Software Engineer (Java Backend) at ARQ
May no longer be active — verify on the employer site
ARQ posted this role again on 2026-06-12; this is an older listing. See the newer listing
At a glance
- Company
- ARQ
- Location
- London, United Kingdom
- Work arrangement
- On-site
- Employment type
- Full-time
- Experience
- 2–5 years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
- Added to The Stack
✨ The Stack take on this ARQ job
- 🏢 ARQ has 4 jobs here, 4 with visa sponsorship see all
- 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide
- 💡 No salary shown. Ask ARQ if it is above the minimum.
Updated 2026-11-05, from our data and official sources.
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About the role
Responsibilities:
- Design, build and maintain scalable backend services and REST APIs using Java and Spring Boot.
- Work on greenfield projects and improve existing systems for card payments, treasury management, transactions booking and crypto liquidity.
- Apply TDD, DDD and CI/CD practices to deliver maintainable, high-quality code.
- Collaborate with product and cross-functional teams to translate requirements into implementation and own delivery.
- Participate in code reviews, performance tuning and operational readiness for production services.
Requirements:
- Demonstrable backend development experience with Java (preferably recent Java versions) and Spring Boot.
- Practical experience with Postgres and building RESTful microservices.
- Familiarity with TDD, DDD, CI/CD practices and clean, maintainable code principles.
- Bachelor's degree in Computer Science, Mathematics, Physics or related discipline preferred.
- Strong English communication skills and experience working in fast-paced or hypergrowth environments.
Responsibilities
Design, develop, and maintain scalable backend systems and REST APIs to power fintech products. Focus on greenfield development and improving systems for card payments, treasury management, and crypto liquidity.
Requirements
Requires a Bachelor's degree in Computer Science or a related field and demonstrable fluency in Java backend development. Candidates should have a track record of building complex products for hypergrowth startups.
Key skills
- Java — in 360 other listings on The Stack
- Spring Boot — in 147 other listings on The Stack
- Postgres — in 69 other listings on The Stack
- REST APIs — in 63 other listings on The Stack
- Microservices — in 236 other listings on The Stack
- TDD — in 44 other listings on The Stack
- DDD — in 18 other listings on The Stack
- Continuous Integration — in 31 other listings on The Stack
- Continuous Delivery
- Backend Development
- English Fluency
On The Stack (as of 2026-11-05)
Frequently asked questions about ARQ
Is this Software Engineer (Java Backend) role still open?
It was posted on 2026-06-09. Listings more than 30 days old may no longer be active, so check ARQ's site before applying.
Does ARQ offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on ARQ's site.
Where is this role located?
The listing gives the location as London, United Kingdom. It is marked on-site.
What skills does this role ask for?
The listing names: Java, Spring Boot, Postgres, REST APIs, Microservices, TDD, DDD, Continuous Integration, Continuous Delivery, Backend Development, English Fluency.