Lead Software Engineer (Java)

DolarApp; New York (NY); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Stock options

Discretionary performance bonus

The latest tools and technology

Office policy: 3-4 days in-office

Job summary

ARQ is a fast-growing fintech constructing scalable backend systems to move value across borders. As a Backend Engineer, you’ll design, develop, and maintain scalable, secure services powering our products, collaborating with a world-class team to enable financial inclusion.

You’ll work on greenfield and existing systems, building REST APIs, microservices, and services like card payments and treasury management.

Qualifications

• Proven experience in backend development with Java
• Bachelor's degree in CS/Math/Physics or related field
• Strong communication skills in English (written and spoken)
• Track record of building products used by millions in hypergrowth startups

Responsibilities

• Focus on greenfield development and improving existing systems
• Build REST APIs, engineering microservices and support systems like payments and treasury management
• Work with Java backend stack (Spring Boot) and Postgres database
• Emphasize clean code, maintainability, and fast delivery with TDD/DDD and CI/CD

Skills

Backend development

Java

English communication

Education

Bachelor's degree in CS/Math/Physics or related

Tools

Spring Boot

PostgreSQL

REST APIs

Job 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 systems
• Projects 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 database
• We rely on Spring Boot for quick and quality delivery
• We 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 Java
• Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or other Engineering / Science disciplines
• Quick 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 build
• Discretionary performance bonus
• The latest tools and technology
• A world-class team that will challenge and grow your skills
• The opportunity to help build the best fintech app in Latin America
• Office Policy: 3-4 days a week in-office