Senior Software Engineer - Java

Ocho

Belfast, Northern Ireland💼 Full-time💰 $60,000–$60,000🗓 2026-05-26 → 2026-08-06

Core

Designing, building, and maintaining backend services and APIs for a high-scale content platform.

Role type

Senior backend software engineer (Java/Kotlin)

Builds

Core services powering a high-scale content platform

Domain

Internet / Content Platform

Deliverable

production ML models | product features

Required skills

Java, Kotlin, microservices, REST APIs, relational databases, CI/CD pipelines, TDD/BDD, SOLID principles

Preferred skills

cloud-native systems (AWS), monolith-to-microservices migration, globally distributed team experience

Technologies

Java, Kotlin, AWS

Responsibilities

Designing and building backend services and APIs, migrating monolith systems to microservices, writing test-driven code, supporting system reliability and monitoring, participating in on-call rotation, mentoring junior engineers

Seniority

Senior, hands-on IC

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About Ocho

Our client is a next generation payments technology company building the infrastructure that powers a merchant first ecosystem. They are a curious, driven and pragmatic team who believe in outcomes over outputs - focused, empowered engineers working on real problems for real merchants. Their platform is built on Java and the Spring framework, with Hibernate and Oracle for persistence, JAX-RS for REST APIs and JMS for asynchronous processing. It is a large, long-lived and actively modernised codebase, and the environment is deliberately designed to let engineers focus on technical challenges ra