Senior AI Engineer
Harnham
New York · Posted November 6, 2026
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Among computer and information research scientists, AI is already used for a large share of the tasks. Measured exposure for computer and information research scientists: 34% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
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Senior AI Engineer | New York (onsite four days a week) | $155,000 to $200,000 base + 40%+ bonus
Become the technical owner of AI at a top-tier derivatives fund, with work that directly shapes revenue-generating investment workflows.
The Company A global hedge fund specialising in derivatives and multi-asset strategies, known for its engineering strength and research-led culture. It is small enough that one senior engineer can set firmwide direction, with direct access to portfolio managers, quants and leadership.
The Role
Define the technical direction and roadmap for AI across the firm, prioritising use cases with PMs, quants and engineering.
Build production LLM products and agentic systems with multi-step reasoning and secure tool execution.
Build MCP servers and secure integrations between agents and internal data, APIs and research tools.
Own the full lifecycle: model selection, evals, observability, deployment and fail-safes.
Turn rapid prototypes into reliable production systems.
Set standards for responsible AI, and mentor engineers as the team grows.
What We’re Looking For
5+ years building and deploying production AI/ML systems as a hands-on engineer.
Strong software engineering in Python, with solid systems design.
Production experience with LLMs, agents, RAG, tool calling, and evaluation and monitoring at scale.
Experience designing or operating MCP servers or similar integration layers.
A degree in CS or a related field (MS or PhD preferred), and a track record of sustained impact in previous roles.
Nice to have: experience in high-security data environments, AI integrated with quant workflows, and knowledge of derivatives or volatility.
What’s On Offer
$155,000 to $200,000 base with an annual incentive plan. Total compensation ican exceed $300k
Technical ownership of the firm’s AI evolution.
A balance of deep engineering, applied research and strategy.
Onsite four days a week in New York or London.
H1B sponsorship is not available.
How to Apply Apply via the link or contact Tom Brammer at Harnham.
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