Principal Backend / Infrastructure Engineer – TypeScript

Core Responsibilities

• Design, build, and maintain backend services and APIs using Node.js and TypeScript.
• Improve and extend the infrastructure that enables trading, account management, transaction processing, and portfolio automation.
• Ensure high availability, performance, and security across backend systems powering millions of daily operations.
• Build and enhance internal tools, data pipelines, and system integrations.
• Extend our DevOps/infrastructure to shape CI/CD, deployment automation, observability, monitoring, and incident response.
• Champion best practices for code quality, system design, testing, and documentation.
• Mentor junior engineers and drive architectural initiatives across the backend domain.

Qualifications

• 6+ years of professional experience building backend systems in TypeScript or comparable languages (Node.js preferred).
• Strong backend fundamentals: APIs, microservices, distributed systems, data stores, caching, messaging systems.
• Experience with database design (SQL & NoSQL), scaling patterns, performance optimization, and observability.
• Deep experience with cloud platforms (AWS, GCP, Azure) and infrastructure as code.
• Solid understanding of security practices for backend systems (authentication, authorization, data protection).
• Strong analytical, problem-solving, and communication skills.
• Ability to work effectively in a fast-paced, collaborative environment.

What Makes You Stand Out

• Experience building financial or real-time services.
• Familiarity with automated portfolio, trading, or financial data systems.
• Previous ownership of backend infrastructure or mission-critical systems.
• Experience scaling apps used by tens of thousands of users with high throughput.

Compensation

Competitive cash compensation and well-above-market equity packages.