About the job
About Alloy River
At Alloy River, we are pioneers in developing agentic applied AI specifically tailored for the finance and accounting sectors. In a world where accounting processes are often disjointed, manual, and reactive, we strive to create intelligent, structured, and decisively operational solutions. Our objective is to revolutionize finance, transforming it from a slow, labor-intensive reporting function into a dynamic, real-time strategic engine that drives profit and ensures control.
We have fundamentally re-engineered the general ledger, integrating automation, workflow orchestration, and applied AI into its very core. Rather than having accountants shuffle data between various tools and manage tedious checklists, our advanced system generates outcomes, highlights exceptions, and amplifies leverage over time. This is not mere incremental enhancement; it represents a comprehensive redesign of financial infrastructure for an AI-driven future.
With over $30 million raised to date from notable investors including Portage Ventures, Electric Capital, Elad Gil, and distinguished angels such as Tobi Lütke and Balaji Srinivasan, we are expanding our operations with the finest builders, operators, and craftsmen in the industry.
Role Overview
In this pivotal role, you will be the architect behind our foundational systems. The patterns you design will dictate the movement and settlement of financial data across the ledger, enabling others to build upon it rapidly and securely. Your responsibilities will encompass core system architecture, integration infrastructure, and the abstractions that ensure a cohesive and scalable codebase. Your work will be critical to product builders, agents, and future team members. Managing financial data requires meeting rigorous standards that most software does not encounter, and your contributions will set the benchmark.
What You'll Work On
Lead the development of the fundamental patterns that dictate the movement, matching, and settlement of financial data - the essential layer upon which everything else relies.
Create essential primitives that product builders can leverage instead of reinventing: counterparty enrichment, object-arrival matching, and transaction reconciliation.
Develop abstractions that empower engineers and agents to contribute effectively while navigating the complexities beneath.
Serve as the architectural authority for the team - reviewing methodologies, guiding new projects, and maintaining the coherence of the codebase.
What We're Looking For
This position requires a robust technical foundation and a proven track record of developing systems that serve as the backbone for other engineers. This is not a role for generalists; we seek individuals with substantial experience in building reliable systems.

