Lead Java Developer en Spain

Acid Tango is a digital product studio. We transform our clients' ideas into digital products, with a focus on digital innovation and bringing disruptive ideas to life. In every project, we search for the perfect harmony between simplicity, aesthetics, and technology.
Si le interesa solicitar este empleo, por favor, asegúrese de cumplir los siguientes requisitos que se enumeran a continuación.

We're currently looking for a Lead software developer with solid Java expertise to join us. You'll bring experience in complex architectures and large-scale data systems, and you'll lead a team of talented developers building products that matter.

What you'll do

• Inspire, motivate, and lead senior and junior developers, fostering a culture of technical excellence and continuous learning.
• Work closely with our design team and clients to deliver beautiful, thoughtful, and effective products that have a real impact on their business.
• Drive the technical evolution of our clients' projects, from architectural decisions to day-to-day implementation.
• Champion high-quality engineering practices: TDD, clean code, code reviews, pair programming, and continuous refactoring.
• Define and evolve software architectures based on Domain-Driven Design (DDD) and Hexagonal Architecture principles, ensuring our codebases stay maintainable, testable, and aligned with business needs.
• Prioritize and coordinate code improvement initiatives across the team.
• Bring your ideas and knowledge to help us keep raising the bar.

What we're looking for

• 5+ years of experience in software development with Java.
• Strong command of the Spring Boot framework.
• Passion for software craftsmanship and clean, maintainable code.
• Deep knowledge of object-oriented programming, algorithms, and software architecture.
• Hands-on experience with Test-Driven Development (TDD) as a daily working practice.
• Solid understanding of Domain-Driven Design (DDD): bounded contexts, aggregates, ubiquitous language, and strategic design.
• Practical experience designing and building applications with Hexagonal Architecture (Ports & Adapters) or similar approaches such as Clean Architecture or Onion Architecture.
• Significant back-end experience with Java, with a clear understanding of its strengths and trade-offs.
• Experience designing and exposing APIs (REST and ideally event-driven).
• Solid SQL skills and working knowledge of PostgreSQL, plus familiarity with non-relational databases such as Redis and MongoDB.
• Confident with Git, Linux environments, and the command line.

Nice to have

• Experience with CQRS, Event Sourcing, or asynchronous messaging (Kafka, RabbitMQ).
• Exposure to microservices and distributed systems.
• Familiarity with CI/CD pipelines and observability tooling.

What we offer

• Competitive salary by level: Senior (35–45K), Architect (45–55K), Tech Lead (55–65K).
• Performance-based bonus of up to 12% of your salary.
• €1,000/year education budget to keep growing.
• Flexible working hours and the option to work from home.
• €300 to improve your home setup.
• Challenging projects with a focus on innovation.
• A dynamic, diverse team that wants to leave a mark.
• International clients with thousands of users.

If you think you'd be a good fit, we'd love to talk. xsgfvud ;-)