Sr. Software Engineer, AI
Backblaze External WebsiteResponsibilities
- Use AI-assisted development tools such as Claude Code to accelerate implementation while validating correctness, security, and performance.
- Design and build server-side APIs for user authentication, backup acceptance and management, large-scale data operations, and customer data restoration.
- Collaborate with Product, QA, and Support teams to align backend features with customer workflows and usage patterns.
- Build and maintain support tooling for diagnosing and resolving customer issues at scale.
- Ensure code and open source assets meet standards for testing, documentation, reproducibility, and developer usability.
Requirements
- At least 5 years of backend software engineering experience, ideally serving millions of users across multiple platforms.
- Proficiency in one or more backend languages such as Java, Python, or TypeScript, with the ability to learn new languages.
- Practical understanding of AI workflows including 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 practices including rigorous testing, clear documentation, and attention to security and performance.
- Strong written communication and the ability to explain technical decisions to technical and non-technical audiences.
- Cross-functional collaboration skills and a customer-focused mindset.
- Experience building or evaluating AI agents and multi-step tool-use systems is preferred.
- Experience with Cassandra or other large-scale NoSQL systems is preferred.
- Familiarity with ReactJS or other front-end frameworks is preferred.
- Prior experience with vector databases or embedding pipelines is preferred.
Benefits
- Remote-first culture supporting work-life balance
- Opportunity to build open source software used by developers worldwide
- Collaboration with experienced engineering, product, and QA teams
- Competitive compensation and benefits
Tech Stack
Categories
About Backblaze External Website
AI infrastructure runs on data. Storage gets hard at scale. We’ve been breaking, rebuilding, and improving that storage layer for 20 years. We started by building storage servers from scratch in a Palo Alto apartment to save 90% on hardware. Turns out hard constraints make for pretty good engineering. That discipline forged into a platform that performs as well or better than competitors, scales to multi-exabyte workloads, and costs a fraction of what AWS or Google charge. No blank checks or architectural sprawl. Today, the world's leading AI infrastructure providers, neoclouds, and data-intensive businesses run on Backblaze. Our platform includes: - B2 Overdrive: High-throughput object storage engineered for AI infrastructure, GPU workloads, and massive-scale data pipelines. - B2 Neo: White-label enterprise cloud storage powering neocloud platforms for AI, HPC, and media. - B2 Cloud Storage: S3-compatible object storage with predictable pricing, free egress, and no lock-in. - Computer Backup: Automatic, continuous endpoint backup for Macs and PCs. 500,000+ customers. 175 countries. Nasdaq: BLZE. backblaze.com