Established in 1973 with headquarters in Seoul, South Korea, Cheil Worldwide is one of the world’s leading integrated marketing communications networks, with more than 7,200 employees globally in more than 54 offices in 46 countries.
For more information, visit us at: *************
We are inviting candidates for the position of:
Full Stack Developer
We are looking for a hands-on Full Stack Developer who can build applications from scratch and take them through to production. You will work across frontend and backend development, AWS infrastructure, CI/CD, and DevOps, while developing AI-powered features and automated workflows.
The ideal candidate combines strong software engineering fundamentals with practical experience using AI-assisted development tools and integrating large language models (LLMs) into business applications.
Key Responsibilities
Design, develop, and maintain full stack applications using
Next.js, React, Node.js, and TypeScript
.
Build applications from scratch, including architecture, database design, API development, authentication, and deployment.
Develop responsive, accessible interfaces and reliable backend services.
Deploy and manage applications on
AWS
, with attention to security, performance, scalability, and cost.
Set up and maintain
CI/CD pipelines
for automated testing, builds, and deployments.
Own DevOps activities, including environment configuration, infrastructure automation, monitoring, logging, and troubleshooting.
Build
AI-powered solutions
by integrating LLM APIs, enterprise data sources, and external services.
Develop
automated AI workflows
for business processes, content operations, and internal productivity.
Implement LLM capabilities such as structured outputs, tool calling, and retrieval-augmented generation (RAG), where appropriate.
Use
AI-assisted coding tools
to accelerate development while reviewing and validating generated code for quality, security, and maintainability.
Collaborate with project managers, designers, and stakeholders to translate requirements into practical technical solutions.
Maintain technical documentation, conduct code reviews, and support applications after launch.
Required Skills & Experience
Proven experience of 8 years, delivering full stack web applications, including projects built from scratch and deployed to production.
Strong proficiency in
JavaScript/TypeScript, Next.js, React, and Node.js
.
Experience designing REST APIs and integrating third-party services.
Experience with relational or NoSQL databases, including data modelling and query optimisation.
Hands-on experience with
AWS services
, such as EC2, ECS, Lambda, S3, RDS, CloudFront, IAM, and CloudWatch.
Experience implementing
CI/CD
using GitHub Actions, GitLab CI/CD, Jenkins, or similar tools.
Working knowledge of
Docker, infrastructure as code, and DevOps practices
.
Practical experience integrating
LLMs and AI services
, such as OpenAI, Anthropic, or Amazon Bedrock.
Experience building AI workflows using code, orchestration frameworks, or automation platforms.
Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, or Codex.
Strong understanding of application security, access control, secrets management, testing, and debugging.
Ability to work independently, explain technical decisions clearly, and take ownership from requirements through deployment and support.
Nice to Have
Experience with AI agent workflows.
Experience with workflow automation platforms such as n8n, LangChain, or equivalent.
Familiarity with AWS
Experience with automated testing tools
Experience evaluating AI output quality and managing latency, token costs, data privacy, and failure handling.
At Cheil, we are passionate about
ideas that move
.
We believe that the right idea will move seamlessly across channels: from online to offline, above the line to below the line, in-store to out-of-home. It will move brands, move products and most importantly, move people. The right idea will move everything forward.
Established in 1973 with headquarters in Seoul, South Korea, Cheil Worldwide is one of the world’s leading integrated marketing communications networks, with more than 4500 employees globally in more than 59 offices in 33 countries.
For more information, visit us at: *************