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