• Create and maintain monitoring to ensure system health and availability. • Monitor alerts and incidents, supporting initial fault identification and guiding rapid remediation. • Build and enhance dashboards to track service performance and stability. • Execute synthetic tests and validate monitoring to ensure the reliability of automated detections. • Document processes, monitoring configurations, and technical learnings to share knowledge.

Role Description Are you passionate about building secure, high-performance platforms? We are looking for a Senior Java Developer to join our team and work on a cutting-edge security platform. This is a remote role open to candidates across Europe and Ukraine. At Sigma Software, we create innovative solutions for complex ecosystems, ensuring security, scalability, and compliance at every step. You will be part of a talented engineering group designing the unified access layer for distributed services. Why join us? You will work on a mission-critical project with advanced security architecture, collaborate with skilled professionals, and contribute to a platform that supports global-scale operations. The project focuses on developing a centralized platform access layer that integrates: - API gateway capabilities - Service orchestration - Data composition - Fine-grained Attribute-Based Access Control (ABAC) This system will serve as the foundation for security and governance across the entire ecosystem, supporting complex organizational hierarchies, regional compliance, and strict enforcement guarantees. Job Responsibilities: - Design and evolve the platform access architecture for a large-scale distributed ecosystem - Build and maintain a unified API layer over multiple distributed services - Implement fine-grained ABAC authorization at scale, supporting complex hierarchies and relationships - Develop fail-closed security architectures with strict enforcement guarantees - Manage regional compliance, data residency, and routing requirements - Ensure consistent data visibility rules across all products and services - Design high-performance authorization evaluation systems and policy engines - Maintain auditability, traceability, and security transparency mechanisms - Collaborate with platform and product teams on API and access design - Contribute to architectural decisions and security standards Qualifications - At least 5+ years of experience building distributed systems - Strong expertise in Java development - Experience designing API platforms or API gateways - Solid background in security architecture and system design - Experience with authorization systems (RBAC/ABAC or similar) - Familiarity with cloud-native architectures and scalable, high-availability systems - Understanding of multi-tenant architectures - Experience operating complex distributed systems in production - Strong architectural thinking and problem-solving skills - Upper-Intermediate or higher English proficiency Requirements - Experience with Identity and Access Management (IAM) systems - Experience building API gateways or service mesh architectures - Work on security-critical or compliance-heavy systems - Knowledge of policy engines (e.g., OPA) - Experience with large-scale enterprise platforms - Familiarity with cloud providers (e.g., GCP) - Experience with data governance, audit, and compliance systems - Background in regulated or high-security environments Benefits - Proactive and detail-oriented - Thrives in collaborative environments - Enjoys solving complex integration challenges - Comfortable experimenting with new technologies - Committed to improving data systems

• Drive regional performance targets including billable utilisation, team growth, and hiring • Lead high-stakes enterprise engagements • Champion delivery governance and operational rigor • Act as executive escalation point for critical customer situations • Develop and retain exceptional technical talent

• Lead a high-performing team of Forward Deployed Engineers and AI Engineers • Partner with enterprise accounts to shape data migrations and build AI systems • Ensure delivery quality and drive strategic governance • Mentor Forward Deployed Engineers and provide career development • Act as executive escalation point for critical customer situations