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Uni Systems

Backend Developer

Uni Systems
Belgium · Full-time · Mid-Senior

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Backend Developer to join our UniQue team!

What will you be doing in this role?

  • Development of back-end website applications - writing clean and functional code
  • Integration of user-facing elements developed by a front-end developers with server side logic
  • Implement core business logic
  • Build and manage databases, APIs, and server infrastructure to support application functionality
  • Understanding and implementation of security and data protection
  • Cross-platform optimisation
  • Design responsive applications
  • Participating in the design and creation of scalable software
  • Taking the lead on projects, as needed
  • Maintenance of code integrity and organisation
  • Compile and analyse data, processes, and codes to troubleshoot problems and identify areas for improvement
  • Testing and fixing bugs or other coding issues
  • Write technical documentation

Requirements

What do you need to succeed in this position?

  • A Bachelor degree and a minimum of 13 years of experience in IT (or a Master degree and at least 9 years experience)
  • Proficiency with back-end languages and frameworks such as Java, Spring boot and Hibernate
  • Excellent knowledge of J2EE
  • Excellent knowledge of BPMN
  • Excellent knowledge of micro services architecture
  • Familiarity with database technology such as Oracle, MongoDB
  • Experienced with standards/APIs{{:}} XSD and SOAP, JSON, JSON Schema
  • Experienced with with, Docker, Python, Bash, Elasticsearch,, GIT and JIRA
  • Good knowledge of code versioning tools such as Git
  • Good knowledge of Service Oriented Architecture
  • Good knowledge of applications design
  • Good knowledge of modelling tools
  • Knowledge of interoperability technology (e.g. web services, message-oriented middleware, serviceoriented bus)
  • Capability of integration in an international/multi-cultural environment
  • Good knowledge of agile methodology
  • A good level of the English language will be required

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at for more information.

Key Skills

Ranked by relevance

server elasticsearch spring boot responsive python docker oracle java bash git
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Posted
Nov 13, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels

Industries

Technology Information Internet

Categories

Engineering Information Technology

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