Onix is looking for a Senior Backend Engineer to help us build and scale cutting-edge infrastructure for next-gen AI, video, and data products. You’ll play a critical role in designing foundational systems that empower innovative product experiences and enable our AI teams to move faster.

Required Skills:

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 5+ years of backend engineering experience.
• Proficiency in Python, Golang, C++, or Java.
• Experience with relational and NoSQL databases such as PostgreSQL, MySQL, or MongoDB.
• Familiarity with cloud services like AWS, GCP, or Azure.
• Strong understanding of API design, backend services, and distributed systems.

Required English Level:

• Upper-Intermediate or higher.

Responsibilities:

• Data Infrastructure – Enable scalable, next-gen analytics capabilities.
• Streaming Infrastructure – Power real-time avatar and video streaming technologies.
• ML Infrastructure – Support model training, inference, and large-scale ML workflows.
• Image/Video Pipelines – Architect robust media processing and rendering backends.
• Dev Tools – Create internal tools that increase developer productivity and velocity.
• Work closely with product engineers, ML researchers, and other stakeholders to deliver performant, production-grade systems.
• Monitor backend performance, detect anomalies, and drive improvements to reliability and scalability. 
• Maintain high standards through testing, code reviews, pair programming, and clean architecture practices. 
• Stay current with backend, infrastructure, and ML system trends and bring best practices into the team.