Senior Product Engineer, Treasury (Elixir) - AI-Powered Financial Platform

Jobgether • United State

Remote

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AI Summary

Design and scale core treasury services for an AI-driven finance platform handling high-volume transactions. Own end-to-end product development, from requirements to production, with Elixir/Phoenix and distributed systems expertise. Collaborate with senior leadership to shape product direction and technical architecture in a fully remote, autonomous role.

Key Highlights

Build and scale Elixir/Phoenix-based treasury services for AI-driven financial workflows

End-to-end ownership of product features, from requirements to production operations

Collaborate with founders and senior teams to define product direction and architecture

Key Responsibilities

Design, build, deploy, and operate Elixir and Phoenix services for high-volume financial transactions

Own product features end-to-end, including requirements definition, backend implementation, frontend delivery, and production operations

Develop and scale core treasury services supporting AI-driven spending workflows and payment card management

Prioritize reliability in Tier 0 and Tier 1 systems through observability, monitoring, and operational practices

Collaborate with founders and senior teams to shape product direction and technical architecture

Establish and refine architectural standards, engineering workflows, and code review processes

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Technical Skills Required

Elixir Phoenix Framework Distributed Systems

Benefits & Perks

Competitive compensation

Meaningful equity

AI tooling budget

Generous paid time off

Remote-first flexibility

Health and wellness benefits

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Nice to Have

Experience with Python

Background in payments, treasury, or fintech

Familiarity with event-driven architectures and message queues

Exposure to AI or machine learning-powered products

Job Description

Join an innovative engineering team building an AI-powered finance platform that transforms how enterprises manage payments, treasury, and financial operations. As a Senior Product Engineer, you will design and scale the core services behind a treasury platform handling billions in transaction volume. Your work will help enable next-generation financial workflows, including AI agents that initiate corporate expenses, manage travel, and use payment cards. Working closely with founders and a small, senior team across engineering, product, treasury, and data/AI, you will shape product direction and technical architecture. This hands-on role combines deep Elixir expertise with end-to-end product ownership, from defining requirements and building interfaces to operating reliable production systems. The position is fully remote for US-based candidates working Eastern Time hours, with significant autonomy and opportunities to influence the future of financial technology.

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