Sergey Stepanov Email & Phone Number

Yerevan, Armenia

Санкт-Петербург, Санкт-Петербург, Россия

- Created an MVP of a project which automatically generates a site plan of an industrial facility (locate buildings, pipes, and roads in a selected area). Explosion hazards and fire hazards of buildings and pipes were taken into account for computing optimal location and minimizing CAPital expenses(CAPEX).- Designed app architecture for simplifying the research process. The estimated time of adding a new computation method to an app was reduced from 2-3 days to stable 3-4 hours.- Fixed… Show more - Created an MVP of a project which automatically generates a site plan of an industrial facility (locate buildings, pipes, and roads in a selected area). Explosion hazards and fire hazards of buildings and pipes were taken into account for computing optimal location and minimizing CAPital expenses(CAPEX).- Designed app architecture for simplifying the research process. The estimated time of adding a new computation method to an app was reduced from 2-3 days to stable 3-4 hours.- Fixed all code conventions by tests(unit, functional, integration) and linters (mypy). - Created an opportunity for the research team to work independently from the development team.- Implemented web interface for simplifying computational data management using Vue.js framework.- Unified docker-compose files and Dockerfiles in the project using best practices.- Configured deployment of static and dynamic environments using Gitlab CI/CD. QA-engineer could deploy and stop the application test environment with one click in the Gitlab web interface without involving any developer. - Led a team of three developers. We implemented two different ways of automated site plan generation.- Coordinated software requirements with business analysts and project managers monthly.- Decomposed tasks and estimated time for implementation.- Trained a team of researchers in commercial development standards.- Used actual tech stack for team motivation.- Used Code Review practices.- Worked in Kanban methodology.- Transformed researchers team’s algorithms implementations to production-ready code(tests, code style).- Implemented raster and vector tile servers. The performance of displaying geo-data in a browser was increased 7x times.Tech stack: Python 3, Rust, PostgreSQL, SQLAlchemy Core, CI/CD, Docker, GraphQL, BDD, FastAPI, Flask, numpy, scipy, shapely, mapnik, Mapbox Vector Tile, nginx. Show less

Санкт-Петербург, Санкт-Петербург, Россия

- Participated in developing software intended for minimizing CAPital expenses(CAPEX) by optimization oil-and-gas site infrastructure.- Developed algorithms which compute linear objects alignment(Steiner tree problem on undirected graphs). Segregated algorithms into math packages. Implemented unit-tests for them. Documented algorithms in Confluence.- Did a research on comparison ways of oil gathering centers allocation on oil-and-gas site.- Analyzed business requirements and… Show more - Participated in developing software intended for minimizing CAPital expenses(CAPEX) by optimization oil-and-gas site infrastructure.- Developed algorithms which compute linear objects alignment(Steiner tree problem on undirected graphs). Segregated algorithms into math packages. Implemented unit-tests for them. Documented algorithms in Confluence.- Did a research on comparison ways of oil gathering centers allocation on oil-and-gas site.- Analyzed business requirements and developed business logic.- Configured CI/CD for application using docker, docker-compose and Gitlab CI/CD.- Applied modern ways for development and testing (CQRS, BDD).- Decomposed tasks and estimated time for completion(Jira). - Reviewed code of other team members.- Worked in Scrum methodology.- Designed database schema of an application.- Wrote unit-, functional- and UI-tests. (pytest | behave | selenium)- Lectured on python developer course at company’s school for university students.- Mentored 3 interns.Tech stack: Python 3, PostgreSQL, SQLAlchemy, CI/CD, Docker, REST, CQRS, BDD, SQLAlchemy, flask, numpy, scipy, shapely. Show less

Санкт-Петербург, Санкт-Петербург, Россия

Created MVP which optimizes linear objects alignment for network infrastructure design(roads, pipes, etc). Different types of terrain (swamp, forest, rivers, permafrost soils, restricted areas, etc) and existing infrastructure(roads, buildings, etc) were taken into account for computing optimal route. Potential investor signed a contract with our company to continue app development for the next 1.5 years. Tech stack: Python 3, PostgreSQL, REST, HTML, CSS, jQuery, SQLAlchemy, numpy… Show more Created MVP which optimizes linear objects alignment for network infrastructure design(roads, pipes, etc). Different types of terrain (swamp, forest, rivers, permafrost soils, restricted areas, etc) and existing infrastructure(roads, buildings, etc) were taken into account for computing optimal route. Potential investor signed a contract with our company to continue app development for the next 1.5 years. Tech stack: Python 3, PostgreSQL, REST, HTML, CSS, jQuery, SQLAlchemy, numpy, scipy, shapely, networkx, tornado. Show less

Санкт-Петербург, Россия

Did a research on finding shortest network between a set of points located on the Earth’s surface using digital elevation model (DEM).Tech stack: Python 3, numpy, scipy, shapely, networkx.

Bachelor'S Degree, Computer And Information Sciences

Master'S Degree, Computer Software Engineering