Overview Backblaze is the object storage leader in the open cloud movement. We design cloud storage to unlock budgets, unburden administrators, and unleash innovators. Founded in 2007, Backblaze serves 500K+ customers in 175+ countries. We are seeking a Sr. Software Engineer to join our Engineering team. You will design, build, and maintain backend systems and APIs that power our core product at scale. You will contribute to new features, improve reliability and performance, and build tooling that helps the broader team move faster and solve customer problems. AI-assisted and agentic coding tools are a normal part of how we work; you should use them fluently and exercise good judgment about when and how to apply them. The Right Fit 10+ years of Java development in an enterprise environment (personal project work not included) Proficient in server-side Java programming; Apache Tomcat experience a plus Strong SQL and relational database skills Experience building or maintaining systems at scale: thousands of servers, millions of customers Some experience with agentic AI coding tools (Claude Code, Codex, Cursor, or similar) — used regularly, not just dabbled with Cross-platform comfort (Linux/macOS/Windows) — no need to be an expert on all three, but not afraid of any Bonus Points For Experience with clustered MySQL systems Python experience, either scripting, tooling, or data work JavaScript and/or ReactJS Experience with Struts or JSPs Looking For An Attitude Of Passionate about building high performance and scalable code with easy to use interfaces and APIs. Likes to work closely with other engineers, support, and sales to help customers. Believes the whole world needs backup, not just English speakers in the USA. Customer Focused — always focus on the customer’s point of view and how to solve their problem! At Backblaze, we value being fair and good to our customers, partners, and employees. We are committed to fostering a workforce where all employees feel a sense of belonging regardless of race, ethnicity, nationality, gender, sexual orientation, age, religion, socio-economic status, ability, veteran status, and education. We are proud to be an Equal Opportunity Employer. To understand more about the data we collect and process as part of your application, please view our Backblaze Employee Privacy Notice. #J-18808-Ljbffr