At WATA Factory, we’re looking for a Tech Lead Java who combines strong technical expertise with the ability to lead architectural decisions and support a senior engineering team in long-term projects.
If you enjoy taking technical ownership, working in stable environments, and growing together with an experienced team, we’d love to meet you.

YOUR TASKS

- Technical leadership in the design, development and evolution of backend systems based on Java

- Definition and continuous improvement of system architecture, with a strong focus on scalability, performance and maintainability

- Hands-on development of backend services using Java (experience with Dropwizard is desirable but not mandatory)

- Close collaboration with frontend development using Vue.js and TypeScript

- Design, optimisation and maintenance of databases (MySQL, PostgreSQL, MongoDB and Cassandra)

- Usage of messaging technologies such as Apache Kafka and interaction with caching and search solutions (Redis and OpenSearch)

- Contribution to data-related use cases involving BigQuery and Python (desirable)

- Participation in cloud-based environments (Google Cloud – desirable) and containerised infrastructures (Kubernetes – desirable)

- Ensuring high code quality through testing, automation and modern engineering practices

- Acting as a technical reference within an agile team, supporting decision-making and mentoring

- Long-term involvement in projects, supported by a structured onboarding process lasting up to one year

YOUR PROFILE

- Degree in Computer Science or a related technical field, or equivalent professional experience

- Proven experience as a Java backend developer, ideally in a senior or tech lead role (mandatory)

- Solid experience working with relational and NoSQL databases (MySQL, PostgreSQL, MongoDB and Cassandra).





- Experience with Apache Kafka in messaging-based architectures (desirable)

- Experience with Dropwizard is desirable but not required

- Knowledge of Redis and OpenSearch is desirable

- Experience or interest in data warehousing solutions such as BigQuery and scripting with Python is desirable

- Familiarity with cloud platforms (Google Cloud – desirable) and container orchestration (Kubernetes – desirable)

- Strong understanding of Clean Code principles, scalable architectures and engineering best practices

- Comfortable working in agile environments and collaborating with senior, multidisciplinary teams

- High level of autonomy, structured thinking and clear communication skills

- Fluent English, spoken and written (minimum level B2 – mandatory)

- German is a plus (desirable)

WHAT WE OFFER

- Permanent contract from day one

- Long-term, stable projects with clear technical ownership

- A structured onboarding process of up to one year,fa fa-star ensuring deep understanding of the product, domain and architecture

- Integration into a team of 5 people, composed of senior developers and tech leads

- 30 working days of holiday, plus official German public holidays

- Access to our internal technical library

- Private health insurance

- Weekly technical training sessions

- Adaptable working: from home, the office, or hybrid

- Support from experts specialised in various areas

- No dress code – wear what makes you comfortable

- Friendly, collaborative working environment

- Modern office with high-end hardware and leisure areas

- Flexible working hours

SUMMARY

- Location: Jerez de la Frontera (ES) or remote

- Profile sought: Tech Lead Java

- Contract type: Permanent, full-time

- Team: 5 people (senior developers and tech leads)

- Languages: English (minimum B2). German is a plus

- Salary: According to experience and qualifications

Are you interested?
Please contact us!

📌 Tech Lead Java (España)
🏢 Wata Factory
📍 España