Dmitriy Krumin Email & Phone Number

Москва, Россия

The company is engaged in comprehensive DevOps support of infrastructure and digital products.My personal tasks were development of the backend and partially frontend part for a new application of new company direction.- Decomposition of tasks, transformation of business wishes into requirements for implementation- Receiving data from other services using a message broker on the Nats bus. Using Interactors- Implementation of the frontend part using ViewComponents- Setting up authorization and permissions over the network using Cancan- Testing components, models, requests and other service objects using Rspec, Capibara

The Etnamed company develops and promotes the concept of a medical concierge on the Russian market. A direction has emerged to create a lifestyle application for health and healthy lifestyle, etc. Involved in backend implementation and database architecture.A lot of interesting things were implemented; briefly:- Microservice architecture, interoperability, kafka, karafka)- Fintech solutions for work, which are kind of not worth writing about- Event-based notification generation, a service for sending push notifications and more- Api on graphql using Hasura engine for microservices- Asynchronous work, postponed tasks- Architectural solutions, system design, training colleagues, code reviews, code quality, tests- Python, trained neural networks for Stable Diffusion content generation, SAM inpainting, pre-training networks using Dreambooth algorithms to generate scenes based on prompts

Москва, Москва, Россия

• Worked as Senior Ruby on Rails developer on several projects with different customer requirements. • Conducted those interviews within the company and for new hires.• Had mentoring experienceProjects:NDA — 07.2021 – 12.2021Our customer is one of the largest universal financial institutions in Russia. The project consists in developing an accounting system, organizing, ordering and storing large volumes of information for its further processing by users, compiling reports, etc.Responsibilities:• Developed new features and components• Utilized good design practices, code reuse and wrote efficient source code• Identified and addressed performance bottlenecks• Devised possible solutions to anticipated problems • Wrote testsTechnologies and tools:Ruby, Ruby on Rails, Sidekiq, Sinatra, JS, CoffeeScript, React, MongoDB, PostgreSQL, Redis, Slim, Rspec~~~~~~~Getsafe — 01.2022 – 03.2022Getsafe is a digital insurance company creating a better insurance experience for everyone that is easy, flexible, and enjoyable. With its strong technological backbone, the company offers liability, contents, and car insurance in Germany and contents insurance in the UK. Getsafe replaces complexity and manual paperwork with smart bots and automation, allowing customers to file claims or change their coverage in real-time with just a few clicks.Responsibilities:• Developing new features and components• Utilizing good design practices, code reuse and writing efficient source code • Identifying and addressing performance bottlenecks• Devising possible solutions to anticipated problems• Writing unit testsTechnologies and tools:Ruby, Ruby on Rails, PostgreSQL, Docker, RSpec, Git, Heroku~~~~~~~Idion — 05.2022 – 06.2022• Creation from scratch of a site prototype for accounting by doctors of patients, with an admin panel. • Architecture and development of the division of the monolith into several servicesTechnologies and tools:Ruby, Ruby on Rails, PostgreSQL, Redis, Git

Москва, Москва, Россия

• Fulfillment of ARM duties on their Coordinates• Understanding and disseminating company values ​​and goals in your Coordinates pool• Participation in the assessment of an employee of your pool• Participate in the Individual Development Plan of their Coordinates• Work to reduce and prevent the growth of Risk of leaving in their coordinates.• Timely identification and solution of employee problems on the project with PM, DM, DD.• Identify ARM candidates among your Coordinates and participate in their preparation for this role.• Coordination of the work of their ARMs.

Москва, Москва, Россия

• Curation of coordinates• Onboarding new coordinates to a department• Participation in project search for coordinates• Conducting one-to-one with your coordinates• Preparing materials for assessment for your coordinates• Compiling an IPR for your coordinates

Москва, Москва, Россия

E-commerce and shop of kitchen supplies and other things. It helps various partners upload their product listings for sale through our marketplace. Similar to Yandex Market. Delivery and user support is carried out by a logistics company.• Developed application from scratch• Developed project architecture for business• Optimized usability of the back-end and front-end• Coordinated API with front-end developers• Developed loyalty program with promotions, coupons and codes • Deployed application• Set up and connected payment systems• Wrote unit tests• Created technical documentation

A large culinary portal with a social network edimdoma.ru. There are many author's and original recipes with good filtering, search, rating. Users can ask anyone about anything in cooking and get an answer.• Developed application from scratch• Updated apps to a newer version of Ruby on Rails• Developed new and finalized the current modules of the site• Optimized usability of the back-end and front-end• Identified bottlenecks at high loads• Developed and wrote JS-scripts, Ajax-requests• Deployed application• Developed API for front-end JS modules and applications, Android and iOSapplications• Wrote unit tests• Created technical documentation

Москва, Москва, Россия

Single sign-on system for web, mobile and JS applications using CAS protocol with JWT. Users can authenticate using email, phone, or popular social media.• Developed application from scratch• Developed project architecture, defined user data protection protocols • Optimized usability of the back-end front-end• Developed and wrote JS scripts• Deployed application• Created technical documentation

Москва, Москва, Россия

Own service for sending custom letters. Thanks to the service, editors can create mail templates using a convenient editor, create an HTML version of mail, plan future sending emails• Developed application from scratch• Developed project architecture for business• Optimized usability of the back-end and front-end• Optimized sending letters from a mailing list with 300-400K users • Deployed application• Delayed execution of sending mail

Москва, Москва, Россия

An application for Google Assistant with the ability to find recipes on edimdoma.ru, ask about it and the application will help users prepare a recipe by reading all the stages of preparation in order.• Developed application from scratch• Developed project architecture• Developed webhook for the correct answer to user questions• Deployed application

Москва, Россия

Cooking studio web app with booking and purchase options for cooking classes.Responsibilities• Developed application from scratch• Developed project architecture for business• Optimized usability of the back-end front-end• Developed and wrote JS-scripts, Ajax-requests • Deployed application• Set up and connected payment systems• Delayed task completion• Wrote unit tests• Created technical documentation