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
Originally posted on Himalayas