Remote JVM Backend Engineer — Fintech Payments Platform

Salmon Group; España; Remote; EUR 54,000 - 81,000; Full time

Benefits offered by this job

Company-provided tools and equipment

Medical insurance support for you and,

Internal mental health support

22 vacation days

Job summary

Salmon is a remote, Manila-time aligned fintech developer building a scalable payments platform for Southeast Asia. You’ll join a globally distributed team delivering JVM-based microservices and payment flows with a platform-first mindset.

The role emphasizes resilience, DDD, eventual consistency, and integration with banks and PSPs. You’ll collaborate cross-functionally to release changes under robust engineering standards.

Qualifications

• 3+ years of software development on the JVM.
• Experience with Spring Boot in a microservice environment.
• Experience with domain-driven design and eventual consistency.
• Experience with payments, banking, or other transactional/financial systems.
• Solid understanding of idempotency, distributed transactions, retries, and timeouts in money flows.
• Track record in an agile setup with continuous deployment.
• Experience with containerization and orchestration in a cloud environment (Docker and Kubernetes preferred, AWS preferred).
• Experience with, and enjoyment of, continuous knowledge-sharing within the team.

Responsibilities

• Develop scalable microservices on the JVM with Spring Boot, as part of a team building platform solutions for our banking product.
• Design payment services with a focus on DDD, eventual consistency, and resilience to partner and infrastructure failures.
• Work with product, QA, security, and operations to release changes under agreed engineering standards.
• Own the design, build, and maintenance of software components supporting the Core Engineering team.
• Design and evolve payment flows end to end: processing, routing, status handling, refunds/reversals.
• Integrate new payment providers, banks, and partner channels, and handle their failure modes gracefully.

Skills

JVM development

Kotlin

Spring Boot

DDD

Eventual consistency

Payments experience

Agile/CD

Docker

Kubernetes

AWS

Kafka

ISO 20022

Tools

Docker

Kubernetes

Kafka

AWS

Job description

Salmon is a remote, Manila-time aligned fintech developer building a scalable payments platform for Southeast Asia. You’ll join a globally distributed team delivering JVM-based microservices and payment flows with a platform-first mindset.

The role emphasizes resilience, DDD, eventual consistency, and integration with banks and PSPs. You’ll collaborate cross-functionally to release changes under robust engineering standards.