• Design, develop, maintain, and enhance responsive, user-friendly MDC web application capabilities using ReactJS and modern JavaScript tooling, including Vite or similar build tooling. • Develop and integrate server-side services and REST APIs using NodeJS; ExpressJS experience is preferred. • Write clean, secure, testable, and well-documented code; perform peer code reviews and contribute to technical debt reduction. • Develop and optimize Microsoft SQL Server queries, views, stored procedures, and related data-access components to support application functions, integrations, and reporting needs. • Participate in software design and architecture discussions, translating functional and non-functional requirements into scalable, reliable application solutions. • Collaborate with product owners, business stakeholders, developers, testers, data teams, and infrastructure partners using tools such as Jira and Confluence. • Create, maintain, and improve automated build, test, and deployment pipelines that support reliable MDC releases. • Manage source control, branching, pull-request, and release practices using Git and GitHub or Bitbucket. • Lead and coordinate deployments across Development, Test, Staging, and Production environments, including release-readiness checks, deployment validation, rollback planning, and post-deployment verification. • Improve repeatability and consistency across environments by documenting and automating build, configuration, and deployment processes where practical. • Monitor and support the MDC application and supporting services to maintain availability, reliability, performance, and user productivity. • Review application, server, database, and system logs to identify, troubleshoot, and resolve production issues; provide timely support during incidents, outages, and escalations. • Perform root-cause analysis and implement corrective actions that reduce recurrence and improve application resiliency, observability, and supportability.

• Sätta och utveckla tekniska mönster och riktlinjer för backend och frontend • Driva gemensamma plattformsinitiativ • Definiera och upprätthålla standarder för prestanda, tillförlitlighet, säkerhet och tillgänglighet • Driva arkitektur och systemdesign för komplexa initiativ • Forma och förbättra hur vi bygger och driftar på Azure • Driva förbättringar av utvecklarupplevelsen • Agera som mentor och linjechef för Staff och Senior Engineers

• Design and develop the global authentication platform • Integrate with diverse identity systems • Build scalable systems for future traffic growth • Design flexible and scalable APIs • Foster a strong code culture through collaboration

Role Description At Mercury, we are committed to crafting an exceptional banking experience for startups. Our product engineering group is growing and we’re looking to hire backend and full-stack engineers. We’re a team of pragmatic, product-minded engineers motivated by the desire to create lovable products that rescue our customers from frustrating, expensive legacy industry tools. As part of this role, you will: - Feel a strong sense of product ownership and actively seek responsibility – we often self-organize on small/medium projects, and we want someone excited to help shape and build Mercury’s future. - Work in an autonomous environment on a close-knit team, with a “startup within a startup” feel. - Partner closely with designers and product leaders to ship lovable experiences. We want to transcend the status quo for banking and fintech software, and many of our customers are startups and appreciate our slick, magical designs. - Join a small but mighty team of experienced product engineers within one of our Mercury product groups (Banking, Everyday Experiences, Expansion, Risk). Qualifications - 1-4 years of backend or full-stack development experience, with knowledge of or excitement to learn Haskell, React, TypeScript, and Redux. - Passionately product-minded with experience building and shipping new products. - Empathizes with users and can channel their perspective to build lovable products. - Can balance tradeoffs and find creative solutions to accomplish goals. - Actively incorporates AI tools into their workflow and is excited about leveraging them to amplify their impact. - Communicates and collaborates effectively with peers and cross-functional counterparts. Requirements - If this role interests you, we invite you to explore our public demo at demo.mercury.com . Benefits - The total rewards package at Mercury includes base salary, equity (stock options/RSUs), and benefits. - 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 for our industry. - New hire offers are made based on a candidate’s experience, expertise, geographic location, and internal pay equity relative to peers. - Our target new hire base salary ranges for this role are the following: - US employees (any location): $122,400 - $158,400 USD - Canadian employees (any location): CAD 115,700 - 149,700 Company Description Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC. Mercury values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Mercury are considered without regard to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation, or any other legally protected characteristic. We are committed to providing reasonable accommodations throughout the recruitment process for applicants with disabilities or special needs. If you need assistance, or an accommodation, please let your recruiter know once you are contacted about a role.