Software Engineer (Java / GraphQL)

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions.

With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.We are currently supporting a fast-growing international product company operating in the OTT / video streaming space, helping telecom and media clients deliver large-scale, high-availability platforms used by millions of users globally.About the RoleWe are looking for a Software Engineer to join a custom integrations squad, focused on building and delivering integrations between a core video platform and client ecosystems.This role sits at the intersection of backend engineering, API integrations, and distributed systems, with a strong focus on reliability, scalability, and performance in high-traffic environments.Contract: Consulting - AutonomoModel: Hybrid (3–4 days remote)Office Locations: Murcia, SpainHiring Process: 4 interviews - HR screening, 2 Technical Interviews, Final Meeting and Offer DiscussionKey ResponsibilitiesDesign and deliver custom integrations in collaboration with project managers and client teams Build and maintain API-based integrations between internal systems and external partner platforms Develop backend services using Java and the Spring ecosystem within a microservices architecture Ensure software quality through testing, documentation, CI/CD, and code reviews Optimize systems for scalability, performance, and high availability, including peak traffic scenarios Collaborate cross-functionally with engineering, DevOps, infrastructure, and support teams Contribute to the continuous improvement of architecture, tools, and engineering practicesTech Stack Platform: Linux, Docker, Kubernetes, OpenStack, AWS Backend: Spring Boot, Reactor, PostgreSQL, Elasticsearch, RabbitMQ, GraphQL Frontend (context): React, WebSockets, PWARequirementsBachelor’s degree in Computer Science, Software Engineering, or a related field 4+ years of professional experience in software development Strong experience with Java, REST APIs, and Spring (Spring Boot preferred) Experience working with SQL databases (PostgreSQL preferred) Hands-on experience with microservices architectures Experience with GraphQL and/or gRPC Familiarity with Docker and CI/CD pipelines (GitLab CI or similar) Experience integrating with external APIs and complex distributed systemsNice to HaveExperience with Kubernetes Exposure to reactive programming (WebFlux / Reactor) Experience working in high-traffic / streaming / media platforms BenefitsInternational, fast-growing product environment Strong engineering culture with focus on scalability and performance Hybrid work with high flexibility Structured onboarding and collaboration with experienced teams across Europe