Principal Software Engineer, Backend

Summary

Join Byborg, a leading IT and streaming solutions company, and become a key contributor to our innovative and high-performing teams. We are seeking a passionate and experienced Backend Developer to design architectural plans, implement bug fixes, test and validate features, and contribute to automated testing. You will also mentor peers, manage cross-system projects, and optimize performance. This role requires extensive backend development experience, expertise in databases and API development, and a strong understanding of system design and concurrency. We offer a collaborative international environment where you can grow and achieve your potential.

Requirements

• Proven experience as a Backend Developer with 10+ years in professional web application development, specializing in building systems designed to handle high-load and high-concurrency traffic
• Solid experience with both relational (e.g., MySQL, PostgreSQL) and NoSQL databases, with expertise in writing optimized SQL queries
• Experience in designing and building RESTful APIs
• Practical knowledge of design patterns and event driven architectures
• Expertise in creating systems optimized for concurrency, including caching, load balancing, and horizontal scaling techniques
• Practical knowledge of Test-Driven Development (TDD) and Domain-Driven Development (DDD), with experience writing unit and integration tests
• Bachelor's degree in Software Engineering, Computer Science, or equivalent experience
• Strong analytical and pragmatic thinking
• Solution-oriented and constructive approach
• Result-driven with a "get things done" attitude
• Team player with a proactive mindset
• Willingness to learn and take ownership of products
• Maintains high professional and quality standards

Responsibilities

• Design architectural plans
• Participate in code/design reviews
• Approve PRs
• Implement bug fixes
• Test and validate features
• Contribute to automated testing
• Ensure high-quality implementations
• Maintain and improve the development pipeline
• Mentor peers
• Share expertise
• Drive technical community engagement
• Follow development lifecycles, workflows, and technical standards
• Contribute to their improvement
• Assist in troubleshooting, deployments, and releases
• Proactively support colleagues
• Help with recruitment
• Engage in self-development
• Propose improvements
• Enhance team/product quality through research and innovation
• Independently manage and deliver cross-system projects
• Make system-level decisions
• Optimize performance
• Assist in on-call duties
• Handle other tasks assigned by management

Preferred Qualifications

Strong proficiency in PHP