today

Game design

Remote work, Ukraine · $2800 · 5 years of experience · Intermediate

Game design, Lead Game design, Analyst Tableau, Confluence, JIRA, Unity3D, Unreal Engine 4

game design, UX, analyst

Interesting projects


yesterday

Разработчик баз данных

Remote work, Russia · $2000 · 8 years of experience · Pre-Intermediate

SQL, Transact SQL, PL/SQL Проектирование и разработка баз данных с нуля Доработка существующих баз данных Проектирование архитектуры систем Управление командой разработчиков Интеграция различных систем Аналитика/Разработка отчетности Управление проектами

Product management, SQL, T-SQL, MySQL, PL/SQL, PostgreSQL

Большой опыт проектирования и реализации сложных систем. Томское пиво - внедрение бюджетирования отделов (Парус), внедрение системы мобильной торговли (Оптимум), внедрение системы управления ресторанным комплексом (R-Keeper + StoreHause) Сибирская Аграрная Группа - разработка и внедрение системы прослеживаемости на предприятиях холдинга (Убой, Мясопереработка, Производство комбикоромов) Множество проектов интеграции различных систем с решениями на платформе 1С.

Участие в сложных и интересных проектах


18 October

Sr. DB / DWH / BI Developer (remote only)

Remote work, Ukraine · $3200 · 9 years of experience · Advanced/Fluent

Understanding of relational database concepts; estimation, implementation planning; development, integration and deployment; Good knowledge of SQL, PL/SQL and Transact-SQL; + sql statements performance tuning; + reverse engineering of undocumented sql and pl/sql code; Experience with Oracle, MS SQL Server, mysql, postgres and other db, DWH; Experience with Oracle BI (repository, analysis, dashboard, agent development) and SAP Business Objects (universe and report development); Experience with data quality & validation; Experience with VBA, unix shell scripts (basics); SVN & Git; Experience with support of front-end system (printing forms, table settings); Experience with support of Basel II and ARZ reporting systems; Linux enthusiast; English: C1 Advanced level; Polish: almost fluent speaking and very good writing level; Freelance experience with Oracle, MS SQL Server, Postgres and MySQL. My current project details: - (investigating) PySpark, Parquet, SQLite, Amazon Redshift, Amazon S3 : generating Parquet files using PySpark from different db types, checking result using SQLite locally, uploading into Amazon and making queries; - (dba) SQL Server: backup, restore, check and interpret audit tables, create users, grant access rights; PostgreSQL RDS and self-hosted instance: enable and configure logical decoding for audit usage - (support) MySQL, basic perl scripting: uploading csv files into remote MySQL API using perl, data validation - (data integration) preparing backend to store Sendgrid API data in PostgreSQL - (dealing with legacy) transforming legacy database into structured and documented one - (data science) data cleaning, deduplication, comparing records etc. - (migration) SQL Server -> PostgreSQL (custom scripts); Legacy MySQL -> Prod MySQL (mysqldump); Legacy MySQL -> stage PostgreSQL (pgloader) - (reporting) dealing with advanced excel-like formulas in Klipfolio in order to pass various input parameters

Jira, Oracle, PL/SQL, SQL, Ubuntu, MS SQL Server, MySQL, T-SQL, Git, Linux, DWH, PostgreSQL, XML, PL/SQL; индексы; оптимизация запросов; хранимые процедуры, MSSQL, SVN

Developing and supporting of fraud prevention alarm system for internet banking. Also I've implemented client risk evaluation system based on information about client's operations.


18 October

Data analyst

Kyiv, Lviv · $2500 · 4 years of experience · Upper Intermediate

Main responsibilities from the last to jobs: - Resolve support issues and provide fast troubleshooting (ETL/BI) - Configuration and management of monitoring and alerting (Tableau/ETLFM) - Configuration and management of data validation processes - Optimizing Tableau & Redshift performance - Monitor and react on system alerts, improve overall sustainability Using tools: Tableau, PostgreSQL, Amazon Redshift, ETLFM, Bitbucket, Rundeck - Trace back reporting results through several databases and systems back to the original source records - Test the developed solution - Developing QlikView applications - Ensure data accuracy and correction of mistakes - Provide timely, relevant and complete reports using SQL quires - Developing metrics and processes to ensure quality standards are met on new and existing data - Answers general and advanced questions to assist users with QlikView - UI research and optimizations Using tools: SQL scripting, QlikView, MS Excel,Grafana, Google analytics, Jira, Trello

PostgreSQL, QlikView, Git, SQL, Tableau, Scrum

- Decreased number of errors in Tableau (reports,datasource refresh fails) from 130 to 5 in average per day. - Migration from BI host jobs scheduling to Rundeck. - Described 95% of metrics used in QlikView applications (30+ apps) - Initiated the "definition of done" to close the task - Initiated the dashboard creation for monitoring system stability and data loading - Built a daily report system for 4 departments and 2 projects - Developed 15+ dashboards for ad-hoc tasks in Metabase using complex PosgreSQL queries - Created a model of daily plans and forecasts for 10+ metrics


17 October

Data scientist

Kyiv · $2000 · 6 years of experience · Intermediate

R, Python, Julia, tensorflow, keras, mxnet, xgboost, caret Machine learning, deep learning, data science, biostatistics

Biostatistics, Clinical trials, Machine Learning, R (language), Deep Learning, Python, Julia


17 October

Data Scientist / Data analytics

Europe · $3000 · 5 years of experience · Upper Intermediate

Data scientist 09/2018 – Present Appodeal, Belarus, Minsk - Were proposed and adopted a number of changes FFMs, it contributed to the enhancement of the precision model (has been excluded overfitting, auto-tuned Hyperparameters); - Created new features for FFMs model, which has led to an increased accuracy model of more than 40%; - Has been implemented a pipeline for FFM, predicted IMS to CLICKS, CLICKS to INSTALLS, which has led to a great increase in the profit. Data Analyst 09/2017 – 09/2018 Playgendary, Belarus, Minsk - Conducting verification of compliance all in-app monetization events (purchases and subscriptions); - Creating reports from RAW data has been located on the AWS server (Python + Unix); - Organizing process for creating, preprocessing and analysis data collection; - Building models (Linear Regression, Logistic Regression) to address business problems (enhancing LTV, players classification); Data Analyst 09/2016 – 09/2017 LifeCell, Kyiv, Ukraine mobile operator - Conducted reports for implementation of marketing strategies LTE, will lead to 18% growth in customer acquisition; - Computation customer habits using machine learning package Python Scikit-learn. Carrying out specified data processing and statistical techniques for active subscribers (> 8M); - Developing an automated process of analyzing data implemented in Python; - Handling of large datasets stored in relational and non- relational databases (Oracle, MongoDB).

Machine Learning, Python, Data Science, scikit-learn, SQL, pandas, numpy, Math, Kaffka, Vertica, Docker, Linux, Algorithms, Jupyter Notebook, Git, Data Mining, Tableau

Data analyst who has been at the forefront of the telecom industry for the past 5 years. Adept of data analysis and visualization data. Specialize in comprehensive automated processing in Machine learning, using huge experience in Python, Scikit-learn, pandas and big data.


16 October

Data Engineer

Remote work, Ukraine · $5500 · More than 10 years of experience · Upper Intermediate

I am a DHW / ETL Developer with a strong understanding of business needs. I have more than ten years of experience as an IT expert in various industries and can understand business challenges and opportunities quickly. Briefly, I can solve your problems and deliver value without extra supervising. I have experience with: - Azure Data Factory v2 Development - Azure Data Lake Storage Integration - Azure Databricks/Python Development - MS SQL 2008 / 2012 / 2014 Data Warehouse Development - MS SQL 2008 / 2012 / 2014 SSIS ETL Process Development - MS SQL Azure Development - SAP HANA Data Design & Modeling, Performance Optimization & Troubleshooting - SAP HANA XSJS Services Development - SAP DataServices (ex. Business Objects Data Services) 4.2 ETL Process Development

Business Objects Data Services, MS SQL Server, SAP HANA, SSAS, SSIS, Python, DWH, Azure Data Factory, Azure, ETL

Sales reporting system based on MS SQL SSAS + MS SharePoint 2007 (SharePoint Excel Services). Data collected from legacy and current accounting systems using MS DTS / SSIS. DHW / ETL for price-monitoring. Collect SKU price data from regional databases of Sales Force Automation system using MS SSIS. Various DWH / ETL / web-services projects (customer and project details under DNA) on SAP technologies (SAP HANA, SAP XSJS, Business Objects Data Services).

Looking for Data Engineer position opportunity. Big Data / Data Science in prospect.


16 October

Test Engineer at Credit Suisse

EU, US · $3000 · 3 years of experience · Advanced/Fluent

• Enterprise Data Toolkit (Collibra, Tableau, Data Quality Incident Management) • Motorola Public Safety LTE Broadband communication solutions • ABB/Ventyx Network Manager SCADA system and EMS applications • Atlassian JIRA/Confluence, TestRail, Microsoft Team Foundation Server, HP ALM/Quality Center defect tracking and reporting, test management systems • Tenable SecurityCenter (Nessus) vulnerability scanner • VMware vCloud Director, ESXi and vShere virtual environments • Linux, Windows servers administration and network setup • Oracle, Avanti databases, SQL Developer • Python for test automation scripts • MathCAD, Mathematica • ISTQB Certified Tester Foundation Level (CTFL) • ISTQB Advanced Level Test Automation Certified Engineer (CTAL-TAE)

Linux, English, SQL, Jira, Agile

Work experience in world know corporations such as ABB, Motorola Solutions, Credit Suisse.

Test Automation Engineer / Test Lead Relocation to US, Germany, GB, Switzerland More then average salary


15 October

Data analyst 

Kyiv · $2000 · 4 years of experience · Upper Intermediate

Analyst with experience of interpreting and analyzing data in order to drive successful business solutions. Teamwork-oriented, attentive to details, responsible, with creative problem solving skills. Experienced in post-analysis, reporting automation, data analysis and visualization by using SQL (oracle, mysql, athena, BigQuery), bases of Python, Power BI, Power Query, Excel, Spreadsheets, Think-cell etc. Have experience in different industries like Telecommunications, FMCG and Information technologies.

SQL, Power BI, English, Tableau, MySQL, Databricks, Athena, AWS, AWS S3, Python, YAML, Google Spreadsheets Api, Google BigQuery


15 October

Machine Learning Engineer

Odesa · $800 · 8 years of experience · Intermediate

Computer Skills: OS: Windows, Linux Programming: C, Python (GraphLab, Pandas, Numpy .....), R Clouds: AWS EC2 RDBMS: MySQL VCS: GitHub LMS: Moodle Microcontrollers: Atmel, STM32, Arduino

AWS EC2, Electrical engineering, Electronics, Moodle, numerical methods, Probability theory, Discriminant analysis, Dispersion analysis, GraphLab, Python, Regression analysis, Deep Learnng, C++, R lang

PhD 5 учебных пособий по прикладной математике Конференции, семинары, вебинары по всему спектру IT Сертификаты семинаров Microsoft, Luxoft, PM 2013-2017 гг. Онлайн-курсы Прометеус, Stepik

Профессиональный рост. Адекватный менеджмент. Дружелюбный, командный коллектив. Возможность научной работы и участия в конференциях. Современная техника.


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