Senior Java Software Engineer

16 hours ago Senior Krakow Hybrid Full Time Backend Jobs by ARQ ( Prev DolarApp ) ARQ ( Prev DolarApp ) Visit ARQ ( Prev DolarApp ) website ARQ is a financial services platform that lets users in Latin America hold global currencies, make cross-border payments, invest in international markets, and spend worldwide with a card. ARQ ( Prev DolarApp ) on X (Twitter) ARQ ( Prev DolarApp ) on Documentation svg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90">Recently fundedsvg]:pointer-events-none [&>svg]:size-3 text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground" href="https://ecosystem.vision/organizations/info/arq-prev-dolarapp">Company intelligence Darwin 74, Interior 301, Colonia Anzures, Alcaldía Miguel Hidalgo, C.P. 11590, Ciudad de México, Mexico Funding history svg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground">Unknown ($70M) Investors svg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground" data-slot="badge" href="/i-brevan-howard-digital">Brevan Howard Digitalsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground" data-slot="badge" href="/i-y-combinator">Y Combinatorsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground" data-slot="badge" href="/i-founders-fund">Founders fundsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground" data-slot="badge" href="/i-sequoia-capital">Sequoia Capitalsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary [a&]:hover:bg-secondary/90 py-1 text-foreground/70 hover:text-foreground" data-slot="badge" href="/i-kaszek-ventures">Kaszek Ventures Projects ARQsvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90 ml-auto shrink-0 text-[10px]">Neobank ARQ Businesssvg]:pointer-events-none [&>svg]:size-3 border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90 ml-auto shrink-0 text-[10px]">Neobank About ARQ ( Prev DolarApp ) ARQ serves travelers, investors, and professionals across Latin America who need access to global currencies and financial markets. Users can hold digital dollars and euros, receive and send international payments via dedicated US and European account details, invest in US stocks and ETFs, and spend globally with a card at market conversion rates. The platform is available across Mexico, Argentina, Colombia, and Brazil. svg]:px-3 w-full" data-slot="button" data-variant="secondary" data-size="default" href="/o-arq-prev-dolarapp">View jobs by ARQ ( Prev DolarApp ) Skills Backend DevelopmentClean CodeCommunicationContinuous DeliveryContinuous IntegrationDddJavaMicroservicePostgresqlRest ApiSpring BootTdd Candidate Availability svg]:pointer-events-none [&>svg]:size-3 [a&]:hover:bg-accent [a&]:hover:text-accent-foreground border-sky-500/20 bg-sky-500/5 text-sky-200 transition-colors cursor-pointer hover:border-sky-400/50 hover:bg-sky-500/15 focus-visible:border-sky-400/50" title="Krakow">Hybrid Kraków Required Required and preferred rules are kept separate and reflect the wording in the original posting. About The Role You will design, develop, and maintain scalable, secure, high-performing backend systems. You will build REST APIs and microservices, improve existing systems, and support card payments, treasury management, transaction booking, and crypto liquidity. You will work with Java, PostgreSQL, Spring Boot, TDD, DDD, and continuous integration and delivery. Requirements Demonstrable backend development experience with fluency in JavaBachelor's degree or above in Computer Science, Mathematics, Physics, or another Engineering or Science disciplineExcellent written and verbal English communication skillsTrack record of building complex products used by millions of people in hypergrowth startups Responsibilities Develop greenfield systems and improve existing systemsBuild REST APIs and microservicesEvolve systems supporting card payments, treasury management, transaction booking, and crypto liquidityDevelop backend services using Java and PostgreSQLApply clean code, TDD, DDD, and continuous integration and delivery practices Benefits Stock optionsDiscretionary performance bonusLatest tools and technology