New

Back End Software Engineer

BelgiumBelgium·BrusselsFull-timemid
Software EngineerSoftware Engineering
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Quick Summary

Overview

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Back End Software Engineer to join our UniQue team.

Technical Tools
Software EngineerSoftware Engineering

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Back End Software Engineer to join our UniQue team.

  • Develop and maintain back-end web applications, services, and business logic.
  • Design, develop, and optimize APIs and server-side functionality.
  • Integrate front-end components with back-end systems and databases.
  • Design and implement efficient, scalable, and secure data storage solutions.
  • Apply security best practices, including input validation, authentication, authorization, secure storage, logging, and monitoring.
  • Ensure application performance, scalability, and reliability through continuous optimization.
  • Participate in the design and development of scalable software solutions.
  • Maintain clean, organized, and high-quality code following established coding standards.
  • Analyze, troubleshoot, and resolve application issues through code review, monitoring, and debugging.
  • Perform unit and integration testing, validate code changes, and ensure software quality.
  • Deliver solutions that meet functional and non-functional requirements and user expectations.
  • Create and maintain technical documentation.
  • Configure and support cloud-based back-end services, including serverless functions, storage services, and managed Kubernetes environments.
  • Implement and maintain authentication and authorization mechanisms to secure APIs and services.
  • Develop and maintain automated unit and integration tests within CI/CD pipelines.

Requirements

~1 min read
  • Proficiency in back-end development with Python and experience working with frameworks such as Spring Boot, Hibernate, and Node.js.
  • Strong understanding of the full web development lifecycle, programming concepts, development tools, and best practices.
  • Experience with Application Performance Monitoring (APM) tools such as Dynatrace, Splunk, and Elastic APM, with knowledge of OpenTelemetry for metrics, logs, and distributed tracing.
  • Strong experience with relational databases, including PostgreSQL, Oracle, and MySQL, with the ability to write complex SQL queries and design efficient database structures.
  • Knowledge of NoSQL databases such as MongoDB, CouchDB, and Cosmos DB, including consistency and performance considerations.
  • Experience with version control systems and development workflows, including GitFlow, trunk-based development, and exposure to legacy systems using SVN.
  • Experience designing, developing, documenting, and securing RESTful APIs and web services, including the use of OpenAPI/Swagger.
  • Knowledge of containerization and orchestration technologies such as Docker and Kubernetes.
  • Understanding of authentication and authorization standards, including OAuth 2.0, OpenID Connect (OIDC), JWT, and EU Login.
  • Experience working with and strong understanding of the i2 technology stack.

One of the following or an equivalent certification:

  • AWS Certified Developer
  • Associate, Microsoft Azure Developer Associate, or CNCF Certified Kubernetes
  • Application Developer (CKAD).

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 Diversity, Equality & Inclusion Policy for more information.

Location & Eligibility

Where is the job
Brussels, Belgium
On-site at the office

About this job

Posted
Today
Employer
has 36 open jobs on Jobera in 6 countries.

Listing Details

Posted
October 22, 2026
First seen
October 22, 2026
Last seen
October 22, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
67%
Scored at
October 22, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust

Uni Systems is a European ICT company founded in 1964, providing a wide range of digital transformation products and services to financial institutions, public organizations, telecom operators, and enterprises. It is a member of the Quest Group of Companies and operates internationally with a significant presence in several European countries.

Employees
1,001-5,000
View company profile
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Back End Software Engineer