Dmitrii Smolin Email & Phone Number

Черногория

- Creating new and maintaining existing ETL processes- Designing infrastructure for machine learning processes- Developing libraries and tools for data analysts- Performing upgrades, migrations, and optimizations of softwareand infrastructure components- Establishing data integrity and quality control systems- Configuring and integrating with external services- Improving the work environment and internal team processes- Providing technical support for team membersExamples of projects:Developer Setup Improvements: Implemented automatic project setup on Airflowlocally using Docker Compose.1. Developed an easily extensible callback processing system based on Amazon SQSqueues. Integrated it with Twilio and Sendgrid services.2. On my own initiative, optimized a process involving multiple EMR clusters usingmultithreading. Reduced the process execution time from 7 hours to 2.5 hours, andconsequently reduced AWS resource usage costs.3. Optimized EMR cluster setup by updating the EMR version, switching to newer EC2instance types, and archiving all Python dependencies. Reduced cluster startuptime from 40 minutes to 10 minutes.4. Migrated a machine learning-based prediction process from a long-runningcluster to an Airflow project. Refactored the code, added integration tests for theinput data processing stage, additional logging and notifications, andimplemented the ability to run test models to compare results with the main model.

Соединенные Штаты Америки

- Development of internal and external APIs for B2B integrations- Writing integration and unit tests- Integration of partner services- Code refactoring- Conducting code reviewsExamples of projects:1. Developed the backend for the company's internal employee system (admininterface).2. Implemented the RBAC concept in the project using django-dry-rest-permissions.3. Developed functionality for company tariffs and operation commissions.

Moscow

- Backend development in Python- Development of web application APIs and internal services- Integration with services of other teams- Performing backend tasks on Golang- Code coverage by tests- Manual testing of features- Performing frontend tasks- Solving tickets, analyzing the causes of their occurrence, eliminating bugs- Conducting a code review- Participation in business grooming- Participation in grooming for the development of technical solutions and assessment of tasks- Conducting spikesExamples of projects:1.Integration of Domclick with the bank's internal service to optimize the process of removing encumbrances under loan contracts. My task was to create an opportunity for the company’s employee to get information about the availability of a mortgage through CRM.2.A personal account on the website was developed which enables employees of the State Authority to exchange information with employees of Domclick and solve any issues faster. This product reduces the customer requests’ processing time, decreases the number of repeated requests and customer complaints.Further this interaction was expanded with additional functionality. I supported the project implementation both on the back and at the front.3.My project: Implementation of CRM login by certificates to fulfill the security requirement, I offered interesting effective solutions for the implementation of this authorization method for the company’s service.4. Integration with the internal banking service for automatic mortgage ordering. The release was made in order to optimize processes, eliminate manual requests and reduce deadlines when ordering mortgages as part of the removal of encumbrances.5. Integration with the service for sending court requests. This release digitized most of the business process associated with the client's refusal to sign a duplicate mortgage and expanded the functionality available to the company’s employees.

Moscow

- Writing templates (Python, Jinja2) for converting data formats and stacking data into a database via API- Data analysis and presentation structures- Working with PostgreSQL DBMS: writing SQL queries, analyzing database schemas, suggestions for changing tables/fields- Writing tests in Python to check the operability of software products. Creating parsers for parsing binary files- Writing Ansible roles- Configuring systemd units- Configuring logging using rsyslog- Participation in the production of documentation on software products under development- Participation in the preparation of distributions for delivery