Senior Java Engineer – Segmentation, Audience Platform

Sigma Software Group

Senior Java Engineer developing core components for audience segmentation platform at Sigma Software. Collaborate with teams to design and implement innovative solutions using cutting-edge technology.

Posted 6/24/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Tech Stack

Tools & technologies

CloudDistributed SystemsElasticSearchGoogle Cloud PlatformJava

About the role

Key responsibilities & impact

Design and implement core components of the audience segmentation platform
Develop and evolve a flexible segment definition language supporting complex targeting scenarios
Build scalable evaluation engines for processing large-scale entity and relationship data
Implement relationship-based audience resolution across multiple entity types
Optimize incremental recomputation for continuous data changes
Create event-driven pipelines for real-time segment accuracy
Ensure governance, auditability, and lifecycle traceability of segments
Design low-latency resolution services for high-scale operations
Develop caching strategies for dynamic segments and snapshots
Optimize system performance, scalability, and operational efficiency
Collaborate with product and engineering teams to define platform capabilities and architecture
Provide technical leadership and contribute to architectural decisions

Requirements

What you’ll need

At least 5+ years of backend engineering experience
Strong Java expertise
Proven experience building distributed systems
Knowledge of query engines, search platforms, rules engines, segmentation platforms, or analytics systems
Strong understanding of data modeling and domain-driven design principles
Experience with event-driven architectures
Skilled in designing scalable APIs and backend services
Strong problem-solving and performance optimization skills
Experience with cloud-native architectures
Ability to drive technical decisions and contribute to system architecture
Upper-Intermediate+ English level
WILL BE A PLUS - Experience with recommendation engines
Knowledge of Quarkus
Experience building Customer Data Platforms (CDP)
Experience with marketing automation systems
Expertise in audience segmentation or personalization platforms
Familiarity with graph-based data models and relationship traversal
Experience with search technologies (Elasticsearch, OpenSearch)
Experience with stream processing technologies
Experience with Google Cloud Platform
Experience with large-scale analytics systems

Benefits

Comp & perks

opportunity to work with cutting-edge technologies and high-scale systems
challenging tasks
freedom to experiment with new technologies

ATS Keywords

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Hard Skills & Tools

Javadistributed systemsdata modelingdomain-driven designevent-driven architecturesscalable APIsperformance optimizationcloud-native architecturesrecommendation enginesgraph-based data models

Soft Skills

problem-solvingtechnical leadershipcollaborationcommunication