Voithru

Revolutionizing Translation

At ​Voithru, ​our ​vision is ​to build an innovative ​translation ​infrastructure that ​spans the global ​market. We ​are ​creating a ​worldwide ​translation ​“platform” where translators ​from ​all around the ​world ​can ​participate.

Even as an ​enormous volume ​of ​media content ​is produced ​and ​consumed at breakneck ​speed across ​the globe, current translation technologies and methods struggle to keep pace. Voithru aims to automate and establish a new translation ecosystem capable of handling all types of content.

Our goal is for every piece of content, whether produced in Korea or abroad, to pass through Voithru’s platform. To achieve this, we are expanding our global business and continually developing new products.

Join Us in Pursuing a Grand Vision

We are seeking exceptional individuals who share our ambition and want to grow with a fast-moving, energetic team.

• We set ambitious goals to create a new translation ecosystem and execute them relentlessly.
• We challenge the status quo by adopting new approaches that transcend traditional methods.
• We take ownership of our work, responding proactively to changing circumstances and shouldering responsibility for solutions.
• We collaborate as one team, communicating with maturity and building trust across all departments.

Tech at Voithru

Our Tech team actively drives product development. Far beyond simply completing assigned tasks, our engineers are primary agents of change, revolutionizing the translation process. From the initial planning phase, we hold regular meetings to discuss and refine tasks together.

Each Tech member has ownership of a specific silo, contributing ideas from the earliest stages to shape our final product. We believe it is our responsibility to “create an environment that fosters better work,” and we strive to make that a reality through direct action. After joining, we focus on maximizing your job satisfaction by supporting your personal growth and offering better opportunities.

[Visit the Voithru Team Blog]

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Prompt Engineer

Primary Responsibilities

• LLM Prompt Optimization & Engineering: Design optimal prompts and improve performance across diverse LLMs (e.g., GPT, Claude, Gemini).
• LLM-Based Service Development & Enhancement: Utilize RAG (Retrieval-Augmented Generation), fine-tuning, and more to develop and optimize AI services.
• New AI Service Ideation & Development: Identify opportunities for services and business ventures leveraging LLMs.
• AI Automation & Service Improvement: Maximize efficiency of automated and AI-driven services by applying LLM technology.

Qualifications

• Eligible to travel overseas (no restrictions).
• Hands-On Experience with LLM & NLP: Practical background in developing and deploying services using LLMs or other NLP techniques.
• Prompt Engineering & LLM Architecture Knowledge: Understanding of conversational LLM model architecture and optimization, with relevant hands-on experience.
• Proficiency in Python & API Integration: Experience using Python and REST APIs to connect with LLMs and build services.

Preferred Qualifications

• ML-Based or Backend Development Experience
• Experience designing, developing, and operating machine learning or LLM-based services
• Experience with AI model serving and backend API design
• LLM Model Optimization & Application
• End-to-end LLM service experience: planning → implementation → performance evaluation → improvement
• Fine-tuning open-source LLMs (e.g., BERT, LLaMA) to meet specific needs
• RAG (Retrieval-Augmented Generation) for building information retrieval and generation systems
• Multi-Modal & Agent-Based AI Experience
• Building agent-based AI services with frameworks like LangChain
• Integrating text, speech, and image data for multi-modal AI models
• Cloud & Operations Experience
• Service development in cloud environments such as AWS

Working Conditions

• Location: 10th Floor, 374 Gangnam-daero, Gangnam-gu, Seoul (K Square Gangnam2, Yeoksam-dong)
• Working Hours: Monday–Friday (5 days/week), with one day per week optional remote work
• Schedule may vary based on project demands; remote work may not be available during the onboarding period
• Standard hours are 10:00–19:00, including a 1-hour break
• Compensation: Negotiable according to internal policies

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Application Process

1. Application Submission (Any Format)
2. Preliminary Test (Coding)
3. Interview
4. Compensation Negotiation (Remote)
5. Onboarding

• All results will be communicated via email within two weeks.
• Interviews are scheduled on a rolling basis for candidates who pass the application review, and there may be multiple interview rounds depending on the role.
• The overall process—application to final offer—typically takes at least two weeks, and start dates are flexible.

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Required Information

• Personal Details: Full name in Korean, date of birth, email address, mobile number
• Education: Institution name, major, graduation status, etc.
• Military Service / Veterans Status / Disability Status
• Extracurricular Activities: Clubs, volunteer work, tutoring, competitions, etc.
• Work Experience: Employment dates, nature of each role, brief reasons for leaving
• Language Proficiency & Overseas Experience
• Explanations for Any Gaps in employment or education
• Resumes, career summaries, and cover letters can be submitted in any format.

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Important Notes

• If any false information is found in your application, your offer may be rescinded even after confirmation.
• For non-Korean nationals, employment conditions may change or offers may be canceled depending on visa type.
• If you wish to have your application documents returned, please refer to our policy on the return of application materials.
• For all recruitment-related inquiries, please contact us at [email protected].