Senior C++ Developer/ Engineer

Senior C++ Software Engineer

Global Data Transfer & High-Performance Systems | U.S. Tech Company

As BestHR (employment agency no. 11671), we are partnering with a highly respected U.S. technology company that builds mission-critical software enabling secure, high-speed, and reliable transfer of digital assets. Their solutions are trusted by leading global brands across multiple industries.

If you want to work on extremely high-performance systems operating at massive scale—this role is for you.

Your Responsibilities

• Develop new features for a high-performance enterprise application (billions of files, tens of Gbps throughput)

• Work end-to-end: concept → PoC → implementation → production release

• Create automated tests (unit + functional)

• Support customers and internal teams in solving complex product issues

Requirements

• Strong experience in large-scale C++ development (Windows and/or Linux)

• Cross-platform development (Windows/Linux); macOS is a plus

• Proficiency with debugging/profiling tools (Win/Linux)

• Solid knowledge: C++11/14/17/20

• Experience with automated testing

• Background in high-performance systems (large object sets, heavy network load, CPU/RAM-critical operations)

• Knowledge of low-level OS APIs (Windows, POSIX) – networking, filesystems, security, multithreading

• Basic understanding of networking protocols and cryptography

• Very good English

Nice to Have

• Kernel-level development (Windows/Linux)

• Experience with FUSE or similar FS frameworks

• Familiarity with AWS/Azure/GCP APIs

We Offer

• UoP or B2B – long-term cooperation

• Attractive salary

• Multisport

• Medicover

• E-learning platforms

• Supportive, technical environment