Senior Full-Stack Engineer – React & AI Platform (Remote)

Relha LLC; Draper (UT); Hybrid; USD 102,000 - 160,000; Full time

Benefits offered by this job

Flexible work environment

Annual wellness days

Volunteer days / Wellbeing program

Job summary

Proofpoint is seeking a full-time, senior Frontend/Full-stack Software Engineer III to join the Satori AI Platform team. You will craft React interfaces and robust APIs used by Fortune 500 customers to deploy and monitor AI security agents.

The role emphasizes frontend engineering with React/TypeScript while touching the middle tier and automation, enabling scalable, mission-critical applications for large deployments.

Qualifications

• Strong experience building applications with React and modern front-end tooling (TypeScript, a modern build/bundler toolchain, component and state management patterns, and automated testing).
• Experience building and consuming HTTP/REST APIs, and comfort working at least one layer into the back end that serves your UI.
• Experience debugging production problems that span multiple stack components.
• A B.S. or M.S. in Computer Science (or equivalent experience).

Responsibilities

• Design and build React interfaces used by large enterprise customers that are clean, accessible, and actually usable — not just feature-complete.
• Turn dense data (usage metering, credit balances, spending caps, consumption forecasts, agent lifecycle state) into visualizations and workflows that communicate clearly at a glance.
• Build and evolve the API routes that power your interfaces, and shape the contracts between front end and back end.
• Tune performance across the stack — time to first interaction, render performance over large datasets, API response times, and payload size.
• Participate in customer feedback sessions to understand customer needs and build products customers are genuinely excited to use.
• Write automation that deploys and monitors your systems in the cloud.

Skills

React

TypeScript

Frontend tooling

Automated testing

REST APIs

Performance tuning

Education

B.S./M.S. in CS

Job description

Proofpoint is seeking a full-time, senior Frontend/Full-stack Software Engineer III to join the Satori AI Platform team. You will craft React interfaces and robust APIs used by Fortune 500 customers to deploy and monitor AI security agents.

The role emphasizes frontend engineering with React/TypeScript while touching the middle tier and automation, enabling scalable, mission-critical applications for large deployments.