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Pro5.ai

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Lead Full-Stack & Quant Systems Engineer

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Summary

Hands-on lead engineer working directly with the founder to build the tech behind an investment business: a polished public website, a quantitative trading system (market data, exchange APIs, execution, risk controls), and a central monitoring dashboard. Core stack: JavaScript/TypeScript, Python, backend APIs, Linux servers, containers, and AI/LLM integrations.

About the Role

We’re looking for a hands-on Lead Full-Stack & Quant Systems Engineer to help build the technology infrastructure behind a growing investment and technology business.

This role combines full-stack development, quantitative trading systems, AI integration, and technical ownership. You’ll work directly with the founder to turn ambitious ideas into reliable, production-ready software — from a polished public-facing website to an automated trading system and a central management platform.


The ideal candidate enjoys both high-level architecture and hands-on implementation, with an eye for visual detail and a strong understanding of backend systems, infrastructure, security, and real-time data.


What You’ll Do

  • Refine the website’s design, functionality, responsiveness, and performance across desktop and mobile.
  • Set up and integrate a quantitative trading system, connecting trading logic, market data, exchange APIs, and execution services.
  • Build a central management application for monitoring:
  • Trading positions
  • Balances
  • Performance
  • System health
  • Operational activity
  • Implement essential trading controls such as exposure limits, alerts, audit logs, and emergency stop functionality.
  • Integrate AI models and agents where they can provide practical value in analysis, automation, and internal workflows.
  • Develop secure backend services, databases, authentication, and role-based access.
  • Manage deployment, testing, monitoring, and ongoing technical improvements.
  • Work directly with the founder to translate business and technical ideas into clear priorities and working software.
  • Document your work and build maintainable systems that can evolve with the business.


What We’re Looking For

  • Demonstrated experience building and shipping full-stack websites or applications.
  • Strong JavaScript/TypeScript and Python skills.
  • Experience with modern frontend frameworks and backend APIs.
  • Strong understanding of databases, third-party integrations, real-time data, and asynchronous systems.
  • Experience deploying and maintaining applications on Linux servers.
  • Comfortable working with Git and container-based development/deployment workflows.
  • Strong understanding of security when handling credentials, permissions, financial data, and sensitive operations.
  • Excellent attention to detail and an eye for visual quality.
  • Strong independent problem-solving and technical judgment.
  • Clear communication and the ability to make sensible decisions around scope, reliability, and delivery.


Especially Valuable Experience

The following would be strong advantages:

  • Experience with exchange APIs, automated trading, or financial platforms.
  • Understanding of backtesting, paper trading, transaction costs, slippage, and execution reliability.
  • Experience integrating LLMs, AI agents, or locally hosted AI models.
  • Experience building interactive dashboards.
  • Experience with advanced web animation or 3D web experiences.


What Success Looks Like

Success in this role means delivering:

  • A polished, responsive, and reliable website.
  • A quantitative trading system that can be tested, monitored, and controlled.
  • A management application that makes complex trading and business operations easy to oversee.
  • Well-documented, maintainable technology that can evolve as the business grows.


Why Join?

  • Work directly with the founder and have meaningful input into core technical decisions.
  • Take ownership across full-stack development, AI, infrastructure, and quantitative trading technology.
  • See your work become a central part of the business.
  • Opportunity to contribute to a broad technical environment rather than a narrowly defined engineering function.
  • Contractor engagement with the possibility of transitioning to a full-time position with founder privileges, subject to mutual agreement.


Application

Please provide your CV or professional profile, along with links to relevant projects or GitHub repositories.

When applying, highlight:

  • What you personally built and your level of ownership.
  • Any experience with trading systems or financial technology.
  • AI/LLM or agent integrations.
  • Operational dashboards or management applications.
  • Your availability.
  • Your compensation expectations.


Skills

What Lead Full-Stack jobs ask for — and how much of it you have →
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See also

Full-Stack jobs by country — openings, pay and top skills →

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