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Fullstack Software Engineer (gn)

IT
Lower Saxony (DE), Baden-Wuerttemberg (DE), Bremen (DE), Saxony (DE), Bavaria (DE), Paris (FR), Herrliberg (CH), Bolzana (IT), Krakow (PL), Wales (GB), London (GB), Hasselt (BE), Berlin (DE), Belgium (BE), North Rhine-Westphalia (DE), Madrid (ES), Baden-Baden (DE), Freiburg im Breisgau (DE), Villingen-Schwenningen (DE), Konstanz (DE), Hessen (DE), Mecklenburg-Vorpommern (DE), Schleswig-Holstein, Hamburg (DE), Brandenburg (DE), Saxony-Anhalt (DE), Köthen (DE), Leipzig (DE), Munich (DE), Bologna (IT), Cardiff (GB), Vienna (AT), Valencia (ES), Maastricht (NL), Budapest (HU), Remote, Netherlands (NL), Zürich (CH)
Permanent position
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Your benefits at Unite

Flexible working hours

Continuous learning

30+ vacation days

Remote working

In Team Terminus, we develop core functionalities for the entire checkout process and buyer user management in the Unite ecosystem. Our goal is a seamless purchasing experience, high conversion, and a strong new Unite Procurement Portal (UPP). If you’re excited about working on business‑critical services and shaping a product that powers thousands of orders every day, we’d love to meet you.

Your role

  • Be a team player: You’ll collaborate in an agile environment, and will work with a high degree of autonomy and strive to be a high-performing, self-managed and self-organised team. We encourage pair and mob programming — we work together and do things together.
  • Add value: You'll develop and operate core services for our checkout and buyer user management, helping us finalise the UPP and close remaining feature gaps.
  • Shape our engineering culture: You'll contribute to cross-team initiatives to define architectural guidelines, evaluate new technologies, and establish best practices.
  • Take pride in craftsmanship: You'll foster a security-first mindset and ensure robust, reliable, clean and testable code.
  • Turn complexity into working software: You'll analyse complex business requirements and work in close cooperation with the product team to translate them into production-ready code.

Your qualifications

  • Backend depth with Java: You're experienced in designing, developing and maintaining robust web applications in Java. You have a strong understanding of distributed systems, data modelling, and service-oriented and event-driven architectures.
  • Full‑stack mindset: You either bring experience with TypeScript and React, or you’re excited to learn and grow into our frontend tech stack — both paths are perfectly fine for us.
  • Strategic thinking: You have the confidence and maturity to maintain and modernise business-critical legacy code.
  • Operational ownership: You're proficient with DevOps tools and practices and
    experienced in supporting the operation of highly available web services.
  • Curious builder’s mindset: You stay curious, share knowledge, and use modern technologies from cloud services to AI-powered tools — to continuously improve the way we build software.

Interested? Then apply directly.

Apply now

What you can expect from us

  • Be a part of our agile working style: Our open communication and quick decision-making processes allow our teams to work autonomously for the most part.
  • We offer a flexible work location: You can work in one of our modern Unite offices or remotely – or even do a mix of both.
  • Workation: You can work abroad for up to 2 months, which is a great way to extend your time away or visit your family and friends in other countries.
  • Enjoy our Unite culture: We invite you to be yourself, join our table tennis league or online games and have fun.
  • We think long-term: You can and absolutely should invest an average of 10% of your working time into self-education and your own further training – that’s why we are great believers in offering creative freedom. You’ll also get access to our internal learning platform to grow your career.
  • Build with a rich and evolving technology ecosystem: AWS, Spring Boot, Kafka, Terraform or Wicket are just a few to mention. Also, we have a fully integrated CI/CD pipeline in GitLab.

We are Unite.

We connect the economy for sustainable business. Our trusted e-procurement platform with its integrated marketplace enables effortless sourcing and purchasing for B2B and public sector organisations.
Bringing buyers and suppliers together for mutual benefit, we’ve established a solid foundation of fair competition and trustworthy partnerships. Our platform’s scalable infrastructure supports connections, business stability and a robust supply chain.
We revolutionise procurement for B2B and the public sector by adding and sharing value for markets and communities. In 2022, we became the first platform business accredited with the Fair Tax Mark, representing the global standard for responsible tax conduct.

Would you like to become a part of Unite?
Our company was founded as Mercateo in 2000 and the headquarters is located in Leipzig, Germany. We operate in 12 European countries, with over 700 employees working both in-office and remotely. In 2024, we achieved revenue of €448.7 million. For more information, visit unite.eu.
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Share your value with Unite

Apply now

Contact us

Anna Fussa
Recruiter | Human Resources

anna.fussa@unite.eu
+49 341 355 865 68

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