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Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
About Me ● Backend & Data Engineering expert with 6+ years industry experience in cloud technologies, ● 10 years of coding experience, and 2000+ problems solved through competitive programming. ● Passionate mentor, guided 100+ aspiring people throughout my journey. Here's a glimpse of what I can accomplish for you, but the possibilities don’t stop here ;) Mentorship Sessions ● Guidance for college/university project & assignments ● Short & long term mentorship on backend, cloud or data engineering ● Live 1:1 resume review ● Mock DSA coding interview ● Code review with professional guidance ● How to plan & manage a real life project (methodologies, challenges, team, etc) ● How to deal with stress & challenges at work (deadlines, communications, disagreements, etc) Development ● Web app (Django, flask, fastAPI) ● AI Agentic Solution & N8N Automation ● Cloud infrastructure development, serverless app ● Database design, performance optimisation ● Troubleshoot, debugging with proper communication ● Data Engineering, ETL Pipelines ● Web scraping, data collection and data visualization ● Data Ingest, process, and transform for analytics ● Automate tasks and workflows with Python scripts ● Customised Python library and reusable django app ● Integrating third party APIs and services (stripe, social media, etc) How do I help? Just like a good doctor with a patient—I listen carefully, analyze deeply, and work toward the best solution. When mentoring, I’m more caring :) My work ethics? Honesty and respect—no false promises & motivation, no time wasting. I value direct & productive discussions.
Application Developer in a wide variety of business applications. Particularly interested in server side technologies. Experienced in Java J2EE web application development including Content Management System (Alfresco), Portal Applications (Liferay and SharePoint). Experience in interfacing different business application using middleware servers (BizTalk, SSIS). Experience in Big Data Implementation using Spark, Scala, Hive, Hbase, and Pig. Experience in various domain like banking (credit card application), media & entertainment, Logistic and manufacturing. Specialties: Big Data Application implementation in Scala and spark using Horton works platform. Design and Implemented projects with data load up to 1 TB per hour with complex transformation.
Business Intelligence Engineer with 10+ years of Looker/LookML experience and 1 year of Tableau experience. Former data scientist, web developer, and operations analyst. I'm happy to help you with building analytics solutions, whether it's just some quick questions or a longer consulting arrangement. I have worked within FAANG teams and other big tech organizations and have a great understanding of how things *should* work when the right structures are in place. I've seen enough examples of things breaking to have a good "sixth sense" with troubleshooting and take pride in my ability to solve urgent issues.
Highly experienced Java Software Engineer with over 9 years of expertise in designing and implementing enterprise-level identity and access management (IAM) systems. Proven track record of leading complex software projects, from concept to deployment, utilizing a deep knowledge of distributed systems, microservices, and secure authentication protocols. Adept at managing cross-functional teams, conducting detailed code reviews, and driving continuous improvement in software development practices. Passionate about solving challenging technical problems and delivering scalable, high-quality software solutions. Currently focused on advancing my career in software engineering and project management.
I have experience as a Data Engineer, Machine Learning Engineer, Organization/Process designer, and Team Leader. Here on CodeMentor, I focus on helping people understand their business or personal needs and turn them into, for example, learning paths, strategy documents, software architectures, or any other output that serves their purpose. I'm also proficient in prototyping and software for internal use, using no-code tools such as Notion, Airtable, NocoDB, Baserow and automation suites like Zapier or n8n. On these tools, I can offer direct mentoring and troubleshooting support.
I'm currently a full-time startup managing director with main focus in technology, where provide two solutions: 1) driving behavior evaluation based commercial fleet management 2) rolling stock based digitalized railway infrastructure inspection based on our dual edge-AI camera and enterprise cloud platform. I spend most of my time on managing developers or developing myself for the industrial design, AI engine, computer vision application, hardware (10 layer PCB with 3 subsystems), imaging system and camera, cloud application and a custom Linux kernel where I develop some of the basic kernel drivers as well business development and some communications. Last year I had 5 masters thesis students in - AI, embedded systems and cloud - where I was their industrial advisor and indeed that was great fun for me. Now that I lack that opportunity, I joined Codementor to have similar engagements. I hold a double masters in Embedded Systems with Innovation and Entrepreneurship from KTH Royal Institute of Technology and Technische Universität Berlin where I held an excellence scholarship. I'm bilingual in English and Turkish. Also can communicate in German, Spanish and French in a basic level. You can check my Codementor profile here: https://www.codementor.io/@tolgavarol
I'm a Pythonista who builds backend systems, Devops Automation, and Data Pipelines. I have also contributed to open-source projects like Pandas and Airflow. I am a LinkedIn learning instructor and also run my own PythonToProject 5-week Online Bootcamp. I am a tech speaker and have presented at Pycon Australia, India and Berlin Buzzwords
As a Generative AI Engineer, I am responsible for developing, designing, and maintaining cutting-edge AI-based systems to ensure smooth and engaging user experiences. My role involves creating and developing generative models that have the ability to generate new content, such as images, text, and audio, based on patterns. I work across client teams to develop and architect Generative AI solutions using machine learning and other AI technologies. Additionally, I participate in activities which includes refining and optimizing prompts to improve the outcome of Large Language Models (LLMs). I also evaluate and select appropriate AI tools and machine learning models for tasks, as well as build and train working versions of those models using Python and other open-source technologies.
After 15+ years as a software engineer, I've worked through a lot of sticky problems. Let's use my experience to help you get unstuck and back to the fun parts of programming
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The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Data Engineering project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Data Engineering request on Codementor, check out our article.
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We do a comprehensive technical and communications screen of all Data Engineering developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Data Engineering developers’ user satisfaction rates.
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