Software Security Backend Engineer (Node)

O projekcie: At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.  Join our client’s team as a Software Security Engineer Backend - Node! Are you a passionate backend engineer who thrives on delivering secure, cloud-native solutions? We are looking for an experienced Software Security Engineer – Backend to design, build, and scale security-driven services in a dynamic environment based on open-source and cloud-native technologies. Sounds like your kind of challenge?  #LI- Hybrid – 6 days a month from the office in Kraków What you get in return - Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.) - Hybrid work setup – 6 days a month from the office in Kraków - Collaborative team culture – work alongside experienced professionals eager to share knowledge  - Continuous development – access to training platforms and growth opportunities  - Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more  - High quality equipment – laptop and essential software provided Wymagania: - Proven expertise in: - Python and Node.js, with production experience in building and deploying backend services. - Google Cloud Platform (Cloud Run, GKE, Filestore) and Infrastructure as Code (Terraform). - Strong experience designing secure architectures, implementing zero trust models, and handling compliance for security-critical systems. - Familiarity with Go for performance-sensitive components. - T-shaped profile: deep backend expertise with understanding of the overall stack. - Experience in building event-driven systems and microservices in large-scale environments. Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference. Codzienne zadania: - Design and implement scalable and secure backend services using Python (Django), Node.js (TypeScript/NestJS), and high-performance components in Go. - Architect and optimize solutions for Google Kubernetes Engine (GKE) and GCP services such as Cloud Run and Filestore. - Ensure systems are resilient, observable, and cost-efficient, owning the full lifecycle of services on GCP. - Implement OAuth2/OpenID Connect flows, apply zero trust security principles, and treat security as a core feature. - Optimize PostgreSQL queries for high-concurrency environments and design event-driven architectures using Pub/Sub. - Actively contribute to code reviews and maintain technical standards across the team. - Mentor engineers, foster collaboration, and evangelize DevSecOps best practices. - Promote automation from the start, reducing toil and streamlining delivery processes. - Stay aligned with evolving trends in cloud, security, and open-source technologies.