The Builder Behind the Code
I'm Jason Teixeira — a systems architect and full-stack engineer who builds production-grade software. From enterprise QA systems serving 2,300+ Home Depot stores to real-time trading platforms processing $10M+ daily at HighStrike — I've operated at scale and under pressure.
Today I run Sage Ideas LLC, where I architect and build software systems for businesses, trading firms, and startups. I founded and built the entire Nexural ecosystem — a fintech platform with 185 database tables, 69 API endpoints, AI-powered bots, and Stripe billing — from zero to production, as sole architect.
Sage Ideas LLC
English · Portuguese · Spanish
B.S. Finance — Kean University
B.S. Computer Science — Full Sail University
9 (ISTQB, AWS, Cisco)
How I Got Here
Enterprise Foundations (2019-2023)
I cut my teeth at The Home Depot, where I built cloud automation and CI/CD pipelines at Fortune 50 scale. When your code affects 2,300+ stores and millions of customers, you learn to build systems that don't break. I learned rigor, process, and what production-grade really means.
Fintech Precision (2023-2024)
At HighStrike, I built test automation for a platform processing $10M+ in daily trading volume and 50K+ daily trades. A bug here doesn't just cause a bad UX — it causes real financial loss. I built frameworks that achieved <1% flaky test rate and a 95% uptime SLA. My test systems prevented multiple potential multi-million dollar trading errors.
Building My Own (2024-Present)
I founded Sage Ideas LLC and built the Nexural ecosystem from scratch — a complete fintech platform with a trading dashboard, AI-powered Discord bot (30+ commands, GPT-4o integration), research engine (71+ metrics), alert system, newsletter studio, and strategy tracker. 185 database tables. 69 API endpoints. 61 test suites. Stripe billing. All designed, architected, and built by me. I also wrote a 120,000+ word book on trading — because understanding the domain makes the software better.
Career Timeline
Sage Ideas LLC
Founder & Systems Architect
- •Built Nexural ecosystem: 7 interconnected fintech systems
- •185 database tables, 69/69 APIs passing, Stripe billing live
- •Nexural Discord AI Engine: 30+ commands, 12 phases, GPT-4o
- •AlphaStream: ML signal system, 200+ indicators, 5 models
- •Wrote 120K+ word trading book (24 chapters, editorial phase)
- •Active futures trader: 8 symbols on NinjaTrader
HighStrike
QA Automation Engineer
- •Fintech platform: $10M+ daily volume, 50K+ daily trades
- •Built test frameworks achieving <1% flaky test rate
- •95% uptime SLA enforcement
- •Prevented multiple potential multi-million dollar errors
The Home Depot
Cloud Automation Engineer
- •Enterprise scale: 2,300+ stores, millions of customers
- •CI/CD pipelines and infrastructure-as-code (Terraform)
- •Quality gates and automated deployment systems
- •Fortune 50 impact
Certifications
ISTQB CTFL
ISTQB · 2024
ISTQB TAE
ISTQB · 2024
ISTQB CT-AI
ISTQB · 2024
AWS Cloud Essentials
AWS · 2024
AWS Serverless
AWS · 2024
AWS Migration Foundations
AWS · 2024
AWS Braket
AWS · 2024
AWS Cloud Practitioner
AWS · 2024
Cisco Networking
Cisco · 2024
What Makes Me Different
I Build End-to-End
Most engineers specialize in one layer. I architect entire systems. The Nexural platform has 185 database tables, 69 API endpoints, Stripe billing, AI-powered bots, and real-time trading integrations. I designed and built all of it — database to deploy. My frameworks have been used by 50+ engineers and reduced regression testing time by 70%.
Evidence Over Claims
Every project on this site has a GitHub repo, a test suite, or a live deployment behind it. I built 13 testing frameworks because I believe in proof. 500+ tests running in under 8 minutes. 12+ breaking changes caught before production. <1% flaky test rate. I don't say I can build something — I show you the running system.
Cross-Domain Thinking
Enterprise retail (Home Depot, 2,300+ stores), fintech trading (HighStrike, $10M+ daily volume), cloud infrastructure, AI/ML, cybersecurity, quantitative analysis. I've trained 15+ engineers in test automation and established QA standards at 2 companies. I don't just know one vertical — I bring pattern recognition across domains to solve problems others haven't seen.
Let's Work Together
Whether you're hiring or you need something built.