GCS Recruitment
Open positions
Senior Java Backend Engineer | Cloud/SaaS, Hybrid Dublin
Senior backend engineer building Java/Spring Boot cloud services for a large-scale enterprise SaaS platform, hybrid from Dublin (3+ days/week in office). Day-to-day involves REST APIs, integrations, data processing, performance tuning, and CI/CD on AWS with Docker/Kubernetes. No visa sponsorship.
Senior Java Backend Engineer - Remote (Poland) 12-Month
Senior Java backend engineer on a 12-month B2B/freelance contract (remote within Poland, Kraków hub) designing and scaling microservices-based backend services with Java, Spring Boot, and integration frameworks like Apache Camel and Spring Integration, while mentoring and coaching developers across international client teams.
Java Backend Engineer
Senior Java backend engineer on a 12-month B2B/freelance contract (extendable) via recruiter GCS, remote within Poland with a Kraków hub. Day to day: designing and scaling microservices with Java, Spring Boot, Apache Camel, and Spring Integration, plus mentoring and training client and partner developers.
Kotlin Backend Engineer - Hybrid Contract
GCS Recruitment is hiring a contract Kotlin backend engineer near Sheffield, UK, on a hybrid basis with about two on-site days per week. The role focuses on building and maintaining Kotlin/Java back-end platforms, APIs, and microservices within cloud-ready, Agile delivery teams.