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

Opus Recruitment Solutions; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading recruitment agency is seeking a Tech Lead to join a client's LLM team in England. This hands-on leadership position requires experience in shipping AI products at scale. You will be responsible for owning the model lifecycle, mentoring engineers, and developing innovative solutions for complex problems. Candidates should have strong technical skills in Python and PyTorch and a passion for quality and user experience. This is an exciting opportunity to impact millions globally.

Qualifications

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

Responsibilities

• Architect systems and mentor engineers.
• Own model lifecycle from fine-tuning to designing pipelines.
• Develop classifiers and safety systems.

Skills

Python

PyTorch

AI products

LLM stacks

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.