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QA Test Automation Engineer - industrial automation (f/m/x)

Sii Poland Warszawa, Pomeranian Voivodeship, Poland

remotefull-time
Posted Feb 23, 2026Apply by Mar 25, 2026

Role & seniority: Software Engineer / Developer in industrial automation (seniority not specified)

Stack/tools: JavaScript/JScript, Structured Text (ST), unit testing, code quality/QA practices, modular code library

Top 3 responsibilities

  • Develop and maintain a common code library used across multiple industrial automation projects

  • Implement unit tests and create test documentation; improve code quality

  • Collaborate with project teams to implement new features and optimize existing JavaScript/JScript and ST code; identify and resolve quality issues

Must-have skills

  • Experience in industrial automation; familiarity with PLC and Structured Text

  • Proficiency in JavaScript/JScript and Structured Text

  • Practical knowledge of software quality assurance principles; ability to write/maintain unit tests

  • Track record with modular, scalable code used across multiple projects

  • Independent, accurate, and capable of proposing technical solutions

  • Fluent English; Polish language fluency and Poland residence required

Nice-to-haves

  • Experience working with client products and cross-project code libraries

  • Formal QA process experience and test documentation routine

  • Strong collaboration and communication skills in a multilingual environment

Location & work type: Poland-based; residence in Poland required; work type not specified

Full Description

Join a team developing a central industrial automation project that acts as a common code library for multiple research and development (R&D) projects. The project contains a set of functions and solutions created for reuse in automation systems. The code is mainly written in JavaScript/JScript and Structured Text (ST).

If you have experience in industrial automation, can clean up code, implement tests and care about software quality - you might be the one we are looking for!

Your tasks

Development and maintenance of a common code library used in industrial automation projects Working on client products Optimization of existing code written in JavaScript/JScript and Structured Text (ST) Implementing unit tests and creating test documentation Identifying and resolving code quality issues Collaborating with project teams to implement new features that depend on a common code base Suggesting and implementing QA (quality assurance) best practices

Requirements

Experience in industrial automation (welcome: working with PLC, Structured Text) Knowledge of JavaScript/JScript and Structured Text languages Practical knowledge of software quality assurance (QA) principles Ability to write and maintain unit tests Previous work y with code common to multiple projects (modularity, scalability) Independence, accuracy and ability to propose technical solutions Fluent English language Residence in Poland required and fluency in the Polish language

Job no. 260223-VROD0

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Industrial AutomationJavaScriptJScriptStructured TextCode QualityUnit TestsTest DocumentationPLCSoftware Quality AssuranceModularityScalabilityEnglishmulti-location

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