Senior Software Engineer, B2 Object Storage & APIs

Backblaze External Website; Colombia; Remote; COP 120,000,000 - 180,000,000; Full time

Job summary

Backblaze is seeking a Sr. Software Engineer - B2 Object Storage to design, implement, and enhance APIs (B2 and S3-compatible) for a distributed storage platform used by thousands of customers globally.

You will lead technical design discussions, instrument services with metrics, and drive reliability initiatives. This role emphasizes strong Java expertise, experience with large-scale systems, and collaboration in a remote environment.

Qualifications

• 7+ years of server-side Java programming experience.
• Experience with large-scale distributed systems, including design, implementation, testing, and rollout.
• Proactive communication in a remote environment.
• Professional experience incorporating AI-assisted development tools (e.g., Gemini, Cursor, Claude Code).
• Agile and Scrum experience.

Responsibilities

• Design, implement, and maintain B2 and S3-compatible APIs to ensure correctness, performance, and backward compatibility for a large base of external customers and integrations.
• Lead technical design discussions and produce clear design documents
• Instrument services, develop metrics, define meaningful SLIs/SLOs, and drive reliability improvements.
• Actively participate in on-call rotation to help determine incident root causes and identify follow-up remediation items

Skills

Java

Distributed systems

Algorithms & data structures

AI-assisted development tools

Agile & Scrum

Remote collaboration

Job description

Backblaze is seeking a Sr. Software Engineer - B2 Object Storage to design, implement, and enhance APIs (B2 and S3-compatible) for a distributed storage platform used by thousands of customers globally.

You will lead technical design discussions, instrument services with metrics, and drive reliability initiatives. This role emphasizes strong Java expertise, experience with large-scale systems, and collaboration in a remote environment.