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Open nowPosted 100 days ago

Software Test Engineer

Optics1129 open roles

Where
Amsterdam, Noord-Holland, Netherlands
Work mode
On site
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Your applicationOpen nowSoftware Test EngineerOptics11 · Amsterdam, Noord-Holland, Netherlands

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The clock on this job

Early applications get read.

13.9% of postings close within 7 days. Measured by our own scanner across the market. Optics11 postings stay open a median of 27 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.9%7 days
  4. 22.4%14 days
  5. 38.1%30 days
  6. 59.0%60 days
This job: posted 100 days ago

Optics11 median: 27 days open

The posting

We are looking for a hands-on Software Test Engineer to ensure the quality and reliability of software solutions used in real-world sensing and data processing systems.

Optics11 is a deep-tech company developing advanced fiber-optic sensing technologies for challenging environments and applications in energy and underwater security. Our systems enable high-performance sensing and monitoring through advanced photonics, signal processing, and data-driven intelligence.

We are expanding our R&D team with an Software Test Engineer who is passionate about quality, structured validation, and delivering robust software in complex engineering environments.

As a Software Test Engineer, you will be responsible for defining and executing practical software tests to validate software components (including algorithms, cloud back-end, and user interfaces) that process sensor signals generated by fiber-optic sensing systems. You will work closely with data scientists, signal processing specialists, back-end developers, and software architects to ensure that products meet functional and non-functional requirements.

This role requires a hands-on professional with a proactive mindset, a structured approach to software testing, strong attention to detail, and the ability to understand complex technical systems and translate requirements into effective test strategies.

Key Responsibilities

  • Perform functional, integration, regression, system, and end-to-end testing across edge devices, cloud services, APIs, databases, and graphical user interfaces.
  • Define test strategies, test plans, test cases, acceptance criteria, and automated test scripts for an edge and cloud software platforms.
  • Identify, document, and track software defects, ensuring clear reproduction steps and proper follow-up.
  • Collaborate with product owners, developers and engineers to understand system requirements and ensure test coverage.
  • Contribute to the development and maintenance of automated test frameworks and pipelines.
  • Test edge–cloud behaviour under interrupted connectivity, delayed or duplicated messages, device restarts, software updates, and synchronization failures.
  • Validate software performance, reliability, and stability under different operating conditions.
  • Support testing of software running on edge hardware, including hardware–software integration in laboratory and field environments.
  • Analyse test results and provide clear, actionable feedback to development teams.
  • Ensure traceability between requirements, test cases, and test results.
  • Integrate automated tests into GitLab CI/CD pipelines and help define appropriate quality gates.
  • Contribute to continuous improvement of testing processes, tools, and quality standards.
  • Participate in release readiness reviews and ensure software meets quality benchmarks before deployment.

Why Join Us?

  • Join one of Europe’s most promising deep-tech scale-ups.
  • Shape the future of a rapidly growing multidisciplinary R&D organization.
  • Competitive salary and benefits package.
  • Enjoy regular team activities and company events.
  • Fresh team lunches provided 5 times/week.

Qualifications:

  • A degree in computer science, software engineering, embedded systems, or a related technical discipline or equivalent practical experience.
  • Proven experience in software testing or quality assurance.
  • Strong understanding of software testing methodologies and lifecycle.
  • Experience with both exploratory/manual testing and automated testing.
  • Experience testing integrated systems rather than only isolated software components.
  • Familiarity with test management and bug tracking tools (e.g., Jira, TestRail).
  • Programming or scripting skills (e.g., Python, C++, Javascript or similar).
  • Experience developing automated tests using tools such as pytest, Playwright, Cypress, Selenium, or comparable frameworks.
  • Experience testing web-based graphical user interfaces.
  • Experience testing REST APIs, back-end services, or distributed software components.
  • Experience with Docker, AWS, Gitlab , Linux and CI/CD pipelines.
  • Ability to design structured, maintainable, and reproducible automated tests.
  • Familiarity with behaviour-driven development and Gherkin specifications.

Nice to Have:

  • Experience with AWS or another cloud platform.
  • Experience testing data-driven or signal-processing systems.
  • Knowledge of embedded systems and hardware–software integration.
  • Experience testing unreliable-network, offline, reconnection, synchronization, and recovery scenarios.
  • Experience in high-tech, industrial, or defense-related environments.
  • Experience with LabVIEW

Security & Compliance:

You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening.

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