Available to hire
I’m Mubashar Khokhar, a PHP/Python Backend Engineer and Generative AI Specialist based in Berlin with over a decade of experience building scalable web applications, REST APIs, and AI-powered automation. I enjoy designing modular architectures, leading teams, and delivering robust solutions that blend solid backend systems with intelligent automation.
I specialize in integrating OpenAI, Ollama, and local models to create knowledge-driven automation, RAG pipelines, and model fine-tuning for contextual accuracy. I value collaboration, clean code, and delivering measurable business impact through well-architected systems and automated workflows.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
German
Advanced
Urdu
Fluent
Work Experience
Senior Software Engineer at Berlinux Solutions GmbH
July 1, 2024 - PresentDeveloped Deutsche Bahn–collaborated projects using PHP/Joomla, AWS, Docker, MongoDB, and shell scripting. Implemented CI/CD pipelines in GitLab, created Docker-based development/production workflows, and designed AI agents with prompt engineering and JSON schema outputs. Applied LLM fine-tuning and Retrieval-Augmented Generation (RAG) for knowledge-driven automation; automated customer ordering processes and streamlined workflows; integrated vector databases for intelligent search and knowledge retrieval.
External Consultant & Developer at Docunout GmbH & Belegebox
August 31, 2025 - October 8, 2025Generative AI Integration & Agent Development: Built a Laravel-based document processing platform integrating ChatGPT, DeepSeek, and Ollama for automated analysis and categorization. Developed autonomous AI agents to process documents, categorize content, and assign tasks. Implemented dynamic prompt engineering, RESTful APIs for upload/OCR, and user management with external integrations. Created automated end-to-end AI-driven workflows. RESTful OCR API with Python FastAPI, JWT auth, batch processing, and webhook updates. Cloud storage with AWS S3/MinIO; AI agent orchestration for high availability and fault tolerance.
PHP Backend Developer at AlsterSpree Verlag GmbH
January 31, 2024 - October 8, 2025Backend development for a robust multisite CMS platform in the insurance sector; API design, database optimization, caching, and scalable services. Achieved 40% faster page loads, reduced bounce rate by 25%, and contributed to a 15% revenue increase through performance improvements and caching strategies.
Senior Software Engineer at Gastfreund GmbH
September 30, 2022 - October 8, 2025Led microservices migration from monoliths using Yii2/Laravel; designed scalable backend services with API documentation, DB optimization, and caching. Implemented AI-powered automation for user workflows and content management. Mentored junior developers and fostered coding best practices.
Software Engineer at Move24 Group GmbH
March 31, 2018 - October 8, 2025Platform development for B2C moving services across Europe; built production-ready APIs for PDF reports and invoicing, implemented SSO, and developed an admin order-management portal with comprehensive API documentation. Integrated AI automation for reporting and customer service workflows.
PHP Developer at naymspace software GmbH
October 31, 2016 - October 8, 2025Crafted WordPress plugins with XLIFF internationalization, integrated PHP/Symfony with Node.js for an e-commerce platform, and optimized backend processes improving performance and user experience.
Senior Software Engineer at Folio3 Pvt. Ltd
July 31, 2014 - October 8, 2025Designed social networking functionality with features such as social login, profiles, newsfeed, messaging, groups, and events; stack included PHP/Drupal7 and MySQL; contributed to backend architecture and performance improvements.
Web Developer at Game Ventures Pvt. Ltd.
September 30, 2013 - October 8, 2025Designed and developed analytics tooling using PHP and MongoDB for high-volume gaming platforms; integrated analytics with game servers; implemented monitoring to alert stakeholders of issues.
Web Developer at Parse Ten Inc.
March 31, 2012 - October 8, 2025Refactored legacy codebase for reliability and scalability; developed a content management system for a media company reducing maintenance costs by 35%.
Senior Software Engineer at Berlinux Solutions GmbH
July 1, 2024 - PresentDeveloping Deutsche Bahn–collaborated PHP/Joomla-based projects; implementing CI/CD pipelines in GitLab; creating and optimizing Docker-based development and production workflows; designed and deployed AI agents using prompt engineering and JSON schema outputs; applied LLM fine-tuning and Retrieval-Augmented Generation (RAG) for knowledge-driven automation; automated customer ordering processes and streamlined workflows; integrated vector databases for intelligent search. Tech stack: PHP/Joomla, MariaDB, AWS, Docker, Shell, MongoDB, Python3.
External Consultant & Developer at Docunout GmbH & Belegebox
August 1, 2025 - October 8, 2025Generative AI integration & agent development: Laravel-based document processing platform with multiple AI models (ChatGPT, DeepSeek, Ollama) for automated analysis and categorization; intelligent AI agents autonomously process documents, categorize content, and assign tasks; dynamic prompt engineering with RESTful APIs for document upload/OCR processing; JWT-based user management and real-time updates via webhooks; cloud storage with AWS S3/MinIO; microservices architecture for PDF optimization and image processing; monitoring and security best practices.
PHP Backend Developer at AlsterSpree Verlag GmbH
August 1, 2025 - October 8, 2025Backend system development for a robust multisite CMS platform in the insurance sector; API design and database optimization; performance improvements increasing site speed and conversion; Tech stack includes PHP/Laravel, MySQL, VueJS/NuxtJS, Linux/Docker, AWS S3.
Senior Software Engineer at Gastfreund GmbH
September 30, 2022 - October 8, 2025Microservices-based architecture; decoupled monolith; robust APIs using Yii2 and Laravel; design and implementation of scalable backend services; AI-powered automation for user workflows and content management; mentorship of junior developers; emphasis on API documentation and performance.
Software Engineer at Move24 Group GmbH
March 31, 2018 - October 8, 2025Platform development for B2C moving services across Europe; RESTful API development for PDF report generation and invoicing; SSO features for user authentication; comprehensive admin order management portal with API documentation; integrated AI-powered automation for reports and customer service workflows.
Senior Software Engineer at Folio3 Pvt. Ltd
July 31, 2014 - October 8, 2025Developed social networking features; PHP/Drupal7-based stack; e-commerce platform integration with Node.js; performance optimization and backend enhancements; coordination across teams to deliver features.
PHP Developer at naymspace software GmbH
October 31, 2016 - October 8, 2025Crafted WordPress plugins adhering to XLIFF standards; integrated PHP/Symfony with Node.js to build robust e-commerce solutions; backend optimizations improving performance and reliability.
Web Developer at Parse Ten Inc.
March 31, 2012 - October 8, 2025Refactored legacy code for reliability and maintainability; developed a content management system for a media company reducing maintenance costs by 35%; tech stack included PHP, MySQL, and related tools.
Web Developer at Game Ventures Pvt. Ltd.
October 31, 2010 - October 8, 2025Designed analytics tool for high-volume game data; integrated with game server for real-time data collection and analysis; system monitoring and performance tuning.
Senior Software Engineer at Berlinux Solutions GmbH
July 1, 2024 - PresentDeveloped Deutsche Bahn–collaborated projects using PHP, Joomla, AWS, Docker, MongoDB and shell scripting. Implemented CI/CD pipelines with GitLab to streamline deployments; created optimized Docker-based development and production workflows. Designed and deployed AI agents using MCP, prompt engineering and JSON schema outputs. Applied LLM fine-tuning and Retrieval-Augmented Generation (RAG) for knowledge-driven automation. Automated customer ordering processes and streamlined workflows; integrated vector databases for intelligent search and knowledge retrieval.
External Consultant & Developer at Docunout GmbH & Belegebox
August 31, 2025 - October 8, 2025Generative AI Integration & Agent Development: Built a Laravel-based document processing platform integrating multiple AI models (ChatGPT, DeepSeek, Ollama) for automated document analysis and categorization. Developed intelligent AI agents that autonomously process documents, categorize content, and assign tasks to users. Implemented dynamic prompt engineering with custom AI prompt configuration, RESTful APIs for document upload/OCR processing, and comprehensive user management with external service integration. Created automated workflows where AI agents handle end-to-end document processing with minimal human intervention. RESTful API Development: Built high-performance OCR API using Python FastAPI with PostgreSQL, implementing JWT authentication, batch processing with queuing systems, and webhook integrations for real-time updates. Cloud Infrastructure: Deployed and managed cloud-based storage solutions using AWS S3 and MinIO. AI Agent Architecture: Designed microservices for PDF o
PHP Backend Developer at AlsterSpree Verlag GmbH
January 31, 2024 - October 8, 2025Backend system development for a multisite CMS platform tailored to the insurance sector; implemented scalable backend services with robust API design, database optimization and caching strategies. Achieved notable performance improvements (website speed up ~40%, bounce rate reduction ~25%), contributing to a ~15% increase in online sales revenue.
Senior Software Engineer at Gastfreund GmbH
September 30, 2022 - October 8, 2025Led microservices architecture initiative by decoupling a large monolithic app into smaller services; designed robust APIs using Yii2/Laravel, implemented scalable backend systems, and integrated AI-powered automation for user workflows and content management. Mentored junior developers and fostered engineering best practices.
Software Engineer at Move24 Group GmbH
March 31, 2018 - October 8, 2025Platform development for B2C moving services across Europe; designed and built production-ready RESTful APIs for PDF report generation and invoicing, implemented SSO for user authorization, and developed a comprehensive order management admin portal with API documentation. Integrated AI-powered automation for reports and customer service workflows.
Senior Software Engineer at Berlinux Solutions GmbH
July 1, 2024 - PresentDeveloping Deutsche Bahn–collaborated projects using PHP, Joomla, AWS, Docker, MongoDB, and shell scripting. Implemented CI/CD pipelines in GitLab, created and optimized Docker-based development and production workflows, and designed/deployed AI agents using prompt engineering and JSON schema outputs. Applied LLM fine-tuning and Retrieval-Augmented Generation (RAG) for knowledge-driven automation. Automated customer ordering processes and streamlined workflows; integrated vector databases for intelligent search and knowledge retrieval; collaborated cross-functionally to deliver end-to-end AI-powered solutions.
External IT Consultant at Belegebox
August 1, 2024 - October 8, 2025Developing and fine-tuning LLMs using Ollama3 for automated document processing (reading text, categorizing files, assigning to users) and API integration with advanced prompt engineering. Building an OCR API with Python/FastAPI. Backend solution to optimize PDFs/images for text extraction. JWT-based authentication, batch processing with queues, webhooks, and scalable storage using AWS S3/MinIO.
PHP Web Developer at Alsterspree Verlag GmbH
January 31, 2024 - October 8, 2025Developed a multisite CMS platform for publishing companies using PHP/Statamic 3, VueJS, and MySQL. Built an efficient online reporting tool that streamlined reporting for marketing and sales teams, improving workflow productivity.
Senior Software Engineer at Gastfreund GmbH
September 30, 2022 - October 8, 2025Decoupled a large monolithic application into micro-services; built scalable APIs with Yii2 and Laravel. Implemented a robust Single Sign-On, performed code reviews, mentored juniors, and promoted coding best practices to improve overall code quality.
Software Engineer at Move24 Group GmbH
March 31, 2018 - October 8, 2025Led development of a user-friendly platform enabling B2C customers to access moving services across Europe. Built multiple APIs for PDF report generation, user authentication, and order management; contributed to an admin panel for sales and customer management.
Master Thesis Student (Technical Lead) at NETVAI UG
October 31, 2016 - October 8, 2025Designed system architecture, documented software, and prepared a business model canvas for master thesis. Key achievements include winning the AMÖ MöLo award for product innovations and delivering a comprehensive product plan and software documentation used to secure funding.
Software Developer at naymspace software
July 1, 2014 - October 8, 2025Web application development with Symfony2, Typo3, NodeJS, WordPress and Ruby; implemented layouts/templates and custom modules for client solutions.
Senior Software Engineer at Folio3
September 1, 2013 - October 8, 2025Senior role designing and implementing a social networking platform for executives (features included social login, newsfeed, messaging, groups, events).
Software Engineer at Folio3
December 1, 2012 - October 8, 2025Developed software solutions for clients, contributing to end-to-end development efforts.
Web Developer at Game Ventures
March 1, 2012 - October 8, 2025Integrated social platform components for a game; built an analytics tool using PHP and MongoDB; optimized data retrieval and integrated with the game server; created dashboards.
Web Developer at ParseTen
September 1, 2010 - October 8, 2025Developed small games and applications for social platforms; implemented features using HTML/CSS/JavaScript and integrated with platform APIs.
Intern Web Developer at Salsoft Technologies
February 1, 2009 - October 8, 2025Web development internship focusing on front-end and back-end tasks.
Senior Software Engineer at Berlinux Solutions GmbH
July 1, 2024 - PresentDeveloping Deutsche Bahn–collaborated projects using PHP, Joomla, AWS, Docker, MongoDB, and shell scripting. Implemented CI/CD pipelines in GitLab; optimized Docker workflows; designed and deployed AI agents; applied LLM fine-tuning and Retrieval-Augmented Generation for knowledge-driven automation.
External Consultant & Developer at Docunout GmbH & Belegebox
August 1, 2025 - October 8, 2025Generative AI integration & agent development: built Laravel-based document processing platform integrating multiple AI models (ChatGPT, DeepSeek, Ollama) for automated document analysis and categorization. Implemented dynamic prompt engineering with custom AI prompt configuration, RESTful APIs for document upload/OCR processing, and comprehensive user management with external service integration.
PHP Backend Developer at AlsterSpree Verlag GmbH, Berlin
August 1, 2025 - October 8, 2025Backend system development for multisite CMS platform in the insurance sector; performance optimization, API design, SSO integration, and caching; implemented AI automation for reports and workflows.
Senior Software Engineer at Gastfreund GmbH
January 31, 2024 - October 8, 2025Microservices-based architecture; decoupled from monolith; API design, caching, and AI-powered automation for user workflows; mentoring junior engineers.
Software Engineer at Move24 Group GmbH
September 30, 2022 - October 8, 2025Platform development for B2C moving services across Europe; RESTful API for PDF reports and invoicing; SSO; admin portal; AI automation for reports and workflows.
Senior Software Engineer at Folio3 Pvt. Ltd
July 31, 2014 - October 8, 2025Social networking platform for executives; features including social login, user profiles, newsfeed, messaging, groups, and events; PHP/Drupal7; MySQL; Linux; cloud deployment and CI practices.
Web Developer at naymspace software GmbH
October 1, 2016 - October 8, 2025Crafted WordPress plugins adhering to XLIFF standards; integrated PHP and Symfony with Node.js to develop a robust e-commerce platform; backend optimization improving site speed and reducing bounce rate.
Web Developer at Game Ventures Pvt. Ltd.
September 30, 2013 - October 8, 2025Designed analytics tool using PHP and MongoDB for a high-volume game; integrated real-time data with game server; system monitoring.
Web Developer at Parse Ten Inc.
October 31, 2010 - October 8, 2025Refactored legacy code to improve reliability, scalability and maintainability; developed a CMS for a media company reducing maintenance costs by 35%.
Web Developer at Parse Ten Inc.
March 31, 2012 - October 8, 2025Refactored legacy code to improve reliability, scalability and maintainability; developed a CMS for a media company reducing maintenance costs by 35%.
Project/Consulting at Folio3 Pvt. Ltd (Projects)
March 31, 2018 - October 8, 2025Worked on multiple projects including vexpats.online, belegbox.de, gastfreund.net, piqs.org, budget.social-gizmo.com, vislog.net focusing on PHP/Laravel-based solutions, AI integration and cloud deployments.
External Consultant & Developer at Docunout GmbH & Belegebox (Part-Time/Remote)
August 1, 2025 - August 1, 2025Generative AI Integration & Agent Development: Built a Laravel-based document processing platform integrating multiple AI models (ChatGPT, DeepSeek, Ollama) for automated document analysis and categorization. Developed intelligent AI agents that autonomously process documents, categorize content, and assign tasks. Implemented dynamic prompt engineering with custom AI prompt configuration, RESTful APIs for document upload/OCR processing, and comprehensive user management with external service integration. Created automated workflows where AI agents handle end-to-end document processing with minimal human intervention. Cloud storage with AWS S3/MinIO and microservices for PDF optimization and image processing; orchestrated production AI workloads.
PHP Backend Developer at AlsterSpree Verlag GmbH, Berlin
August 1, 2025 - August 1, 2025Backend System Development: Built a robust multisite CMS platform for the insurance sector with scalable backend services, API design, database optimization, and caching. Implemented SSO for user authentication, and integrated AI-powered automation for report generation and workflows.
Senior Software Engineer at Gastfreund GmbH, Berlin
January 31, 2024 - January 31, 2024Microservices Architecture: Decoupled a large monolithic application into smaller independent services. Backend system design with API documentation, database optimization, and caching for high-traffic apps. Integrated AI-powered automation for user workflows and content management. Mentored 2-3 junior developers and fostered engineering best practices.
Software Engineer at Move24 Group GmbH, Berlin
September 1, 2022 - September 1, 2022Platform Development: Led the development of a user-friendly platform for B2C moving services across Europe. RESTful API development for PDF reports and invoicing, SSO features, and an admin portal with API documentation. Integrated AI-powered automation for report generation and customer service workflows.
PHP Developer at naymspace software GmbH, Kiel
October 1, 2016 - October 1, 2016Crafted WordPress plugins adhering to XLIFF standards and integrated PHP/Symfony with Node.js to support a robust e-commerce platform. Optimized backend processes, achieving faster performance and reduced bounce rates.
Senior Software Engineer at Folio3 Pvt. Ltd, Karachi
July 1, 2014 - July 1, 2014Designed and developed a social networking platform for executives, with features including social login, newsfeed, messaging, groups, and events; worked with PHP/Drupal7 stack.
Web Developer at Game Ventures Pvt. Ltd., Karachi
September 1, 2013 - September 1, 2013Built an analytics tool using PHP and MongoDB for high-volume games and integrated social platform components; monitored performance and alerted stakeholders.
Web Developer at Parse Ten Inc., Karachi
March 1, 2012 - March 1, 2012Refactored legacy code to improve reliability and maintainability; developed a content management system for a media company.
Education
Master of Information Technology at Fachhochschule Kiel
October 1, 2013 - February 1, 2017Bachelor of Science in Computer Science at University of Karachi
January 1, 2006 - December 31, 2010Master of Information Technology at Fachhochschule Kiel, Kiel, Germany
October 1, 2013 - February 1, 2017Bachelor of Science in Computer Science at University of Karachi, Karachi, Pakistan
January 1, 2006 - December 1, 2010Master of Information Technology at Fachhochschule Kiel, Kiel, Germany
October 1, 2013 - February 1, 2017Bachelor of Science in Computer Science at University of Karachi, Karachi, Pakistan
January 1, 2006 - December 31, 2010Master of Science (MS), Information Technology at Fachhochschule Kiel
October 1, 2013 - February 1, 2017DevOps and AWS Training and Certification at Clarusway
February 1, 2024 - August 1, 2024Bachelor of Science - BS, Computer Science at Karachi University
January 1, 2006 - December 1, 2010Senior Secondary Certificate, Science at Habib Public School, Karachi
January 1, 1993 - December 1, 2003Masters in Information Technology at Fachhochschule Kiel, Kiel, Germany
October 1, 2013 - February 1, 2017Bachelor of Science in Computer Science at University of Karachi, Karachi, Pakistan
January 1, 2006 - December 1, 2010Master of Information Technology at Fachhochschule Kiel, Kiel Germany
October 1, 2013 - February 1, 2017Bachelor of Science in Computer Science at University of Karachi, Karachi, Pakistan
January 1, 2006 - December 1, 2010Qualifications
AWS Certified Solutions Architect - Associate
January 11, 2030 - October 8, 2025AWS Certified Solutions Architect - Associate
January 11, 2030 - October 8, 2025AWS Certified Solutions Architect - Associate
January 11, 2030 - October 8, 2025AI for All: From Basics to GenAI Practice
January 11, 2030 - October 8, 2025SQL (Intermediate)
January 11, 2030 - October 8, 2025Certificate Amazon Web Services Cloud Practitioner
January 11, 2030 - October 8, 2025AWS Certified Solutions Architect - Associate
January 11, 2030 - October 8, 2025Arc Certified Remote Developer
January 11, 2030 - October 8, 2025AWS Certified Solutions Architect - Associate
January 11, 2030 - October 8, 2025AWS Certified Solutions Architect - Associate
January 11, 2030 - October 27, 2025Industry Experience
Software & Internet, Computers & Electronics, Professional Services, Media & Entertainment
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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