Mid-level Backend Spark developer

Talan Group; Województwo mazowieckie; On-site; PLN 212,134 - 296,987; Full time

Benefits offered by this job

Career development opportunities

Training opportunities in finance and technology

Challenging multicultural environment

Exposure to large-scale financial IT systems

Job summary

Talan Group is seeking a Mid-Level Backend Spark Developer to join its Markets technology team in Poland. This hybrid position in Warsaw focuses on developing and maintaining data processing solutions using Apache Spark and SQL technologies. Candidates should have 1.5 to 2 years of experience, strong SQL skills, and knowledge of Spark. The role offers a permanent, full-time contract with opportunities for career development in a multicultural environment and international projects.

Qualifications

• 1.5 to 2 years of experience in data engineering or software development.
• Strong knowledge of SQL including ANSI SQL, Hive SQL, Spark SQL.
• Solid understanding of Apache Spark technology.
• Programming experience in Scala, Python, or Java.
• Experience with version control systems like Git.
• English proficiency at a B2+ level or higher.
• Strong analytical thinking and problem-solving skills.
• Ability to work effectively in a team environment.
• Proactive attitude and willingness to take initiative.

Responsibilities

• Develop, maintain, and optimize data pipelines using Apache Spark.
• Write efficient and scalable queries using SQL.
• Collaborate with teams to refine requirements.
• Participate in code reviews and uphold best coding practices.
• Support data processing across distributed systems.
• Contribute to process improvements.
• Ensure quality deliverables and timely project execution.

Skills

Data engineering or software development experience

Strong knowledge of SQL

Solid understanding of Apache Spark

Programming experience in Scala, Python or Java

Experience with Git

English proficiency at B2+ level or higher

Analytical thinking and problem-solving skills

Ability to work in a team environment

Proactive attitude

Tools

Apache Spark

SQL (ANSI SQL, Hive SQL, Spark SQL)

Git

Azure Databricks

Amazon EMR

Cloudera

Power BI

Job description

Job Description

We are looking for a Mid-Level Backend Spark Developer to join our Markets technology team. The successful candidate will contribute to the development and maintenance of data processing solutions using Spark and SQL-based technologies. This role involves working in a collaborative, agile environment, supporting data-driven initiatives, and improving existing systems through proactive analysis and teamwork.

The position is onsite and may be assigned to either the Málaga hub or the Poland hub, depending on business needs and geographic diversity guidelines.

Key Responsibilities

• Develop, maintain, and optimize data pipelines using Apache Spark
• Write efficient and scalable queries using SQL (ANSI SQL, Hive SQL, Spark SQL)
• Collaborate with cross-functional teams to analyze and refine business and technical requirements
• Participate in code reviews and ensure best practices in coding and version control using Git
• Support data processing and transformation tasks across distributed systems
• Contribute to continuous improvement by proactively identifying inefficiencies and proposing solutions
• Work closely with team members to ensure high-quality deliverables and timely project execution

Qualifications

Required Skills

• 1.5 to 2 years of experience in data engineering or software development
• Strong knowledge of SQL (ANSI SQL, Hive SQL, Spark SQL, or similar)
• Solid understanding of Apache Spark
• Programming experience in Scala, Python, or Java
• Experience with Git or similar version control systems
• English proficiency at B2+ level or higher
• Strong analytical thinking and problem-solving skills
• Ability to work effectively in a team environment
• Proactive attitude and willingness to take initiative

Nice to Have

• Experience with Azure Databricks, Amazon EMR, or Cloudera
• Understanding of Hive
• Experience with reporting tools such as Power BI
• Exposure to data visualization and reporting concepts

Additional Information

• Hybrid position based in Warsaw, Poland.
• Permanent, full-time contract with career development opportunities.
• Chance to work in a challenging, multicultural environment with international projects.
• Exposure to large-scale financial IT systems and cross-country operations.
• Training opportunities to develop new skills in finance, technology, and data management.

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).