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# Principal Engineer -- Full-Stack TypeScript

- **Company:** Hook LLC
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Query Performance, JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon S3, Bash Shell, Cascading Style Sheets (CSS), Cloud Computing, Cloud Storage, Software Quality, Code Review, Databases, Continuous Integration, Cursor, Amazon DynamoDB, Identity and Access Management, Python (Programming Language), Key Management, PostgreSQL, Routing, Node.Js, Performance Tuning, Microsoft Copilot, Standard Sql, Next.js, Amazon Simple Notification Service (SNS), Software Engineering, TypeScript, AWS Cdk, Network Routers, Pulumi, Google Cloud, ReactJS, Large Language Models, Claude Code, Caching, AWS Lambda, Firebase, Backend, Agentic-AI, Adobe, Amazon Relational Database Service, Playwright, AWS Fargate, Free and Open-Source Software, Figma, JestJS, Amazon Simple Queue Service (SQS), Terraform, Api Management, Docker
- **Published:** October 30, 2026
- **Apply:** https://job-boards.greenhouse.io/hook/jobs/8922828002

## About the Role

* 8+ years of professional software engineering experience, with at least 5 years writing production TypeScript/JavaScript as your primary language
 * Expert-level TypeScript: advanced types and generics, strict-mode codebases, type-safe API contracts, and a strong grasp of the JavaScript runtime (event loop, async patterns, modules, gotchas)
 * Deep Node.js experience: building and maintaining production HTTP APIs and back-end services with Express or a comparable framework, including auth, validation, error handling, background jobs, and performance
 * Deep React expertise: component architecture, hooks, state management, data fetching, and performance optimization for complex, highly interactive, multi-user applications, CSS solutions
 * Production Next.js experience: App Router, server components, server-side rendering, routing, and caching
 * Strong hands-on Google Cloud Platform or AWS experience - you have personally deployed and operated production applications, not just consumed them. For example:

 * GCP: Cloud Run, Cloud Functions, Cloud SQL, Firestore, Pub/Sub, Cloud Storage, IAM
 * AWS: Lambda, ECS/Fargate, RDS, DynamoDB, SQS/SNS, S3, IAM

Containers and delivery: Docker for development and production, CI/CD pipelines, and environment/secrets management

Databases: strong SQL (PostgreSQL or similar) and working knowledge of document databases, including schema design and query performance

Testing discipline: unit, integration, and end-to-end testing (e.g., Vitest/Jest, Playwright) as a normal part of how you ship

Software engineering fundamentals: you write secure, reliable, maintainable code and make well-reasoned architectural trade-offs without over-engineering

AI-assisted development: you use tools like Claude Code, Cursor, or Copilot fluently, while remaining the expert owner of system design and code quality

Clear communication: you can explain architecture to engineers and the same ideas, plainly, to creatives, producers, and clients

Ownership and autonomy: you thrive with ambiguity, set your own direction, and see work through to production and beyond

NICE TO HAVE

 * Infrastructure as code (Terraform, Pulumi, or AWS CDK)
 * Experience building internal tools, workflow automation, or developer/creative productivity platforms
 * Familiarity with plugin or extension development for creative tools (e.g., Figma, Adobe UXP) - in TypeScript
 * Python or Bash for scripting and automation
 * Experience with LLM APIs, AI agents, or AI-powered product features
 * Experience working in an agency, studio, or other creatively driven, fast-paced environment
 * Open-source contributions

## Description

We're looking for a senior full-stack engineer who lives in TypeScript. You write clean, well-typed, well-tested TypeScript on both sides of the stack - React and Next.js on the front end, Node.js services and APIs on the back end - and you deploy and operate what you build on Google Cloud or AWS., * Architect, build, and ship production full-stack web applications in TypeScript, from React/Next.js front ends to Node.js services and APIs

 * Design and own back-end services, APIs, and integrations with third-party platforms
 * Deploy, operate, and monitor applications on Google Cloud or AWS, including infrastructure, CI/CD, task queues, observability, security, and cost
 * Own product areas end to end: problem discovery, technical design, implementation, testing, deployment, and ongoing improvement
 * Partner with creative, production, and operations teams to understand their workflows and turn them into reliable, well-designed software
 * Integrate AI capabilities (LLM APIs, agents, automation) into the applications you build
 * Set the technical bar: drive code review, testing standards, documentation, and best practices
 * Serve as technical lead on select client web projects and occasionally direct freelance developers
 * Evaluate and recommend tools, frameworks, and approaches as Hook's needs evolve