Job Description
Position : AI Research Engineer – Small Language Models & On-Device AI
Work Type : Full Time/Hybrid (India)
Company Location : Surat, Gujarat

At VideoSDK, we’re building the real-time intelligence layer for the next generation of applications — fast, private, multimodal, and on-device.

We're hiring an AI Research Engineer to lead infrastructure development for small language models (SLMs) and speech systems, optimized for on-device multimodal AI. Your work will directly power products like real-time voice agents, live translation, intelligent video systems, and low-latency assistants — all running beyond the cloud.

What You'll Work On
- Build scalable infrastructure to train, evaluate, and deploy small language models efficiently.
- Design and implement RL-based training loops (e.g., PPO, DPO, RLAIF) for tuning small models in constrained environments.
- Work with speech systems, including speech-to-text, text-to-speech, and voice activity detection.
- Optimize models for on-device inference – targeting mobile, browser, and edge hardware (CPU, GPU).




- Contribute to building real-time multimodal AI pipelines combining text, audio, and video.
- Translate cutting-edge research into clean, production-ready code.
- Drive experiments on quantization, distillation, and architecture search for efficient deployment.

What We're Looking For
- Robust understanding of training, testing, and fine-tuning small models (≤2B parameters).
- Experience with reinforcement learning for language models (GRPO, PPO).
- Proven experience working with speech models (Whisper, xTTS, Silero etc).
- Ability to read and implement research papers quickly and effectively.
- Solid Python and PyTorch skills with an eye for clean, modular code.
- Experience with building and managing custom datasets, training pipelines, and evaluation suites.
- Familiarity with multimodal AI, particularly combining audio, text, or video.

Bonus Points
- Experience optimizing inference for mobile or

📌 AI Research Engineer (Surat)
🏢 Video SDK
📍 Surat