Fullstack Developer (Java and Angular)

Fullstack Developer (Java and Angular)

Kairos DS
Kairos DS
Remote, SpainCompetitiveRemoteAdded 1 month agoSenior · 5+ years🇬🇧English: Required

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About the role

Your mission at Kairós

We are looking for a passionate and strategic Senior Fullstack Engineer to join our team to bring technical solidity, lead the design of robust solutions, and ensure excellence in our distributed systems.

Here, you won't just write lines of code; you will shape scalable architectures, ensure service resilience, and do it alongside a team that supports you every step of the way.

What you'll do

  • Backend Mastery: You will design, develop, and optimize robust services with a primary focus on backend architecture, leading complex software solutions.
  • Technical Ownership: You will take full ownership of services from start to finish, applying your high autonomy and technical decision-making skills to ensure product success.
  • Cloud and Architecture Evolution: You will implement and manage microservices-based systems, ensuring proper containerization and an efficient deployment flow.
  • Connectivity and Messaging: You will configure and optimize communication between distributed systems through event-driven and streaming architectures.
  • End-to-End Vision: You will collaborate and integrate your developments with frontend teams, ensuring a global and fluid understanding of the entire application lifecycle.
  • Quality and Security Culture: You will ensure technical excellence by implementing unit and integration tests, as well as using static analysis and security tools.
  • Global Collaboration: You will work hand in hand with multidisciplinary teams (frontend, product, operations) in distributed and international environments.
  • Commitment and Resilience: You will participate in on-call availability schemes, ensuring the continuity and stability of critical business services.

Nice to have

  • Advanced experience with event-driven architectures (Advanced Kafka) and managing Kubernetes in production.
  • Use and configuration of NGINX or API Gateways.
  • Integration with Azure AD or similar identity management systems.
  • Experience in Legacy integration (SOAP, WSO2, OSB) and knowledge of integration or batching systems (SSIS or equivalents).
  • Experience working in major cloud environments (Azure, AWS, etc.).
  • Exposure or participation in initiatives focused on AI and automation.

What you'll get

Benefits that make a difference

Professional growth worth it

  • Continuous corporate training.
  • Free English classes in small groups.
  • Mentoring and constant personal support.
  • Participation in conferences, events, and technology communities.

Balance and Real Flexibility

  • 23 days of vacation + December 24 and 31 off.
  • 1 day for professional events and 3 personal days for work-life balance.
  • 100% remote work: You will work remotely, with some flexibility to adjust your schedule, although it will depend on the project you are on.

Benefits and Personal Care

  • Flexible compensation (Cobee) for meals, transportation, training, and childcare.
  • Health insurance with Cigna, Adeslas, or Sanitas.
  • Wellness program for emotional and psychological well-being.

How you'll work

remote

About the company & team

Who are we?

We are  Kairós, a different kind of technology company. Yes, we help our clients with their digital and methodological transformation challenges, but what truly defines us is how we do it: putting people at the center.

We have been recognized as a Great Place To Work company since 2019, for the sixth consecutive year, ranking 5th in 2024. Our values of courage, empathy, innovation, and joy are how we work every day. We are more than 850 people (developers, data engineers, strategists...) and we are now looking for someone to join this brilliant and diverse team.

At Kairós, you are not just another number. We know you by name, we care about your personal balance, and we want you to grow with us.

Technology

Technical Expertise (Must-Have)

What will make you successful

  • Experience: Minimum +5 years of experience in software development, with a very clear focus on the backend.
  • Backend Core: Solid and demonstrable experience in Java and the Spring Boot ecosystem.
  • Architecture: Deep experience in microservices architectures and distributed systems.
  • Containers and Orchestration: Proven experience working with Kubernetes and Docker (both in containerization and deployment).
  • Event Streaming: Real experience with Kafka or similar messaging systems.
  • APIs and Data: Extensive knowledge in designing, creating, and consuming REST APIs. Experience with relational databases (SQL: Oracle, MySQL, PostgreSQL...) and non-relational databases (NoSQL: MongoDB, etc.).
  • DevOps & CI/CD: Practical experience in continuous integration and deployment environments.
  • Testing and Quality: Solid familiarity with unit and integration testing, as well as the use of code quality and security tools (such as Sonar, Snyk, etc.).
  • Fullstack Profile: Basic or intermediate experience in the frontend ecosystem with Angular and JavaScript / TypeScript to ensure proper integration with the team.
  • Fluent English

Soft Skills

  • High autonomy and sound technical decision-making.
  • Strong sense of ownership over the developments and services you lead.
  • Excellent communication skills with multidisciplinary profiles.
  • Innate orientation toward software quality, scalability, and resilience.
  • Open mindset and comfortable working in international and distributed environments.

Additional information

#TRY #THINK #FEEL #ENJOY

At Kairós, we firmly believe in the importance of equality and diversity in the workplace. We are committed to creating an inclusive and respectful environment where all employees feel valued and have the opportunity to reach their full potential, regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or any other characteristic protected by law.

Apply to the job and join the team of Kairoseros and Kairoseras!

This job was automatically translated to English, .

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