Backend Software Engineer, Java

Arqfinance — United Kingdom · Posted ~1 hour ago

Mid

Skills

Java Backend development REST API development Microservices Scalable system design Secure software development Performance optimization REST APIs

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Summary ✨ AI‑Generated

An early-stage financial technology company is seeking a backend engineer to design, develop, and maintain scalable, secure, and high-performance systems. You will build REST APIs and microservices, develop new systems from the ground up, and improve existing infrastructure supporting international financial transactions. The role offers opportunities to influence technical decisions and contribute to financial inclusion.

Highlights

Join an early-stage financial technology company where engineers can shape products, culture, and growth. Work on greenfield development and existing systems, building scalable and secure backend infrastructure for cross-border financial services. Collaborate with a talented engineering team on products with international reach.

Description

About ARQ ARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges, global impact, and the chance to grow fast with a world-class team, ARQ is the place to do it. What We're Looking For As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You’ll collaborate with a talented team to create solutions that drive financial inclusion and transform the way people manage their money. What You'll Be Doing The work will focus on greenfield development and improvement of existing systemsProjects will include building REST APIs, engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity)Our technology stack is based predominantly on Java 25 on the backend with Postgres databaseWe rely on Spring Boot for quick and quality deliveryWe have a pragmatic approach to develop our business logic, focusing on clean code, with emphasis on maintainability and fast turnaround with TDD, DDD and continuous integration & delivery What You'll Need Demonstrable experience in Backend development, with fluency in JavaBachelor's Degree (or above) in Computer Science, Mathematics, Physics, or other Engineering / Science disciplinesQuick learner with an ambitious and results driven personality, with excellent communication skills (english fluency, verbal and written)Track record of building complex products that millions of people use in hypergrowth startups Benefits Competitive salary and benefits Stock options, so you own part of what you buildDiscretionary performance bonusThe latest tools and technologyA world-class team that will challenge and grow your skillsThe opportunity to help build the best fintech app in Latin AmericaOffice Policy: 3-4 days a week in-office