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

Opus Recruitment Solutions; Remote; GBP 75,000 - 100,000; Full time

Job summary

A leading recruitment agency seeks a Tech Lead to join a dynamic LLM team in Birmingham, UK. The role involves owning the architecture, training, and deployment of AI models that drive core products. Key responsibilities include leading project teams, coding in Python and PyTorch, and managing the entire model lifecycle. Ideal candidates will have proven experience in shipping AI products at scale and a strong emphasis on performance and user experience. The company supports a culture of high autonomy with challenging work, targeting high-impact outcomes.

Qualifications

• Proven experience shipping AI/LLM products at scale.
• Deep technical skills in Python and PyTorch.
• A builder’s mindset with a focus on performance and reliability.

Responsibilities

• Lead and mentor engineers while remaining hands-on in coding.
• Own the model lifecycle, including fine-tuning and designing RAG pipelines.
• Develop advanced moderation and alignment systems.

Skills

Python

PyTorch

AI/LLM product deployment

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.