Principal Full Stack Engineer

New
S
SleekSaaS, FinTech
Workable workplace: remote; Workable locations: Singapore. Australia. India. Philippines. VietnamFull-TimePrincipal
Salary not disclosed
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Job Details

Experience
8+ years shipping and running production SaaS.
Required Skills
Node.jsTypeScriptRESTful APIsDistributed Systems

Requirements

  • Bring 8+ years of experience shipping and running production SaaS.
  • Have experience designing scalable distributed systems, APIs, and service boundaries.
  • Bring substantial TypeScript and Node.js experience.
  • Have experience with both relational and document databases.
  • Be able to own features end to end, from schema and API through UI and production delivery.
  • Have built internal developer tooling, automation, and developer platform workflows used by other engineers.
  • Have experience deploying, monitoring, and operating production systems, including incident response.
  • Understand observability and security as part of production operations.
  • Have built and shipped AI-powered product capabilities and understand how to evaluate, monitor, and improve them in production.
  • Have experience mentoring engineers and establishing durable engineering standards.
  • Thrive in ambiguous environments and drive technical outcomes autonomously.

Responsibilities

  • Architect, build, and maintain production-grade SaaS applications across the full stack using JavaScript/TypeScript, frontend frameworks, and Node.js/NestJS.
  • Design resilient APIs, database schemas, and cloud-native services that can scale with business growth.
  • Partner with Product, Design, and Engineering leaders to turn operational and financial challenges into software solutions.
  • Architect and implement agentic AI capabilities and intelligent workflows in production applications.
  • Establish reliability patterns for AI features, including guardrails, evaluation frameworks, fallback strategies, and model observability.
  • Build and maintain engineering harnesses, automated workflows, and internal developer tooling.
  • Introduce AI-assisted development tools and automated testing, documentation, and debugging aids.
  • Identify and eliminate performance bottlenecks in APIs, data pipelines, and backend microservices.
  • Mentor senior and mid-level engineers, lead architecture reviews, and raise standards for code quality, testing, and system design.
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