Join a high-impact cybersecurity project where data engineering directly contributes to 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.
As part of Sigma Software, you will collaborate with experienced international teams, influence architectural decisions, and work with modern data technologies in a remote-friendly environment aligned with the EU/Ukraine timezone.
We value proactive engineers who combine technical excellence with ownership and strategic thinking. This role offers the opportunity to contribute to cybersecurity products used at scale while growing within a supportive and people-focused company culture.
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.
Job DescriptionThe project is focused on developing and improving a solution designed to safeguard applications from automated attacks and malicious traffic. The team works on scalable and high-performance data infrastructure supporting security analytics, monitoring, and detection capabilities. The environment combines legacy system modernization with the development of reliable and scalable data workflows, requiring strong ownership and close collaboration with cross-functional engineering teams.
RESPONSIBILITIES:
- Maintain and enhance existing data processes with a focus on reliability, scalability, and performance optimization
- Analyze and fully understand existing data models, tables, workflows, and processing jobs
- Identify technical gaps, bottlenecks, inefficiencies, and opportunities for system improvements
- Design, optimize, and support large-scale data pipelines and transformation processes
- Drive modernization initiatives across the data platform and implement architectural improvements
- Optimize complex SQL queries and improve data processing latency
- Collaborate with product engineering teams to align on technical solutions and implementation strategies
- Contribute to both short-term delivery goals and long-term platform evolution
- Ensure adherence to best practices in data engineering, performance optimization, and system reliability
- 5+ years of commercial experience in Data Engineering
- Expert-level SQL skills with hands-on experience optimizing complex queries for performance and scalability
- Strong practical experience with DBT for data transformation and modeling
- Solid understanding of database concepts, including DDL, DML, and advanced SQL
- Hands-on experience with Snowflake
- Experience working with Elastic stack technologies
- Proven experience designing, building, and maintaining large-scale data pipelines
- Strong analytical and problem-solving skills
- Ability to work independently in a high-autonomy environment
- Experience driving technical initiatives from idea to implementation
- Strong communication and collaboration skills
- Upper-Intermediate English level
WILL BE A PLUS:
- Experience with Airflow for workflow orchestration
- Experience in cybersecurity or security-related products
- Experience modernizing legacy data systems and architectures
Timezone: EU/Ukraine
Skills Required
- 5+ years of commercial experience in data engineering
- Expert-level SQL skills, including optimization of complex queries for performance and scalability
- Strong practical experience with DBT for data transformation and modeling
- Knowledge of database concepts, including DDL, DML, and advanced SQL
- Hands-on experience with Snowflake
- Experience with Elastic Stack technologies
- Experience designing, building, and maintaining large-scale data pipelines
- Strong analytical and problem-solving skills
- Ability to work independently in a high-autonomy environment
- Experience driving technical initiatives from idea to implementation
- Strong communication and collaboration skills
- Upper-Intermediate English level
- Experience with Airflow for workflow orchestration
- Experience in cybersecurity or security-related products
- Experience modernizing legacy data systems and architectures
What We Do
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs. Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts. Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters
