> Markdown version of [/jobs/ext/3418168-senior-software-engineer-investments](https://www.wearedevelopers.com/jobs/ext/3418168-senior-software-engineer-investments). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer - Investments

- **Company:** Mercury Systems, Inc.
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Salary:** $189,700.0 - $250,900.0
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Backend
- **Published:** September 3, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=1f158f66043ebfdf

## About the Role

* Has 5-7+ years of backend experience with a strong sense of ownership and detail.
 * Domain knowledge of broker-dealer trading and/or custody systems that support both individual securities (equities, fixed income) as well as ETFs and mutual funds.
 * Understands scale and isn't afraid to dig into AWS and infrastructure solutions.
 * Has been the technical lead of complex projects with many stakeholders from inception to completion with a track record of success.
 * Made architectural decisions measuring the impact of those decisions over time. You should be able to clearly articulate your technical opinions and lay out tradeoffs.

## Description

As a Senior Software Engineer on the Investments Team, you'll play a key role as a technical leader and hands-on engineer in building scaled, novel, and compliant Trading & Custody systems. These systems power our Treasury and Invest products and empower our internal Investment Operations team with robust and efficient tools. You will showcase a strong sense of ownership in a collaborative, cross-functional environment while bringing the entire engineering team along with you as a leader.

As part of this role, you will:

 * Lead high-impact, cross-functional projects across the Investments space.
 * Architect, build, and scale brokerage trading and/or custody systems and processes.
 * Collaborate with product, operations, and compliance to ship thoughtful features for our customers and internal users.
 * Feel a strong sense of product ownership and actively seek responsibility - we want someone excited to help shape and build Mercury's future.
 * Join a team of engineers who do not take themselves seriously as we manage billions of dollars of customer assets.