Senior Software Engineer - Investments

About the role

In Renaissance Florence, wealthy merchants faced a dilemma: where could they safely store their gold without it sitting idle. The Medici family offered a radical alternative—deposit your assets with them and your assets would be secure, earn consistent returns, and, crucially, be accessible when needed. Mercury brings that same spirit of innovation to building an exceptional banking experience for startups. Our Treasury team builds the answer founders are looking for when deciding what to do with their idle cash. We’ve created a financial platform that helps startups manage their cash with confidence, combining safety and yield in one elegant package—think of it as institutional-grade cash management, reimagined for ambitious startups.

The Treasury team is a group of full-stack engineers building thoughtful products that manage billions in customer funds while helping Mercury scale. We operate with a high degree of quality and care because we understand today’s startups require solutions that go beyond traditional offerings.

Responsibilities

• Lead high-impact, cross-functional projects across Treasury engineering, operations, compliance, and risk teams to build stable and scalable systems and processes.
• Play a significant role in defining the technical architecture and experience of the Treasury product.
• Collaborate with product, design, and operations 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 experienced and junior product engineers managing billions of dollars of customer assets.

Requirements

• Experienced with Haskell or another programming language with sufficiently similar static typing or functional paradigms.
• Domain knowledge of broker-dealer trading or custody systems that support both individual securities (equities, fixed income) as well as ETFs and mutual funds.
• Has been the technical lead of complex projects with many stakeholders 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.
• Comfortable mentoring both junior and senior engineers.
• Communicates and collaborates effectively with peers and cross-functional counterparts by being helpful and engaged.

Pay

Our salary and equity ranges are highly competitive within the SaaS and fintech industry and are updated regularly using the most reliable compensation survey data. New hire offers are made based on a job candidate’s experience, expertise, geographic location, and internal pay equity relative to peers.

• US employees (any location): $166,600 - 263,450
• Canadian employees (any location): CAD $157,400 - 248,950

Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.