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Full Stack Developer
Seoul (On-site) • Contract
- 한국어: NOT REQUIRED
- Typescript
- Javascript
- SQL
- React
- CSS
About the Role
Packative is building the operating system for the packaging industry. We are preparing our expansion into Japan and launching a pilot project with strategic partners in the market.
For this phase, we are looking for a senior-level Full Stack Developer (contractor) who can execute fast, build production-grade systems, and work closely with our core team in Seoul.
Depending on the outcome of the pilot, this contract may be extended or converted into a longer-term role.
You will work across our core platform (packative.com), connecting real-world manufacturing and logistics with automation, ERP workflows, and AI-driven tooling.
Contract Period: Until July 2026
What You Will Do
- Build and ship production-ready features across frontend and backend using React, Next.js, and NestJS
- Design, implement, and maintain scalable APIs and internal tools supporting ERP and marketplace workflows
- Deploy and operate systems using AWS-native services such as Lambda, S3, CloudFront, and RDS
- Work with PostgreSQL, MariaDB, and Redis to ensure performance, reliability, and data integrity
- Collaborate closely with product, design, and AI teams during the Japan pilot to iterate fast based on real partner feedback
- Use AI development tools like Copilot, GPT, and internal assistants to increase delivery speed and code quality
- Participate in architecture decisions, code reviews, and testing to keep the platform maintainable as we scale
What We Are Looking For
- 3 to 6 years of hands-on full stack experience, ideally in SaaS, platforms, or internal systems
- Strong TypeScript fundamentals with real-world experience in NestJS, React, and Next.js
- Solid frontend skills using CSS, SCSS, and Tailwind CSS
- Proven experience building and operating systems on AWS
- Strong understanding of relational databases and performance optimization using PostgreSQL or MariaDB, plus Redis
- Experience with CI/CD pipelines, ideally using GitHub Actions
- Clear thinking around clean code, system design, and API architecture
- Comfortable using AI tools for refactoring, debugging, test generation, and productivity gains
- Ability to work independently, take ownership, and deliver without hand-holding
Nice to Have
- Experience with ERP-style workflows, marketplaces, or complex internal tools
- Exposure to manufacturing, packaging, print production, or logistics
- Experience building developer tooling or internal automation using LLMs
- Prior experience working with or launching products for the Japanese market