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90,000+ live jobsAPI Architect Event-Driven Architecture (EDA)
Remote, Madrid·Full-time·Added today (last checked 13 Nov)
Our summary
- Work mode
- Remote (Madrid)
- Contract
- Full-time
- Spanish
- Expected (ad in Spanish)
- Experience
- 3+ years




Visa options
The ad doesn’t mention sponsorship
Not a refusal, but not a yes. Worth asking in your first message.
Skills
This job advert was originally written in Spanish.
Requirements
What we're looking for
If you have experience in API architecture, service governance, and event-oriented architectures, and you are looking for a new professional challenge in the financial sector, we want to meet you!
- Between 3 and 5 years of experience in API architecture, design, or governance.
- Experience in design and definition of REST APIs and asynchronous architectures.
- Solid knowledge of Swagger/OpenAPI and AsyncAPI (versions 2.x and 3.x).
- Knowledge of event-oriented architectures (Event-Driven Architecture).
- Knowledge of event modeling and Avro data schemas.
- Experience in definition of standards, policies, and API governance.
- Knowledge of security and access control: OAuth, JWT, IAM, ACLs, IdP, mTLS, and certificates.
- Experience in continuous integration (CI/CD) and automation.
- Analytical capacity, documentation, and definition of technical solutions.
Nice to have
- Experience in REST API and event management platforms in Cloud and hybrid environments.
- Knowledge and experience with Apache Kafka.
- Experience with Schema Registry.
- Experience in administration of policies, portals, and certifications for API platforms.
- Knowledge of usage metrics, auditing, and observability.
- Experience in the banking or financial sector.
Pay & benefits
What you'll get
What do we offer?
- Joining Grupo NS and participating in a technological project in the financial sector.
- Architecture and integration project with API and event technologies and platforms.
- 100% remote working modality (Spain).
- Collaborative working environment specialized in architecture and integration of technological solutions.
- Opportunity to participate in governance, security, and evolution initiatives for integration architectures.
The role
At Grupo NS, a technology consultancy specializing in digital transformation projects, we are incorporating an API Architect to participate in a strategic project within the banking sector. The working modality is 100% remote from any province in Spain.
We are looking for a technical profile with experience in the design, definition, and governance of REST APIs and asynchronous architectures (Event-Driven Architecture), who will participate in the definition of standards, security policies, quality, and the lifecycle of APIs and events.
The selected person will collaborate in the evolution and governance of the integration ecosystem, ensuring the quality, traceability, security, and consistency of the integration solutions.
What you'll do
What will your duties be?
Design and definition of APIs and Event-Driven architectures
- Design, definition, and documentation of REST APIs and asynchronous APIs.
- Definition of contracts and specifications using Swagger/OpenAPI and AsyncAPI 2.x and 3.x.
- Modeling and definition of data schemas using Avro.
- Participation in event modeling through Event Storming.
- Definition of Event-Driven architectures, differentiating between events and commands, as well as orchestration and choreography patterns.
- Knowledge and application of SAGA patterns and compensation mechanisms.
API governance and quality
- Definition and maintenance of standards, policies, guides, and best practices for REST APIs and EDA architectures.
- Governance of the API and event lifecycle: versioning, documentation, monitoring, and obsolescence (deprecation).
- Management of API typologies, exposure layers, and usage policies.
- Creation, maintenance, and control of API and event catalogs and inventories by domain.
- Validation of definition quality through reports, metrics, and scoring systems.
- Development and maintenance of automatic validation mechanisms (linters).
- Integration of quality controls into CI/CD processes and automation.
Security and access control
- Definition and application of security policies for REST APIs and events.
- Management of authentication, authorization, and access control mechanisms.
- Application of standards and technologies such as OAuth 2.0, JWT, IAM Policies, and integration with Identity Providers (IdP).
- Management of ACLs, encryption, digital certificates, and mutual authentication via mTLS.
- Guarantee of traceability, auditing, and communication security.
Traceability and observability
- Definition of auditing and traceability mechanisms for APIs and events.
- Tracking of event lineage (Event Lineage).
- Collaboration in observability and monitoring initiatives for the integration ecosystem.
Hiring process
Apply and join Grupo NS!
About Grupo NS
Grupo NS is a Spanish IT services and consulting company founded in Madrid in 2003, offering outsourcing, technology consulting, custom project development, and tailored training programs. Its service lines span cloud, cybersecurity, data, AI, Salesforce, databases, infrastructure, networks, QA and systems, and it states that it collaborates with 12 of the 15 large international IT solutions integrators. The company has grown past €5M in revenue and counts more than 150 people on its team.
For professionals in Spain, Grupo NS is strongly remote-friendly: 98% of its workforce teleworks and the company lets employees choose the work model where they are most productive. It offers free training from day one, flexible compensation, and holds ISO 9001 and ISO 27001 quality and security certifications. Hiring is active across Madrid and Barcelona (its two offices, with Barcelona opened in 2005 as NSCAT) as well as other Spanish locations such as Alicante, Granada, Sevilla, Almería and Tres Cantos, and the company says its international projects help it attract ambitious talent.
- Industry
- IT Services
- Founded
- 2003
- Employees
- 150+
- In Spain
- Madrid, Barcelona
Good to know if you are moving
- 98% of the workforce teleworks, and employees can choose the work model where they are most productive (remote, hybrid or on-site).
- Free training is offered from day one, with development plans and reskilling programs.
- Flexible compensation lets employees personalize benefits to fit their lifestyle and well-being.
- The company says its international projects help it attract talent with global ambitions.
- Open roles are based in Madrid and Barcelona (hybrid or fully remote) as well as other Spanish locations such as Alicante, Granada, Sevilla and Almería.
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