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Senior AI Engineer

Z47 Portfolio Company

5 - 10 years

Bengaluru

Posted: 12/01/2026

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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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