Tech Lead - AI Start Up - Python, LLMs, 150k PLUS Generous Equity & Fully Remote

Opus Recruitment Solutions; Remote; GBP 80,000 - 100,000; Full time

Job summary

A technology recruitment firm is seeking a Tech Lead to join a client's LLM team in the UK. In this hands-on leadership role, you'll own the architecture, training, and deployment of models impacting millions. Responsibilities include leading code, managing the model lifecycle, and creating advanced moderation systems. Candidates should have proven experience with AI and LLM products, deep expertise in Python and PyTorch, and a pragmatic approach to building quality systems.

Qualifications

• Proven experience shipping AI / LLM products at scale.
• Deep technical skills in Python, PyTorch, and modern LLM stacks.
• Ownership mentality focused on performance and reliability.

Responsibilities

• Lead and architect systems while mentoring engineers in Python.
• Own the model lifecycle, from fine-tuning to designing RAG pipelines.
• Develop classifiers and safety systems for moderation.

Skills

Python

PyTorch

AI / LLM products

Model lifecycle management

Job description

I am looking for a Tech Lead to join my clients LLM team; you’ll own the architecture, training, and deployment of models that drive our core product.

This is a hands-on leadership role : you’ll write production code, define alignment strategies, and ship features that impact millions globally.

Why This Role Is For You

• Massive Scale : Solve real-time challenges in latency, throughput, and context management at 80M+ tokens / day.
• Production Impact : Fine-tune today, see results tomorrow—this is not a research sandbox.
• Complex Problems : Build nuanced moderation and alignment systems for a unique, high-complexity environment.

What You’ll Do

• Lead and code : Architect systems, mentor engineers, and stay hands‑on in Python / PyTorch.
• Own the model lifecycle : From fine-tuning and RLHF / DPO to designing RAG pipelines.
• Build smarter moderation : Develop classifiers and safety systems that go beyond simple filters.

What We’re Looking For

• Proven experience shipping AI / LLM products at scale.
• Deep technical skills in Python, PyTorch, and modern LLM stacks.
• A builder’s mindset : fast, pragmatic, and obsessed with quality.
• Ownership mentality : you care about performance, reliability, and user experience.

Tech Environment

• Scale : 80M+ tokens / day.
• Team : Small, high-impact group with direct access to leadership.
• Culture : High autonomy, low bureaucracy, big challenges.