[Remote] Senior Software Engineer - Investments

Note: The job is a remote job and is open to candidates in USA. Mercury is a fintech company that provides an exceptional banking experience for startups by helping them manage their idle cash. The Senior Software Engineer will lead cross-functional projects, define technical architecture, and collaborate with various teams to build scalable systems for the Treasury product.ResponsibilitiesLead high-impact, cross-functional projects across Treasury engineering, operations, compliance, and risk teams to build stable and scalable systems and processesPlay a significant role in defining the technical architecture and experience of the Treasury productCollaborate with product, design, and operations to ship thoughtful features for our customers and internal usersFeel a strong sense of product ownership and actively seek responsibility – we want someone excited to help shape and build Mercury’s futureJoin a team of experienced and junior product engineers managing billions of dollars of customer assetsSkillsExperienced with Haskell or another programming language with sufficiently similar static typing or functional paradigmsDomain knowledge of broker-dealer trading or custody systems that support both individual securities (equities, fixed income) as well as ETFs and mutual fundsHas been the technical lead of complex projects with many stakeholders with a track record of successMade architectural decisions measuring the impact of those decisions over time. You should be able to clearly articulate your technical opinions and lay out tradeoffsComfortable mentoring both junior and senior engineersCommunicates and collaborates effectively with peers and cross-functional counterparts by being helpful and engagedCompany OverviewMercury provides digital banking and financial tools tailored for startups and modern businesses. It was founded in 2017, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://mercury.com.Company H1B SponsorshipMercury has a track record of offering H1B sponsorships, with 2 in 2026, 14 in 2025, 6 in 2024, 8 in 2023, 1 in 2022, 1 in 2021, 1 in 2020. Please note that this does not guarantee sponsorship for this specific role.