Senior C++ Engineer $$$$ Offline

Summary:
Senior C++ engineer (6+ years) experienced in maintaining and refactoring legacy (pre-C++11) code bases for logistics and shipping platforms. Strong in debugging, profiling, and ensuring system stability under SLA constraints. Comfortable with US time overlap and technical communication in English (B2+).
 

Technical Skills:

• Languages: C++ 98/03/11, STL, Boost
• Legacy & OS: Win32, MFC, COM, POSIX IPC
• Networking: TCP/UDP, HTTP(S), OpenSSL/SChannel, socket programming
• Data formats: XML, JSON, custom binary formats
• Integration: EDI (X12/EDIFACT), FedEx/UPS/DHL/USPS APIs, ZPL/EPL label generation
• DB & Tools: MySQL, PostgreSQL, ODBC, Redis, ELK, syslog, Prometheus
• Debug & Perf: WinDbg, gdb, Valgrind, AddressSanitizer, Perf, Process Monitor
• Toolchains: Visual Studio 2008–2019, CMake, GCC 4.x–12.x
• Other: Docker (CI), basic Kubernetes, PCI-DSS / SSL cert management
   

Key Responsibilities:

• Maintain and evolve legacy modules (pre-C++11) for parcel tracking and rate calculation.
• Investigate production incidents, prepare RCA and safe hotfixes under SLA.
• Perform safe refactorings using seams and characterization tests.
• Profile and optimize memory usage and multithreading performance.
• Integrate external carrier APIs (FedEx, UPS, DHL) and document interfaces.
• Communicate daily with US team (ET timezone overlap 4–6 hours).
   

Bonus Experience:

• Migration from VS2008/2010 to modern toolchains.
• ZPL label templates and barcode generation (Code128/QR).
• Security / Compliance (PII, PCI-DSS).
   

Availability:
Part-time (15–20 hours per week), with 4–6 hour daily overlap with US (ET/PT).