Backend Engineer - Real-time AI APIs, Highly Scalable

arenaim; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Be part of the team in Silicon Valley

Competitive salary package & benefits

4 weeks of paid time-off

Learning and Development budget

Global team, diverse culture

Job summary

Arena is hiring a backend developer to accelerate our AI-powered platform. You will work on a fast-growing stack (TypeScript, Node.js, MongoDB, AWS) to ship scalable features and ultra-low-latency services for millions of users. You will partner with product and engineering teams to push performance and reliability.

Join a Silicon Valley–born startup with global impact, work on high-availability systems, and help build the infrastructure that enables real-time conversations at scale.

Qualifications

• Proficient in TypeScript and Node.js with a focus on scalable backend systems.
• Experience designing RESTful APIs for high-traffic applications.
• Familiarity with TDD/BDD/ATDD and automated testing practices.
• Knowledge of document databases (MongoDB, AWS DocumentDB) and cloud services (AWS).

Responsibilities

• Build and optimize real-time, AI-powered backend features for high availability and low latency.
• Collaborate with product and engineering teams to ship scalable services.
• Design, implement and iterate on AI agent-based architectures and data pipelines.
• Ensure code quality through testing, reviews, and CI/CD practices.

Skills

TypeScript

Node.js

REST APIs

TDD/BDD/ATDD

Tools

MongoDB

AWS DocumentDB

AWS

WebSockets

Go

Job description

Arena is hiring a backend developer to accelerate our AI-powered platform. You will work on a fast-growing stack (TypeScript, Node.js, MongoDB, AWS) to ship scalable features and ultra-low-latency services for millions of users. You will partner with product and engineering teams to push performance and reliability.

Join a Silicon Valley–born startup with global impact, work on high-availability systems, and help build the infrastructure that enables real-time conversations at scale.