Full-Stack Engineering, Battle-Tested
From real-time trading platforms to AI-driven forecasting engines — we build production-grade systems that handle real workloads, real money, and real complexity.
End-to-End Solutions
From APIs to AI — we deliver production-grade software that handles real workloads, not just demos.
Full-Stack Applications
Web and mobile applications with clean architecture — from database to deployment. Dashboards, portals, APIs, and everything in between.
AI & Machine Learning
Custom models trained on your data and wired into your workflows. Forecasting, document processing, anomaly detection, and LLM integrations that actually run in production.
Data & Analytics
Live dashboards, automated reporting, and data pipelines. Your team gets real-time visibility without touching a spreadsheet.
Automation & Integrations
Connecting your existing systems — automated workflows, scheduled jobs, and data sync that replace manual processes.
Terminal & Developer Tooling
Command-line tools and terminal interfaces for power users. Real-time data feeds, keyboard-driven workflows, and multi-pane layouts.
Security & Compliance
Purpose-built for industries where security is a requirement, not a preference. Encrypted communications, secure infrastructure, and systems designed to protect what matters.
Proven in Production
Real systems handling real workloads. Every project below is deployed, tested, and built to last.
Energy Trading Platform
A complete energy trading platform for the ERCOT wholesale electricity market — from real-time market data ingestion via SOAP/WS-Security APIs to a terminal-based trading desk with tmux-style pane management.
Key Results
- Eliminated manual trade entry — sub-second execution
- 56+ live market data feeds integrated
- 17 transaction types fully automated end-to-end
- Complete ERCOT EIS v2.00 compliance from day one
Fund Management Portal
An investor portal and fund administration platform with NAV integration across 45+ API endpoints. Real-time P&L reporting, credit facility tracking, and automated investor communications.
Key Results
- Replaced manual spreadsheet reporting with live dashboards
- 45+ fund accounting endpoints integrated in one client
- Real-time portfolio & AUM visibility for investors
- Eliminated hours of weekly manual reconciliation
E-Commerce Marketplace
A full marketplace platform tailored for the Nicaraguan cash economy — dual currency (NIO/USD), E2E encrypted messaging, mobile payments integration, reputation system, and complete Spanish i18n.
Key Results
- Dual currency checkout serving an underbanked market
- E2E encrypted messaging — zero data exposure
- Mobile-first PWA with full offline support
- Complete Spanish i18n for Central American users
Secure Communications Platform
An encrypted terminal-based chat platform using the Signal Protocol (X3DH key exchange + Double Ratchet). Zero-knowledge server architecture with mutual TLS via internal PKI — the server can never read messages.
Key Results
- Zero-knowledge architecture — server never sees plaintext
- Signal Protocol encryption with forward secrecy
- Internal PKI with mutual TLS — no external trust anchors
- Passed internal threat model and security audit
Energy Price Forecasting Engine
Machine learning models that predict wholesale energy prices — trained on live market data and wired directly into trading workflows to generate actionable signals.
Key Results
- Generates live buy/sell signals from price predictions
- Models retrain automatically on incoming market data
- Confidence-scored forecasts for risk-aware decision making
- Directly integrated into production trading systems
We Eat Our Own Cooking
Grand Oak Software is the software arm of a real trading operation. We built our own energy trading platform, fund management portal, and secure communications system — not as portfolio pieces, but because we needed them to work.
That same rigor goes into every client project. We don’t build throwaway prototypes — we build systems that handle real traffic, real money, and real deadlines.
Built by Builders
We’re engineers who ship production systems, not slide decks. Our own trading platform handles real money — we build everything to that standard.
Lean & Efficient
No bloated teams, no layers of project managers. Senior engineers working directly on your problem — you get more delivered per dollar spent.
Full Stack, No Gaps
From database schema to deployment pipeline, we own the entire stack. One team, one vision, no finger-pointing between frontend and backend.
Battle-Tested Stacks
Rust for performance-critical systems. Next.js for modern web. We choose technology for reliability and maintainability — not hype cycles.
No Surprises
A straightforward process built on transparency. You know what’s happening at every stage.
Discovery
We learn your business, your constraints, and what success looks like. No assumptions — just questions until we understand the problem cold.
Scope & Proposal
A clear, fixed-scope proposal with architecture decisions explained — not a vague estimate. You know exactly what you’re getting and when.
Build
Iterative development with regular demos. You see working software every week — not a big reveal at the end.
Ship
Deployment, documentation, and knowledge transfer. Your team can operate the system without us if needed.
Support
Ongoing maintenance, monitoring, and iteration. We stay in the loop as long as you need us.
Let’s Build Something
Have a project in mind? Whether it’s a full build, an integration, or you just need a second set of eyes on your architecture — we’re here.