Data Engineer in Barcelona or Remote


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Job Description

We are looking for a Data Engineer with at least 3 years of professional experience and a solid technology background using Java or Python as a primary language.

A little bit about us

Leadtech has been fostering and developing innovative digital businesses across several industries since 2009. It has since then expanded to a team of over 500 committed employees working all over Spain. We are thrilled to have more than 23 nationalities working together and very proud to see that our products and services are enjoyed by millions of users monthly around the globe.


  • Design and implement a Kafka-based data architecture on AWS for ingestion, processing, and distribution of real-time data.
  • Collaborate with development and analytics teams to understand and fulfill the company's data requirements.
  • Develop efficient and scalable data pipelines for data transformation and enrichment.
  • Implement monitoring and alerting mechanisms to ensure the integrity and availability of data streams.
  • Work with the operations team to optimize the performance and efficiency of the data infrastructure.
  • Automate management and maintenance tasks of the infrastructure using tools such as Terraform, Ansible, etc.
  • Stay updated on best practices and trends in data architectures, especially in the realm of real-time data ingestion and processing.


You’re our perfect candidate if you:

  • Bachelor's degree in Computer Science, Software Engineering, or a related field (equivalent experience is valued).
  • At least 3 years of programming experience with Java / Python
  • Development with cloud services, especially Amazon Web Services
  • Demonstrable experience in designing and implementing data architectures based on Kafka in cloud environments, preferably AWS.
  • Deep understanding of distributed systems and high availability design principles.
  • Experience in building and optimizing data pipelines using technologies like Apache Kafka, Apache Flink, Apache Spark, etc., including real-time processing frameworks such as Apache Flink or Apache Spark Streaming.
  • Excellent communication and teamwork skills.
  • Ability to independently and proactively solve problems.

Extra bonus if:

  • Experience with other streaming platforms such as Apache Pulsar or RabbitMQ.
  • Familiarity with data lake architectures and technologies such as Amazon S3, Apache Hadoop, or Apache Druid.
  • Relevant certifications in cloud platforms such as AWS (optional).
  • Understanding of serverless architecture and event-driven systems
  • Previous professional experience in FinTech / online payment flows
  • Experience with data visualization tools like Tableau, Power BI, or Apache Superset.


Perks of being one of us:

  • Top-notch private health insurance — includes dental and psychological services
  • Full-time, permanent contract
  • Flexible time off, no blackout dates, plus your birthday, Christmas’ Eve and New Year’s Eve off
  • Remote work OR come into the office if you prefer!
  • Flextime (7 – 9:30 a.m. / 3:30 – 7:30 p.m)
  • Free Friday afternoons (a 7-hour workday!) + 35-hour week in July and August (free afternoons here we come!)
  • Enhanced career path designed just for you
  • External training budget
  • Other: ticket restaurant, nursery tickets
  • Budget for team-building activities
  • We celebrate all company landmarks
  • And when you come into the office, you’ll get free coffee and snacks, fresh fruit, and can enjoy our game room and the cool terrace overlooking the Mediterranean

Sounds good? Apply now! We’re looking forward to getting to know you.

Equal Employment Opportunity Employer

Leadtech is an Equal Employment Opportunity (EEO) Employer, which means we encourage applications from people with different backgrounds, interests, and personal circumstances. Our team welcomes applicants regardless of their race, gender, age, religion, nationality, sexual orientation, and/or disabilities. All we need is your high energy, skills, and willingness to be part of a great project!


You'll have the flexibility to choose whether you'd like to come to the office every day, from time to time, or work fully remote. We want you to find the best combination for you.

If you prefer to be surrounded with amazing people, our exceptional office is in Barcelona's Blue Building, located right on the city's seafront. Besides our stunning views, you'll enjoy our office perks such as free fruit, snacks, and coffee and you'll also be able to take part in our Mario Kart and table tennis competitions.

The personal data you provide will be used to manage your candidacy for the corporate selection processes that fit your profile. If you wish, you can exercise your rights of access, rectification or cancellation by sending a letter to Avenida Litoral, 12-14, 5ta planta, Barcelona 08005, or emailing us at, including a document that validates your identity.


About Leadtech

  • Agency

  • Tech Start-up

  • Barcelona

  • 50-200

  • 2007

At Leadtech, we work hard... and play harder! Our mission is to empower clients and employees to achieve its goals in the online business world.

Since 2007, we have been fostering innovative and creative techniques across a multitude of industries, making us pioneers in online project management.

Leadtech is dedicated to constant improvement, as well as inspiring new ideas and methods daily, for both the world in which we live and the future to come.

We think big... and work bigger, and that's why we do business internationally with over 100 passionate professionals who speak over 15 languages fluently. A global team of focused experts in a range of fields:

We analyze, we socialize, we write, we code, we design, we calculate, we decide, we collaborate, we generate, we engage, we program, we create… The real question is what don’t we do?!

With a truly modern approach to company culture, our values, diversity, flexibility and an active work-play balance are what make Leadtech unique.

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