Senior Security Tester (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on global Identity and Access Management (IAM) transformation using Google Cloud Platform. Key technologies include Python, PyTest, API automation, Jenkins CI/CD, with optional Neo4J. Responsibilities cover building and maintaining automated API tests, validating access models (RBAC, ABAC, ReBAC, PBAC), creating test pipelines, and defect management with stakeholder reporting. Testing addresses functional and non-functional requirements.

new

Senior Security Tester (f/m/x)

Company: Sii Sp. z o.o.

from: 15 July 2026
to: 14 August 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:mid • senior
working mode:hybrid • full office
Białystok, Centrum
Białystok, CentrumJózefa Marjańskiego 3View on map

Requirements

Expected technologies

Automated Testing
Python
pytest
Playwright
API
Cloud Computing
IAM
Google Cloud Platform

Optional technologies

TypeScript

Our requirements

  • Minimum 5 years of experience in automated testing and software engineering
  • Strong expertise in Python and PyTest for building reusable test utilities
  • Hands-on experience with API testing and automation, including REST API tooling such as Insomnia, Apidog, or Postman
  • Practical knowledge of IAM concepts and identity lifecycle management, including human and non-human identities
  • Experience with CI/CD tools, particularly Jenkins, and a shift-left mindset in testing
  • Familiarity with event-driven architectures and concepts related to Pub/Sub
  • Advanced level of English
  • Work from the office in Krakow 6 times a month

Optional

  • Exposure to Playwright for UI testing
  • Basic knowledge of Neo4j and Cypher queries for graph data validation
  • Familiarity with TypeScript and advanced schema/property-based testing

Your responsibilities

  • Building and maintaining an automated test framework and suites for API, event, and graph-based services using Python and PyTest
  • Defining and executing test plans, cases, and data aligned with requirements and technical specifications while maintaining traceability for functional and non-functional requirements
  • Validating IAM concepts and access models such as RBAC, ABAC, ReBAC, and PBAC, and testing decision points as code through policy-as-code
  • Performing API automation, contract testing, and replay/reprocessing scenarios to ensure reliability and performance
  • Validating graph data, including nodes, relationships, and event lineage, with a preference for experience in Neo4J
  • Producing regulatory evidence as required and supporting entry and exit criteria along with test governance activities
  • Creating and managing Jenkins pipelines for test execution and reporting as part of the CI/CD process
  • Logging, tracking, and driving defects through triage to closure while communicating progress to stakeholders

About the project

We are looking for a highly Automation Test Engineer to join a long-term transformational program focused on redefining Identity and Access Management on a global scale. You will work within a dynamic team in Cracow, utilizing an automation-first approach to test secure, scalable identity and access workflows across Google Cloud Platform. Your expertise will be essential in integrating identity services with custom APIs and cloud-native applications. If you are passionate about ensuring robust IAM solutions, this opportunity may be the right fit for you.

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration
Company

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

Senior Security Tester (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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