Secure Full-Stack Engineer: React/Next.js on AWS

Fluence International, Inc.; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Fluence International, Inc. is seeking a pragmatic Full-Stack Developer to build and scale Fluence’s B2B products used by clinicians, researchers, and organizations in psychedelic-assisted therapy and mental health.

You’ll work closely with and report to our Senior AI & Design Lead to turn product requirements into robust, secure, and well-documented applications, as well as maintain existing ones. You’ll leverage React, Next.js, TypeScript, and AWS to design reliable APIs, implement secure

Qualifications

• 3+ years of experience as a full-stack or frontend-heavy engineer.
• Strong proficiency in React, Next.js, TypeScript/JavaScript.
• Hands-on experience with AWS for production workloads.
• Solid understanding of web security best practices (OWASP, encryption in transit/at rest, secrets management).
• Experience building systems in or adjacent to healthcare, education, or compliance-heavy environments is a plus.
• Excellent async communication, code ownership, and ability to work with a small, senior-led team.

Responsibilities

• Build and maintain full-stack web applications using React and Next.js.
• Architect reliable backends and APIs; familiarity with AWS (Lambda, ECS/Fargate, API Gateway, RDS/DynamoDB, S3) is important.
• Implement secure authentication, authorization, and RBAC for clinician, admin, and other user workflows.
• Design data models and flows with privacy, auditability, and regulatory considerations in mind.
• Integrate with internal and external APIs and third-party services used in our B2B stack.
• Experience with LLM/AI features in production (guardrails, logging, security considerations).
• Implement logging, monitor performance, and ship production-quality code.
• Collaborate with the Senior AI & Design Lead for clear ownership, feedback, and iteration.
• Maintain clear documentation of architecture, decisions, and interfaces for internal teams.
• (Bonus) Use Convex or similar BaaS / serverless data platforms for rapid product delivery.
• (Bonus) Build and maintain n8n workflows to automate internal operations and connect our product stack.

Skills

React

Next.js

TypeScript/JavaScript

AWS

Web security

Healthcare/compliance

Tools

Convex

n8n

Clerk

Docker

AWS Lambda

Job description

Fluence International, Inc. is seeking a pragmatic Full-Stack Developer to build and scale Fluence’s B2B products used by clinicians, researchers, and organizations in psychedelic-assisted therapy and mental health.

You’ll work closely with and report to our Senior AI & Design Lead to turn product requirements into robust, secure, and well-documented applications, as well as maintain existing ones. You’ll leverage React, Next.js, TypeScript, and AWS to design reliable APIs, implement secure