Tech Lead Manager (AI)

Location: Seoul, South Korea; hybrid work

Company

hirify.global builds multimodal AI models and production-scale video intelligence infrastructure for media, entertainment, sports, security, and government.

What you will do

• Build and lead the founding team for Jockey Core, including hiring, team growth, delivery, and technical direction.
• Own the end-to-end roadmap for Jockey Core, from model and engine selection through efficiency optimization, production serving, and scale-out.
• Lead critical model-serving and inference architecture decisions and set the technical bar through design reviews.
• Evaluate latency, throughput, and cost tradeoffs using measured data.
• Partner with the Pegasus, agent, and infrastructure teams on capacity planning and service-level objectives.
• Adopt AI-assisted development tools such as Claude, Gemini, and GPT to improve team productivity.

Requirements

• Track record leading ML or infrastructure teams as a hands-on technical lead or manager, ideally while founding or scaling a small team.
• Deep production experience serving and optimizing large-scale LLM inference using vLLM, TensorRT-LLM, SGLang, or similar systems.
• Experience with batching and scheduling, quantization, disaggregated prefill/decode, and speculative decoding.
• Ability to drive ambiguous technical decisions using latency, throughput, and cost data.
• Excellent communication and people leadership skills.
• Professional work is based in Seoul, South Korea under a hybrid arrangement.

Nice to have

• Experience with model compression, including pruning, quantization-aware training, or distillation.
• Experience productionizing reasoning or agentic LLMs.
• Experience with multi-region or multi-cluster serving and large-scale GPU capacity planning.
• Contributions to or customization of an LLM inference server's internals.
• Master's or PhD in Machine Learning, Computer Science, or a related field.

Culture & Benefits

• Global team working with global B2B customers, with autonomy and collaboration.
• Latest MacBook, home-office equipment support worth approximately KRW 700,000, and equipment replacement every three years.
• Unlimited LLM tokens for technical roles.
• Annual professional development budget of approximately KRW 1.4 million for courses, conferences, and memberships.
• English education, global buddy program, commuting taxi support at night and on weekends, and office meals and snacks.
• Annual health checkups for the employee and one family member, group insurance, flu vaccination support, and a two-week paid holiday break at year end.