Khaled (Dr.) Teilab-Consultant / DevOps Engineer
Check rate
Experience
Consultant / DevOps Engineer
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Porsche ID is a unified digital identity platform providing secure authentication and seamless access across Porsche’s online services, mobile apps, and connected vehicle features
- Designed and implemented new authentication and authorization functionalities for both users and systems
- Ensured high availability, security, and performance to deliver a flawless digital experience for Porsche customers
- Technologies: Auth0, Angular, Tailwind, AWS, Terraform, Github
- Methodologies: Scrum and SAFe
Freelance consultant and full-stack engineer
Freelance
Consultant / Algorithm developer
DB InfraGO, a subsidiary of Deutsche Bahn
- AFK is an engine designed to calculate optimized train routes and schedules, considering infrastructure, time, and traffic constraints
- Enhanced the results by implementing and modifying several components of the engine
- Carried out primary programming tasks in C++ and occasionally modified Java microservices to provide necessary input data
- Technologies: C++, Gtest, Protocol Buffers, ActiveMQ, Redis, Docker, AWS, Jenkins, Java, Spring Boot
- Methodologies: Event Driven Architecture, Scrum and SAFe, Test-Driven Development
Consultant / Full-stack engineer
DB InfraGO, a subsidiary of Deutsche Bahn
- iTrain is a web application that provides train constructors (timetable planners) with a seamless interface for submitting and visualizing train routing and scheduling requests
- Developed the REST-API backend using Django and Django Rest Framework and the frontend using Angular, RxJS, and Angular Material
- Implemented various UIs and endpoints for data ingestion, processing, retrieval, and visualization
- Led the implementation of security measures, real-time content updates via WebSocket communication, and user authentication
- Configured the app in Microsoft Entra and implemented single sign-on authentication using OAuth2/OIDC
- Technologies: Python, Django, Django ORM, Django-Rest-Framework, TypeScript/JavaScript, Angular, Angular Material, HTML, CSS, RxJS, pytest, Cypress, PostgreSQL, REST APIs, WebSocket, OAuth 2/OIDC, Docker, AWS, Jenkins, Gitlab
Senior consultant
CGI Deutschland B.V. & Co. KG
Backend developer
badenova AG & Co. KG
- The badenova WLP is a multi-tenant e-commerce platform developed for energy supply companies to market their products
- Implemented several platform modules, including order management, integration with external services, and a stateless customer self-service interface that relied on customer data from the energy supplier's external system
- Technologies: Ruby, Ruby on Rails, REST APIs, HTML, CSS, RSpec, PostgreSQL, Ubuntu, Jenkins, GitLab
- Methodologies: Scrum, Object-Oriented Programming, Test-Driven Development
Software developer
Taktsoft GmbH
Backend developer
W&L Internationale Golf Aktiengesellschaft
- AWGC is a mini tournament series played at over 300 golf courses across Germany and worldwide
- Implemented parts of the web application, including querying results from external APIs, saving and displaying the results, and performing result analysis
- Technologies: Ruby, Ruby on Rails, RSpec, SQL, REST APIs, HTML, CSS, Jenkins
- Methodologies: Scrum, Object-Oriented Programming, Test-Driven Development
Postdoctoral researcher
Institute for Theoretical Physics, Goethe-University
- I developed a mathematical model to describe (sub-)nuclear particles and their interactions
- Created automation scripts to manage calculations on a computer cluster and analyze the results
- Published and presented findings in various forums
- Organized seminars, delivered lectures, and supervised students
- Technologies: C++, Python, Mathematica, Bash, Latex, PowerPoint
Postdoctoral researcher
ExtreMe Matter Institute
Doctoral researcher
Goethe-University
- Developed custom hardware to detect and study short-lived particles produced in nuclear reactions
- Created advanced statistical algorithms to analyze the reaction data
- Wrote automation scripts to manage analysis tasks on a computer cluster and ran Monte Carlo simulations
- Presented and published findings in various forums
- Technologies: C++, CERN ROOT, Bash, Latex, PowerPoint
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Education, Information Technology, Transportation, Energy, Automotive, and Sport.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Research and Development, Information Technology, and Product Development.
Summary
I have over 15 years of experience in software engineering, data analysis, and physics research. My expertise includes designing and implementing statistical algorithms for large-scale data analysis, developing full-stack web applications in the e-commerce and transport domains, and optimizing complex scheduling problems. With strong analytical and mathematical skills, I thrive in collaborative environments, maintaining a strategic focus on overarching goals and cross-team dependencies.
Skills
- Programming: C++, Python, Ruby, Typescript
- Cloud: Aws
- Web Development: Django, Angular, Ruby On Rails
- Containerization: Docker
- Databases: Postgresql, Redis
- Version Control: Git, Gitlab, Gerrit
- Data Science: Root, Pandas, Scikit-Learn
- Operating Systems: Ubuntu
Languages
Education
Institute for Nuclear Physics, Goethe-University
PhD in experimental nuclear physics · experimental nuclear physics · Frankfurt, Germany · magna cum laude
Institute for Nuclear Physics, Goethe-University
Master’s in experimental nuclear physics · experimental nuclear physics · Frankfurt, Germany · very good
Certifications & licenses
Scaled Agile Inc
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Khaled is based in Frankfurt am Main, Germany.
Khaled speaks the following languages: Arabic (Native), German (Advanced), English (Advanced).
Khaled has at least 18 years of experience. During this time, Khaled has worked in at least 9 different roles and for 10 different companies. The average length of individual experience is 2 years and 8 months. Note that Khaled may not have shared all experience and actually has more experience.
Based on recent experience, Khaled would be well-suited for roles such as: Consultant / DevOps Engineer, Freelance consultant and full-stack engineer, Consultant / Algorithm developer.
Khaled's most recent position is Consultant / DevOps Engineer at Dr. Ing. h.c. F. Porsche Aktiengesellschaft.
In recent years, Khaled has worked for Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Freelance, DB InfraGO, a subsidiary of Deutsche Bahn, and CGI Deutschland B.V. & Co. KG.
Khaled is most experienced in industries like Education, Information Technology, and Transportation. Khaled also has some experience in Energy, Automotive, and Sport.
Khaled is most experienced in business areas like Research and Development, Information Technology, and Product Development.
Khaled has recently worked in industries like Information Technology, Transportation, and Automotive.
Khaled has recently worked in business areas like Information Technology.
Khaled holds a Doctorate in experimental nuclear physics from Institute for Nuclear Physics, Goethe-University and a Master in experimental nuclear physics from Institute for Nuclear Physics, Goethe-University.
Khaled has 1 certificate: Certified SaFe® 5 Practitioner.
Khaled is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
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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