GRATICE.IO  ·  ENGINEERING JOURNAL  ·  LINUX · SYSTEMS · FINANCE

Engineering notes
from operational systems.

Technical writing on Linux infrastructure, execution systems, financial data pipelines, and the operational software built and run in-house at Gratice.

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Linux
Native Platform
Systems
Engineering Focus
Finance
Domain
In-House
All Development
Approach
01 — Systems
02 — Clarity
03 — Ownership

Built to last.
Owned entirely.
No black boxes.

We write about software built with the same rigour applied to our own trading infrastructure. Systems designed for operational clarity, long-term maintainability, and full ownership.

We do not rely on third-party frameworks where a simpler, more robust solution exists. Complexity is a liability. These notes document what we actually build and run.

Topics

What we write about.

Notes, essays, and field observations from systems built for environments where correctness and performance are non-negotiable.

Documentation
Technical documentation ↗
gratice.io/docs
Linux Infrastructure
Kernel tuning, service design, network configuration, and reproducible environments.
Execution Systems
Order routing, FIX connectivity, latency profiling, and trading system architecture.
Data Engineering
Time-series storage, market data pipelines, ingestion and replay infrastructure.
Research Tooling
Backtesting environments, analytical infrastructure, and quantitative workflows.
Featured Writing

From the journal.

Selected notes from operational work. Written for engineers who prefer precision over abstraction.

Linux
WireGuard Overlay Networks in Practice
Peer configuration, key management, and multi-site mesh topology without a central concentrator.
Kernel
Kernel Parameter Tuning for Network Workloads
TCP buffer sizes, IRQ affinity, and scheduler settings for latency-sensitive applications.
Finance
FIX Session Management Under Operational Conditions
Reconnect logic, sequence number handling, and failure recovery in production environments.
Automation
Headless Browser Automation on Linux
Playwright and Chromium in headless environments — process management, stability, and observability.
All notes & essays →
Company
Gratice [Company Type]
[Registration Number]
Incorporated in [Country / State]
Established 202X
Registered Address
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[City, Postal Code]
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contact@gratice.io
Services
Gratice provides bespoke software engineering services on a project basis.

Services are delivered under separate written agreements with each client.
Notice
Gratice.io provides technical writing and software engineering documentation only. Nothing on this website constitutes financial advice, investment advice, or a solicitation of any kind.

All software described is developed for specific operational purposes. This website is provided for informational purposes only.