We are seeking a highly skilled and motivated Senior C Developer with expertise in DNS to join our dynamic team.

This role involves working on a high-impact project to enhance and modernize DNS server infrastructure. The ideal candidate will possess strong systems programming skills, in-depth knowledge of networking protocols, and a passion for solving complex technical challenges.

Responsibilities

• Design, develop, and implement enhancements to DNS server software with a focus on performance, scalability, and reliability
• Refactor and optimize existing codebases to improve maintainability and efficiency
• Collaborate with cross-functional teams to define technical specifications and project requirements
• Develop new DNS features and extensions that adhere to industry standards such as DNSSEC, EDNS(0), and IPv6
• Debug and resolve software issues, including performance bottlenecks and challenging edge cases
• Write high-quality, well-documented C code that complies with best practices and coding standards
• Perform comprehensive testing, including unit, integration, and system-level testing, to ensure robust DNS server functionality
• Stay up-to-date with advancements in DNS technology and networking protocols
• Participate in code reviews and provide constructive feedback to team members

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience
• Minimum of 3 years of relevant experience
• Strong proficiency in C programming with expertise in systems-level programming
• Solid understanding of DNS concepts, protocols, and architecture
• Experience with networking protocols such as TCP/IP and UDP, as well as network programming
• Familiarity with Linux/Unix development environments
• Excellent debugging and problem-solving skills, including experience with tools like gdb and valgrind
• Ability to work independently and collaboratively in a fast-paced environment
• Fluent English skills (written and spoken) at a B2+ level or higher

Nice to have

• Familiarity with ISC Bind or similar DNS server software
• Knowledge of advanced DNS features such as DNSSEC, EDNS(0), or zone transfers
• Familiarity with IPv6 and its implications for DNS
• Experience with multi-threaded programming and concurrency
• Understanding of software security principles and best practices
• Experience with scripting languages such as Python or Bash for automation and testing
• Exposure to open-source development practices and tools like Git and Jenkins

We offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn