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

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

Remote

United kingdom

Senior

Full Time

09-12-2025

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Skills

Leadership Python Go Research Training Architecture PyTorch Autonomy

Job Specifications

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.

About the Company

When it comes to technology talent, Opus Recruitment Solutions are the specialists. We provide the skills needed most to markets at the forefront of change, evolving with the ever-changing needs of our clients to propel their people strategy and build world-class teams to power the future. With a global reach, diverse networks and an established market reputation, we are the partner of choice for organisations looking for flexible and trusted technology talent solutions to achieve long-term success. Our clients work acros... Know more