Cloud Engineer

About Arena

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).

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.

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.

The challenges:

• Real-time messaging infrastructure supporting 100,000 concurrent users per customer application;

• High performance systems with API responses in the 10ms range;

• Highly scalable architecture using auto-scaling policies, distributed systems and container orchestration;

• High availability infrastructure powering homepages of some of the most visited websites and apps on the internet;

• Managing distributed databases for our Data Platform storing every user engagement;

• Building infrastructure that enables product teams to ship fast with reliability and observability.

Our Stack:

• AWS;

• DigitalOcean;

• Terraform;

• Docker;

• GitHub & GitHub Actions;

• Node;

• React;

• TypeScript;

• Vercel;

• Datadog;

• CloudWatch;

• Kong API Gateway;

• Cloudflare;

• Varnish.

Work Experience:

• 3–5 years of relevant DevOps / Infrastructure / SRE experience.

Must-Have Experience:

• AWS infrastructure experience with:

• ECS (Fargate);

• Lambda;

• RDS (PostgreSQL);

• DocumentDB (MongoDB compatible);

• S3;

• CloudFront;

• API Gateway;

• WAF;

• SES;

• IAM;

• VPC networking.

• Infrastructure as Code using Terraform;

• CI/CD pipelines using GitHub Actions (or similar);

• Containerization using Docker and container orchestration with ECS;

• Strong networking fundamentals: load balancers, DNS, VPNs, firewalls, CDNs;

• Monitoring and observability using Datadog, CloudWatch, Prometheus or similar;

• Database operations with MongoDB/DocumentDB and PostgreSQL;

• Fluent written and spoken English.

Nice-to-Have Experience:

• Kong API Gateway or other gateway technologies (NGINX, Envoy);

• DigitalOcean infrastructure;

• Varnish cache configuration and CDN optimization;

• FinOps and cloud cost optimization;

• Cloudflare DNS/CDN management;

• Serverless frameworks for Lambda deployments;

• OpenVPN configuration and administration;

• Experience with high-scale systems (1M+ concurrent connections).

Example Projects You’ll Be Working on:

• Build fully redundant production environment with automated switchover capabilities;

• Build fully automated CI/CD pipeline;

• Build fully automated production scaling system;

• Build fully automated monitoring and early-warning systems;

• Implement SOC 2 / ISO 27001 compliance;

• Monitor and maintain systems security and data privacy.

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