Senior Full-Stack Engineer (Next.js / Node)

Largify Solutions; United States; Remote; USD 120,000 - 165,000; Full time

Benefits offered by this job

Remote-first

Cross-border collaboration

Mentorship and growth path

Projects across SaaS, AI, and growth

Job summary

Largify Solutions is seeking a senior full‑stack developer to own end‑to‑end delivery of production web applications using TypeScript, Next.js, and Node.js.

You will design PostgreSQL or Supabase schemas, implement authentication and billing, and collaborate with product and design teams across remote, international locations. This role emphasizes accessibility, performance, and writing clear documentation, with opportunities to mentor teammates and progress toward lead responsibilities.

Qualifications

• At least four years of experience delivering production web applications.
• Strong React, Next.js, and Node.js skills using TypeScript.
• Solid SQL and relational data modeling experience; PostgreSQL is preferred.
• Experience with authentication, file uploads, and at least one payments or messaging integration.
• Ability to own work in an asynchronous remote team and communicate progress in writing.
• Examples or references demonstrating shipped client or SaaS products.

Responsibilities

• Build and maintain features in Next.js using the App Router, React, and TypeScript.
• Design PostgreSQL or Supabase schemas, access controls, and dependable API boundaries.
• Implement authentication, billing, notifications, and external service integrations.
• Improve accessibility, loading and error states, and performance on public-facing pages.
• Work with product and design partners to clarify requirements and reduce rework.
• Review code, mentor other engineers, and document decisions for teams supporting the product.

Skills

React

Next.js

Node.js

TypeScript

PostgreSQL

Supabase

Authentication

Payments integration

Messaging integration

Remote teamwork

Tools

PostgreSQL

Supabase

Job description

Role overview

Own full-stack delivery for production web applications, from clarifying client needs with design and delivery partners to shipping and supporting features. The work spans SaaS products, operational platforms, authenticated dashboards, and public websites, with a focus on reliable TypeScript, sound data models, and polished user experiences.

Responsibilities

• Build and maintain features in Next.js using the App Router, React, and TypeScript.
• Design PostgreSQL or Supabase schemas, access controls, and dependable API boundaries.
• Implement authentication, billing, notifications, and external service integrations.
• Improve accessibility, loading and error states, and performance on public-facing pages.
• Work with product and design partners to clarify requirements and reduce rework.
• Review code, mentor other engineers, and document decisions for teams supporting the product.

Requirements

• At least four years of experience delivering production web applications.
• Strong React, Next.js, and Node.js skills using TypeScript.
• Solid SQL and relational data modeling experience; PostgreSQL is preferred.
• Experience with authentication, file uploads, and at least one payments or messaging integration.
• Ability to own work in an asynchronous remote team and communicate progress in writing.
• Examples or references demonstrating shipped client or SaaS products.

Benefits and work setup

• Remote-first work with some schedule overlap for teams and clients across the UAE, US, and UK.
• Work on real products across software, AI, and growth marketing engagements.
• Clear ownership, written collaboration, and mentorship, with a potential path toward lead responsibilities.
• Compensation and benefits are discussed during the interview process.