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Software Security Engineer Backend

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Onsite

Software Security Engineer Backend

W3Global

Software Security Engineer Backend

Skills

Google Cloud PlatformNodeTypescriptDjangoPythonPostgreSQLKubernetesTerraform

19 days ago

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Important information


Contract type:

Freelance / Contract

Location:

Kraków, Poland

Work mode:

Onsite

Published on:

1 October 2026

What they need


**Role Software Security Engineer Backend

Location: Krakow, Poland(hybrid, 3 days in a week)

Mode: Contract** Skills: Python, Django, Node.js, TypeScript, GCP, Kubernetes (GKE), Terraform, PostgreSQL, OAuth2/OpenID Connect, Backend Development Responsibilities

  • Design develop and maintain secure backend services and cloudnative applications
  • Drive Engineering Excellence initiatives across Software Security platforms
  • Deliver productionready code and contribute directly to software development activities
  • Build scalable backend services using Python Nodejs and modern cloudnative technologies
  • Architect solutions on GKE and optimize PostgreSQL performance for highconcurrency environments
  • Build and support eventdriven architectures using PubSub
  • Own the full lifecycle of services on GCP ensuring resilience observability security and cost efficiency
  • Design and manage OAuth2 and OpenID Connect authentication flows
  • Translate business requirements into scalable technical solutions
  • Promote engineering standards quality automation and operational excellence
  • Mentor engineers and contribute to technical leadership across teams
  • Drive adoption of secure coding automation and cloud engineering best practices
  • Continuously evaluate and adopt emerging technologies and engineering trends

To Be Successful In This Role You Should Have

  • Deep expertise in Python Django andor Nodejs TypeScriptNestJS
  • Experience delivering productiongrade backend services
  • Knowledge of Go and modern backend development practices
  • Handson experience with Google Cloud Platform GCP
  • Experience with Cloud Run GKE and Filestore
  • Strong Infrastructure as Code IaC experience using Terraform
  • Experience building scalable secure backend applications
  • Strong understanding of Zero Trust security models
  • Knowledge of OAuth2 and OpenID Connect authentication frameworks
  • Experience with PostgreSQL performance optimization
  • Experience with EventDriven Architectures using PubSub
  • Strong software architecture and engineering design skills
  • Fullstack awareness with deep backend specialization
  • Strong problemsolving and innovation mindset
  • Experience mentoring engineers and driving engineering excellence
  • Strong understanding of automation observability resiliency and cloudnative operations
  • Ability to work effectively in Agile engineering environments

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