Senior Software Engineer (Java)

ARQ; Polska; Ibrido; PLN 160.000 - 260.000; Tempo pieno

Vantaggi offerti da questo lavoro

Competitive salary

Stock options

Discretionary performance bonus

The latest tools and technology

World-class team that will challenge &

Hybrid work model

Opportunity to help build fintech app

Descrizione del lavoro

ARQ is a fast-growing fintech redefining how people move money across borders. We seek a Backend Engineer to design, build, and maintain scalable backend systems powering our innovative products.

You’ll work on greenfield development, REST APIs, and microservices with a Java/Spring Boot stack, using TDD, DDD, and CI/CD to ensure quality and rapid delivery. Join a world-class team shaping the fintech landscape in a global market.

Competenze

• Demonstrable experience in backend development with fluency in Java.
• Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or related disciplines.
• Quick learner with ambitious and results-driven personality; strong communication (English fluency).
• Track record of building complex products used by millions in hypergrowth startups.

Mansioni

• Design, develop, and maintain scalable backend systems.
• Build REST APIs and microservices; evolve critical systems (e.g., payments, treasury, transactions).
• Work with Java 25 on the backend using Postgres; leverage Spring Boot for delivery.
• Follow clean code principles with TDD, DDD and CI/CD practices.

Conoscenze

Java

Spring Boot

REST APIs

Microservices

TDD

DDD

CI/CD

English fluency

Formazione

Bachelor's Degree in Computer Science or related field

Strumenti

PostgreSQL

Descrizione del lavoro

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