Senior Full Stack Engineer (Python + JavaScript)

Tetrix•New York, NY

21h•$180,000 - $230,000

About The Position

Tetrix is hiring a Senior Full Stack Engineer to help build its AI-native platform for institutional investors in alternative markets. The product turns unstructured private-market data into real-time insights through document retrieval, AI-powered data extraction, and portfolio analytics. The role offers the opportunity to help build financial-market infrastructure at a fast-growing startup working with leading capital allocators. The engineer will contribute across the product and technology stack, including the SaaS product, data pipelines, AI agents, and telemetry infrastructure. The position involves shaping product direction and technical strategy, working directly with clients on pitches, feature design, and feedback, and establishing secure, robust, and scalable engineering practices. The role also includes mentoring future team members.

Requirements

At least 5 years of work experience with Python and JavaScript.
Proactive, hands-on approach and ability to take initiative and keep work moving.
Ability to learn and adapt quickly, approach problems creatively, and work through challenging problems resourcefully.
Customer-oriented approach to backend decisions and UI improvements.
Collaborative communication style, valuing transparency and working effectively with others.

Nice To Haves

Experience in fast-paced or entrepreneurial environments.
Contributions to open source.

Responsibilities

Contribute across the technology stack, including the SaaS product, data pipelines, AI agents, and telemetry infrastructure.
Help shape product direction and technical strategy through collaborative brainstorming and planning.
Work with clients on pitches, feature design, and soliciting feedback.
Champion best practices and help ensure the platform is secure, robust, and scalable.
Mentor future team members.