Houssem Ben Zid-Senior Backend Engineer
Check rate
Experience
Senior Backend Developer
Novobit Group
- Designed and developed scalable backend systems using Java, Spring Boot, and AWS services.
- Contributed to HWP (Human Work Planning), a modern, cloud-based planning and optimization system for assembly and manufacturing processes across the Volkswagen Group. The platform provides a standardized digital solution for planning, optimizing, and supporting the simulation of human work and production process flows.
- Helped modernize legacy applications by migrating them to modular, distributed architectures, improving scalability and maintainability.
- Collaborated with cross-functional teams across Germany, the Czech Republic, and Tunisia in a SAFe Agile environment.
- Utilized Bitbucket for version control, Bamboo for CI/CD pipelines, and JIRA for project and issue tracking.
- Integrated AWS services including EKS for container orchestration, Batch for job scheduling, and CloudWatch for monitoring.
Tech Stack: Java, Spring Boot, AWS (EKS, Batch, CloudWatch), React, SQL, Bitbucket, Bamboo, JIRA
Software Engineer
Novobit Group
- Developed robust RESTful APIs for an internal toolchain managing software updates across VW and Porsche vehicles.
- Enabled drag-and-drop UI features using Angular frontend to streamline update order configurations.
- Automated CI/CD pipelines using Bamboo CI across Dev, Test, QA, and Production environments.
Tech Stack: Java, Spring Boot, Angular, Bamboo CI, DevStack
Senior Java / JEE Developer
Sofrecom (Orange Group)
Upgraded PROMISE, the provisioning platform supporting Orange mobile, internet, TV, and convergent services, to align with modern infrastructure requirements.
- Replaced the JOnAS application server with Tomcat and integrated Atomikos to manage distributed transactions across multiple data sources.
- Led the transformation of PROMISE into a microservices architecture (PROMISE-MS) using Spring Boot, Spring Cloud, Zuul, and Swagger by using Domain-Driven Design (DDD) and microservices architecture to deliver scalable, maintainable enterprise applications.
- Contributed to the backend development of IDPC, a biometric identity management system, leveraging Spring Boot and MongoDB to deliver a robust and scalable solution.
- Performed functional analysis, technical design, testing, and documentation while collaborating with cross-functional teams.
Key Projects: PROMISE (Legacy provisioning/identity platform modernization), PROMISE-MS (Microservices migration), IDPC (Biometric identity platform)
Software Developer
Acceate
- Developed VBanking, an online banking solution with security features including XSS prevention, Spring Security, and encrypted URLs.
- Implemented various modules (Gateway, BO, Web, SMS), Internationalization (i18n), and Ant/Gradle tasks.
- Built JMS web services using SOAP.
Key Projects: VBanking (Groovy, Grails 3.1.10, WildFly 10, MySQL), Etisalat (Oracle WebCenter Sites 12c, ATG with GSPX, REST, IBM Digital Analytics API)
Java Developer
Center for Applied Software Engineering
- Developed EL PLAN, a resource management system for the Italian Army using JSPX technology.
- Reduced server workload by refactoring view generators (JSPX files) and JavaScript.
- Implemented functionality for storing data from existing systems.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Automotive, Telecommunication, Manufacturing, Banking and Finance, Aerospace and Defense, and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Production, and Product Development.
Summary
Senior Backend Engineer with 10+ years of experience designing scalable, cloud-native applications using modular architectures and microservices. Holds good knowledge of AWS, Kubernetes, and distributed systems with a strong focus on optimizing backend performance. Proven track record of migrating legacy Java applications to modern Spring-based architectures, significantly improving maintainability and scalability. Experienced in Agile collaboration within cross-functional teams across automotive, telecom, and fintech industries.
Skills
- Languages & Core: Java 6–17, Sql, Groovy, Grails, Python, Go, Kotlin
- Frameworks: Spring Boot, Spring Cloud, Spring Security, Hibernate
- Cloud & Devops: Aws, Docker, Kubernetes, Openshift, Jenkins, Bamboo, Git, Maven, Gradle, Sonarqube
- Databases & Messaging: Mongodb, Oracle, Mysql, Postgresql, Elasticsearch, Apache Kafka, Rabbitmq, Jms
- Web & Api Technologies: Oracle Webcenter, Apache Axis, Zuul, Swagger/Openapi, Grafana & Kibana
Languages
Education
Higher Institute of Computer Science (ISI)
Engineering Degree · Industrial Computing · Tunis, Tunisia
Higher Institute of Computer Science (ISI)
Bachelor · Industrial Computer Science · Tunis, Tunisia
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Houssem is based in Braunschweig, Germany.
Houssem speaks the following languages: Arabic (Native), English (Advanced), German (Intermediate), French (Intermediate).
Houssem has at least 11 years of experience. During this time, Houssem has worked in at least 5 different roles and for 4 different companies. The average length of individual experience is 2 years and 2 months. Note that Houssem may not have shared all experience and actually has more experience.
Based on recent experience, Houssem would be well-suited for roles such as: Senior Backend Developer, Software Engineer, Senior Java / JEE Developer.
Houssem's most recent position is Senior Backend Developer at Novobit Group.
In recent years, Houssem has worked for Novobit Group.
Houssem is most experienced in industries like Automotive, Telecommunication, and Manufacturing. Houssem also has some experience in Aerospace and Defense, Government and Administration, and Banking and Finance.
Houssem is most experienced in business areas like Information Technology, Operations, and Production. Houssem also has some experience in Product Development.
Houssem has recently worked in industries like Automotive and Manufacturing.
Houssem has recently worked in business areas like Information Technology, Operations, and Production.
Houssem holds a Bachelor in Industrial Computer Science from Higher Institute of Computer Science (ISI).
Houssem is immediately available part-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 25 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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