Senior Backend Engineer - Remote

Overview

We’re looking for a talented and driven Senior Backend Engineer to join our fast-moving, ambitious team. You’ll play a critical role in helping us evolve from a monolithic architecture to a best-in-class, microservices-based system that can scale to support millions of global users interacting in real time.

In Short

• Design, build, and maintain high-performance backend services in Python using AWS Lambda and other serverless AWS components.
• Lead the evolution from a monolithic codebase to a robust, scalable microservices architecture.
• Develop and optimize APIs to support real-time, low-latency interactions between users and AI-powered characters.
• Work closely with AI engineers, frontend developers, and DevOps to deliver seamless, high-impact features.
• Optimize performance and scalability of OhChat.
• Ensure backend services are secure, resilient, and able to handle high volumes of concurrent users globally.
• Contribute to architectural decisions, set technical direction, and guide best practices in backend design and development.
• Mentor junior engineers and help foster a culture of continuous improvement and technical excellence.

Requirements

• 5+ years of professional experience building and scaling backend systems.
• Strong proficiency in Python, with hands-on experience building serverless applications (preferably using AWS Lambda and have experience of migrating to a microservices architecture).
• Deep understanding of AWS services, including API Gateway, DynamoDB, Step Functions, and related serverless components.
• Strong experience with MongoDB, including performance optimization and data modeling at scale.
• Proven experience designing and implementing microservices architectures.
• Solid understanding of distributed systems, event-driven design, and low-latency API development.
• Familiarity with CI/CD pipelines and automated testing frameworks.
• Strong focus on security, performance, and fault tolerance in backend services.
• Excellent problem-solving skills and the ability to thrive in a fast-paced, evolving environment.
• Effective communication and collaboration skills.

Benefits

• Shape the backend architecture of a next-generation global AI platform from the ground up.
• Work on cutting-edge technologies that redefine how humans interact with AI.
• Join a diverse, ambitious, and creative team pushing technical and creative boundaries.
• High-impact role with opportunities to lead and grow alongside the company.
• Flexible, remote-first culture.
• Competitive compensation and equity package.
• Startup energy with the reach and excitement of a global product.