At Sitecore, our mission is to simplify how brands reach, engage, and serve people by delivering intelligent, personalised digital experiences that connect the world. We empower the world’s most iconic brands to build lifelong relationships with their customers—seamlessly, smartly, and at scale.

As the leading provider of agentic digital experience software, Sitecore brings together content, commerce, and data into one composable platform that enables brands to deliver millions of meaningful, adaptive experiences every day. Trusted by global leaders such as American Express, Porsche, Starbucks, and L’Oréal, Sitecore helps brands transform engagement through experiences that are not only personalised but predictive and dynamic.

Our foundation is our people—a diverse, passionate, and collaborative global team spanning over 25 countries. We believe that every experience matters, and that belief starts with how we work together. Our values guide how we lead, innovate, and connect. They are the behaviours that bring our mission and vision to life, every day, in every interaction.

As we continue to evolve, we are actively cultivating AI skills across our teams to unlock new levels of creativity, efficiency, and insight. From engineering to customer experience, AI capabilities are becoming integral to how we design, build, and deliver the next generation of digital experiences.

Learn more at Sitecore.com.

About the Role:

We are seeking a Python Backend Engineer to build and maintain AI-powered backend services across the Sitecore platform. You will work with LLM integrations, agentic workflows, RAG pipelines, and contribute to production‑grade generative AI systems that power intelligent digital experiences. You will operate in an AI-driven environment, leveraging copilots and intelligent agents to accelerate development and workflows.

What You’ll Do:

Develop and productionize LLM pipelines, including retrieval, orchestration, prompt strategies, and semantic processing.
Implement and maintain RAG pipelines, embeddings generation, and vector search capabilities.
Build resilient backend services and APIs supporting AI-driven platform features in a multitenant environment.
Contribute to evaluation frameworks measuring accuracy, relevance, and trustworthiness of AI outputs.
Leverage copilots and intelligent agents to automate workflows, code tasks, and operational processes.
Work with agentic frameworks (e.g., LangChain, LangGraph, AI Foundry, or similar) to design and execute multi-step AI workflows.
Contribute to backend capabilities that integrate with MCP-based tooling and structured AI action frameworks.
Ensure system scalability, cloud-native robustness, and adherence to engineering best practices.

What You Need to Succeed:

Strong experience developing backend systems using Python.
Hands-on experience building generative AI applications using LLMs.
Experience with RAG, embeddings, vector stores, and semantic retrieval.
Familiarity with evaluation techniques for LLM outputs.
Experience with FastAPI, Flask, Pydantic, or related frameworks.
Experience with Azure, Docker, Kubernetes, and CI/CD pipelines.
Familiarity with relational and non-relational databases.
Understanding of agentic systems and orchestration patterns.
Awareness of working with multitenant AI platforms and isolated tenant workloads.

Additional Skills That Could Set You Apart:

Experience with knowledge graphs, ontologies, or taxonomy-driven retrieval.
Experience with fine‑tuning or optimizing LLMs.
Awareness of AI safety, responsible AI practices, or safety guardrail implementation.
Experience building solutions on Azure or AWS.
Background in contextual help, AI assistants, or automation-focused AI solutions.

Why You Should Click ‘Apply’:

Sales and Customer Success are the key to our success! We are tapping into an exciting $30B market opportunity that is still very much in its infancy and feel it’s never been a better time to join Sitecore as we look to grow by 30% YoY. Growth for us means growth for you and your career.
Great team and company culture! You can find out more about our company culture in the Sales and Customer Success team and our commitment to creating a diverse and inclusive workplace, on our YouTube Channel. Thanks to the work of every employee globally, Sitecore has been recognised for award-winning Culture by Comparably.

Equal Opportunities at Sitecore

Sitecore is proud to be an equal opportunity workplace. We are committed to equal employment opportunity without unlawful regard to race, colour, ancestry, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability, veteran status or any other local legally protected characteristic.

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