Technical Lead – Korea (AI & Legal Research Platforms) at Thomson Reuters – Korea | Jobyssey

We are seeking a Tech Lead to join the LAWnB Korea team. This role offers a fantastic opportunity to contribute to the cutting edge of AI and legal research technology in Korea. As part of the LAWnB Development Organization, you will support technical leadership in developing next-generation professional solutions leveraging AI technology. You will be responsible for technical strategy formulation, architecture design, and team management for innovative AI-powered systems including RAG systems and Deep Research technologies in the legal and compliance domains. You will collaborate with global technical teams to deliver high-business-value AI solutions.

Your contributions will directly impact our mission to deliver unparalleled value to top law firms and legal departments in Korea and globally. This is your chance to shape the future of legal technology and make a real impact on the industry.

About the Role

In this opportunity as a Technical Lead, you will:

Define and execute the technical and AI strategy for platforms supporting legal research in Korea, aligned with broader product and business goals.
Act as the technical authority for AI system design, architecture, and implementation decisions, including Retrieval-Augmented Generation (RAG), agentic and multi-step reasoning workflows, natural language understanding, summarization, question-answering systems, and LLM-based architectures.
Own architectural direction across backend services, AI pipelines, infrastructure, and data layers.
Lead technical roadmap planning, technology evaluation, and proof-of-concept development.
Provide hands-on leadership through design reviews, architecture reviews, and code reviews.
Help uplevel and build high-performing engineering team in Korea through coaching on design/code quality mentoring, and knowledge-sharing
Establish and continuously improve modern engineering practices and measurable outcomes: trunk-based development, automated testing and CI/CD, code health standards, observability and incident response, DevSecOps practices, and documentation quality; track progress with DORA metrics and retrospectives/kaizen reviews.
Mentor and develop engineers, raising engineering quality, productivity, and technical rigor.
Collaborate closely with Product, Design, AI/ML, and global engineering teams to ensure cohesive delivery, and represent the Korea engineering team in cross-regional technical discussions and initiatives.

About You
You're a fit for the role of Technical Lead if you have the following required qualifications:

Bachelor's degree in Computer Science, AI, Machine Learning, or equivalent practical experience.
5+ years of professional software engineering experience using modern technology stacks, such as Python, .NET, Java, React, TypeScript, cloud platforms (e.g., AWS), relational and vector databases, and version control/CI/CD pipelines.
3+ years of hands-on experience building AI/ML systems, including LLM integration (e.g., GPT, Claude, Gemini), RAG system design, optimization and evaluation, vector search and semantic retrieval, and prompt engineering and LLM orchestration frameworks.
3+ years of experience leading projects or teams in a technical leadership capacity.
Experience designing, deploying, and operating secure, production-grade web systems.
Strong understanding of DevOps practices and CI/CD pipeline design.
Experience working with cross-cultural, bilingual teams in Korea; able to facilitate meetings and produce documentation in both Korean and English, and to align local practices with global standards.
Fluency in Korean and English, both written and spoken.

Additional preferred qualifications include:

Fine-tuning or customizing language models.
Operating AI systems at scale in production environments.
Deep familiarity with security-by-design principles and remediation practices.
Experience formulating and executing long-term technical strategies.
2+ years of people management experience (hiring, performance reviews, compensation input) with a demonstrated track record of upskilling teams and raising engineering quality through modern development practices.

#LI-RZ1

What’s in it For You?

Hybrid Work Model: We’ve adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected.
Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.
Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow’s challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.
Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.
Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.
Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.
Making a Real-World Impact: We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.

About Us

Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.

As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.

We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law. More information on requesting an accommodation here.

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More information about Thomson Reuters can be found on thomsonreuters.com.

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