Senior Core Developer (Blockchain)

Location: Remote, onsite, or hybrid in Bratislava, Prague, Warsaw, or London.

Salary: €2,500 basic, negotiable.

Company

hirify.global develops cybersecurity, system development, and blockchain technology projects.

What you will do

• Develop, optimize, and maintain system-level applications and core libraries using C, C++, and Rust.
• Work on blockchain technology, including protocol design, smart contract implementation, and consensus algorithm enhancement where applicable.
• Profile complex systems, identify performance bottlenecks, and improve resource utilization, robustness, scalability, and security.
• Lead core development initiatives, mentor junior developers, and maintain software quality standards.
• Research system development and blockchain trends, experiment with new technologies, and collaborate with developers, product managers, and stakeholders.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.
• 5+ years of experience in system-level programming with C, C++, and Rust.
• Experience with low-level architecture, algorithms, and data structures.
• Experience or strong interest in blockchain technology and decentralized systems.
• Proficiency in multithreading, real-time systems, and network programming.
• Strong problem-solving skills and the ability to work on complex, cross-functional projects.

Nice to have

• Direct involvement in blockchain projects, including DLTs, cryptocurrencies, or smart contracts.
• Contributions to open-source projects, especially in system programming or blockchain.
• Familiarity with cryptographic protocols and security-driven development.
• Experience with other system programming languages or frameworks.

Culture & Benefits

• Dynamic, forward-thinking environment with innovators and industry experts.
• Opportunities to work on leading-edge blockchain and system development projects.
• Support for continuous learning, professional development, and collaborative research.
• Remote, onsite, and hybrid work options.

Hiring process

• Submit a detailed CV, cover letter, and relevant coding portfolios or links to previous work.
• The process may include technical interviews, coding tests, and problem-solving assessments.