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Principal Engineer - Service Engineer

Krakow, Małopolskie, Poland💼 Full-time🗓 2026-06-09 → 2026-07-31

Core

Designing and owning complex Data & Analytics solutions for enterprise travel clients, translating business needs into scalable technical strategies.

Role type

Senior IC backend engineer (Java) transitioning to Principal

Builds

Scalable Data & Analytics solutions, critical system components, and production-quality code for enterprise travel partners

Domain

Travel technology, distributed systems, cloud-native architecture

Deliverable

production ML models | product features | dashboards & analysis

Required skills

Java backend development, Python for data/automation, distributed systems architecture, microservices, Kubernetes, Docker, CI/CD, Kafka, SQL (Relational and NoSQL), RESTful API design

Preferred skills

Strategic vision, technical mentorship, navigating high-pressure customer-critical environments

Technologies

Java, Python, Kafka, Kubernetes, Docker, SQL, NoSQL

Responsibilities

Partner with enterprise clients to design scalable Data & Analytics solutions; Own technical design and architectural decisions; Write production-quality code; Mentor delivery engineers and review work; Oversee end-to-end implementation and data migration

Seniority

Senior, hands-on IC with trajectory to Principal

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