Join a high-impact cybersecurity project focused on protecting applications from automated attacks and malicious activity. We are looking for a Senior Data Engineer who thrives in autonomous environments, enjoys solving complex data challenges, and is ready to drive modernization initiatives across scalable data systems.
You will become a core member of a small, highly proactive engineering team working on a large-scale cybersecurity product. The role requires deep involvement in understanding existing systems, including legacy code and interconnected services, identifying inefficiencies and technical gaps, and driving meaningful improvements across the platform. You will collaborate closely with product engineering teams, influence technical decisions, and contribute to both immediate optimizations and long-term platform evolution.
As part of Sigma Software, you will collaborate with experienced international teams and have the opportunity to shape scalable data infrastructure used in cybersecurity products operating at scale. We value ownership, strategic thinking, and technical excellence, offering an environment where engineers can influence architectural decisions, drive meaningful improvements, and continue growing professionally.
CUSTOMER
Our Customer is a global cybersecurity company delivering advanced digital protection solutions for businesses, organizations, and communities worldwide. Operating across multiple cybersecurity domains, the company focuses on identifying vulnerabilities, preventing threats, and strengthening digital resilience through scalable and reliable security products.
PROJECT
The project focuses on developing and improving a cybersecurity solution designed to protect applications from automated attacks and malicious traffic. The team works on scalable, high-performance data infrastructure powering security analytics, monitoring, and detection capabilities. The environment combines modernization of legacy systems with the development of reliable and scalable data workflows, requiring strong ownership and close collaboration with cross-functional engineering teams.
Key Technologies: Snowflake, DBT, SQL, Python, Elastic Stack, Airflow
Maintain and enhance existing data processes with a focus on reliability, scalability, and performance optimization
Analyze and deeply understand existing data models, workflows, tables, and processing jobs
Identify technical gaps, bottlenecks, inefficiencies, and opportunities for architectural improvements
Design, optimize, and support large-scale data pipelines and transformation processes
Drive modernization initiatives across the data platform and contribute to long-term architectural evolution
Optimize complex SQL queries and improve data processing latency and efficiency
Collaborate with product engineering and cross-functional teams on technical solutions and implementation strategies
Contribute to both short-term delivery goals and long-term platform development initiatives
Ensure adherence to best practices in data engineering, system reliability, and performance optimization
Participate in technical discussions, solution design, and continuous improvement initiatives
5+ years of commercial experience in Data Engineering
Expert-level Python skills
Expert-level SQL skills with practical experience optimizing complex queries for performance and scalability
Strong hands-on experience with DBT for data transformation and modeling
Solid understanding of database concepts, including DDL, DML, indexing, normalization, and advanced SQL techniques
Hands-on experience working with Snowflake
Experience with Elastic Stack technologies
- Proven experience designing, building, and maintaining large-scale data pipelines
- Strong analytical thinking and problem-solving skills
- Ability to work independently in a high-autonomy engineering environment
- Experience driving technical initiatives from idea through implementation
- Strong communication and collaboration skills
- Upper-Intermediate English level or higher
WILL BE A PLUS
Experience with Airflow for workflow orchestration
Job description provided by Sigma Software.
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