Open to opportunities

Jason Teixeira

@jasonteixeira

Message

Full-stack fintech developer building ML-driven trading systems and production SaaS platforms.

United States

Message

What I'm looking for

I’m looking to build production fintech and trading platforms with strong engineering rigor—distributed remote collaboration, ML/quant rigor (no leakage), and clean APIs. I want to ship systems end-to-end from data pipelines to execution and dashboards.

I’m a full-stack developer with 5+ years building production fintech applications, ML pipelines, and trading systems in distributed remote teams. I focus on shipping reliable products that connect real-time market data to decision-making and execution.

At a fintech startup, I led investment research and full-stack development for a 14-person remote team reporting to the CEO. I built dashboards for real-time equities and futures data, designed trade-data ingestion and subscription APIs, and supported Stripe billing automation with strong team collaboration through Agile sprints and code reviews.

As the Founder & Lead Developer of Nexural, I shipped a trading SaaS platform with Stripe billing, OAuth, and a robust backend of endpoints and tests. I also built AlphaStream ML signals with walk-forward validation and developed a trade engine that turns signals into execution, including risk management and production-grade NinjaTrader indicators.

Experience

Work history, roles, and key accomplishments

Current

Founder & Lead Developer

Current

Nexural

Jan 2024 - Present (2 years 6 months)

Founded and led development of a SaaS trading platform with Stripe billing, OAuth authentication, and FastAPI services backed by PostgreSQL tables. Built ML alpha signals with walk-forward validation and developed trading infrastructure (research metrics, trade execution pipeline, risk management) including NinjaTrader 8 indicators and additional product features.

PostgreSQL fastAPI REST APIs Stripe Billing OAuth XGBoost LightGBM Random Forest Walk Forward Validation Machine Learning Pipelines Test Automation Docker C ZeroMQ Python Ninjatrader 8

Senior Analyst & Full-Stack Developer

HighStrike

Jan 2021 - Jan 2026 (5 years)

Led investment research and full-stack development for a remote fintech team, building React/Next.js dashboards for real-time equities and futures data and back-end APIs for trade ingestion, subscriptions, and Stripe billing automation. Authored extensive investment analysis and collaborated in Agile sprints with Git pull requests and async Slack communication.

Investment Research React Next.js REST APIs Stripe Billing OAuth Agile Scrum Git Code Review Pull Requests Slack

Project Manager & General Contractor

Sage Ideas LLC

Jan 2016 - Jan 2021 (5 years)

Managed residential remodeling projects as Project Manager and General Contractor, coordinating subcontractor teams and delivering on-time, on-budget outcomes. Handled client lifecycle activities including sales, estimates, daily communication, issue resolution, and sign-off.

Residential Remodeling Project Management Contractor Management Estimation Client Communication Issue Resolution Scheduling Budgeting