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 firm is seeking a Tech Lead to join their LLM team. In this hands-on leadership role, you will own the architecture and deployment of models impacting millions globally. Your responsibilities include leading coding efforts, managing the model lifecycle, and developing advanced classification systems. Ideal candidates will have proven experience in shipping AI/LLM products at scale, alongside deep technical skills in Python and PyTorch. This role promises significant autonomy and engagement in solving complex challenges.

Qualifications

• 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.

Responsibilities

• Lead and code: Architect systems, mentor engineers, and stay hands-on in Python / PyTorch.
• Own the model lifecycle from fine-tuning to designing RAG pipelines.
• Develop classifiers and safety systems for smarter moderation.

Skills

Python

PyTorch

AI / LLM products

Model lifecycle management

Systems architecture

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.