Senior Backend Developer (Security Application)
Overview
We are hiring a senior-level Backend Developer to join the core technical team for a newly restructured security-focused application. This is a high-ownership, long-term role. The ideal candidate is experienced, fast-moving, reliable under pressure, and able to handle both architectural complexity and urgent operational needs.
Responsibilities
• Develop and maintain backend infrastructure for a multi-layer security application
• Build scalable and reliable APIs, integrations, and backend logic
• Troubleshoot and resolve backend issues quickly (critical response mindset)
• Participate in backend architecture discussions and feature planning
• Work closely with the founder, senior consultants, and product direction
• Optimize for performance, security, reliability, and stability
• Produce clean, testable, well-documented code suitable for long-term scaling
Requirements
• 5 to 10+ years backend development experience
• Strong background in security systems, networking, or high-pressure environments
• Ability to rapidly diagnose and fix backend production issues
• Strong communication, discipline, and problem-solving skills
• Proficiency with backend languages such as Node.js, Golang, or Python
• Experience with cloud infrastructure (AWS preferred)
• Independent, proactive, and able to handle urgent shifting priorities
• Ukraine-based preferred (timezone alignment and strong engineering culture)
Nice to Have
• Experience with VPN technology, encryption, authentication, or security workflows
• Familiarity with frontend technologies for cross-functional collaboration
• Experience working with technical advisors or senior consultants
Compensation
• Competitive; based on seniority and long-term alignment
Required skills experience
| Back end | |
| Node.js | |
| AWS | |
| Networking | |
| Troubleshooting |
Required domain experience
| Security | 3 years |
Required languages
| English | B2 - Upper Intermediate |
| Ukrainian | C2 - Proficient |