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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # IT Application and Integration Specialist - **Company:** Atradius N.V. - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Application Integration Architecture, User Authentication, Microsoft Azure, Cloud Computing, Cloud Engineering, DevOps, Distributed Systems, Design of User Interfaces, Modular Design, OAuth, OpenShift, Openid Connect, Swagger, Secure Coding, Software Engineering, Data Streaming, Systems Integration, Openapi, Data Logging, Spring-boot, Software Security, Kubernetes, Integration Frameworks, Apache Kafka, Azure AKS, Asynchronous Programming, Restful APIs, Domain Driven Design, Api Management, Docker, Microservices - **Published:** July 1, 2026 - **Apply:** https://www.jobleads.com/es/job/e5ea57c78e28639db1ce5f4eacd4aff87 ## About the Role * Higher / University level IT education * Willingness to occasionally travel within Europe * Fluent in English (Spanish is a plus), * Experience in roles such as Senior Developer, Technical Specialist, or Integration Specialist * Strong knowledge of Spring Boot, with exposure to modular application design (e.g., Spring Modulith preferred) * Experience with application integration patterns * Good understanding of: + Modular monolith architecture and domain-driven design concepts + REST APIs and OpenAPI/Swagger + Event-driven and asynchronous communication + Microservices (as complementary architecture, not mandatory focus) * Experience with some of the following: + API platforms (e.g., Azure API Management) + Event streaming (Kafka, Azure Event Hub) + Containers (Docker, Kubernetes, AKS/OpenShift) + Logging and monitoring toolsSpring Batch + Enterprise Architect Sparx * Interest in and motivation to grow into architecture responsibilities, * Basic understanding of application and API security concepts * Familiarity with authentication and authorization (e.g., OAuth2, OpenID Connect) * Awareness of secure coding practices and common risks * Understanding of secure communication (HTTPS/TLS) * Ability to consider security in modular design and PoCs, with support where needed Cloud * Good understanding of Azure or similar platforms * Familiarity with cloud-native concepts, * Strong coordination and collaboration skills * Pragmatic and solution-oriented mindset * Interest in modular architectures and evolving systems step-by-step * Eagerness to grow into an architect role * Strong communication skills, able to simplify technical topics Proactive and curious, with a willingness to learn ## Description You will report directly to the ITS Senior Manager responsible for the CI systems. Your main responsibilities will focus on shaping, coordinating, and validating modular application and integration solutions, working closely with engineers and stakeholders across the organization., In your role you will be key for the following objectives: * Contribute to the design of efficient, modular, and maintainable application solutions * Promote well-structured modular architectures (e.g., Spring Boot Modulith) within the CI ecosystem * Ensure effective and scalable integration between application modules and external systems * Support the evolution of the application landscape with pragmatic and implementable guidance * Coordinate stakeholders and support delivery teams in making sound technical decisions * Help initiate and coordinate proofs of concept (PoCs) to validate approaches * Contribute to making and documenting architecture decisions (e.g., ADRs) and best practices * Partner with the infrastructure and cloud competency centre teams to find the best solutions for given use cases This role is ideal for someone with strong technical foundations who wants to grow into an architect role, combining modular design thinking with increasing architectural responsibility., * Support architects and teams in designing modular application architectures using Spring Boot Modulith principles * Promote clear module boundaries, domain-driven structuring, and internal APIs within applications * Provide guidance on structuring applications for maintainability, scalability, and future evolution * Translate requirements into practical, modular solution approaches, * Promote the correct use of internal vs. external APIs, synchronous and event-driven communication * Support consistent interface design and documentation practices * Ensure security is considered in application and integration design, including authentication and secure communication * Promote best practices such as OAuth2 and secure integration fundamentals Proof of Concepts (PoCs) & Validation * Help define, coordinate, and evaluate PoCs * Include security and scalability considerations as part of PoC validation * Provide recommendations based on outcomes Collaboration & Delivery Support * Work closely with DevOps teams, engineers, and stakeholders * Support teams in structuring applications, defining module interactions, and solving integration challenges * Act as a link between architecture and delivery, with growing ownership * Support application evolution toward Azure * Ensure modular applications can evolve toward distributed architectures where needed * Collaborate with the Cloud Competency Centre * Ensure alignment with cloud-native and security best practices ## Related Videos - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) ## Related Articles - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)