Backblaze External Website - Software Engineer, AI

• Use AI-assisted development tools, including Claude Code, to accelerate implementation while validating correctness, security, and performance. • Design and build server-side APIs that authenticate users, accept and manage backups, handle large-scale data operations, and prepare restored data for customers across our global user base. • Collaborate with Product, QA, and Support teams to ensure both backend features reflect real customer workflows and usage patterns. • Build and maintain support tooling to help diagnose and resolve customer issues at scale. • Ensure all code and open source assets meet high standards for testing, documentation, reproducibility, and developer usability. • Tools and Technologies • AI coding agents such as Claude Code, Cursor, Codex, and Antigravity • Languages: Python, TypeScript, Go, JavaScript, Java (and other languages common in the open source ecosystem) • Backblaze B2 SDKs and REST APIs • Open source AI frameworks and tooling (e.g. LangChain, LlamaIndex, vector databases) • SQL and NoSQL backend development (experience with large-scale distributed databases a plus) • GitHub, pytest, CI/CD pipelines • Large-scale server infrastructure (Linux, cross-platform awareness) • The Right Fit: • The Right Fit: • 2+ years of backend software engineering experience, ideally on systems that serve millions of users across multiple platforms. • Proficiency in one or more backend languages (Java, Python, TypeScript, or similar); comfortable picking up new languages as needed. • Practical understanding of AI workflows — data ingestion, preprocessing, inference, and agent-based orchestration. • Experience building or working with large-scale APIs and distributed storage or data systems. • Production-quality coding habits: rigorous testing, clear documentation, and attention to security and performance. • Customer-focused mindset — you think about the developer and end-user experience in everything you build. • Strong written communication skills; you can explain technical decisions clearly to both engineers and non-engineers. • Good attitude, cross-functional collaboration skills, and a genuine desire to work in a fast-paced environment with evolving requirements.