Senior AI Engineer
Z47 Portfolio Company
5 - 10 years
Bengaluru
Posted: 12/01/2026
Job Description
Senior Engineer (Backend and Realtime Agentic AI Systems)
Location: Bengaluru (On-site)
Type: Full-time
Designation: Senior Engineer
About the Role
We are looking for a Senior Engineer who can architect, build, and scale complex backend systems, real-time audio/AI pipelines, and high-performance data infrastructure.
This role requires deep hands-on engineering expertise across Python backend services, WebSockets, real-time audio processing, SQL/Aurora optimization, AI model integrations, and AWS infrastructure.
You will work on mission-critical systems that power real-time voice bots, automated content workflows, multi-source ETL pipelines, and high-scale backend microservices. If you enjoy solving hard engineering problems end-to-end from designing system architecture to writing production-grade code this role is for you.
Key Responsibilities
1. Backend Engineering (Python / FastAPI / Microservices)
- Design, develop, and maintain scalable backend services using Python (FastAPI/asyncio).
- Build REST and WebSocket APIs with high reliability and low latency.
- Implement modular microservice architectures with clear separation of concerns.
- Own API design, versioning, documentation, and production deployment.
2. Real-Time Systems & Audio Infrastructure
- Build and optimize real-time audio streaming pipelines using WebSockets.
- Implement advanced voice interaction features
- Debug concurrency, frame loss, and performance bottlenecks in real-time systems.
3. AI/LLM Engineering (GPT Realtime, TTS, Transcription)
- Integrate and orchestrate LLMs for real-time conversational systems.
- Build tooling around GPT Realtime, transcription models, and TTS engines.
- Design AI workflows with LLMs and Agentic AI Systems
- Optimize AI system costs, latency, and reliability across large-scale usage.
- Develop guardrails and safety frameworks for the LLM use cases ( LLM Ops and Evals )
4. Data Engineering & Database Optimization
- Design and optimize MySQL/Aurora schemas for high-volume datasets.
- Implement partitioning strategies, indexing plans, and query optimizations.
- Build ETL workflows for analytics pipelines.
- Maintain data integrity and performance with replicas, backups, and migrations.
5. Cloud Infrastructure & DevOps (AWS)
- Deploy and maintain systems on AWS and GCP
- Manage CI/CD pipelines, containerization, and automated deployments.
- Implement observability: logging, metrics, alerts (CloudWatch, OpenTelemetry).
- Troubleshoot live production issues involving memory, CPU, concurrency, or networking.
6. System Architecture & Technical Leadership
- Drive architectural decisions for backend, audio, data, and AI systems.
- Establish engineering best practices testing, monitoring, coding standards.
- Lead root-cause analysis and long-term technical fixes.
- Collaborate closely with cross-functional teams (engineering, academic, ops).
Required Skills & Experience
Core Technical Skills
- 510+ years in backend engineering with Python
- Strong experience with:
- WebSocket-based systems
- Real-time streaming pipelines
- Audio processing fundamentals (PCM/WAV, VAD concepts)
- LLM and Agentic AI systems
- Deep understanding of relational DB internals MySQL/Aurora, indexing, query plans.
- Proven ability to design and maintain distributed systems on AWS.
- Strong understanding of cloud networking, Docker, ECS, IAM, and S3-based workflows.
AI / ML Integration Skills
- Experience integrating LLMs via APIs and agents (OpenAI, Whisper, GPT Realtime, Caude, Gemini, etc.).
- Strong understanding of TTS engines, transcription pipelines.
- Ability to build AI-powered backend features with multi-step orchestration.
Systems Engineering Skills
- Hands-on experience with concurrency (asyncio), multithreading, and performance tuning.
- Fluency with ffmpeg, audio transformations, and media workflows.
- Deep debugging skills across logs, traces, async event loops, and memory profiles.
Nice-to-Have Skills
- Experience with real-time communications (RTC), SIP, telephony, VoIP.
- Knowledge of event-driven patterns using Kafka/SQS.
- Exposure to analytics engineering (Looker Studio, Google Sheets APIs).
- Familiarity with content automation workflows (PDF, VTT processing, etc.).
What Success Looks Like
Within 36 months, you should be able to independently:
- Own and operate critical real-time audio + AI pipelines with agentic flows.
- Build and deploy high-quality backend services end-to-end.
- Maintain production stability, optimize performance, and reduce costs.
- Take architectural ownership of challenging engineering problems.
- Improve reliability, latency, and scalability of all core systems.
Why This Role Is Unique
Youll work on a cutting-edge blend of:
- Real-time communication systems
- LLM-driven engineering
- Large-scale data infrastructure
- High-performance backend systems
- Multi-modal AI + audio workflows
Few roles offer exposure across AI + systems engineering + backend + real-time infrastructure at this depth.
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