Lead Data Infrastructure Engineer - Hybrid/Remote

The Extravagant Company Oy Ltd; Helsinki; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid work model in Helsinki

Job summary

Exolyt, the leading TikTok analytics platform, seeks a Lead Data Engineer to own the data infra powering billions of data points. You will design, develop, and operate high-throughput pipelines, and build databases and storage systems for reliable analytics.

You will work with the CTO and product teams to translate business needs into production-grade data systems capable of ingestion, transformation, storage, and delivery at scale.

Qualifications

• Proven track record of building and operating data-intensive infrastructure at scale.
• Deep experience designing ETL/ELT pipelines, data warehouses, and data lakes.
• Strong expertise in database design, optimization, and administration across relational and non-relational systems.
• Solid understanding of distributed systems, data modeling, and data architecture patterns.
• Experience with self-hosted infrastructure and open-source data tools.
• Pragmatic engineering mindset focused on reliability and scale.
• 5+ years of hands-on data engineering experience.

Responsibilities

• Design and build scalable ETL/ELT pipelines for high-volume data ingestion and transformation.
• Architect and maintain database systems optimized for analytical and operational workloads.
• Ensure data quality, consistency, and reliability across the data lifecycle.
• Monitor, troubleshoot, and optimize data infrastructure performance.
• Define data modeling strategies and establish engineering best practices.
• Collaborate with product and analytics teams to deliver data that drives decisions.

Skills

ETL/ELT pipelines

Data warehouses

Data lakes

Database design

Distributed systems

Self-hosted infrastructure

Open-source data tools

Reliability & scalability

Hands-on data engineering

Ownership of critical infra

Job description

Exolyt, the leading TikTok analytics platform, seeks a Lead Data Engineer to own the data infra powering billions of data points. You will design, develop, and operate high-throughput pipelines, and build databases and storage systems for reliable analytics.

You will work with the CTO and product teams to translate business needs into production-grade data systems capable of ingestion, transformation, storage, and delivery at scale.