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Principal JavaScript Engineer

Backend EngineerSoftware EngineerFull TimeRemoteLeadTeam 11-50H1B No SponsorCompany SiteLinkedIn

Location

Vietnam

Posted

76 days ago

Salary

0

Seniority

Lead

Job Description

Principal JavaScript Engineer

qode.world

• Design and deliver high-quality, secure, and scalable engineering solutions. • Apply AI in practical and impactful ways to automate and enhance customer workflows. • Build and operate systems capable of supporting advanced AI workloads at scale. • Uphold strong engineering standards, including testing, code quality, and long-term maintainability. • Communicate clearly and collaborate across teams to ensure alignment and predictable delivery. • Provide mentorship and technical leadership, helping elevate the broader engineering organization. • Contribute to the architectural design and implementation of new features and services. • Participate in code reviews and ensure adherence to coding standards. • Troubleshoot and resolve complex technical issues. • Stay up-to-date with the latest trends and technologies in JavaScript, AI, and cloud computing.

Job Requirements

  • 9+ years of full-stack engineering experience, including leading the delivery of complex systems.
  • Be fluent in English communication skills (at least C1 level).
  • Demonstrated success building and shipping production-grade applications in SaaS, B2B, FinTech, or similar environments.
  • Hands-on experience developing and integrating AI-powered features such as LLM-based automation, classification, document processing, or workflow enhancements.
  • Working knowledge of AI development and evaluation tools, including vector search, embeddings, prompt frameworks, or AI-assisted development tools.
  • Strong proficiency in JavaScript and TypeScript.
  • Solid experience with modern backend technologies (Node.js; NestJS is a plus) and frontend frameworks (React or Vue).
  • Strong experience with relational databases (Postgres or MySQL), NoSQL databases (MongoDB), and ORMs such as TypeORM and Mongoose.
  • Experience designing scalable architectures, APIs, and services with strong testing and observability practices.
  • Good understanding of cloud platforms (AWS preferred), CI/CD pipelines, and DevOps fundamentals.
  • Excellent communication skills and experience working closely with Product, Design, and QA teams.
  • A proven history of mentoring engineers and improving engineering quality across teams.

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