Key Responsibilities
- Design, develop, and maintain backend systems.
- Build scalable, secure, and high-performing software.
- Develop REST APIs.
- Engineer and maintain microservices.
- Contribute to greenfield development projects.
- Improve and evolve existing systems.
- Work on systems supporting card payments and treasury management.
- Contribute to transaction booking and related financial infrastructure.
- Work with systems connected to crypto liquidity.
- Develop backend services using Java and Spring Boot.
- Work with PostgreSQL databases.
- Write clean and maintainable code.
- Apply test-driven development practices.
- Use domain-driven design principles where appropriate.
- Contribute to continuous integration and delivery processes.
Requirements
- Demonstrable professional experience in backend development.
- Strong fluency in Java.
- Bachelor’s degree or higher in Computer Science, Mathematics, Physics, Engineering, or another relevant scientific discipline.
- Ability to learn quickly.
- Results-oriented approach to software development.
- Strong written and verbal communication skills.
- Fluency in English.
- Experience building complex products at scale.
- Experience working in hypergrowth startup environments.
Key Skills
- Java 25
- Backend engineering
- Spring Boot
- PostgreSQL
- REST APIs
- Microservices
- Distributed/backend systems
- Clean code
- Test-driven development (TDD)
- Domain-driven design (DDD)
- Continuous integration
- Continuous delivery
- Software architecture
- API development
- Financial technology
- Problem-solving
- Technical communication
Salary & Benefits
ARQ describes the compensation package as offering a competitive salary and benefits, but the exact salary range is not provided in the listing.
Other benefits and opportunities mentioned include:
- Stock options
- Discretionary performance bonus
- Latest tools and technology
- Opportunity to work with an experienced engineering team
- Professional growth and skill development
- Opportunity to contribute to fintech products serving the Latin American market
Work Schedule
This is a full-time hybrid position based in London.
ARQ’s stated office policy requires employees to work 3–4 days per week in the office. The remaining working arrangement is not further detailed in the provided listing.
Who This Job May Be a Good Fit For
This role may suit a backend engineer with strong Java experience who enjoys working on financial technology and complex systems.
It could be particularly relevant for developers who have experience with Java, Spring Boot, PostgreSQL, REST APIs, and microservices, and who are comfortable working with practices such as TDD and DDD.
The position may also appeal to engineers who enjoy startup environments, fast development cycles, and the opportunity to work on systems that support large-scale financial products.
How to Apply
Applicants can apply through ARQ’s online application process.
Before applying, make sure your CV clearly demonstrates your backend engineering experience, particularly your work with Java and large-scale systems.
Before You Apply
- Highlight your professional Java and backend development experience.
- Mention specific experience with Spring Boot, PostgreSQL, REST APIs, and microservices.
- Include examples of complex systems or products you have helped build.
- Highlight experience with TDD, DDD, clean code, and CI/CD if applicable.
- Make your experience with financial systems or fintech clear if you have it.
- Confirm that your educational background meets the stated degree requirement.
- Emphasize your English communication skills and experience working collaboratively.
- Review the hybrid working arrangement carefully, as the office policy requires 3–4 days per week in-office.
- Since the listing does not provide an exact salary range, confirm the full compensation package, including salary, bonus, and stock options, during the recruitment process.