Principal Architect AI

Anaplan Inc; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Job summary

Anaplan Inc. in London is seeking a Principal AI Architect to design and lead next-generation GenAI and Agentic AI systems for enterprise planning workflows. You will shape architecture patterns, define APIs, and mentor engineering teams building production-grade AI solutions.

You will collaborate with data science and product teams to translate forecasting models into scalable, secure architectures, while ensuring observability, performance, and reliability across the platform.

Qualifications

• Deep expertise in LLM architecture, prompt engineering, and GenAI design.
• Experience designing RESTful APIs, microservices and event-driven architectures.
• Proficient in Python with PyTorch or TensorFlow and enterprise frameworks.
• Strong communication skills; able to translate complex architectures for stakeholders.
• Knowledge of Model Context Protocol (MCP) and agent communication standards.
• Experience with vector databases, RAG architectures, and semantic search.
• Familiarity with cloud platforms (AWS, Azure, GCP) and their AI services.
• Experience in SaaS or enterprise software companies.

Responsibilities

• Design GenAI and conversational AI solutions that integrate with Anaplan's planning platform.
• Develop architecture patterns and specifications for agentic systems and A2A communication frameworks.
• Design prompt engineering frameworks to optimise LLM performance for time-series forecasting and financial modelling.
• Define API contracts, data models, and integration patterns for AI-powered features.
• Evaluate AI/ML technologies for security, scalability, and reliability.
• Lead architecture reviews and mentor engineering teams implementing production AI solutions.
• Collaborate with data science to translate forecasting models into scalable architectures.
• Design observability and evaluation frameworks, including guardrails and monitoring.

Skills

LLM architecture

Prompt engineering

Python

RESTful APIs

Multi-agent systems

Communication

MCP

Vector databases

Cloud platforms

SaaS/enterprise

Tools

PyTorch

TensorFlow

LangChain

LlamaIndex

CrewAI

Haystack

Job description

At Anaplan, we are a team of innovators focused on optimizing business decision-making through our leading AI-infused scenario planning and analysis platform so our customers can outpace their competition and the market.

What unites Anaplanners across teams and geographies is our collective commitment to our customers’ success and to our Winning Culture.

Our customers rank among the who’s who in the Fortune 50. Coca-Cola, LinkedIn, Adobe, LVMH and Bayer are just a few of the 2,400+ global companies who rely on our best-in-class platform.

Our Winning Culture is the engine that drives our teams of innovators. We champion diversity of thought and ideas, we behave like leaders regardless of title, we are committed to achieving ambitious goals, and we love celebratingour wins big and small.

Supported by operating principles of being strategy-led, values-based and disciplined in execution, you’ll be inspired, connected, developed and rewarded here. Everything that makes you unique is welcome; join us and let’s build what’s next - together!

Role Overview

We're hiring a Principal AI Architect to design and architect next-generation AI solutions that transform how enterprises plan and make decisions. You'll lead the architecture for GenAI and Agentic AI systems at Anaplan, working at the intersection of cutting-edge AI capabilities and enterprise business planning workflows.

Your Impact

• Design and architect GenAI and conversational AI solutions that integrate seamlessly with Anaplan's planning platform, enabling natural language interaction and manipulation of complex dimensions, hierarchies, and business planning models.
• Develop architecture patterns and technical specifications for agentic systems and agent-to-agent (A2A) communication frameworks, allowing autonomous planning agents to collaborate, reason, and execute multi-step workflows.
• Design prompt engineering frameworks and best practices that optimise LLM performance for time-series forecasting, scenario planning, and financial modelling use cases.
• Collaborate with product and engineering teams to define API contracts, data models, and integration patterns for AI-powered features.
• Evaluate and recommend AI/ML technologies, frameworks, and models that align with enterprise requirements for security, scalability, and reliability.
• Lead architecture reviews and provide hands-on technical mentorship to engineering teams implementing production AI solutions.
• Partner with data science teams to translate complex forecasting models and machine learning algorithms into production-ready, scalable architectures.
• Design robust observability and evaluation frameworks for GenAI systems, including system guardrails, continuous monitoring, and optimisation mechanisms.

Your Skills

• Experienced background in software architecture, highlighted by a dedicated and deep focus on designing, scaling, and productionising complex AI/ML systems.
• Deep expertise in LLM architecture, prompt engineering, and GenAI application design, paired with a strong understanding of multi-agent systems and autonomous decision-making frameworks.
• Highly proficient in Python programming with hands-on experience using modern AI/ML tooling (such as PyTorch or TensorFlow) and enterprise frameworks (such as LangChain, LlamaIndex, CrewAI, or Haystack).
• A proven track record of designing RESTful APIs, microservices, and event-driven architectures to build and ship production-ready, enterprise-grade AI solutions at scale.
• Excellent communication skills with a natural ability to translate complex technical architectures and AI concepts into clear insights for diverse engineering and business stakeholders.
• Knowledge of Model Context Protocol (MCP) and agent communication standards
• Experience with vector databases, RAG architectures, and semantic search systems
• Familiarity with cloud platforms (AWS, Azure, GCP) and their AI services
• Experience in SaaS or enterprise software companies

Our Commitment to Diversity, Equity, Inclusionand Belonging (DEIB)

We believe attracting and retaining the best talent and fostering an inclusive culture strengthens our business. DEIB improves our workforce, enhances trust with our partners and customers, and drives business success. Build your career in a place where diversity, equity, inclusion and belonging aren’t just words on paper – this is what drives our innovation, it’s how we connect, and it contributes to what makes us a market leader. We believe in a hiring and working environment where all people are respected and valued, regardless of gender identity or expression, sexual orientation, religion, ethnicity, age, neurodiversity, disability status, citizenship, or any other aspect which makes people unique. We hire you for who you are, and we want you to bring your authentic self to work every day!

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform essential job functions, and receive equitable benefits and all privileges of employment. Please contact us to request accommodation.