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# Senior Java/Kafka Developer

- **Company:** Talan SAS
- **Location:** Madrid, Spain
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Agile Methodology, Artificial Intelligence, Amazon Web Services, Application Services, Big Data, Cyber Security, Databases, Data Integration, Data Systems, Java Platform Enterprise Edition (J2EE), IBM Maximo, Java Persistence API, PostgreSQL, Microsoft Software, MongoDB, Oracle (Applications), Scrum Methodology, Salesforce.Com, SAP (Applications), Strategies of Testing, Openapi, Spring-boot, Generative AI, Backend, Apache Kafka, Reactive Programming, Functional Programming, Api Design, Microservices
- **Published:** September 28, 2026
- **Apply:** https://www.buscojobs.com.es/senior-java-kafka-developer-en-madrid-ID-372488829

## About the Role

Mandatory Technical Knowledge
Minimum of 4 years of experience in a similar role.
Advanced J2EE, Springboot and Apache Kafka expertise is mandatory Microservices architecture, Spring Boot, Functional Programming, Java (Version 8 and above), JPA, and Testing methodologies (TDD or BDD).
Software Design and Architecture patterns.
Experience with Databases (PostgreSQL, Oracle, MongoDB, etc.).
Familiarity or working experience with Agile Methodologies (Scrum).
English language proficiency: Minimum B2 level.
Nice to Have / Desirable
Basic notions of API design and specification (OpenAPI 3 / OAS3).
Any additional technical knowledge or skills that can contribute value to the project will be highly appreciated.
Basic knowledge of Reactive Programming is highly valued.

## Description

Talan is an international consulting group specializing in innovation and business transformation through technology.With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.Talan at a GlanceHeadquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients.Over the past 22 years, we've built a strong presence in the IT and consulting landscape, and we're on track to reach €1 billion in revenue this year.Our Core Areas of ExpertiseData & Technologies:We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.Cloud & Application Services:We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.Management & Innovation Consulting:We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.Talan - Positive InnovationTalan is an international consulting group specializing in innovation and business transformation through technology.With over 7,200 consultants in 21 countries and a turnover of €850M, we are committed to delivering impactful, future-ready solutions.Talan at a GlanceHeadquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients.Over the past 22 years, we've built a strong presence in the IT and consulting landscape, and we're on track to reach €1 billion in revenue this year.Our Core Areas of ExpertiseData & Technologies:We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.Cloud & Application Services:We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.Management & Innovation Consulting:We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.We work with major global clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.Job DescriptionWe are looking for a Senior Developer to join our team and contribute to a high-performing backend project within theBanking Industry .On-Call Availability (On-Call Shift System)Mandatory 24/7 On-Call Rotation:You will be required to participate in a rotating on-call shift schedule from Monday to Sunday.What this means:Thisdoes not mean you will be actively working 24/7or during late-night shifts.Instead, you will beon standbyoutside of standard working hours, meaning you must be reachable and available to log in and resolve critical system incidents only if they arise.Frequency:The approximate rotation frequency isone full week (7 consecutive days) every 3 to 4 months , depending on the team's internal calendar.QualificationsMandatory Technical KnowledgeMinimum of 4 years of experience in a similar role.Advanced J2EE, Springboot and Apache Kafka expertise is mandatory Microservices architecture, Spring Boot, Functional Programming, Java (Version 8 and above), JPA, and Testing methodologies (TDD or BDD).Software Design and Architecture patterns.Experience with Databases (PostgreSQL, Oracle, MongoDB, etc.).Familiarity or working experience with Agile Methodologies (Scrum).English language proficiency: Minimum B2 level.Nice to Have / DesirableBasic notions of API design and specification (OpenAPI 3 / OAS3).Any additional technical knowledge or skills that can contribute value to the project will be highly appreciated.Basic knowledge of Reactive Programming is highly valued.Additional InformationWhat do we offer you?Full-time or B2B contract Remote within Spain Time zone.Smart Office Pack so that you can work comfortably from home.Training and career development.Benefits and perks such asprivate medical insurance , life insurance, Language lessons, etc Possibility to be part of a multicultural team and work on international projects.If you are passionate about data, development & tech, we want to meet you !Talan Spain's commitment to non-discrimination based on gender, race, ideology, or any other reason, in accordance with the company's "Equality Plan" and the current regulations on gender equality between women and men (Royal Decree-Law ******).#J-*****-Ljbffr