QA Engineer

arenaim; United States; Remote; USD 60,000 - 110,000; Full time

Benefits offered by this job

Be part of the team in Silicon Valley

Global team

Competitive salary package & benefits

4 weeks of paid time-off

Learning and Development budget

Growth opportunities

Job summary

Arena is a Silicon Valley startup hiring a QA Engineer to ensure quality across web apps and APIs. You’ll collaborate with experienced engineers in a fast-paced environment and contribute to test strategies, automation, and production monitoring.

This role offers mentorship, ownership, and opportunities to grow as you test cutting-edge AI products used by millions of users.

Qualifications

• Some experience (6–18 months) in QA or testing software.
• Familiarity with Cypress, Jest, or Selenium.
• Basic knowledge of JavaScript or TypeScript.
• Understanding of REST APIs and how to test them.
• Advanced English (spoken and written).

Responsibilities

• Collaborate with product and engineering to understand requirements and define test strategies.
• Write and maintain manual and automated test cases for web applications and APIs.
• Run exploratory and regression tests for new features and releases.
• Help monitor issues in production and identify patterns for improvement.
• Contribute to maintaining and expanding our automated test suite using Cypress and Jest.

Skills

QA testing

Cypress

Jest

Selenium

JavaScript/TypeScript

REST API testing

English proficiency

Tools

Browser dev tools

HTML/CSS

Job description

About Arena:

Arena is a startup created in Silicon Valley with a mission to build communities for creators, publishers and brands with the power of AI. Companies using Arena include Disney, Reuters, Fox, Red Bull and NFL. We have +2,000 customers in 150 countries and with +50M users having conversations on Arena per month and engaging with our AI tools.

We are a Series A company backed by top-tier investors such as CRV, Redpoint and Craft Ventures. Arena offers a unique work environment and the chance to collaborate with diverse teammates across multiple countries, with a culture of ownership (autonomy, growth, and specially high performance).

Sometimes you're stuck in a job that doesn't make sense. Managing tasks and infinite backlogs, not talking to customers and miles away from making product decisions. If you love a good challenge, you're a curious product guy who experiments with AI and AI agents every day, and you want to be a part of one of the fastest-growing AI startups in Silicon Valley — then Arena is the company you're looking for.

About the Role:

We’re looking for a QA Engineer who’s passionate about technology, curious about how things work, and eager to ensure quality across our products. You’ll join a supportive, fast-paced environment and collaborate with experienced engineers to test web applications, APIs, and new features as they’re developed.

This is a great opportunity to grow in a company that values mentorship, ownership, and continuous learning.

What you will be doing:

• Collaborate with product and engineering to understand requirements and define test strategies.


• Write and maintain manual and automated test cases for web applications and APIs.


• Run exploratory and regression tests for new features and releases.


• Help monitor issues in production and identify patterns for improvement.


• Contribute to maintaining and expanding our automated test suite using Cypress and Jest.

The challenges:

• Real-time messaging to support 100,000 concurrent users per customer application;


• High performance: our API responses are in the 10ms range;


• High scalability: we use sharding, master-master, and master-slave to ensure scalability;


• High availability: our code is running on homepages of the most visited websites and apps in the internet;


• Distributed databases for our Data Platform storing every user engagement.

You Might Be a Fit If You Have:

• Some experience (6–18 months) in QA or testing software


• Familiarity with tools like Cypress, Jest, or Selenium.


• Basic knowledge of JavaScript or TypeScript.


• Understanding of REST APIs and how to test them.


• Enthusiasm to learn, ask questions, and work in a collaborative environment.


• Advanced English (spoken and written).

Nice-to-Have Experience:

• Experience with HTML/CSS and browser dev tools.


• Exposure to mobile testing (iOS or Android).


• Understanding of how CI/CD and deployment pipelines work.


• Curiosity about how distributed systems scale.

Example Projects You’ll Be Working on:

• Build automated test suites and test cases for web apps, mobile apps, and APIs;


• Build early warning systems that detect production environment errors;Certify production releases;Manual testing, where necessary – we prefer automated tests!Continuously improve and maintain quality standards;Analyze error patterns to identify repeating types of issues;Monitor error and debug sources for production issues.

We also have some sweet perks like:

• Be a part of the team in Silicon Valley and join a global team


• A team of exceptional engineers leading the cutting-edge AI Agents.


• Competitive salary package & benefits


• 4 weeks of paid time-off


• Learning and Development budget


• Key moment to join Arena in terms of growth and opportunities


• Ability to put your stamp on real-world AI applications that serve millions of users.


• Fast-learning environment, entrepreneurial and strong team spirit


• Multiple nationalities: cosmopolite & multi-cultural mindset


• Our people matter, work-life balance is important at Arena