Senior Software Engineer - Payments & Treasury

Alpaca · Remote - Anywhere · Engineering

Posted 2026-07-13

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Your Role

As a senior software engineer, you will help build and scale the systems and services that form the foundation of Alpaca and empower millions of users that are trading  billions of dollars worth of assets daily .

The payments team is responsible for building and maintaining a modern global payments and treasury platform. Operating in an industry in which money movement is a critical component, we adopt a modern technology focused approach with highly scalable, event-driven systems. Resilient engineering, technical and operational scalability, and system integrity are crucial to our success.

We have ambitious plans to build a seamlessly integrated comprehensive treasury platform into an industry leading end-to-end financial infrastructure on a global scale. Alpaca has and will continue to prove ourselves as an innovative market leader and this team is a core component of our growth across global markets and asset classes.

We are looking for senior engineers who are keen on providing quality solutions, have great fundamentals, proven experience building and architecting at scale, and not afraid of challenging conventions or voicing their opinions. In this role, you will have the autonomy to design and implement solutions to achieve defined goals while actively participating in defining those goals.

An understanding of cloud-based modern architecture, infrastructure, and orchestration practices are also great assets we actively look for.

Who You Are (Must-Haves):

Strong problem-solving skills paired with a proactive mindset

Excellent communication and collaboration skills

The ability to work independently and as part of a team

A preference for simple and elegant solutions

At least 3 years of experience working on systems at scale

Proven experience in building and maintaining microservices

Experience with client facing APIs

Strong coding skills, preferably in Go

Ability to write clean, well tested, and maintainable code

Experience with domain driven design and event driven design

Ability to debug issues or better yet, foresee problems and avoid them entirely

Familiarity with containerization and orchestration technologies, especially Kubernetes

Experience with cloud platforms, preferably Google Cloud Platform

Experience with messaging queues and message brokers

Experience with relational databases, preferably PostgreSQL

Experience with distributed systems design

Previous experience with or understanding of payment rails and the payment lifecycle

Experience with double entry accounting and financial ledgers

Who You Might Be (Nice-to-Haves):gPrevious experience in the financial industry or knowledge of payments initiations

Experience with financial reconciliation systems

Experience with or understanding of ISO20022 financial standard

Experience working remotely

Experience working at a startup, exchange, brokerage, market maker, or hedge fund

DevOps mindset is an asset

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