Senior Full-Stack Engineer — Lead React/Next.js (Remote)

Royper Royco LLC; United States; On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Remote-first work environment

Equity opportunities

Health insurance

401(k)

Job summary

Royper Royco LLC is seeking a Senior Software Engineer - Full Stack based in the United States to design, develop, and optimize high-performance web applications for financial services, delivering user-friendly experiences with React and Next.js.

You will collaborate with backend engineers (PHP, Clojure), lead technical projects from planning to release, and contribute to CI/CD, observability, and reliability in a remote-first startup environment.

Qualifications

• 10+ years of professional software development experience.
• 5+ years building React applications.
• 2+ years full-stack or backend-intensive experience.
• Strong React performance optimization skills.
• Experience with CI/CD and modern deployment practices.
• Observability and monitoring proficiency.

Responsibilities

• Develop and enhance web applications with React and Next.js.
• Collaborate with PHP and Clojure backend engineers on end-to-end features.
• Lead technical projects from planning through deployment.
• Define priorities with product managers and designers.
• Design and monitor A/B tests using feature flags.
• Build observability with logs, alerts, dashboards, and metrics.
• Ensure production stability and performance.

Skills

React

Frontend expertise

Observability

CI/CD

Collaboration

Tools

Next.js

PHP

Clojure

PostgreSQL

AWS

Kubernetes

Job description

Royper Royco LLC is seeking a Senior Software Engineer - Full Stack based in the United States to design, develop, and optimize high-performance web applications for financial services, delivering user-friendly experiences with React and Next.js.

You will collaborate with backend engineers (PHP, Clojure), lead technical projects from planning to release, and contribute to CI/CD, observability, and reliability in a remote-first startup environment.