Christian J.
Machine Learning/AI Engineer

Skills

Java

Python

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Bio

Data Scientist and Machine Learning Specialist with a background in systems development, proficient in data collection, hypothesis testing, and feature engineering. Experienced in formulating and evaluating solution proposals within diverse project environments.

Machine Learning Engineer
10/1/2021 - 12/1/2023

Led the development and optimization of an instant pricing platform within the transport industry. Conducted comprehensive exploratory analyses across various subsectors, leveraging advanced analytics techniques and industry-specific methodologies. Utilized Python and R for data manipulation and statistical modeling, ensuring accurate and relevant insights. Implemented machine learning algorithms to enhance pricing accuracy and predictive capabilities. Employed SQL for database management and complex queries, facilitating robust data retrieval and processing. Developed interactive dashboards and reports using Tableau and Power BI to communicate findings effectively to stakeholders. Ensured seamless collaboration with teams by utilizing project management tools such as Jira and Confluence. Perfected the application of version control systems like Git for collaborative code maintenance and version tracking.
Data Scientist
1/1/2018 - 10/1/2021

Performed comprehensive analysis of business problems, coupled with detailed data analysis to facilitate solution proposal preparation. Demonstrated strong capabilities in model training and deploying models in production environments. Successfully presented results to stakeholders, ensuring clarity and actionable insights.

Achieved accomplishments in Revenue Assurance, Revenue Forecast, Text Message Classification, Phishing Detection, and Automated Chatbot Model Training. Utilized advanced data analysis and machine learning techniques to drive strategic decisions and process improvements.
Technical Lead
12/1/2016 - 1/1/2018

Coordinated the Platform Development and Support Team, demonstrating advanced technical proficiency in managing and enhancing IT infrastructures. Developed expertise in cloud technologies, including AWS and Azure, to support platform scalability and reliability. Implemented and maintained CI/CD pipelines using Jenkins and GitLab, ensuring efficient and error-free deployment processes. Utilized Docker and Kubernetes for containerization and orchestration of microservices architecture, optimizing application performance and resource management. Leveraged monitoring tools such as Prometheus and Grafana to ensure system health and proactively address issues. Developed in-depth knowledge of networking protocols and security best practices to safeguard platform integrity and data privacy. Employed Agile methodologies, specifically Scrum and Kanban, to streamline project management and team collaboration. Enhanced technical documentation and knowledge-sharing practices, fostering an environment of continuous improvement and innovation.
Senior Analyst
4/1/2012 - 12/1/2016

Full Stack Developer. Developed high availability and high performance, scalable, and fault-tolerant platforms utilizing distributed architecture. Demonstrated technical expertise in NoSQL databases and message queues. Proficient in Java and Python development, with extensive experience in virtualization, cloud computing, and auto-scaling. Implemented automated build processes and adhered to TDD (test-driven development) methodologies. Applied Enterprise Integration Patterns and Functional Programming in project development. Passionate about tackling challenges in distributed systems.
Java Developer
6/1/2011 - 4/1/2012

Specialized in developing Java web applications tailored for inventory management systems. Gained extensive expertise in Java, Spring Framework, and Hibernate for creating robust server-side applications. Utilized JSP and Thymeleaf for dynamic web page rendering. Implemented RESTful APIs to facilitate seamless interaction between the client and server. Demonstrated strong skills in front-end technologies, including HTML, CSS, JavaScript, and jQuery, to create responsive user interfaces. Practiced agile methodologies for efficient project management and coordinated version control using Git. Integrated databases like MySQL and Oracle to ensure reliable data storage and retrieval. Applied testing frameworks such as JUnit and Mockito for unit testing and ensured code quality. Developed proficiency in utilizing tools like Maven for dependency management and Jenkins for continuous integration and deployment (CI/CD). Successfully deployed and maintained applications on AWS, leveraging services like EC2 and RDS, to ensure scalable and high-availability solutions.
Java Developer
11/1/2010 - 6/1/2011

Gained expertise in developing robust systems for the banking market using the Java EE platform. Acquired skills in implementing enterprise-level applications and services that ensured secure and efficient financial operations. Accustomed to working with technologies such as EJB, Servlets, JSP, and JMS, and integrating backend services with relational databases like Oracle and MySQL. Demonstrated proficiency in utilizing frameworks and tools like Hibernate, Spring, and Apache Tomcat. Managed source code and project versioning with Git and SVN, and followed software development methodologies such as Agile and Scrum.
Software developer
6/1/2010 - 10/1/2010

Built advanced proficiency in Java, leveraging the Spring and Hibernate frameworks to design and optimize server-side applications. Conducted extensive work with front-end technologies such as Angular and jQuery, integrating them seamlessly with back-end services. Demonstrated strong skills in SQL and Oracle databases to ensure efficient data management and retrieval. Utilized Maven for project builds and Jenkins for continuous integration and continuous delivery (CI/CD). Employed RESTful services for implementing robust API integrations. Ensured effective version control and collaborative code maintenance using Git and SVN platforms. Engaged in unit and integration testing using JUnit, enhancing code reliability and performance. Contributed to project management and agile methodologies, utilizing tools like Jira and Confluence to streamline workflow and documentation processes.