I am a backend-focused Java developer with 3+ years of experience building REST APIs, backend services, and data-driven modules across financial, sustainability, and engineering domains. I thrive on clean architecture, scalable service layers, and maintainable code that stands up to production pressures.\n\nI enjoy collaborating in Agile teams, learning new technologies, and delivering iterative enhancements. My toolkit includes Java, Spring Boot, MySQL/Oracle SQL, Docker, and a thoughtful approach to testing and debugging to ensure reliable backend functionality.

Abdellah Khallouk

I am a backend-focused Java developer with 3+ years of experience building REST APIs, backend services, and data-driven modules across financial, sustainability, and engineering domains. I thrive on clean architecture, scalable service layers, and maintainable code that stands up to production pressures.\n\nI enjoy collaborating in Agile teams, learning new technologies, and delivering iterative enhancements. My toolkit includes Java, Spring Boot, MySQL/Oracle SQL, Docker, and a thoughtful approach to testing and debugging to ensure reliable backend functionality.

Available to hire

I am a backend-focused Java developer with 3+ years of experience building REST APIs, backend services, and data-driven modules across financial, sustainability, and engineering domains. I thrive on clean architecture, scalable service layers, and maintainable code that stands up to production pressures.\n\nI enjoy collaborating in Agile teams, learning new technologies, and delivering iterative enhancements. My toolkit includes Java, Spring Boot, MySQL/Oracle SQL, Docker, and a thoughtful approach to testing and debugging to ensure reliable backend functionality.

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Experience Level

Expert
Expert
Expert
Expert
Expert

Language

Arabic
Fluent
English
Advanced
French
Advanced
German
Intermediate

Work Experience

Backend Java Developer at QED Investors
December 1, 2024 - Present
Develop scalable backend services using Java and Spring Boot, implementing structured business logic, reusable service layers, and reliable workflow automation for internal financial data pipelines. Build and enhance REST APIs that support secure data transfer, validation workflows, structured JSON responses, and error-handling standards across distributed internal systems. Work on MySQL and Oracle SQL Developer to design queries, refine database interactions, create indexing strategies, and support high-accuracy data retrieval. Refactor existing modules by restructuring classes, improving dependency management, and applying clean coding patterns to enhance long-term maintainability. Perform API testing with Postman and unit tests with JUnit to ensure system stability and regression prevention. Support Docker-based local environments to standardize runtime behavior, simplify onboarding, and reduce configuration inconsistencies across machines. Participate in Agile sprints by analyzing
Software Developer at ClearKarma
July 1, 2023 - October 1, 2024
Built and enhanced Android application components using Java/XML, contributing to mobile workflow logic, UI-driven feature handling, and smooth navigation across traceability screens. Developed backend logic for processing environmental data, transforming API responses, validating JSON payloads, and structuring business rules for traceability features. Integrated third-party APIs related to sustainability, product lifecycle metrics, and carbon-footprint calculations with proper response parsing and error handling. Collaborated with MySQL databases, designing queries, adjusting table structures, tuning indexes, and supporting data-driven operations within the application. Conducted cross-platform debugging in Android Studio, IntelliJ, and Visual Studio Code to resolve UI inconsistencies, backend issues, and integration failures. Collaborated with engineering teams to refine feature designs, optimize user flows, and support prototype iterations in an Agile development cycle. Authored doc
Junior Java Developer at Attrecto Next Tech Digital Solutions
October 1, 2021 - February 28, 2023
Assisted in implementing backend services using Java and Spring components, contributing to feature development through modular logic, reusable components, and clearly defined service operations. Built REST API endpoints with structured request validation, response formatting, exception handling, and standardized payload rules for internal applications. Worked with MySQL and Oracle SQL Developer to perform CRUD operations, improve data integrity, adjust schemas, and build query logic for backend functionality. Participated in environment configuration tasks including application property setup, build execution support, and aligning modules for smooth deployments. Debugged backend modules by reviewing logs, analyzing stack traces, and identifying logic defects for faster issue resolution and system stabilization. Used IntelliJ IDEA to write, test, refactor, and document backend code, ensuring clean structure and clear method responsibilities. Applied Git best practices to manage branche
Assistant Concept Engineer – Internship at ZALAGH PLANCHER FES Casablanca
January 1, 2018 - May 31, 2018
Analyzed system input/output behavior for industrial automation equipment, mapping operational dependencies and mechanical requirements. Designed Structured Function Charts (SFC) using STEP7 to represent automated industrial processes and sequential workflows. Supported troubleshooting tasks and efficiency improvements by assisting with electrical diagnostics and automation performance evaluation.

Education

Master of Science – Mechatronical Engineering at Óbuda University
September 1, 2019 - July 1, 2022
Bachelor of Science – Mechatronics and Embedded Systems at Faculty of Science Dhar El Mahraz
September 1, 2014 - June 1, 2018

Qualifications

Java Developer – Green Fox Academy
September 1, 2022 - June 30, 2023

Industry Experience

Software & Internet, Financial Services, Energy & Utilities, Manufacturing, Professional Services