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Software Engineer (Java)

Build scalable REST APIs and microservices for global fintech products

As a Backend Engineer at ARQ, you will design, develop, and maintain scalable, secure, and high-performing backend systems. Your work will focus on greenfield development and improvement of existing systems, including building REST APIs, engineering microservices, and evolving systems for card payments, treasury management, transactions booking, and crypto liquidity. The technology stack is based on Java 25 with Postgres and Spring Boot, empha...

Why This Role?

Own the development process that directly impacts customer experience and financial inclusion

Key Responsibilities

  • Design and develop scalable REST APIs using Java and Spring Boot
  • Engineer and maintain microservices for fintech products
  • Improve and evolve existing systems such as card payments and treasury management
  • Work on crypto liquidity and transactions booking systems
  • Apply TDD, DDD, and CI/CD practices to ensure code quality and fast delivery
  • Collaborate with a team to build secure, high-performing backend solutions

Requirements

  • Demonstrable experience in backend development with fluency in Java
  • Bachelor's degree or higher in Computer Science, Mathematics, Physics, or Engineering/Science
  • Strong communication skills in English (verbal and written)
  • Proven track record building complex products used by millions in hypergrowth startups
  • Quick learner with ambitious, results-driven personality

Required Skills

javaspring bootpostgresbackend developmentclean codeREST APIMicroservicesPostgreSQLTDD

Indonesia Context

Working Hours Overlap:
Flexible — work your own hours
See remote (USD) vs local pay →

Keywords

Java backend engineerREST API developmentmicroservices fintechSpring BootTDD DDDcrypto liquidity systems
View Original Description from Ashby Job Boards

Original description from Ashby Job Boards

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 - Own the development process that will face on the customer's impact - Latest technology to work with - Strong team that will help you improve your skills

Salary Context

Similar Engineering roles on LokerDollar pay around $170k/yr (range $11.194k–999.999k/yr, n=491 active listings).

Hiring at ARQ

ARQ has 12 other active roles on LokerDollar and has been hiring here since Jul 4, 2026 — across Engineering, Data & Analytics, Product, Marketing.

View all ARQ openings →
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Remote-friendly · fits your timezone
Company
ARQ
Source
Ashby Job Boards
Job Type
full time
Location
Remote
Category
Seniority
mid
PostedFresh
Jul 20, 2026

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Frequently asked questions

Is Software Engineer (Java) at ARQ a remote job?
This role is based in Remote. See the listing for remote/onsite details.
What type of employment is Software Engineer (Java) at ARQ?
This is a full time position.
How do I apply?
Click the "Apply" button on this page to go to the official application at ARQ.

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