Senior Data Software Engineer

EuroPython; Kraków; Hybrid; PLN 224,000 - 336,000; Full time

Job summary

ActiveCampaign is expanding its Kraków office and seeks a senior data software engineer to architect and build scalable data pipelines and modern data stack components. You will own schema design, implement Terraform-based infrastructure, and ensure production-grade reliability with automated testing and CI/CD.

You will collaborate with Data Science and AI teams to deploy feature stores and MLOps pipelines, while maintaining observability in Kubernetes, Docker, and Airflow environments.

Qualifications

• 5+ years of professional software engineering experience building production-grade data systems.
• Deep Data Architecture expertise, with ability to design modern data stack components and schemas.
• Proficiency in Infrastructure as Code, specifically using Terraform.
• A high level of software rigor, including automated testing, CI/CD, and best practices.
• Expert-level SQL skills (particularly MySQL).
• Experience in Python, AWS (S3, Aurora, RDS), Snowflake, Apache Spark, and DBT.
• Exceptional communication skills to distill complex technical concepts for diverse audiences.

Responsibilities

• Architect and Build Pipelines by designing, developing, and maintaining high-throughput data pipelines across our ecosystem.
• Execute Data Modeling and Schema Design using DDL and DML for optimized data structures.
• Champion Engineering Excellence with automated testing, CI/CD pipelines, and Infrastructure as Code (Terraform).
• Collaborate Cross-Functionally with Data Science and AI teams to engineer feature stores and automated MLOps pipelines.
• Drive System Monitoring and health checks for containerized environments (Kubernetes, Docker, Airflow).
• Act as a Technical Advisor translating complex data architectures into clear guidance for stakeholders.

Skills

Data architecture

SQL expertise

Terraform IaC

CI/CD

Python

AWS

Communication

Kubernetes

Airflow

Tools

Terraform

MySQL

Snowflake

Airflow

DBT

Kubernetes

Looker

Spark

Job description

• Architect and Build Pipelines by designing, developing, and maintaining high-throughput data pipelines that seamlessly transform data across our ecosystem
• Execute Data Modeling and Schema Design, utilizing DDL and DML operations to optimize data structures for both performance and long-term scalability
• Champion Engineering Excellence by implementing automated testing, CI/CD pipelines, and Infrastructure as Code (Terraform) to ensure system health and reliability.
• Collaborate Cross-Functionally with Data Science and AI teams to engineer feature stores and automated MLOps pipelines, moving cutting-edge research into live production environments
• Drive System Monitoring and health checks, ensuring our containerized and orchestrated environments (Kubernetes, Docker, Airflow) run at peak efficiency.
• Act as a Technical Advisor to stakeholders, translating complex data architectures into clear, non-technical conversations that guide business decisions

Technical environment:

• Databases: MySQL, Amazon Aurora, Amazon RDS, PostgreSQL
• Data Storage and Analytics: AWS S3, Apache Iceberg, Snowflake, Apache Druid, Looker
• Data Processing and Transformation: Apache Spark, DBT
• Infrastructure as Code: Terraform
• Containerization and Orchestration: Kubernetes, Docker, Airflow

The Ideal Candidate Will Bring:

• 5+ years of professional software engineering experience, with a proven track record of building and maintaining production-grade data systems.
• Deep Data Architecture expertise, with the ability to design modern data stack components and schemas that balance immediate performance with future growth.
• Proficiency in Infrastructure as Code, specifically using Terraform to manage and deploy your own infrastructure.
• A high level of software rigor, including a strong background in automated testing, CI/CD, and general software engineering best practices
• Expert-level SQL skills (particularly MySQL), with a focus on optimizing complex queries for maximum performance.
• Experience in a modern technical environment, ideally having worked with Python, AWS (S3, Aurora, RDS), Snowflake, Apache Spark, and DBT
• Exceptional communication skills, with the talent to distill complex technical concepts into clear, actionable insights for both technical and non-technical peers

Compensation:zł 224,000 - 336,000 (per year salary)

This is an exciting time to join ActiveCampaign as we build out our new office in Poland. You will be a large part of developing our office culture in this new Krakow hub location.