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Senior Backend Engineer (Python)

Nevis· Engineering & Product
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LondonFull-timePosted 3mo ago

About the role

Senior Backend Engineer (Python) at Nevis building the world’s first AI wealth management platform. You design and implement Python systems, services, and orchestration layers to accelerate AI development, working across applied AI, data pipelines, model execution frameworks, and backend components that support AI products.

Responsibilities

  • Build and evolve Nevis’ Python-based AI platform, powering core workflows and agentic automation.
  • Develop model orchestration, data processing pipelines, retrieval systems, and execution runtimes for applied AI features.
  • Create scalable APIs, services, and internal tools enabling rapid development, evaluation, and deployment of AI systems.
  • Architect robust systems for model inference, prompt execution, vector retrieval, and multi-step agent reasoning.
  • Maintain high engineering standards through clean code, testing, observability, and CI/CD.
  • Collaborate closely with AI engineers, product managers, and designers to ship features used by thousands of clients.
  • Own greenfield AI platform components from architecture through production rollout.
  • Participate in design reviews, code reviews, and technical debates that shape the future of Nevis’ technical direction.

Qualifications

  • 4+ years of experience in Python engineering, ideally building AI platforms, ML infrastructure, or applied AI products.
  • Deep expertise in Python, asynchronous programming, system design, and backend engineering fundamentals.
  • Hands-on experience building production systems involving: LLM orchestration or agent frameworks (Pydantic, LangChain, custom orchestration); Data pipelines, ETL, embeddings, or vector search; Retrieval-augmented generation (RAG) or model-backed workflows; High-performance APIs and distributed services.
  • Strong understanding of modern cloud environments (AWS preferred).
  • Solid foundation in computer science, distributed systems, or related fields.
  • Fast learner with a bias for action and a strong ownership mindset.
  • Excellent communication and collaboration skills.
  • Comfortable operating in a fast-paced, high-growth environment.

Skills

Required:Python programmingLLM orchestration / agent frameworksData pipelines / ETL / embeddings / vector searchRetrieval-augmented generation (RAG)APIs and distributed servicesCloud environments (AWS)System design / distributed systemsCommunication & collaboration

Benefits

  • 25 days’ annual leave.
  • Private medical insurance.
  • Competitive salary and benefits, including company equity.
Last updated Aug 12, 2026. Interested? Apply on the company site.

About Nevis

Nevis - The AI platform for wealth management

AI that helps financial advisors grow and spend more time with clients

AIWealth managementfinancial advisorsheadline-ai-europe-100-2026system-builderswealth management AI
Company profileWebsite

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