Marcin Maciak Email & Phone Number

Warszawa, Woj. Mazowieckie, Polska

Colaborating with diffrent depertamens to deliver best class Machine Learing solutions. Presenting projects in various organization stakeholders levels. Onboarding new team members, building creative environment based on knowledge sharing. Developing and maintenance of machine learning models (XGBoost, LightGBM, Catboost, as well as NLPs ) in Near-Real-Time environment in Python. Building end to end solution, starting from defining target, data extracting, feature selecting, data transform and fitting model, ending with publishing model and preparing monitoring Dashboards and cyclic review. Using on premise (Linux) as well as GCP (BiqQuery and AI Notebook) environment. Development of model validation reports according to Polish regulatory requirements. Supporting ongoing project and preparing technical documentation for external IT providers. Ad-hoc analysis.

Responsiblity for creating, developing and validation of prediction and segmentation models in R and SAS EM(logistic regression, decision trees, neural network, xboost etc). Explaining models results for business clients. Preparing ad-hoc business analysis and recommendations base on Big Data Hadoop environment (Hive, Sqoop). Reporting effects of marketing campains based on models. Providing analytical support of ongoing projects.

Warsaw

Responsibility for creating ETL queries in 4GL and SQL as part of Asset Liquidity Management Project in top polish Bank. Participation in testing of migrated areas. Preparing documentation related to finished phases of the project.

Warszawa, Woj. Mazowieckie, Polska

Senior Analyst in Benefit Systems SA. Responsibility for creating and developing predictions models. Reporting and forecasting results of cost optimization actions (GLM, Logistic Regresion, Decission Trees). Cooperating with other teams to gain effectiveness of their actions. Biulding maps of processes in UML notation, Create SAS projects base on data warehouse to increase amount of automatic reports. Project Owner of a new anti-fraud IT System.

Warszawa, Woj. Mazowieckie, Polska

Analyst in Benefit Systems SA. Responsibility for reporting and forecasting results of cost optimization actions. Recommendation of proper changes to improve long-term results and mapping of business process. Supervision of internal data base integration project. Processing and analyzing of Big Date bases in SQL. Preparation of ad hoc.

Responsibile for support to customers and business partners in processing their requests efficiently in an agreed time boundaries. Maintain great data quality awareness and adequacy. Look for requisite information in system or archive. Clarify understanding of customers’ needs and issues, and respond so that their expectations are met and policies and procedures are followed. Analyzing customer behavior, risk assessment and making decision based on limited information. Identification of opportunities and implementation process improvements within immediate area of work. Form and maintain long term relationships with Compliance, RMs and other business partners from different EMEA jurisdictions.

Postgraduate Studies, Statistic Analyzing And Data Mining At Warsaw School Of Economics

Master Of Economics, Finance And Banking