Senior Software Engineer

Full-time
Master, Bachelor
Cluj-Napoca
At Sioux Technologies it’s all about making the pieces of the puzzle fit together, we can’t do that without you, a driven Senior Software Engineer.

Sioux Technologies creates and integrates state-of-the-art application software, for example for operating equipment, image and data analysis, process management, and providing insight into information. The focus is on user-friendliness, quality, innovation speed, and cost efficiency. This way, Sioux supports clients in industries such as semiconductor, medical, and analytical industries in developing and bringing to market distinctive and competitive products.

What excites you as a Senior Software Engineer

Sioux Technologies is a strategic high-tech solutions partner that develops, innovates, and assembles complex high-tech systems with advanced Software, Mathware, Electronics and Mechatronics. The largest privately-owned tech company in the Netherlands, Sioux Technologies focuses on people and building long-term relations. The company values continuous development of their employees to increase fun and value for their employees, customers, and the world around us.

This is a full-time hybrid role for a Senior Software Engineer in Cluj-Napoca, who will be responsible for daily tasks associated with software development and object-oriented programming (OOP) to design and maintain complex systems.

This is what we are looking for:
  • You have a Background in Informatics or Computer Science, Bachelor or University level.
  • You are a team player and like to strive towards the common goal.
  • You have at least 4 years of experience using C++.
  • You have experience in working with Windows.
  • You have a good knowledge of OOP and design patterns.
  • You have been involved in Application Design and Architecture.
  • You are proficient in English (written and spoken).
  • You are willing to occasionally travel.


It's a plus if you have:

  • Working experience with C#;
  • Experience with model-based programming;
  • Software development in Agile/SAFe environment;
  • Working experience with gRPc.

Your future workplace

Why you want to work here

Our office in Cluj-Napoca is situated in a prime location with easy access to public transportation and nearby facilities, ensuring convenience for our team members, and stands out for its innovative design and focus on employee well-being, creating an environment where creativity and projects thrive. Cluj-Napoca is the second-largest city in Romania and a buzzing tech hub with endless opportunities for IT professionals, offering a dynamic mix of startups, global companies, and renowned universities, it's the perfect blend of career growth and a vibrant lifestyle.

We offer:
  • A welcoming environment with opportunities for personal development and professional growth
  • Real tasks and interesting projects
  • Constant investment in your professional growth through training sessions aimed to develop your soft skills and professional skills
  • Training and certification opportunities
  • Funds for personal sports and wellness activities
  • Private health coverage
  • Meal vouchers
  • Fun team-building activities

Hich-Tech, High-Fun, High Value


We can tell you all about the typical Sioux-culture and the high-tech challenging projects. About how you can develop yourself, like nowhere else. But we’d rather have you hear it from our own employees.


Go to testimonials!

Ben je geïnteresseerd?

Jouw nieuwe baan in 5 stappen

Dank je wel voor jouw interesse. Wij delen graag ons selectieproces met jou. Hieronder vind je de stappen die we doorlopen. Heb je nog vragen, neem dan gerust contact met ons op. We wensen je veel succes met je sollicitatie bij Sioux Technologies!

  • Interesse?
    • Stuur ons je CV en motivatievideo of -brief. 
  • Sollicitatie ontvangen
    • Een van onze recruiters zal je sollicitatie bekijken en komt er zsm bij je op terug.
  • Kennismaking
    • We plannen een (online) kennismaking met een Sioux collega om te onderzoeken of er een match is.
  • Vervolggesprek(ken)
    • In vervolggesprek(ken) duiken we de (technische) diepte in. In sommige gevallen zal een persoonlijkheidstest deel uitmaken van het gesprek en met je worden besproken. In andere gevallen zul je een (technishe) casus voorgelegd krijgen.
  • Beiden enthousiast?
    • Als we beiden enthousiast zijn willen we je graag een aanbieding doen. We gaan het aanbod met je doornemen en bespreken. Ben je nu al benieuwd naar onze arbeidsvoorwaarden? Je kunt ze hier vinden voor Nederland, België, Duitsland.
  • Welkom bij Sioux Technologies!
    • We heten je van harte welkom bij Sioux en wensen je veel succes met je nieuwe uitdaging!

Beate Janschitz

Personalmanagement
+49 (0) 9131 81 29 28-67
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