Java Developer

Sofia, Sofia City Province, Bulgaria💼 Full-time🗓 2026-01-21 → 2026-09-25

Core

Developing and maintaining a large-scale internal payment infrastructure processing transactions from POS, E-commerce, and banking sources.

Role type

Senior Java Developer (DevOps)

Builds

Omni-channel payment infrastructure and supporting applications

Domain

Fintech / Payments

Deliverable

production ML models | product features | infrastructure

Required skills

Java 17+, PostgreSQL, Automated Testing strategies, Docker, Kubernetes, Maven, Jenkins

Preferred skills

Quarkus framework

Technologies

Java, Quarkus, PostgreSQL, Docker, Kubernetes, Maven, Jenkins

Responsibilities

Participate in full software development lifecycle including development, code reviews, testing, documentation, and deployments; Develop and operate payment infrastructure; Troubleshoot complex issues across all environments

Seniority

Mid-to-Senior, hands-on IC

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