Remote Back end Engineer [Brazil]

Description:

• Arena is a Series A company backed by top-tier investors such as CRV, Redpoint, and Craft Ventures, offering a unique work environment and the chance to collaborate with diverse teammates across multiple countries.
• The company is on a mission to build communities for creators, publishers, and brands using AI, with notable clients including Disney, Reuters, Fox, Red Bull, and NFL.
• The role involves making the app and API service faster, more scalable, and more flexible, collaborating with product and engineering teams to ship AI-powered features.
• Key challenges include supporting real-time messaging for 500,000 concurrent users, achieving high performance with API responses in the 10ms range, and designing AI Agents and RAG pipelines.
• The tech stack includes Node.js, TypeScript, Golang, Websocket, Apollo GraphQL, AWS services, Google Firestore/Firebase, MongoDB, PostgreSQL, DynamoDB, Redis, and Cloudflare.

Requirements:

• Candidates must have at least 3 years of experience as a backend developer.
• Experience with high-traffic and high-performance applications is required.
• A curious developer who experiments with AI and AI agents daily is preferred.
• Must-have experience includes TypeScript, Node.js, TDD, BDD, or ATDD, REST APIs, and MongoDB or AWS DocumentDB.
• Nice-to-have experience includes familiarity with statically typed languages (e.g., Java, C#, Go), object-oriented and functional programming, Golang, AWS, SQL, and React.

Benefits:

• Employees will be part of a team in Silicon Valley and join a global team of exceptional engineers leading cutting-edge AI Agents.
• The position offers a competitive salary package and benefits, including 4 weeks of paid time off.
• There is a learning and development budget available for employees.
• This is a key moment to join Arena in terms of growth and opportunities, allowing employees to impact real-world AI applications serving millions of users.
• The work environment promotes fast learning, entrepreneurial spirit, and a strong team spirit, with a cosmopolitan and multicultural mindset.
• Work-life balance is emphasized, as the company values its people.