# Back End Software Engineer

**Company:** [Uni Systems](https://jobs.workable.com/companies/8ReRGvVpgTz71fpRSp21WN.md)
**Location:** Brussels, Belgium
**Workplace:** hybrid
**Employment type:** Full-time
**Department:** International BU

[Apply for this job](https://jobs.workable.com/view/a87471b1-5e65-4a7e-ae29-cbe383c84ab3)

## Description

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.

**What will you be doing in this role?**

-   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

**What do you need to succeed in this position?  
**

-   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](https://www.unisystems.com/sites/default/files/2023-05/Diversity%2C%20Equality%20and%20Inclusion%20Policy.pdf) for more information.