Staff Software Engineer (Java) - 3rd Party Integrations
HybridBrno, South Moravian, Czechia
Job Summary
Define API contracts, runtime abstractions, and isolation mechanisms for the Singularity Marketplace multi-tenant platform enabling third-party integrations across SentinelOne's AI SIEM ecosystem. Design and maintain event-driven microservices using Apache Kafka to process XDR alerts and external triggers at petabyte scale, while developing Java/Kotlin (Spring Boot) integrations with interactive onboarding UIs. Own core infrastructure spanning edge gateways, API routing, and high-performance databases, enforcing secure JWT/OAuth authentication. Participate in on-call rotation for incident response involving Kafka lag, reconciliation failures, and ingress routing issues, contributing to GitOps-driven CI/CD pipelines for deployment across environments.
Required Qualifications
- Modern Java/Kotlin Ecosystem: Deep hands-on expertise in Java/Kotlin, and Spring Boot
- strong system design fundamentals
- Experience with event-driven architectures and messaging systems (Apache Kafka or equivalent), including topics, consumer groups, and streaming pipelines
- Ability to research and reverse-engineer APIs from documentation and technical specifications, and model them into structured data schemas
- Demonstrated technical leadership experience - shaping engineering best practices and driving their adoption across a team
- Experience with Kubernetes and containerized deployments, including Helm charts, ingress controllers (e.g., Traefik), and operator/reconciler patterns
- Experience with relational databases (PostgreSQL preferred) and cloud infrastructure (AWS and/or GCP)
- Experience developing integration or contract tests (e.g., pytest) and working within CI/CD pipelines
- Knowledge of Go or Rust
- Familiarity with serverless/FaaS platforms (e.g., AWS Lambda)
- Experience building data-intensive systems (ingestion, transformation, normalization, validation) and integrating complex third-party APIs
- Practical engineering experience building production software utilizing LLMs or AI agents, with an emphasis on evaluation frameworks, testing, guardrails, and data pipeline integration
- Experience operating distributed, multi-region production systems (debugging Kafka consumer lag, ingress/routing issues, connection pool exhaustion, reconciliation failures)
- Only Prague-based employees are required to work from the office at least 2 days/week
Desired Qualifications
- Experience with relational databases (PostgreSQL preferred)
- Experience with cloud infrastructure (AWS and/or GCP)
- Experience developing integration or contract tests (e.g., pytest) and working within CI/CD pipelines
- Experience operating distributed, multi-region production systems (debugging Kafka consumer lag, ingress/routing issues, connection pool exhaustion, reconciliation failures)
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