Senior Backend Engineer (Python)
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Job Location:
Ho Chi Minh City - Vietnam
Monthly Salary:
VND 3000 - 3000
Experience Required:
5years
Posted on:
Yesterday
Vacancies:
1 Vacancy
Job Summary
About the Opportunity
On behalf of our international client we are seeking a Backend Python Engineer to help build a real-time voice-driven AI agent platform used across multiple product lines.
Our client is a technology partner specializing in building high-quality engineering teams and AI-driven products they are developing a real-time voice-enabled AI agent system used across multiple service brands.
Joining the team as a Backend Python Engineer you will take ownership of the Python backend integrating real-time audio AI services telephony and internal systems into a stable production platform. You will design and implement the core agent logic audio workflows and supporting infrastructure that enable AI voice agents to operate in real-world scenarios.
Key Responsibilities
Build and integrate real-time audio pipelines using LiveKit ensuring stable two-way audio streaming to AI models with low latency.
Implement the core AI agent logic with OpenAI Realtime API including state management function-calling workflows and multi-brand call handling.
Develop and maintain backend services in FastAPI (or similar) to support webhooks call session management state machines logging and monitoring.
Store and manage call transcripts metadata and lead information in Postgres and utilize Redis for caching and background job processing.
Integrate with external systems such as telephony providers (Twilio Telnyx) CRM/dispatch platforms and internal dashboards for operational visibility.
Ensure system reliability through retries fallbacks robust error handling observability tooling and comprehensive logging across the call pipeline.
Work closely with engineering teams to improve the overall architecture and support scaling for real-time AI agent operations.
Requirements
Technical skills:
Strong proficiency in Python backend development (minimum 5 years experience) especially with asynchronous programming and frameworks such as FastAPI.
Experience working with real-time systems (LiveKit WebRTC concepts or similar).
Solid understanding of OpenAI APIs.
Hands-on experience with databases and infrastructure tools including Postgres Redis REST APIs and event-driven architectures.
Ability to integrate multiple external services and APIs into a stable production-ready environment.
Bonus: familiarity with TTS engines (ElevenLabs PlayHT) telephony platforms (Twilio/Telnyx) LLM agent development or audio streaming technologies.
Soft skills:
Strong problem-solving skills with a focus on building reliable maintainable systems.
Clear structured communication and the ability to collaborate effectively with cross-functional teams.
Good English communication skills for working with international teams and technical documentation.
Comfortable working in fast-moving projects where requirements evolve quickly.
Proactive detail-oriented and able to work independently when needed.
Benefits
Attractive salary package competitive within the market.
Year-end bonus based on performance.
Full social insurance according to regulations.
12 days of annual leave per year.
Additional private health insurance for enhanced medical coverage.
Opportunity to work on cutting-edge AI and real-time technology with a highly collaborative engineering team.
Required Skills:
Technical skills: - Strong proficiency in Python backend development (minimum 5 years experience) especially with asynchronous programming and frameworks such as FastAPI. - Experience working with real-time systems (LiveKit WebRTC concepts or similar). - Solid understanding of OpenAI APIs. - Hands-on experience with databases and infrastructure tools including Postgres Redis REST APIs and event-driven architectures. - Ability to integrate multiple external services and APIs into a stable production-ready environment. - Bonus: familiarity with TTS engines (ElevenLabs PlayHT) telephony platforms (Twilio/Telnyx) LLM agent development or audio streaming technologies. Soft skills: - Strong problem-solving skills with a focus on building reliable maintainable systems. - Clear structured communication and the ability to collaborate effectively with cross-functional teams. - Good English communication skills for working with international teams and technical documentation. - Comfortable working in fast-moving projects where requirements evolve quickly. - Proactive detail-oriented and able to work independently when needed.
Company Industry
IT Services and IT Consulting
Key Skills
- APIs
- Docker
- Jenkins
- REST
- Python
- AWS
- NoSQL
- MySQL
- JavaScript
- Postgresql
- Django
- GIT
