Next.js-based Ai-native Fullstack Developer

**Top 3 reasons to join us**: - Compelling rewards, 13th-month salary - Working 5 weekdays and Flexible working time - International Teamwork opportunities **Job description**: **About Cigro/Litmers**: "At Litmers, we partner with clients to help their business succeed through tailored IT consulting." Litmers is ranked 13th among 368 global no-code agencies and is recognized as a Bubble Gold Partner. We help our clients quickly launch their businesses into the market by leveraging speed, flexibility, and cost-effectiveness. However, we are more than just a no-code agency. To meet the demand for more complex and sophisticated systems, we have continuously expanded our capabilities in code-based development. As a result, we have actively adopted **AI-Native development (Vibe Coding)** in our real-world projects, achieving both rapid development and high quality. Founded in 2021 with a team of four, Litmers has grown to a 60-member organization, successfully completing over 110 projects and achieving an annual growth rate of 78%. We focus on generating real business impact across various industries, including manufacturing, finance, commerce, and SaaS. Our full-time engineering team of over 60 members in Korea and Vietnam leads projects with empathy, agility, and impact-driven delivery as core values. **Position Overview**: Litmers is hiring a **Next.js-based AI-Native Fullstack Developer**. This role is not just for a “fullstack developer,” but for a: - **Next-generation AI-Native engineer who can design structured development patterns in collaboration with AI (LLM) and produce high-quality code.** You will perform **AI-assisted development (Vibe Coding)** using Next.js (App Router, Server Components, Server Actions), TypeScript, and Prisma, while also contributing to the evolution of our in-house AI development templates and patterns. **Responsibilities**: - Fullstack feature development using Next.js (App Router, RSC, Server Actions) - Design and implementation of **type-safe communication structure** between FE BE (Server Actions + Zod) - Define and maintain **schema and validation layers** using Zod Develop layered architecture (Actions Service - Repository) - Develop business logic using Prisma, PostgreSQL, and BigQuery - Use AI (LLM) for code generation, refactoring, and documentation automation - Design **AI-reusable development rules**, including naming conventions, project patterns, and folder structures - Review and ensure quality of AI-generated code - Collaborate on enhancing internal development templates, tools, and guidelines **Your skills and experience**: **Requirements**: - Practical experience or equivalent with Next.js (13-15) App Router - Proficiency in TypeScript - Understanding and usage of React / Server Components - Experience with Prisma ORM and SQL-based databases - Understanding of Server Action structure and server/client boundaries - Knowledge of structural patterns such as Clean Architecture and Layered Architecture - Ability to collaborate using Git - Sensibility for modular, type-safe, and testable code - Ability to review AI-generated code and correct problematic patterns - Prompt engineering skills to break down complex features for AI ** Preferred Qualifications**: - Experience with RSC (React Server Components)-centric architecture - Experience with automating JSON Schema / OpenAPI from Zod - Actively used AI dev tools like Cursor, v0, Claude Code, MCP - Experience developing SaaS or data-centric back office/services - Experience with Redis, message queues (Kafka, etc.), serverless architecture - Experience standardizing patterns in large-scale codebases **Why you'll love working here**: **What You’ll Gain**: - Experience developing large-scale Next.js-based B2B/SaaS systems - Insight into how structured, pattern-based development impacts the whole organization - Acquire **next-generation development skills** fit for the AI era - Contribute to core technical assets such as AI development templates, architecture design, and internal tooling - Receive high-quality code reviews and architectural mentoring - Experience a global development culture working with multinational teams in Korea and Vietnam ** Hiring Process**: - Resume Screening - Phone Screening (AI-related) - Final Interview - Offer (_The hiring process includes an _**_AI-based development skills assessment_**_ due to the nature of the position._) **Benefits (Full-Time)**: - 13th-month salary (after 12 months of service) - 12 paid leave days (after 12 months of service) - Full coverage of social, health, and unemployment insurance - On-site work at Thao Dien office - Flexible start time - MacBook and necessary equipment provided - Support for educational materials, books, and courses - Team culture: regular meetups, company events, and interest-based clubs