Senior Spark/Scala Developer

Talan – Positive Innovation
Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and 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 empowerment to 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 revenue this 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 initiatives through 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.
Job Description
We are focusing on developing global solutions across different geographical locations for various regulatory reporting needs. Our main aim is to create efficient, user-friendly and scalable solutions that could be used by different teams in our company. We believe that strong and robust data products could mitigate risks and improve our capability inside our Group.

We run our projects in SCRUM/Agile methodology as we believe that continuous delivery that enables quick feedback loop is the key to our success and satisfaction of our clients. To achieve our goals, we use Scala, Python, Java, SQL/HQL, Airflow, ControlM, Jenkins, Github, Hive, Databricks, Azure, S3, Maven. To ensure the highest quality we use Unit Tests with Quality tests, Automation and Pull Requests review.

WHAT YOU WILL BE DOING

We are looking for a Tech Lead in Data Engineering team with a strong background in Spark/Scala technology to lead the design and delivery of cutting-edge data-driven solutions. This role combines hands-on engineering with technical leadership – you will both architect scalable data systems and guide a team to successful implementation.

As a Technical Leader, your will:

• Lead end-to-end technical delivery of data engineering projects.
• Architect, design, and implement scalable data pipelines and platforms.
• Optimize workflows for data ingestion, processing, and storage (Spark, Airflow, Cloudera, DataBricks, Hive).
• Develop and maintain data lake solutions for structured and unstructured data.
• Collaborate with global teams (business, data, and technology) to align solutions with organizational objectives.
• Oversee code quality, CI/CD pipelines, versioning, and release management.
• Write and review high-quality Scala/Spark code and contribute to automation.
• Mentor and support engineers, fostering technical excellence and growth.
• Ensure delivery is aligned with regulatory and compliance requirements.
• Hands-on experience with testing Big Data solutions - unit tests, integration tests, E2E tests.
• Understanding AI tools and techniques and how they can contribute to increasing development efficiency.

Qualifications
Required qualifications

• 7+ years of experience in Big Data systems and data management.
• 3+ years of hands-on experience with Scala/Spark.
• Hands-on with Big Data technologies like Spark, Cloudera, Data Platform, Airflow, Hive.
• Excellent understanding of dimensional data and data modeling techniques.
• Experience implementing and deploying solutions in cloud environments.
• Ability to work independently and take ownership of project deliverables.
• Fluent in English (at least C1 level).
• Bachelor's degree in technical or mathematical studies.
• Strong communication skills, at least 2 years leading development teams.

Preferred qualifications

• CI/CD and orchestration tools: GitHub Actions, Airflow, Control-M, Bash scripting..
• Knowledge of Databricks, Kafka, Docker, Kubernetes, OpenShift
• Familiarity with cybersecurity practices, code quality (Sonar), code security (Fortify) and SDLC.
• Experience with microservices architecture, REST APIs, frontend technologies (React, NextJS) and backend technologies (NodeJS).

Additional Information
What do we offer you?

• Permanent, full-time contract.
• Training and career development.
• Benefits and perks such as private medical insurance LuxMed, lunch pass card Pluxee, MultiSport Plus card.
• Possibility to be part of a multicultural team and work on international projects.
• Hybrid position based in Warsaw, Poland.
• Possibility to manage work permits.

If you have read this far and you are looking forward to joining this challenge, do not hesitate to apply... we would be delighted to meet you