Senior MuleSoft Developer– Madrid-based

Radisson Hotel Group is one of the world's largest hotel groups with ten distinctive hotel brands, and more than 1,500 hotels in operation and under development in 95+ countries. The Group’s overarching brand promise is Every Moment Matters with a signature Yes I Can! service ethos. People are at the core of our business success and future. Our people are true Moment Makers and together we bring the culture, spirit, environment and opportunities that empower you to be your best, every day, everywhere, every time. Together, we make Every Moment Matter.

Role purpose

The Senior MuleSoft Developer is responsible for the design, delivery, and operational ownership of enterprise integration solutions that underpin Radisson Hotel Group’s core business platforms.

The role exists to ensure that integrations are robust, scalable, secure, observable, and production‑ready, with particular accountability for MuleSoft development, event‑driven integrations using Solace PubSub+, and the ownership of logging and monitoring platforms (OpenSearch and Grafana).

Expected outcomes

- Stable, reusable, and well‑governed MuleSoft integrations
- Reliable event‑driven architectures supporting business‑critical flows
- Full operational visibility through owned logging and dashboards
- Reduced operational risk through strong engineering quality and observability

Roles/Responsibilities

Event‑Driven Architecture

- Design and implement event‑driven integrations using Solace PubSub+ as the primary messaging and event platform.
- Apply enterprise messaging patterns including retries, idempotency, dead‑letter queues, and fault tolerance.
- Apply experience with other event or streaming platforms (for example Apache Kafka) where relevant.

API Documentation & Governance

- Define, maintain, and publish API specifications using Swagger / OpenAPI.
- Ensure APIs are documented, versioned, discoverable, and aligned with RHG API standards.
- Support API lifecycle governance, including versioning and deprecation.

Observability, Logging & Dashboards (Platform Ownership)

- Implementing logging strategy using OpenTelemetry.
- Deploy, maintain, and own OpenSearch for centralized logging and traceability across integrations.
- Deploy, maintain, and own Grafana for dashboards, alerting, and operational monitoring.
- Build dashboards covering integration health, throughput, latency, and error rates.
- Use telemetry and logs to proactively identify risks and support root‑cause analysis.

Enterprise Systems Integration

- Design and support integrations with enterprise systems, including SAP via MuleSoft connectors.
- Collaborate with Enterprise Architecture, SAP, infrastructure, and security teams to ensure aligned solutions.

Platform Support & Quality

- Participate in P1/P2 incident resolution and post‑incident reviews.
- Ensure integrations meet security, data protection, and compliance requirements.
- Apply secure coding practices and support audit and regulatory needs.

Location

· Madrid, Spain - relocation to Madrid is required as this is a hybrid role from Madrid.

Language skills

· Professional proficiency in English is required.

· Strong proficiency with MuleSoft Anypoint Platform, including

- Experience with build/deployment pipelines, e.g. Azure DevOps.
- Proven experience with event‑driven integration using Solace PubSub+.
- Proven experience to deploy, maintain, and own OpenSearch for logging and traceability.
- Proven experience to deploy, maintain, and own Grafana dashboards and alerting.
- Hands‑on experience with API documentation using Swagger / OpenAPI.

Additional / Advantageous Experience

- Experience with other event or streaming platforms (for example Apache Kafka).
- SAP integration experience (SAP CPI or SAP via MuleSoft connectors).
- Experience with automation and file‑based integrations (MoveIT, Couchdrop, SFTP).
- Familiarity with Maven, Git/GitHub, and Linux environments

Professional & Behavioral Competencies

- Senior‑level problem‑solving and analytical skills.
- Ability to work independently with minimal supervision.
- High attention to quality, resilience, security, and operational impact.
- Clear technical communication and documentation skills.
- Strong collaboration skills across architecture, security, and infrastructure teams.

Education

The description of functions is merely indicative and not exhaustive. Accordingly, the employee shall perform any other duties inherent to the labour position and their professional group, in accordance with the company's directives.

Responsibilities

Integration Design & Development; Design, develop, test, and deploy APIs and integrations using the MuleSoft Anypoint Platform.; Apply API‑led connectivity patterns (System, Process, Experience layers).; Develop complex DataWeave transformations and robust error‑handling strategies.; Contribute to integration standards, reusable assets, and best practices.

Requirements

MuleSoft Certification required (Developer or Integration Architect).; 4–5+ years of hands‑on MuleSoft experience in an enterprise or mission‑critical environment.; Degree in Computer Science, Information Technology, or equivalent professional experience.; MuleSoft certification is mandatory for this role.