Backblaze External Website - Sr. Software Engineer
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Requirements
• 7+ years of professional software engineering experience, with substantial experience building and operating production backend services. • Strong experience with Java and/or Kotlin in a production environment. • Experience designing and evolving APIs and service interfaces, including compatibility, migrations, and staged rollouts. • Experience building scalable, reliable distributed systems and debugging issues in production. • Strong foundation in data modeling and relational database development, including MySQL or similar systems. • Experience with containerized development and deployment environments. • Experience with observability practices and tools for metrics, logging, and operational debugging. • Sound judgment in secure system design, access control, and backend application security fundamentals. • Demonstrated ability to lead technical work across the full software development lifecycle. • Strong written and verbal communication skills, including the ability to collaborate effectively across engineering and non-engineering partners. • Experience with Protocol Buffers and gRPC, including schema evolution and service design. • Experience with Vitess, sharded relational systems, or other large-scale SQL platforms. • Experience building identity, access management, policy, or authorization systems. • Experience working across a polyglot stack that includes backend and TypeScript-based clients and tooling. • Practical experience using AI-assisted development tools such as Cursor, Claude Code, Gemini, or similar to improve engineering productivity and code quality. • Experience mentoring engineers and influencing technical direction beyond your immediate project area.
Responsibilities
• Design, build, and evolve scalable backend services and APIs in Kotlin and Java, with strong attention to performance, reliability, and long-term maintainability. • Develop core platform capabilities, including organizational resource hierarchies and access policies. • Partner with adjacent platform and product teams to integrate with authentication, storage, billing, and other shared systems. • Write technical designs, break down ambiguous problems, and drive projects from concept through production rollout. • Own the full delivery lifecycle for the systems you build, including schema design, migrations, testing strategy, deployment, observability, and operational readiness. • Diagnose and resolve complex production issues involving distributed services, MySQL/Vitess, and cross-service dependencies. • Improve system security, correctness, and developer velocity through thoughtful design, automation, and use of modern AI-assisted engineering tools. • Contribute to engineering excellence through code review, design review, mentoring, and raising the technical bar across the team. • Collaborate cross-functionally with Product, Security, QA, Support, Finance, and other partners to translate business and operational requirements into robust technical solutions.
Benefits
• Build foundational platform and security capabilities used by customers around the world. • Work on technically meaningful problems at the intersection of cloud infrastructure, identity, authorization, and scale. • Collaborate with experienced engineers, product leaders, and security partners in a remote-first environment. • Help shape systems that are central to Backblaze’s enterprise and platform strategy. • Competitive compensation, benefits, and a culture that values thoughtful, sustainable engineering. • At this point, we hope you're feeling excited about the job description you're reading. Even if you don't meet every requirement, we still encourage you to apply. Learning, developing, and growing are key parts of our culture. We're eager to meet people who believe in our mission and can contribute to our team in various ways. We want people to feel comfortable expressing their true selves and to come, stay, and do their best work here.
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