AI Engineer (Project based / Part Time / Freelancer)

About the Role

We are seeking a skilled AI Engineer to design and build robust AI pipelines for a production-ready voice AI agent. You'll be responsible for setting up the complete architecture—from voice cloning and LLM fine-tuning to real-time STT/LLM/TTS integration—with a focus on performance, reliability, and natural interaction.

This is a hands-on, model-building role ideal for engineers who thrive on building intelligent systems from the ground up.

Responsibilities

• Design and implement end-to-end AI pipelines integrating:
• Speech-to-Text (STT)
• Language Model (LLM) reasoning
• Text-to-Speech (TTS)
• Fine-tune lightweight open-source LLMs (e.g., Phi-2, Mistral, TinyLLaMA) on domain-specific conversational data
• Clone realistic voice models using open-source TTS libraries (e.g., Coqui, Bark, TorToiSe)
• Optimize inference latency for real-time voice interaction
• Preprocess and curate audio/text datasets for model training
• Integrate AI components into the backend of a voice agent system
• Set up training and deployment infrastructure using cloud GPU platforms (e.g., AWS, Lambda Labs, GCP)
• Build monitoring, logging, and testing tools for model behavior and drift
• Collaborate with product and external telephony teams to align AI output with business goals

Required Skills

• Strong Python development skills, with experience in ML libraries such as PyTorch and Hugging Face Transformers
• Hands-on experience training or fine-tuning TTS and LLM models
• Experience building STT/LLM/TTS pipelines for real-time or near real-time systems
• Familiarity with voice synthesis tools (Coqui TTS, Bark, etc.)
• Knowledge of prompt engineering and conversational design
• Experience deploying models on GPU-backed environments using Docker or Conda
• Ability to work with raw datasets (audio and text) and implement efficient data pipelines

Nice to Have

• Experience with telephony integration (e.g., Twilio, SIP, ViciDial)
• Experience with LoRA or QLoRA for parameter-efficient fine-tuning
• Familiarity with vector search and retrieval-augmented generation (RAG)
• Knowledge of speech prosody control and expressive speech synthesis

Salary & Benefits

• Competitive salary and fringe benefits.
• Paid Time off
• Leaves encashment
• EOBI
• Fuel Card
• Professional Development
• Career Advancement
• Team Building Activities
• Innovative Work Environment
• Work-Life Balance
• Company trips
• Wellness Programs
• Performance based promotion

Location: Blue Area Islamabad

Office Hours: 05:00 PM to 02:00 AM (Monday to Friday)

Job Types: Part-time, Temporary, Contract

Education:

• Bachelor's (Preferred)

Language:

• Speak English fluently (Preferred)

Work Location: Remote