Full Stack Javascript Engineer, HFC

๐Ÿข Tiny ยท all 2 jobs
๐Ÿ“ Argentina, Brazil, Canada +4 more
๐Ÿ’ฐ USD 40 - 60 / hourly
๐Ÿ“… Posted Oct 18, 2026 ยท via Himalayas
๐Ÿท Full Stack Developer, Javascript Developer, Front End Developer, Backend Engineer, Web Developer, Senior Full Stack Engineer (javascript Python) +3 more
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Senior Full-Stack JavaScript Engineer (Next.js / React / AWS) - Backend Focus
Open to Full or Part-time

We are seeking an accomplished Senior Full-Stack JavaScript Engineer to lead the design, development, and optimization of high-performance, customer-facing web applications. The ideal candidate brings strong architectural thinking, hands-on technical depth, and the ability to mentor a team while upholding best practices across the stack.

You will own the end-to-end delivery of scalable, SEO-optimized, and visually rich experiences built on modern web technologies such as Next.js, React, and TypeScript, while leveraging AWS, Cloudflare, and GraphQL for performance, resilience, and extensibility.
Key Responsibilities

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Architect, develop, and maintain full-stack web applications using Next.js, React, and TypeScript, following modern design and development standards.

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Lead technical decision-making and enforce best practices in code structure, performance, testing, and documentation.

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Collaborate with product managers, designers, and backend teams to translate complex business needs into scalable technical solutions.

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Build and maintain reusable, performant, and accessible UI components using Chakra UI, Tailwind, or similar frameworks.

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Integrate with headless CMS platforms (e.g., Contentful or equivalent) and Stripe for dynamic content and secure payment processing.

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Implement robust data integrations using GraphQL and RESTful APIs.

- Experience with PostgREST

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Leverage Cloudflare for edge rendering, CDN caching, and performance optimization.

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Enhance search capabilities through AWS OpenSearch and implement advanced SEO strategies and Core Web Vitals optimizations.

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Mentor and guide junior engineers, conduct code reviews, and drive a culture of technical excellence and collaboration.

Core Skills & Qualifications

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5+ years of professional experience in full-stack JavaScript/TypeScript development.

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Expert proficiency with React.js, Next.js, HTML5, CSS3, and modern build pipelines.

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Strong understanding of Server-Side Rendering (SSR), Static Site Generation (SSG), and Incremental Static Regeneration (ISR).

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Deep experience with state management libraries such as Jotai, Zustand, or Recoil.

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Proven ability to architect and optimize large-scale web applications for SEO, performance, and accessibility.

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Experience with AWS (Lambda, ECS/Fargate, OpenSearch, S3) and Cloudflare Workers or equivalent CDN-edge technologies.

Originally posted on Himalayas

Flights + hotels

This role requires you to be in Argentina +6. If that means relocating or flying in, it is worth checking fares before you commit to a start date.

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