Senior Backend Engineer – Real-Time AI Platforms

Arena.im; United States; Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Paid time off 4 weeks

Learning & Development budget

Competitive salary & benefits

Global team

Job summary

Arena is a Silicon Valley–based AI startup building communities for creators, publishers and brands. We are seeking a backend-focused engineer to help ship AI-powered features, optimize performance, and scale our real-time services across global customers.

You will join experienced engineers to impact app and API performance, while tackling high-traffic challenges and building resilient data platforms. A strong focus on AI integrations and scalable architecture is essential.

Qualifications

• 3+ years as a backend developer.
• Experience with high-traffic and high-performance applications.
• Curious developer who experiments with AI and AI agents everyday.

Responsibilities

• Build and optimize real-time features to scale to 1M users.
• Collaborate with product and engineering teams to ship AI-powered capabilities.
• Design scalable backend services with low latency (ms range).
• Contribute to architecture decisions and data modeling for scalability.

Skills

TypeScript

Node.js

TDD/BDD/ATDD

REST APIs

High-traffic apps

Tools

MongoDB

AWS

AWS DocumentDB

PostgreSQL

Websocket

Job description

Arena is a Silicon Valley–based AI startup building communities for creators, publishers and brands. We are seeking a backend-focused engineer to help ship AI-powered features, optimize performance, and scale our real-time services across global customers.

You will join experienced engineers to impact app and API performance, while tackling high-traffic challenges and building resilient data platforms. A strong focus on AI integrations and scalable architecture is essential.