Senior Software Engineer

Defendify is hiring a Senior Software Engineer to build and maintain its cybersecurity platform. The role owns features end to end across backend services, frontend development, integrations, data pipelines, and infrastructure, with a focus on secure, reliable production software.

Responsibilities:

• Architect, build, and ship features across our platform, with a focus on backend services, automation, and systems, while contributing across the stack as needed
• Build and maintain integrations with external services
• Design and deliver secure, well-tested, maintainable code, with the rigor and care expected of a cybersecurity platform
• Investigate and resolve production issues, participate in on-call support, and help strengthen monitoring and reliability
• Improve the systems you work in, whether that means better tests, cleaner interfaces, stronger observability, or simpler operations
• Participate in architectural decisions, code review, and planning

Requirements:

• Have 5+ years of professional, hands-on software engineering experience designing, building, shipping, and maintaining production software and systems
• Are strong in at least one of Go or Node.js and willing to work across both
• Have meaningful experience with relational databases, particularly PostgreSQL
• Are comfortable with infrastructure and operations, not just application code
• Communicate well in writing and think clearly about technical tradeoffs
• Approach security thoughtfully, especially if you have worked in a security-adjacent domain
• Use modern development tools, including AI-assisted workflows, as a natural part of how you work
• preference for U.S.-based candidates who can visit our Portland, Maine headquarters occasionally for collaboration and team activities