Senior Developer - AI Platform

About MariaDB MariaDB is making a big impact on the world. Whether you’re checking your bank account, buying a coffee, shopping online, making a phone call, listening to music, taking out a loan or ordering takeout – MariaDB is the backbone of applications used everyday. Companies small and large, including 75% of the Fortune 500, run MariaDB, touching the lives of billions of people. With massive reach through Linux distributions, enterprise deployments and public clouds, MariaDB is uniquely positioned as the leading database for modern application development. The Opportunity About the Role We are looking for a Senior Developer to join a small, high-ownership team building next-generation AI capabilities on top of a widely deployed relational database engine. You will design and implement the application layers, business logic, and API workflows that sit at the intersection of data management, AI applications, and relational database operations—components that enterprise AI applications depend on for correctness, performance, and governance. This is a hands-on, end-to-end role. You will go from whiteboard to production: owning the implementation of the features you build, writing clean and scalable application code, integrating AI orchestrators, and ensuring robust deployment across cloud and on-premises environments. The team is small by design, which means high individual impact and direct visibility into product and engineering strategy. The ideal candidate has worked across multiple cloud providers, has deep experience building with modern AI agent frameworks, and approaches every feature with an ownership mindset — shipping things that work in production, not just in demos. Key Responsibilities End-to-End Feature Development: Lead the full software development lifecycle—from application design and API implementation to deployment and feature monitoring. AI & Agent Integration: Connect production applications with agent frameworks (e.g., LangChain) and interoperability protocols (e.g., MCP, A2A) to support scalable, framework-agnostic APIs. Database & Data Management: Develop secure, versioned application data models that enforce multi-tenant isolation, auditability, and data classification using advanced relational database features. Multi-Cloud & Deployment: Build application services that deploy consistently across AWS, Azure, GCP, and on-premises environments, while utilizing automated CI/CD pipelines. Application Performance: Define and meet feature-level performance goals through rigorous query optimization, code profiling, caching strategies, and proactive security practices. Leadership & Collaboration: Maintain full ownership of application components, facilitate constructive design and code reviews, mentor team members, and drive decisions in an async-first environment. Required Qualifications Experience 7+ years of professional software development experience, with at least 2 years focused on data-intensive applications, database-adjacent features, or enterprise software. Demonstrated end-to-end ownership of a non-trivial production feature or module: you have taken something from functional specification through implementation to production. Hands-on production experience deploying, debugging, and managing application services across at least two major public clouds (AWS, Azure, GCP). Experience building or integrating with vector databases, embedding pipelines, semantic search, or retrieval-augmented generation (RAG) systems. Prior work building LLM-based applications or workflows using AI agent frameworks (LangChain, LangGraph, CrewAI, AutoGen, or equivalent). Technical Skills Strong proficiency in Python for AI application development, alongside high proficiency in at least one backend language (such as Go, Java, or C++). Deep, practical application of relational databases: writing complex SQL, structural indexing, query optimization, transactions, and schema design. Experience implementing temporal data m…