annual salary system implemented by the Defendant, reflects the individual’s cumulative performance, and whether Plaintiff (Selected Party)’s faculty performance evaluation score, reflected in the calculation of the performance allowance for the 2014 and 2015 academic years, was proper, and then determined whether the base salary and performance allowance calculated by the Defendant were proper. Nevertheless, the court below dismissed Plaintiff (Selected Party)’s claim regarding the wages for the 2014 and 2015 academic years solely on the ground that it was insufficient to find that Plaintiff (Selected Party)’s faculty performance evaluation score was unfairly assessed as low due to causes attributable to the Defendant. The judgment below erred by failing to conduct the necessary examination as to the composition of the annual salary under the annual salary system implemented by the Defendant, the calculation of such annual salary, and whether the faculty performance evaluation, which serves as the basis for the payment of the performance allowance, was proper, thereby affecting the conclusion of the judgment. The ground of appeal of Plaintiff (Selected Party) pointing this out is well-founded.

3. Determination on the Grounds of Appeal of Selected Party Non-party

A. Relevant Legal Principles
Where an employer disadvantageously changes working conditions prescribed in the rules of employment without obtaining the consent of the employees, the effect of the change does not extend to existing employees whose vested interests are infringed by the change, and the former rules of employment continue to remain effective as to them (see Supreme Court en banc Decision 91Da45165 decided December 22, 1992).

A faculty member of a private university appointed for a fixed term has only the right to demand a fair review based on reasonable standards regarding the expectation of reappointment or whether reappointment will be granted, and if he or she is not reappointed following such review, he or she loses faculty status upon expiration of the term of appointment. However, where there are special circumstances such as a mandatory reappointment clause in the school foundation’s articles of incorporation, personnel regulations, or appointment contract, or where the term of appointment is merely a formality and the appointment contract has been continuously renewed such that a chain-like employment relationship is recognized, faculty status is not lost merely because the term of appointment has expired (see Supreme Court Decision 2013Da47583 decided September 25, 2014, etc.).

B. Judgment of the Court Below
The court below determined, for the following reasons, that the rules of employment concerning the annual salary system applied to Selected Party Non-party, and accordingly dismissed Selected Party Non-party’s claim. Selected Party Non-party entered into a new employment contract with the Defendant on March 1, 2011, and was reappointed after the expiration of his term of appointment. There is no mandatory reappointment clause in the Defendant school’s articles of incorporation or personnel regulations, and it cannot be said that the terms of appointment of faculty members, including Selected Party Non-party, were merely formalities such that a chain-like employment relationship of continuous renewal existed.

C. Judgment of the Supreme Court
This determination of the court below cannot be accepted, for the following reasons.

(1) According to the record, the following circumstances can be known.

(A) The First, Second, and Third Preceding Judgments determined that although Selected Party Non-party was reappointed as an assistant professor on April 1, 2000, and reappointed as an associate professor on March 1, 2010, it was difficult to view that, by virtue of such reappointments, he, like a newly appointed faculty member, accepted the working conditions under the changed rules of employment and newly entered into an employment relationship. The First, Second, and Third Preceding Judgments should be understood as having recognized that each of the above reappointments of Selected Party Non-party fell under special circumstances in which the term of appointment was merely a formality and the appointment contract had been continuously renewed such that a chain-like employment relationship was recognized.

(B) Since the Defendant’s personnel regulations concerning reappointment that applied at the time of Selected Party Non-party’s reappointment on March 1, 2011 did not differ from the regulations that applied at the time of his previous reappointments, it is difficult to evaluate the legal nature of the March 1, 2011 reappointment of Selected Party Non-party differently from the previous reappointments as determined in the First, Second, and Third Preceding Judgments.

(C) Among the cases in which reappointment was denied during the period from 2009 to 2015, the great majority involved contract faculty members in the non-tenure track, with only a small number involving tenure-track faculty members; and it appears that most of the tenure-track faculty members who were resolved to be denied reappointment were either subsequently reappointed or reappointed after receiving a decision revoking the disposition denying reappointment.

(2) In light of the legal principles set forth above, it is difficult to conclude, based solely on the circumstances cited by the court below, that the chain-like employment relationship recognized in the First, Second, and Third Preceding Judgments was severed by Selected Party Non-party’s reappointment as an associate professor on March 1, 2011. Nevertheless, the court below determined that it was difficult to view that an employment relationship with Selected Party Non-party continued to be recognized. The judgment below erred by misunderstanding the legal status of a private university faculty member appointed for a fixed term, and by failing to conduct the necessary examination, thereby affecting the conclusion of the judgment. The ground of appeal of Selected Party Non-party pointing this out is well-founded.

4. Conclusion
Without examining the remaining grounds of appeal, the judgment below is reversed, and the case is remanded to the court below for further examination and determination. This judgment is rendered as set forth in the Order, with the unanimous consent of the Justices.

[Attachment] List of Selected Parties: Omitted

Justice Roh Jeong-hee (Presiding Justice), Kim Jae-hyung (Justice in charge), Ahn Cheol-sang, Lee Heung-gu

【참조조문】

[1] 근로기준법 제94조 제1항

[2] 사립학교법 제53조의2

【참조판례】

[1] 대법원 1992. 12. 22. 선고 91다45165 전원합의체 판결(공1993상, 546) / [2] 대법원 2014. 9. 25. 선고 2013다47583 판결

【주문】·【이유】 전문 6,150자 · 펼쳐 보기

【원고(선정당사자), 상고인】 원고(선정당사자) (소송대리인 법무법인 해마루 담당변호사 장홍록)

【피고, 피상고인】 학교법인 영신학원 (소송대리인 법무법인 이담 담당변호사 조성민)

【원심판결】 광주지법 2019. 2. 15. 선고 2018나51897 판결

【주 문】

원심판결을 파기하고, 사건을 광주지방법원에 환송한다.

【이 유】 상고이유(상고이유서 제출기간이 지난 다음 제출된 상고이유보충서는 이를 보충하는 범위에서)를 판단한다.

1. 사건 개요

원심판결 이유와 기록에 따르면 다음 사실을 알 수 있다.

가. 피고는 그 산하에 ○○대학교(2012. 6.경 ‘△△대학교’로 그 명칭이 변경되었다) 등을 설치·운영하는 학교법인이다.

나. 원고(선정당사자) 원고(선정당사자)는 2002. 3. 1. ○○대학교의 전임강사로 신규 임용되고, 2005. 4. 1. □□학과 조교수로 승진 임용되었다. 선정자 소외인은 1994. 3. 1. ○○대학교의 전임강사로 신규 임용되고, 2000. 4. 1. 조교수로 재임용, 2003. 10. 1. 부교수로 승진 임용, 2010. 3. 1.과 2011. 3. 1. ◇◇공학과 부교수로 재임용되었다.

다. 피고는 교원의 급여체계에 관하여 1998학년도까지는 연공서열의 호봉에 따른 봉급과 각종 수당을 더한 금액을 보수로 지급하는 호봉제를 유지하다가, 1999. 3. 1. 교원의 직전년도 성과를 반영한 연봉에 따라 보수를 지급하기로 하는 연봉제 급여지급규정을 제정하여 2000학년도부터 시행하였다.

라. 원고(선정당사자), 선정자 소외인은 위 연봉제 시행은 무효라고 주장하면서 2007, 2008학년도 호봉에 따른 급여표를 기준으로 산정한 임금과 연봉제에 따른 임금의 차액을 청구하는 소를 제기하였다. 이에 대하여 법원은 다음과 같이 판단하였다(대법원 2012. 6. 28. 선고 2010다17468 판결, 이하 ‘제1차 선행판결’이라 한다).

피고는 소속 교원의 동의를 얻지 않고 일방적으로 불리한 취업규칙으로 연봉제를 도입하였으므로, 이는 근로기준법 제94조 제1항에 반하여 효력이 없다. 원고(선정당사자)의 경우 연봉제를 도입한 후에 신규 임용되면서 연봉제에 동의하고 피고와 연봉계약을 체결하였으므로 연봉제가 적용되지만, 2007, 2008학년도에 원고(선정당사자)가 피고 이사진의 횡령, 배임 등 부당행위에 대한 고발 등 교수협의회 활동으로 입시홍보 등에 참여할 기회를 얻지 못하여 2007, 2008학년도 업적평가기준에 따라 연봉을 산정하는 것은 부당하여 권리남용에 해당하므로, 원고(선정당사자)의 임금은 2006학년도에 책정한 급여액에 따른 호봉별 기준급에 따라 책정되어야 한다. 선정자 소외인은 2000. 4. 1. 조교수로 재임용되었다가, 2003. 10. 1. 부교수로 승진 임용되고, 2010. 3. 1. 부교수로 재임용되었는데, 여러 사정에 비추어 선정자 소외인이 신규 임용된 교원과 같이 변경된 취업규칙에 따른 근로조건을 수용하고 새로이 근로관계를 갖게 되었다고 보기 어렵다.

마. 원고(선정당사자), 선정자 소외인은 위와 같은 이유로 2009학년도부터 2013학년도까지 호봉에 따른 급여표를 기준으로 산정한 임금과 연봉제에 따른 임금의 차액을 청구하는 소를 두 차례에 걸쳐 제기하였고, 법원은 제1차 선행판결과 동일한 취지로 판단하여 원고(선정당사자), 선정자 소외인의 청구를 인용하였다(2009, 2010학년도에 대한 대법원 2015. 12. 24. 자 2015다51418 판결, 2011~2013학년도에 대한 대법원 2017. 9. 7. 자 2017다229383 판결, 이하 ‘제2, 3차 선행판결’이라 한다).

바. 피고는 원고(선정당사자), 선정자 소외인에 대하여 2014. 5. 21. 견책처분과 2014. 10. 20. 정직처분을 하였는데, 징계처분의 사유가 존재하지 않는다는 이유로 위 두 처분이 무효임을 확인하는 판결이 선고·확정되었다(대법원 2016. 10. 13. 자 2016다232887 판결).

사. 원고(선정당사자), 선정자 소외인은 2014, 2015학년도 호봉에 따른 급여표를 기준으로 산정한 임금과 연봉제에 따른 임금의 차액을 청구하는 이 사건 소를 제기하였다.

2. 원고(선정당사자)의 상고이유에 대한 판단

가. 원심판단

원심은 다음과 같은 이유로 2014, 2015학년도 임금에 대해서는 원고(선정당사자)에게 교수업적평가기준을 적용할 수 없을 만큼 피고의 책임 있는 위법한 사유로 원고(선정당사자)의 교수업적평가점수가 부당하게 낮게 매겨졌다고 인정하기에 부족하므로, 원고(선정당사자)의 청구는 이유 없다고 판단하였다.

(1) 입학홍보 항목이 교수업적평가기준에서 차지하는 비중이 이전만큼 높지 않다. 특히 입학홍보 항목 중 신입생등록자수 점수를 제외하고 원고(선정당사자) 개인의 기여도와 직접적으로 관련 있는 점수로만 한정하면 그 비중은 더욱 낮아진다.

(2) 원고(선정당사자)가 2014학년도 교수업적평가기준에서 입학홍보기여도 점수를 받지 못한 것은 전년도인 2013학년도에 원고(선정당사자)가 입학홍보위원으로 활동하지 않았기 때문이다. 위 기간에 피고의 책임 있는 사유로 원고(선정당사자)가 입학홍보위원으로 활동하지 못하였다고 보이지 않는다. 원고(선정당사자)는 2014학년도에는 입학홍보위원으로 활동하여 2015학년도 교수업적평가기준에서 입학홍보기여도 점수를 부여받았다.

(3) 교수업적평가위원회가 검토·심의한 교수업적평가결과는 개별적으로 통보된 뒤 그에 대한 이의신청을 받아 최종적으로 결정되는데, 원고(선정당사자)는 위와 같은 점수에 대하여 이의하지 않았다.

나. 대법원 판단

원심판결은 다음과 같은 이유로 받아들일 수 없다.

(1) 기록에 따르면 다음 사정을 알 수 있다.

(가) 연봉제에 의하여 책정되는 연봉은 ‘해당 직책·직급과 개인의 누적성과를 반영하여 지급되는 기본급여의 연액’인 본봉과 ‘전년도 업무실적의 평가결과를 반영하여 지급되는 급여의 연액’인 성과수당으로 구성된다. 본봉은 매 회계연도 초일을 기준으로 전년도의 본봉, 해당 연도 성과수당, 본봉한계액 변동률과 정책조정률 등을 고려하여 총장이 정한다(△△대학교 급여규정 제12조 제1항).

(나) 피고의 2014학년도 교직원 연봉 책정 관련 문서에는 2년 연속 최하위 평가등급 교원의 본봉을 10% 감액한다고 기재되어 있다. 이에 비추어 보면 본봉에는 개인의 누적성과가 반영되고, 이러한 누적성과는 전년도의 성과에 한정된다고 보기 어렵다. 그런데 제1, 2, 3차 선행판결에서 2007학년도부터 2013학년도까지 원고(선정당사자)에 대하여 피고의 업적평가에 따라 급여를 산정하는 것은 적법하지 못하다는 판단이 확정되었으므로, 위 기간 동안 피고가 시행하는 연봉제에 따른 원고(선정당사자)의 정당한 본봉과 성과수당을 산정하기 어렵다.

(다) 2014, 2015학년도 연봉의 기준이 되는 교수업적평가에서는 개인 업적평가 외에 학과평가, 근태평가를 도입하였고, 이에 따라 개인 업적평가 항목에 해당하는 입학홍보 항목이 교수업적평가기준 전체에서 차지하는 비중은 이전에 비해 줄어들었다. 그러나 피고의 원고(선정당사자)에 대한 부당한 징계처분과 그에 대한 소송 등으로 원고(선정당사자)는 2014학년도 이후에도 정상적인 교수활동이나 학교홍보활동에 종사하지 못하였을 것으로 예상할 수 있다. 원고(선정당사자) 등이 결성한 교수협의회와 피고 사이의 형사고발과 징계, 이에 따른 각종 소제기 등 분쟁 경과에 비추어 볼 때 원고(선정당사자)가 2013학년도에 입학홍보위원으로 활동하지 않은 것에 피고의 책임 있는 사유가 없다고 단정하기 어렵다.

(라) 원고(선정당사자)는 그동안 소송을 통해 2007학년도부터 2013학년도까지 업무평가의 부당성에 대하여 지속적으로 문제를 제기하였고, 2014학년도 교수업적평가결과 전체에 대하여 이의 신청을 하였다.

(2) 사정이 이와 같다면 원심으로서는 피고가 시행하는 연봉제에 따른 연봉의 구성 항목인 본봉에 개인의 누적성과가 반영되는지 여부, 2014, 2015학년도의 성과수당 산정에 반영된 원고(선정당사자)의 교수업적평가점수가 정당한지에 관하여 충분히 심리한 다음 피고가 산정한 본봉과 성과수당의 정당성에 관하여 판단하였어야 한다. 그런데도 원심은 2014, 2015학년도의 임금에 대하여 피고의 책임 있는 사유로 원고(선정당사자)의 교수업적평가점수가 부당하게 낮게 매겨졌다고 인정하기에 부족하다는 이유만으로 원고(선정당사자)의 청구를 기각하였다. 원심판결에는 피고가 시행하는 연봉제에 따른 연봉의 구성과 그러한 연봉의 산정, 성과수당 지급의 근거가 되는 교수업적평가가 정당한지 여부에 대하여 필요한 심리를 다하지 않음으로써 판결에 영향을 미친 잘못이 있다. 이를 지적하는 원고(선정당사자)의 상고이유 주장은 정당하다.

3. 선정자 소외인의 상고이유에 대한 판단

가. 관련 법리

사용자가 취업규칙에서 정한 근로조건을 근로자에게 불리하게 변경하면서 근로자의 동의를 받지 않은 경우에 그 변경으로 기득이익이 침해되는 기존 근로자에 대한 관계에서는 변경의 효력이 미치지 않아 종전 취업규칙의 효력이 그대로 유지된다(대법원 1992. 12. 22. 선고 91다45165 전원합의체 판결 참조).

기간을 정하여 임용된 사립대학 교원은 재임용의 기대나 재임용 여부에 관하여 합리적 기준에 따른 공정한 심사를 요구할 권리가 있을 뿐이고, 그와 같은 심사에 따라 재임용되지 않으면 임용기간 만료로 교원의 신분을 상실한다. 그러나 학교법인의 정관이나 인사규정 또는 임용계약에 재임용 강제조항이 있거나 임용기간은 형식에 지나지 않고 임용계약이 계속 반복 갱신되어 연쇄적 근로관계가 인정되는 등의 특별한 사정이 있는 경우에는 임용기간이 만료되었다는 이유만으로 교원의 신분이 상실되지 않는다(대법원 2014. 9. 25. 선고 2013다47583 판결 등 참조).

나. 원심판단

원심은 다음과 같은 이유로 선정자 소외인에게 연봉제에 관한 취업규칙이 적용된다고 판단하여 선정자 소외인의 청구를 기각하였다. 선정자 소외인은 임용기간이 만료된 후 2011. 3. 1. 피고와 새로운 고용계약을 체결하여 재임용되었다. 피고 학교의 정관이나 인사규정 등에는 재임용 강제조항이 없고, 선정자 소외인을 비롯한 교원의 임용기간이 형식에 지나지 않아 계속 반복 갱신되는 연쇄적 근로관계라고 볼 수도 없다.

다. 대법원 판단

원심의 이러한 판단은 다음과 같은 이유로 받아들일 수 없다.

(1) 기록에 따르면 다음 사정을 알 수 있다.

(가) 제1, 2, 3차 선행판결은, 선정자 소외인이 2000. 4. 1. 조교수로 재임용, 2010. 3. 1. 부교수로 재임용되었으나 위 재임용으로 인해 신규 임용된 교원과 같이 변경된 취업규칙에 따른 근로조건을 수용하고 새로이 근로관계를 갖게 되었다고 보기 어렵다고 판단하였다. 제1, 2, 3차 선행판결은 선정자 소외인의 위 각 재임용은 임용기간이 형식에 지나지 않고 임용계약이 계속 반복 갱신되어 연쇄적 근로관계가 인정되는 등의 특별한 사정이 있는 경우라고 인정한 것으로 보아야 한다.

(나) 선정자 소외인이 2011. 3. 1. 재임용될 당시에 적용되던 재임용에 관한 피고의 교원인사규정이 기존 재임용 당시의 규정과 다르지 않으므로, 선정자 소외인에 대한 2011. 3. 1. 자 재임용의 법적 성격을 제1, 2, 3차 선행판결에서 판단한 기존의 재임용과 달리 평가하기 어렵다.

(다) 2009~2015년 동안 재임용이 거절된 사례는 비정년계열의 계약직 교원이 대다수이고 정년계열 교원은 소수에 불과하며, 재임용 탈락으로 결의된 정년계열 교원 대부분이 다시 재임용되었거나 재임용거부처분 취소결정을 받아 재임용된 것으로 보인다.

(2) 이러한 사정을 위에서 본 법리에 비추어 보면, 원심이 든 사정만으로는 선정자 소외인이 2011. 3. 1. 부교수로 재임용됨으로써 제1, 2, 3차 선행판결에서 인정된 연쇄적 근로관계가 단절되었다고 단정하기 어렵다. 그런데도 원심은 선정자 소외인과 근로관계가 더 이상 인정된다고 보기 어렵다고 판단하였다. 원심판결에는 기간을 정하여 임용된 사립대학 교원의 법적 지위 등을 오해하여 필요한 심리를 다하지 않아 판결에 영향을 미친 잘못이 있다. 이를 지적하는 선정자 소외인의 상고이유 주장은 정당하다.

4. 결론

나머지 상고이유에 관한 판단을 생략한 채 원심판결을 파기하고 사건을 다시 심리·판단하도록 원심법원에 환송하기로 하여, 대법관의 일치된 의견으로 주문과 같이 판결한다.

[별 지] 선정자 명단: 생략

대법관 노정희(재판장) 김재형(주심) 안철상 이흥구

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