Principal Software Engineer, AI Platform Team - Europe Remote in City of London

Join to apply for the Principal Software Engineer, AI Platform Team - Europe Remote role at Vista.

About the Team

AI Engineering is a new team being formed here at VistaPrint to help drive enablement and adoption of Generative AI capabilities as well as build foundational primitives to help unlock productivity across the entire business. Engineers on this team will be leading the way for innovation in GenAI by building capabilities at scale across all of our teams, including MCP capabilities, LLM infrastructure, observability, and agentic tooling.

What You Will Do

• Lead a newly formed team of AI Engineers driving strategic design, adoption and implementation of large‑scale GenAI initiatives.
• Build and scale reusable platform components such as AI Gateways, Python and TypeScript SDKs, MCP capabilities, RAG pipelines, LLM frameworks, vector databases, and other primitives that enable teams to build GenAI applications at scale with excellent tooling.
• Create and influence engineering‑wide standards for GenAI, partnering with existing Engineering teams to promote adoption.
• Build and launch reusable automation workflow capabilities company‑wide to transform GenAI adoption across all business functions.

Your Qualifications

• Proven expertise in developing and scaling GenAI applications in production using modern frameworks such as LlamaIndex or Langraph that leverage RAG, Multi‑Agent, or similar architectures.
• Strong understanding of the advantages and limitations of different LLM models and providers to guide optimal integration into applications.
• 8+ years of experience building web‑based applications in Python, Node, TypeScript, or Go at scale in production.
• Deep understanding of GenAI primitives like vector databases, memory, semantic search, hybrid search, agentic workflows and patterns, MCP, A2A.
• Ability to drive a long‑term technical roadmap, establish standards, and evangelize those standards engineering‑wide.
• Knowledge of building, scaling, and deploying applications in AWS using systems such as ECS, Fargate, and EKS, ideally with IaC.
• Experience integrating the AWS Bedrock ecosystem of tools into GenAI applications—Bedrock, Guardrails, Evaluations, and Agents.
• Strong communication skills and ability to partner with other Engineering leaders.

Nice to Have

• Ability to build and scale organization‑wide GenAI evaluation frameworks to help teams understand the efficacy of their applications.
• Implementation of LLM observability tools.
• Experience building and integrating MCP servers into AI applications, especially with AuthZ and AuthN requirements.

Why You'll Love Working Here

VistaPrint is an award‑winning remote‑first company. We’re an inclusive community growing, and we have Vista Behaviors that exemplify the behavioral attributes that make us a culturally strong and high‑performing team.

About Us

VistaPrint is the design and marketing partner to millions of small businesses worldwide. For over 20 years we have delivered solutions that meet evolving needs, making marketing and design accessible to every small business owner.

Commitment to Diversity, Equity, & Inclusion

We believe in the unique contributions of everyone within a diverse global organization. We strive to model and live an inclusive culture of fairness, respect, and belonging for all.

Equal Opportunity Employer

VistaPrint, a Cimpress company, is an Equal Employment Opportunity Employer. All qualified candidates will receive consideration for employment without regard to race, color, sex, national or ethnic origin, nationality, age, religion, citizenship, disability, medical condition, sexual orientation, gender identity, gender presentation, legal or preferred name, marital status, pregnancy, family structure, veteran status or any other basis protected by human rights laws or regulations. This list is not exhaustive.