Senior Big Data Engineer

What Youll Achieve:

• Design develop and maintain scalable data processing solutions across on-premises and cloud environments using Python and Apache Spark.
• Optimize and fine-tune Spark jobs for performance including resource utilization shuffling partitioning and caching to ensure maximum efficiency in large-scale big data environments.
• Design and implement scalable fault-tolerant data pipelines with end-to-end monitoring alerting and logging.
• Leverage AWS cloud services (2 years preferred) to build and manage data pipelines and distributed processing workloads.
• Develop and optimize SQL queries across relational and data warehouse systems (RDBMS/Data Warehouse).
• Apply design patterns and best practices for efficient data modeling partitioning and distributed system performance.
• Use Git (or equivalent) for source control and maintain strong unit and integration testing practices.
• Collaborate with Product Owners partners and multi-functional teams to translate business requirements into technical solutions.
• Demonstrate strong analytical skills with the ability to extract actionable insights from large datasets and support data-driven decision-making.
• Mentor junior engineers conduct code reviews and contribute to establishing engineering best practices and standards.

Who You Are:

• 5 years of software development experiencein a scalable distributed or multi-node environment.
• Proficient in programming withScala Python or Java; comfortable buildingdata-driven solutions at scale.
• Significant experience withApache Sparkand exposure toHadoop Hive and related big data technologies.
• Demonstrated experience withcloud platforms(AWS preferred) and an interest incloud migration projects.
• Eager to deepen your expertise with theDatabricks platform.
• Exposure to modern data tools and frameworks such asKubernetes Docker and Airflow.
• Strong problem-solving skills with the ability toown problems end-to-endand deliver results.
• Consultative mentality comfortable taking initiative building relationships communicating broadly and tackling challenges head-on.
• Collaborative teammate with an eagerness to learn from peers and mentors while contributing to a culture of growth.
• Motivated to grow your career within a dynamic innovative company.

What youll bring:

• BA/BS in Computer Science or related field.
• At least 5 years of experience as a big data software developer.
• Experience in Machine Learning including model development feature engineering or integrating ML workflows into data pipelines.
• Experience with Databricks including Notebooks Delta Lake Jobs Pipelines and Unity Catalog preferred.
• Proficiency with the ELK stack (Elasticsearch Logstash Kibana) for real-time search log analysis and visualization preferred.
• AWS Databricks or Spark certification a plus.

Click here to view how Epsilon transforms marketing with 1 View 1 Vision 1 Voice.

When you join Epsilon well create something EPIC together.Were a global leader in data and identity with deep expertise in digital media clean rooms customer data platforms loyalty and marketing services. Positioned at the center of Publicis Groupe Epsilon helps brands deliver personalized experiences at scale and build lasting customer relationships by unlocking the full potential of data and identity. Epsilon operates in 30 countries across EMEA the Americas and APAC with more than 8000 employees.

Check out a few of these resources to learn more about what makes Epsilon so EPIC:

Our Culture: at Epsilon: has five values that define our culture and guide us as we create value for our clients our people and consumers. We seek candidates who align with our company values demonstrate them and make them meaningful in their day-to-day work:

• Act with integrity. We are transparent and have the courage to do the right thing.
• Work together to win together. We believe collaboration is the catalyst that unlocks our full potential.
• Innovate with purpose. We shape the market with big ideas that drive big outcomes.
• Respect all voices. We embrace differences and foster a culture of connection and belonging.
• Empower with accountability. We trust each other to own and deliver on common goals.

Because You Matter

As an Epsilon employee you deserve perks and benefits that put you your family and your finances first. Our benefits encompass a wide range of offerings including but not limited to:

• Time to recharge: Flexible time off (FTO) 14 paid holidays paid sick time
• Family well-being: Parental/new child leave childcare & elder care assistance adoption assistance
• Extra perks: Comprehensive health coverage 401(k) tuition assistance commuter benefits professional development employee recognition charitable donation matching health coaching and counseling

Epsilon benefits are subject to eligibility requirements and other terms.

Epsilon is an Equal Opportunity Employer. Epsilons policy is not to discriminate against any applicant or employee based on actual or perceived race age sex or gender (including pregnancy) marital status national origin ancestry citizenship status mental or physical disability religion creed color sexual orientation gender identity or expression (including transgender status) veteran status genetic information or any other characteristic protected by applicable federal state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants who need accommodations to complete the application process. Please reach out to to request an accommodation.

For San Francisco Bay and Los Angeles Areas: Epsilon will consider qualified applicants with criminal histories for employment in a manner consistent with the City of Los Angeles Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections 4901-4919 commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

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