DATA FIDELIS SERVICES

HONG KONG (SAR) • C++17 / C++20 / C++23 HIGH-PERFORMANCE SYSTEMS FOR HFT & INSURANCE
Business Activities (Software Services Only)

We build systems that survive market open, not just compile. Quant infrastructure — hardened for Trading Desks and HK insurers. Direct principal engagement from design to production cutover, with MSA-ready delivery, audit logs, runbooks, and on-prem / VPC deployment options.

  • •Low-latency trading infrastructure consulting — C++17 / C++20 / C++23, Python, Linux 6.8 low-latency, kernel bypass (AF_XDP, DPDK-ready), SPSC / MPSC lock-free queues, cache-line alignment, NUMA-aware allocation.
  • •Market connectivity — Feed handlers (HKEX OMD-C / OMD-D, multicast 239.1.1.1:5000), order routers, FIX 4.2/4.4/5.0SP2 protocol, drop-copy recon, sequence gap detection, resilient failover.
  • •Exchange integration, performance optimization, latency measurement — p50/p90/p99/p99.9 instrumentation, CPU pinning, isolated cores, hardware timestamps, flame graphs, Latitude 7480 validated.
  • •Custom software development for capital markets — Greenfield fabric, claim integrity pipelines (SFC Type 9 MSA ready), volatility surface & gamma scalping engines, FPGA-ready hooks.
Production Focus
C++17, C++20 and beyond — High-Performance Systems for HFT & Insurance
Modern C++ from C++17 to C++20 / C++23: concepts, coroutines-ready, constexpr, lock-free, PMR allocators, zero-deps.
Featured Metric
0.40µs
p99 HKEX OMD-C
2.04M/s
ticks/sec • C++20

Selected Systems — All Public GitHub

● 3 PUBLIC repos • MIT • Open Source
01 • hkex-omdc-fabric.cpp — HKEX OMD-C Market Data Fabric (NEW) • C++20 / C++23 • TOP
PUBLIC • p99 0.40us • 2.04M ticks/sec • C++20 • PROD

HKEX OMD-C Low-Latency Fabric — Greenfield, Open Source

Production-grade UDP multicast fabric for HKEX OMD-C 239.1.1.1:5000. Built with C++20 concepts, SPSC lock-free ring, AF_XDP socket, cache-line padding. Open source for reviewable, extensible desk-specific alphas — validates at p99 0.40µs on commodity Latitude 7480, 10× faster than typical 5µs HFT target. MSA-ready with audit logs, runbooks, deterministic replay, MIT licensed.

Performance — Latitude 7480, GNU 13.3.0, 1M ticks, C++20 -O3 -fltobench_omdc_fabric
p50
0.17us
p90
0.20us
p99
0.40us
p99.9
0.91us
max
51.62us
throughput
2038k/s
GitHub — PUBLIC • MIT • C++20/23
github.com/nsmanju/hkex-omdc-fabric

Build: cmake -O3 -flto -march=native
Stack: C++20 • SPSC • AF_XDP • cache-aligned • PMR
License: MIT • Public

02 • hk_claimsentry.cpp — Insurance Claims Integrity • C++17 / C++20 • PUBLIC
PUBLIC • 500K/sec • ML • PROD • MIT

HK-ClaimSentry 500K/sec — Real-time claims fraud & duplicate detection

Regex + embeddings hybrid pipeline with ONNX inference, RocksDB dedup store, Kafka streaming, and SFC Type 9 MSA audit trail. p99 < 8ms at 500K claims/sec. Designed for HK insurers requiring explainable fraud rules + ML hybrid with deterministic replay, runbooks, and on-prem/VPC deploy. Open source, MIT, production-hardened for market open survival.

stack: C++17 / C++20 / C++23 • ONNX • RocksDB • Kafka • Linux 6.8 low-latency • lock-free • audit trail • MIT
GitHub — PUBLIC • MIT • Open Source
github.com/nsmanju/hk-claimsentry

SFC Type 9 MSA audit ready
500K claims/sec • p99 <8ms • PUBLIC

03 • hft_straddle.cpp — Straddle Mispricing Engine • C++17 / C++20 • PUBLIC
PUBLIC • 1.2M ticks/sec • HFT • MIT • FPGA-ready

HFT Straddle — Volatility surface & gamma scalping

Sub-ms order book reconstruction, IV surface arbitrage, real-time gamma calculation with lock-free queues and kernel bypass. < 1.2ms p99 tick-to-signal. Built for prop desks & family offices running volatility arbitrage with FPGA-ready hooks, zero-deps deploy, and deterministic replay. Open source, MIT, C++17 to C++20/23, cache-aware, NUMA-aware.

stack: C++17 / C++20 / C++23 • FPGA-ready • lock-free queues • kernel bypass • IV surface • gamma scalping • MIT • PUBLIC
GitHub — PUBLIC • MIT • Open Source
github.com/nsmanju/hft-straddle-engine

Prop desks & family offices
Sub-ms recon • <1.2ms p99 • PUBLIC

Chief Consultant
MANJUNATH, Nadkalpur Shivabasavanna
ORGData Fidelis Services
LOCHong Kong (SAR)
EMAILbilling@datafidelis.com
PHONE+852 5783 0107, WhatsApp
20y+ market systems, trading infra, HKEX connectivity, SFC MSA, low-latency C++17/C++20/C++23. Direct principal — no bench, no handoff. All repos PUBLIC, MIT, open source.
Why Data Fidelis

We build systems that survive market open, not just compile. Quant infra — hardened for Trading Desks and HK insurers. All public, reviewable.

  • • MSA-ready contracts • Audit logs • Runbooks • On-prem / VPC deploy
  • • Hong Kong • C++17 / C++20 / C++23 / Linux • Low-latency • Zero-deps • Static HTML • PUBLIC MIT
  • • Direct principal: MANJUNATH Nadkalpur — 20y+ market systems, all repos PUBLIC
Focus
C++17, C++20 and beyond — High-Performance Systems for HFT & Insurance — All PUBLIC