Mid-Level Big Data Developer

We are looking for a Big Data Developer to join a dynamic data team and contribute to the development, maintenance, and optimization of data processing solutions within the Client Contribution platform .

The ideal candidate will have solid experience in Big Data, Spark, SQL, and data transformation , combined with hands-on experience in a modern Big Data environment such as Azure Databricks, Amazon EMR, Hive, or Cloudera . You will work closely with both technical and functional stakeholders in an Agile environment, contributing to the continuous improvement of data solutions and processes.

Key Responsibilities

• Design, develop, maintain, and optimize ETL and data transformation processes .
• Develop and maintain Apache Spark-based data pipelines .
• Contribute to data integration initiatives across the platform.
• Analyze, troubleshoot, and resolve data-related issues.
• Ensure data quality, reliability, and performance across data processing solutions.
• Develop and optimize SQL queries for data extraction, transformation, and analysis.
• Collaborate with functional and technical stakeholders to understand and translate business requirements into effective data solutions.
• Participate in Agile ceremonies and contribute proactively to continuous improvement initiatives.
• Follow DevOps and Continuous Integration practices throughout the development lifecycle.
• Contribute to reporting and analytics solutions using Qlik Sense .

Qualifications

Mandatory Requirements

• 3+ years of professional experience in data development and programming.
• Strong knowledge of SQL , including ANSI SQL, Hive SQL, Spark SQL, or equivalent.
• Good knowledge of Apache Spark and hands‑on experience with at least one programming language:
  • Scala
  • Python
  • Java
• Experience with at least one Big Data environment:
  • Azure Databricks
  • Amazon EMR
  • Hive
  • Cloudera
  • or a similar Spark-based environment.
• Experience with Qlik Sense and reporting solutions.
• Experience working in Agile, Continuous Integration, and DevOps environments.
• Familiarity with tools such as Git, GitHub, Sonar, and Nexus .
• Strong analytical and problem-solving skills.
• Ability to understand and analyze requirements and collaborate effectively with team members.
• Strong teamwork and communication skills.
• English level: B2+ or higher.

Additional Information

What do we offer you?

• Possibility to be part of a multicultural team and work on international projects.

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 6/2019).

Company Description

Company Description

Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultantsin 21 countriesand a turnover of €850M, we are committed to delivering impactful, future‑ready solutions.

Talan at a Glance

Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowermentto 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 revenuethis year.

Our Core Areas of Expertise

• Data & 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 initiativesthrough 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.