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Fiverr Pro
English
$
USD
I will build fast c cpp cli tools, file parsers and system daemons
Syed Rehan
About this gig
Got large files, repetitive processing jobs, or a system task that needs more than a quick script?
I build focused C/C++ native tools for file processing, command-line automation, and long-running system workloads.
What I can build:
- File & Log Parsers Parse text, logs, CSV, binary, or custom documented formats
- CLI & Batch Tools Process files, folders, records, and repetitive workflows
- Linux Daemons & Services Background workers, watchers, and unattended processes
- System Utilities Monitoring, automation, and OS-level integrations where required
Why native C/C++?
- Fast, predictable performance for demanding workloads
- Standalone native executables with minimal deployment overhead
- Direct access to POSIX, Win32, filesystem, process, and system APIs when needed
You receive: clean source code, build instructions, usage examples, and tested sample output.
If Python or another simpler solution genuinely fits your problem better, Ill tell you before recommending unnecessary native development.
For daemons, existing codebases, or unusual file formats, please message me before ordering.
Get to know Syed Rehan
Syed Rehan
Low Level Systems and Performance Engineer
- FromPakistan
- Member sinceJun 2023
- Avg. response time4 hours
Languages
Urdu, English
I build and optimize performance-critical software in C, C++ and Rust, with a focus on low latency, memory efficiency and measurable results.
My work covers profiling and hot-path optimization, cache-aware code, SIMD, multithreading, native extensions, networking and low-level debugging.
I work from evidence: benchmark first, isolate the bottleneck, make targeted changes, then verify correctness with tests, sanitizers and reproducible before/after measurements.
Deliverables are clean, documented and ready to review in Git.
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FAQ
My files are undocumented or in a proprietary binary format — can you still work with them?
That may need a short reverse-engineering pass first. I'll tell you upfront if that's the case, scope it separately, and quote it before any work starts — no surprise charges mid-order.
Which platforms do you support?
Linux, Windows, and macOS. Cross-platform builds are available on request. Tell me your target and I'll confirm compatibility with your specific environment before you order.
Do I get the source code?
Yes — complete, commented source with working build instructions, fully owned by you on delivery. No licensing fees, no attribution required, no strings attached.
Can the tool run as a background service?
Yes, on the Premium tier. I set it up as a proper daemon or Windows service with clean startup, shutdown, and logging — not a script left running in a terminal.
Can you work with my existing C or C++ codebase?
Yes. I can build a new utility around an existing library/codebase or integrate the tool with your current native project. Send a brief overview of the codebase and required integration before ordering.
Can you process very large files without loading everything into memory?
Yes. Where appropriate, I can use streaming, buffered or chunked processing so large files can be handled efficiently without keeping the entire dataset in memory.
