Cloud Engineer

<h2> </h2> <h2><strong>About Arena:</strong></h2> <p>Arena is 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 responsibility). </p> <p>We are 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 Agent AI.</p> <p>Sometimes you're stuck in a job that doesn't make sense. Refactoring code from ages ago, the stack is miles away from what it's supposed to be. If you love a good challenge, enjoy solving meaningful problems, and want to be a part of one of the fastest-growing AI startups in the Silicon Valley — then Arena is the company you're looking for.</p> <h2> </h2> <p> </p> <h2><strong>The challenges:</strong></h2> <ul> <li>Real-time messaging infrastructure supporting 100,000 concurrent users per customer application;</li> <li>High performance systems with API responses in the 10ms range;</li> <li>Highly scalable architecture using auto-scaling policies, distributed systems and container orchestration;</li> <li>High availability infrastructure powering homepages of some of the most visited websites and apps on the internet;</li> <li>Managing distributed databases for our Data Platform storing every user engagement;</li> <li>Building infrastructure that enables product teams to ship fast with reliability and observability.</li> </ul> <p> </p> <h2><strong>Our Stack:</strong></h2> <ul> <li>AWS;</li> <li>DigitalOcean;</li> <li>Terraform;</li> <li>Docker;</li> <li>GitHub & GitHub Actions;</li> <li>Node;</li> <li>React;</li> <li>TypeScript;</li> <li>Vercel;</li> <li>Datadog;</li> <li>CloudWatch;</li> <li>Kong API Gateway;</li> <li>Cloudflare;</li> <li>Varnish.</li> </ul> <p> </p> <h2><strong>Work Experience:</strong></h2> <ul> <li style="font-weight: 400;"> <p>3–5 years of relevant DevOps / Infrastructure / SRE experience.</p> </li> </ul> <p> </p> <h2><strong>Must-Have Experience:</strong></h2> <ul> <li><strong>AWS infrastructure</strong> experience with: <ul> <li>ECS (Fargate);</li> <li>Lambda;</li> <li>RDS (PostgreSQL);</li> <li>DocumentDB (MongoDB compatible);</li> <li>S3;</li> <li>CloudFront;</li> <li>API Gateway;</li> <li>WAF;</li> <li>SES;</li> <li>IAM;</li> <li>VPC networking.</li> </ul> </li> <li>Infrastructure as Code using <strong>Terraform</strong>;</li> <li>CI/CD pipelines using <strong>GitHub Actions</strong> (or similar);</li> <li>Containerization using <strong>Docker</strong> and container orchestration with <strong>ECS</strong>;</li> <li>Strong networking fundamentals: <strong>load balancers, DNS, VPNs, firewalls, CDNs</strong>;</li> <li>Monitoring and observability using <strong>Datadog, CloudWatch, Prometheus or similar</strong>;</li> <li>Database operations with <strong>Mon