How to Apply to SK Bioscience Corp

10 min read Last updated April 20, 2026 5 open positions
Blake Crosley
Blake Crosley Researched using publicly available information, hiring data, and ATS analysis.

Key Takeaways

  • SK Bioscience hires through the SK Group unified SK Careers portal at skcareers.com — a custom in-house ATS, not Workday or any global system — with a single login that spans every SK affiliate.
  • Expect a Korean-first process: the 자기소개서 essay set, the SKCT aptitude test, and most interview rounds are conducted in Korean even for roles that work with global partners in English.
  • The company is in a post-COVID transition — the SKYCovione vaccine failed to gain commercial traction despite WHO PQ, and growth is now anchored on the Pfizer 21-valent PCV technology transfer, mRNA platform build-out, and a CDMO services pivot.
  • Headcount posture has tightened since 2023 alongside weak earnings; selective gong-chae cycles and targeted experienced-hire reqs are the norm rather than open expansion, so timing matters.
  • Manufacturing roles are based at the Andong Anguel L plant in Gyeongsangbuk-do and require relocation; R&D is based at Songdo (Incheon) and HQ functions in Seongnam.
  • SKMS (SK Management System) values — VWBE and SUPEX — are an actual interview rubric, not boilerplate; structure your behavioral stories around them.
  • The talent comparison set is Samsung Biologics, Celltrion, GC Biopharma, and global CDMOs; honest framing of why SK Bioscience over these peers is expected in the executive interview.

About SK Bioscience Corp

SK Bioscience (SK바이오사이언스, KOSPI:302440) is the vaccines and biologics arm of SK Group, headquartered in Seongnam, Gyeonggi Province with R&D anchored at the Songdo International Business District in Incheon and biomanufacturing concentrated at the Anguel L plant in Andong, North Gyeongsang. The company spun off from SK Chemicals in July 2018 as a dedicated vaccine specialist and went public on the KOSPI in March 2021 at an offering price of ₩69,000 per share. The IPO was one of the most heavily oversubscribed in Korean history, with shares peaking near ₩190,000 during the COVID windfall before settling into the ₩50,000-70,000 range across 2024 and 2026 as pandemic-era contract manufacturing tailwinds reversed. Investors and candidates evaluating the company in 2026 should size it as roughly 1,000 employees and a mid-cap KOSPI biologics name still controlled by the Chey family through SK Discovery and the broader SK chaebol structure. The commercial portfolio combines proprietary vaccines, in-licensed products, and contract development and manufacturing (CDMO) for global partners. Skycellflu (cell-based seasonal influenza), Skyzoster (varicella-zoster), and Skyrabies (rabies) anchor the Korean franchise. SKYCovione, SK Bioscience's own COVID-19 vaccine developed with the University of Washington's Institute for Protein Design and backed by CEPI and the Bill & Melinda Gates Foundation, achieved WHO prequalification but failed to gain meaningful commercial traction in a saturated post-pandemic market. The company has pivoted hard toward a Pfizer technology-transfer partnership for a 21-valent pneumococcal conjugate vaccine (PCV) intended for Korean and emerging-market production, plus an expansion into cell and gene therapy CDMO services. The Andong Anguel L facility supports both protein-subunit and mRNA manufacturing modalities, while Songdo houses formulation R&D, analytical development, and regulatory affairs. Culturally, SK Bioscience sits inside the SK Group operating model — long-term capital allocation, the SKMS (SK Management System) values framework, and a strong organized labor presence including KCTU- and FKTU-affiliated unions. Korean is the working language at HQ and Andong, while English is mandatory for global health partnerships with CEPI, Gavi, the Gates Foundation, the WHO, and EMA/FDA regulatory submissions. The science bar is high: roles in upstream and downstream bioprocess, protein engineering, mRNA chemistry, formulation, and quality assurance compete with Samsung Biologics, Celltrion, GC Biopharma, and global CDMOs for the same talent pool. Candidates should expect a hiring posture that has tightened materially since 2023 alongside weak earnings, with selective 신입 (new graduate) gong-chae cycles and targeted 경력 (experienced hire) reqs rather than open headcount expansion.

Application Process

  1. 1
    Identify the role on the SK Careers unified portal at skcareers

    Identify the role on the SK Careers unified portal at skcareers.com/Recruit and filter by 'SK바이오사이언스' as the hiring company; postings link out to detail pages at skcareers.com/Recruit/Detail/{id} and require a single SK Careers account that is reused across every SK Group affiliate.

  2. 2
    Decide which track applies to you: the 신입 gong-chae (new-graduate open recruitme

    Decide which track applies to you: the 신입 gong-chae (new-graduate open recruitment) typically runs once or twice per year on a published cycle, while 경력 (experienced) reqs are posted on a rolling basis as specific teams open headcount; the document burden, the HMAT requirement, and the interview structure differ between the two.

  3. 3
    Prepare the 자기소개서 (jagi-sogaeseo) essay set in Korean

    Prepare the 자기소개서 (jagi-sogaeseo) essay set in Korean — usually four to five prompts of 700 to 1,000 characters each covering motivation for SK Bioscience specifically, technical project depth, a failure-and-recovery story, and SKMS-aligned values; recycled essays from other SK affiliates read as low-effort and are filtered out at the document screen.

  4. 4
    Submit your CV, transcripts, and English-proficiency score (TOEIC, OPIc, or TOEI

    Submit your CV, transcripts, and English-proficiency score (TOEIC, OPIc, or TOEIC Speaking) before the cycle deadline; for R&D roles attach a publication list, conference abstracts, and a one-page research summary that maps your bench skills to vaccine, mRNA, protein engineering, or bioprocess work the company actually performs.

  5. 5
    Sit the HMAT (Hyundai-style aptitude test adapted by SK as the SKCT

    Sit the HMAT (Hyundai-style aptitude test adapted by SK as the SKCT — SK Competency Test) covering verbal, numerical, problem-solving, and Korean history; SK weights this heavily in screening and weak SKCT scores will gate you out before any human ever reads your essays.

  6. 6
    Pass the document and SKCT screen, then prepare for a multi-round interview sequ

    Pass the document and SKCT screen, then prepare for a multi-round interview sequence: a technical or PT (presentation) interview where you defend a science topic in Korean, a behavioral or in-depth interview with the hiring team, and an executive interview focused on values fit, English capability for global-partnership roles, and long-term commitment.

  7. 7
    Complete a health check (건강검진) and reference verification after the offer is ext

    Complete a health check (건강검진) and reference verification after the offer is extended; for bioprocess and QC roles based in Andong you should plan for relocation to Gyeongsangbuk-do — the company provides housing support but the commute from Seoul is not realistic.

  8. 8
    Onboard through the SK Group new-hire orientation that introduces the SKMS value

    Onboard through the SK Group new-hire orientation that introduces the SKMS values, Group-wide compliance and ethics training, and your function-specific induction; new hires typically rotate or shadow for several weeks before taking ownership of independent project work.

Resume Tips for SK Bioscience Corp

recommended

Lead with quantified vaccine, mRNA, protein, or bioprocess experience — titer in

Lead with quantified vaccine, mRNA, protein, or bioprocess experience — titer in g/L, cell viability percentages, purification yields, batch sizes, regulatory submissions filed, and platforms operated (single-use bioreactors, AKTA, Biacore, Octet, mass spec, flow cytometry) signal real bench fluency.

recommended

Mirror the Korean job description vocabulary in your 자기소개서 and CV — terms like 공

Mirror the Korean job description vocabulary in your 자기소개서 and CV — terms like 공정개발, 제형, 분석법 개발, GMP, validation, characterization, and stability mapped to the posting language demonstrate that you understand the role rather than pasting a generic biotech resume.

recommended

List English proficiency scores explicitly (TOEIC ≥850, OPIc IH+, or equivalent)

List English proficiency scores explicitly (TOEIC ≥850, OPIc IH+, or equivalent) — global-health partnership and regulatory roles working with CEPI, Gavi, Gates, WHO, and FDA will not advance without documented English capability.

recommended

Highlight any prior contact with regulatory frameworks — KGMP, EU GMP Annex 1, F

Highlight any prior contact with regulatory frameworks — KGMP, EU GMP Annex 1, FDA 21 CFR 210/211, ICH Q7-Q12, WHO PQ — because compliance literacy is differentiating against pure-academic candidates competing for the same R&D and MSAT slots.

recommended

Show project ownership rather than a list of techniques — describe one or two en

Show project ownership rather than a list of techniques — describe one or two end-to-end programs (cell-line development through GMP transfer, or assay development through validation) and the role you played, the obstacles you cleared, and the outcome that shipped.

recommended

Localize for the Korean labor market — list military service status (병역) for mal

Localize for the Korean labor market — list military service status (병역) for male candidates, Korean residency status, and any 정규직 versus 인턴 distinctions clearly, because SK reviewers scan for these signals to assess long-term retention.

recommended

Trim Western resume puffery — superlatives like 'leading,' 'world-class,' and 't

Trim Western resume puffery — superlatives like 'leading,' 'world-class,' and 'transformational' read as low-credibility in Korean corporate screening; substitute concrete artifacts and verifiable metrics every time.

recommended

Tailor the closing motivation paragraph specifically to SK Bioscience's actual p

Tailor the closing motivation paragraph specifically to SK Bioscience's actual portfolio — the Pfizer PCV technology transfer, mRNA platform build-out, CDMO services pivot, or Andong expansion — generic 'I want to contribute to global health' essays are filtered out as boilerplate.

ATS System: SK Careers (skcareers.com)

SK Group operates a unified custom-built recruiting portal at skcareers.com that handles every Group affiliate including SK Bioscience, SK Hynix, SK Innovation, SK Telecom, and SK On. The system is not Workday, Greenhouse, or any global ATS — it is an in-house SK platform with a Korean-first interface (the English toggle is partial) and a single login that follows you across cycles and affiliates. Postings appear at skcareers.com/Recruit and detail pages at skcareers.com/Recruit/Detail/{id}. The portal handles essay submission, document upload, SKCT scheduling, interview logistics, and offer status updates. Outside of formal cycles SK Bioscience sometimes posts senior 경력 reqs on JobKorea, Saramin, and LinkedIn that route back to skcareers.com for the actual application.

  • Create your SK Careers account before the cycle opens — server load on the application deadline night is significant and last-minute account creation has cost candidates their submission window.
  • Save every essay locally as you draft it; the portal's session timeouts and autosave behavior have lost work for applicants and there is no recovery once a deadline passes.
  • Upload PDFs with embedded fonts and selectable text — image-only scans of transcripts or certificates fail the document screen and triggers a request-for-resubmission that can miss the cutoff.
  • Reuse your single SK Careers account across applications but never reuse essay content across SK affiliates — recruiters can see your application history and recycled answers are flagged.
  • Watch the SK Careers Blog (skcareersjournal.com) and the SK Careers Facebook and YouTube channels for cycle announcements; they publish before the main portal banners update.
  • If the portal asks for an English résumé alongside the Korean CV, submit both — the Korean CV is graded by HR and the English version is read by global-partnership stakeholders or expat managers.

Interview Culture

SK Bioscience interviews follow the SK Group multi-stage architecture — typically a PT (presentation) interview, an in-depth technical or behavioral interview with the hiring team, and an executive interview with senior leadership. The PT round asks you to prepare a 10 to 15 minute presentation on a technical topic, a market analysis, or a SK Bioscience-relevant scenario in Korean and defend it under pointed questioning. R&D candidates should expect deep dives into experimental design, statistics, failure modes, and how you would replicate or improve a published method; bioprocess candidates get scaled-up scenario questions on contamination, batch deviation, and CAPA workflow. Behavioral questioning maps to SKMS (SK Management System) values — Voluntary, Willing, Brain Engagement (VWBE) and SUPEX (Super Excellence) — so prepare structured stories with a clear obstacle, your specific actions, the result, and what you learned. Executive interviews probe values fit, willingness to relocate to Andong if the role requires it, English capability for global-partnership roles, and your honest read on why SK Bioscience over Samsung Biologics, Celltrion, GC Biopharma, or a global CDMO. Interviews are predominantly in Korean even for candidates who will work with international partners; a 5 to 10 minute English segment is common for global-facing roles. Dress is conservative business formal. Punctuality and the 인사 (greeting) protocol carry weight. Candidates report that follow-up timelines after the executive interview can stretch two to four weeks, and silence is not necessarily a rejection — but it is reasonable to email the recruiter for a status update at the two-week mark.

What SK Bioscience Corp Looks For

  • Demonstrated wet-lab or bioprocess depth in vaccine-relevant modalities — recombinant protein expression, mRNA chemistry, viral vector production, formulation, analytical method development, or GMP manufacturing operations.
  • Regulatory literacy across at least one major framework (KGMP, EU GMP Annex 1, FDA 21 CFR, ICH Q-series, or WHO PQ) with concrete examples of submissions, audits, or deviation investigations you participated in.
  • Korean professional fluency for HQ and Andong roles, plus business-grade English for any role touching CEPI, Gavi, Gates Foundation, WHO, FDA, EMA, or Pfizer partnership work — bilingual capability is a real differentiator and is tested in interview.
  • Clear long-term commitment signal — SK invests heavily in onboarding and rotates new hires through structured development paths, so candidates who read as flight risks toward Samsung Biologics or US biotech are screened out.
  • Quantitative problem-solving and SKCT aptitude performance — the test is weighted in screening and weak scores end candidacies regardless of CV strength.
  • Cultural alignment with SKMS values, in particular the VWBE and SUPEX framing, expressed through specific past examples rather than rehearsed slogans.
  • Willingness to work onsite at Songdo (Incheon R&D campus) or relocate to Andong (Gyeongsangbuk-do) for manufacturing roles — remote work is not the norm and this expectation is set early in the interview process.
  • Realistic understanding of the company's current commercial position — candidates who can speak credibly about the SKYCovione commercial outcome, the Pfizer PCV technology transfer thesis, and the CDMO pivot signal that they have done their homework rather than reciting marketing language.

Frequently Asked Questions

What ATS does SK Bioscience use to manage applications?
SK Bioscience uses the SK Group unified SK Careers portal at skcareers.com — a custom in-house recruiting platform shared across every SK affiliate, with detail pages at skcareers.com/Recruit/Detail/{id}. It is not Workday, Greenhouse, Lever, or any global ATS. A single SK Careers account works across SK Bioscience, SK Hynix, SK Innovation, SK Telecom, and the rest of the Group.
Do I need to be fluent in Korean to apply to SK Bioscience?
Practically yes for HQ, R&D, and Andong manufacturing roles. The application essays, the SKCT test, and most interview rounds are in Korean. English is required on top of Korean for any role touching global health partnerships with CEPI, Gavi, Gates Foundation, WHO, or regulatory submissions to FDA and EMA. A small number of senior global-facing roles can run primarily in English, but those are exceptions and they still expect Korean exposure.
When does SK Bioscience run its 신입 gong-chae new-graduate cycle?
SK Group affiliates typically open gong-chae once or twice per year on a published cycle that varies by year and affiliate. SK Bioscience posts its cycle calendar on skcareers.com and on the SK Careers Blog at skcareersjournal.com. Outside of gong-chae windows, experienced hire (경력) reqs are posted on a rolling basis as specific teams open headcount.
What is the SKCT and how heavily is it weighted?
The SKCT is the SK Competency Test — SK Group's in-house aptitude exam covering verbal, numerical, problem-solving, and Korean history sections. It is weighted heavily in screening and is effectively a gate: weak SKCT scores end candidacies before any human reads your essays. Plan to study with publicly available SKCT prep books (SD에듀 and 해커스 publish current editions) for several weeks before the test date.
Where is SK Bioscience located and will I need to relocate?
Headquarters is in Pangyo, Seongnam (Gyeonggi Province). R&D is concentrated at the Songdo International Business District in Incheon. Manufacturing is at the Anguel L plant in Andong, North Gyeongsang Province. Bioprocess, QC, and plant-based engineering roles require relocation to Andong — the commute from Seoul is not realistic. The company provides housing support for relocating staff.
What happened to SKYCovione and how should I talk about it in interviews?
SKYCovione is SK Bioscience's proprietary COVID-19 vaccine, developed with the University of Washington's Institute for Protein Design and supported by CEPI and the Gates Foundation. It achieved WHO prequalification but failed to gain meaningful commercial traction in a saturated post-pandemic market. In interviews, do not pretend the program was a commercial success — speak credibly about the scientific platform value (protein nanoparticle technology, global health credibility) and how it positioned the company for follow-on programs and the CDMO services pivot.
Is there a labor union at SK Bioscience?
Yes — SK Group affiliates including SK Bioscience have organized labor representation, with both KCTU (민주노총) and FKTU (한국노총) affiliated unions present in the Group. Union-management dynamics are a normal part of the operating environment, particularly at manufacturing sites. This is standard for large Korean industrial employers.
How does the Pfizer PCV partnership change what kind of candidates SK Bioscience is hiring?
The 21-valent pneumococcal conjugate vaccine technology transfer from Pfizer is one of the largest growth bets the company is making. Hiring around it concentrates on conjugation chemistry, polysaccharide process development, large-scale fermentation and purification, GMP tech transfer, and quality control method validation. Candidates with PCV-relevant or vaccine-conjugation experience, or with prior tech-transfer execution at scale, are especially well-positioned for current openings.
What salary range should I expect at SK Bioscience?
SK Group affiliate salary bands are competitive within the Korean large-cap chaebol tier and are typically tracked alongside Samsung, LG, and Hyundai Motor Group benchmarks. New-graduate base for university bachelor's hires lands in the mid-to-upper range for KOSPI-listed Korean employers; experienced bioprocess and senior R&D bands can scale meaningfully with stock and bonus. Specific numbers vary by function, level, and year, and SK does not publish bands publicly — but the Group is known for total-compensation transparency once an offer is extended.
Does SK Bioscience hire international candidates without Korean work eligibility?
Selectively, yes — primarily for senior R&D, regulatory affairs, business development, and global health partnership roles where the company actively benefits from international background. The default expectation is that candidates either hold Korean work authorization (F-series visa, permanent residency, or Korean citizenship) or qualify for a sponsored E-7 specialty work visa. The application essays and interviews still default to Korean unless the specific role is explicitly designated as English-primary.

Open Positions

SK Bioscience Corp currently has 5 open positions.

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Related Resources

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Sources

  1. SK Careers — Unified SK Group Recruiting Portal —
  2. SK Bioscience Corporate Site (English) —
  3. SK Bioscience Corporate Site (Korean) —
  4. SK Careers Journal — Cycle Announcements and Application Guidance —
  5. WHO Prequalification — SKYCovione (GBP510) —
  6. Pfizer–SK Bioscience 21-Valent Pneumococcal Conjugate Vaccine Partnership Announcement —
  7. CEPI — SK Bioscience Partnership for Pandemic Preparedness —
  8. KOSPI Listing — SK Bioscience (302440) —
  9. SK Bioscience Andong Anguel L Plant Overview —
  10. University of Washington Institute for Protein Design — SKYCovione Collaboration —