Join to apply for the Senior Backend Engineer role at OhChat

Join to apply for the Senior Backend Engineer role at OhChat

About Us

Oh is building the OpenAI of the spicy content industry. We’re a company at the forefront of the generative AI revolution, combining cutting-edge models developed in-house, with proprietary data sources and distribution via our consumer platform, OhChat, and market-leading API.

About Us

Oh is building the OpenAI of the spicy content industry. We’re a company at the forefront of the generative AI revolution, combining cutting-edge models developed in-house, with proprietary data sources and distribution via our consumer platform, OhChat, and market-leading API.

OhChat now has over 250,000 users and hosts Digital Twins of household names, and our API is integrated into some of the biggest platforms in the adult content space, distributing those Digital Twins across the internet. Backed by $8M in venture funding, we’re quickly establishing ourselves as the dominant, essential layer for adult creators and platforms to adopt AI.

Our aim is for OhChat to be the leading “AI OnlyFans” platform and our API to be the go-to for all adult platforms wanting the technology and our Digital Twins’ IP, in a combined package - ultimately we aim to be the most dominant AI player in the entire adult industry, ahead of expansion to adjacent industries such as companionship and more general creator industry.

Websites: oh.xyz & ohchat.com

Job 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.

Our backend is currently built in Python, using AWS Lambda and serverless architecture, and relies on MongoDB as the primary database. As we move toward microservices, you’ll help design, build, and optimize new services and shape the future of our core infrastructure.

Key Responsibilities

• 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.
  
  

• 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 develo
• 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.
  
  

• Experience supporting AI/ML-driven backend services and real-time applications.
• Familiarity with WebSocket-based architectures and live data streaming.
• Experience working in high-growth, consumer-facing tech startups.
• Contributions to open source projects or active involvement in the Python development community.
• Knowledge of content moderation or privacy considerations in large-scale social platforms.
  
  

• 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.
  
  

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Technology, Information and Internet

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