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 Role

We 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 - Autonomo

Model: Hybrid (3–4 days remote)

Office Locations: Murcia, Spain

Hiring Process: 4 interviews - HR screening, 2 Technical Interviews, Final Meeting and Offer Discussion

Key Responsibilities

• Design 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 practices

Tech Stack

• Platform: Linux, Docker, Kubernetes, OpenStack, AWS
• Backend: Spring Boot, Reactor, PostgreSQL, Elasticsearch, RabbitMQ, GraphQL
• Frontend (context): React, WebSockets, PWA

• Bachelor’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 systems

Nice to Have

• Experience with Kubernetes
• Exposure to reactive programming (WebFlux / Reactor)
• Experience working in high-traffic / streaming / media platforms

• International, 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