Oleg Abrazhaev

is available. ✅

Freiberuflich, Interim CTO, Oliver Schrott Kommunikation GmbH
Berlin, Germany

Fähigkeiten und Kenntnisse

TypeScript
Vue.js
Angular
SCSS
Node.js
JavaScript
SQL
MySQL
Git
OOP
CSS
Application domain
PostgreSQL
Java
Web Technologies
Forschung und Entwicklung
Docker
PHP
Symfony Frameworks
DDD
PostgreSQL Project
Amazon Web Services (AWS)
Leadership
independent
Team work
Problem Solving
Leadership skills
Technical Knowledge

Werdegang

Berufserfahrung von Oleg Abrazhaev

  • Current 2 years and 11 months, since Jul 2023

    Interim CTO

    Oliver Schrott Kommunikation GmbH

    Finished the AI chatbot and released it to the company website https://osk.de Conducted LLM research using Prompt engineering and Fine-tuning on OpenAI and LLM models such as LLaMA 2, Mistral, etc. Researched fine-tuning techniques with transformers, QLorA, and quantization. Built a topic reach analytics dashboard with the tech stack: typescript, Angular, NestJS, PostgreSQL, Docker.

  • 5 months, Mar 2023 - Jul 2023

    Senior Frontend Developer

    Hold My Code GmbH

    I was working as a Freelancer, remotely, via the Hold My Code agency, with the GROSSWEBER Groß, Weber & Partner team for a Keßler Real Estate Solutions GmbH project. Building front-end for a workplace management system. Using Vue.js 3, composition API, typescript, PrimeVue, Keycloak, SignalR, Pact JS, Jest, SCSS, and Docker.

  • 4 months, Mar 2023 - Jun 2023

    Senior Full Stack Engineer

    OSK Berlin

    I was working remotely part-time as a Freelancer, building the AI platform project and the AI Chatbot generator using the company data. Using the following technologies: BE: Node, Express, typescript, PostgreSQL, pgvector, open AI API, and Docker FE: Vue.js 3, composition API, typescript, Vuetify 3, SCSS

  • 3 months, Dec 2022 - Feb 2023

    Engineering Manager

    ottofeller

    This was a hands-on role, with up to 70% work on the codebase. Helping the team to achieve results. Working on a big US crypto start-up Worldcoin. Hands-on coding: TypeScript, NodeJS, GraphQL, Hasura, Next.js Infrastructure: AWS (AppSync, CDK, CloudFormation, Fargate, ECS), GitHub actions

  • 2 years and 1 month, Dec 2020 - Dec 2022

    Head of Engineering

    Lumiform
  • 5 months, Aug 2020 - Dec 2020

    Senior Frontend Developer

    Lumiform

    Finished developing the new front-end application. Successfully deployed and integrated into the existing tech infrastructure. Solved countless amounts of bugs and implemented a lot of FE, BE, and infrastructure improvements. Typescript, Javascript, Vue.js with composition API, Functional programming, fp-ts

  • 4 months, May 2020 - Aug 2020

    Frontend Team Leader

    AUTO1 Group

    React, Node, vanilla js, LESS Helping the team to reach their work goals. Communication with other departments. Gathering requirements and preparing specifications. Working closely with PM and Engineers.

  • 11 months, Jul 2019 - May 2020

    Frontend Tech Lead

    Customer Alliance

    Was working on hospitality reviews analytics, statistics, and aggregation. Customer digital journey planning. Introduced to the team and integrated into the dev process javascript testing (unit with Jest and e2e with Jest and Puppeteer) Later migrated the e2e solution from Behat to Cypress with integration to Jenkins CI build. Integrated TypeScript support with Vue.js into the project. Set up the infrastructure and introduced TS to the team workflow.

  • 1 year and 8 months, Dec 2017 - Jul 2019

    Senior Software Engineer

    Customer Alliance

    Was working on hospitality reviews analytics, statistics, and aggregation. Customer digital journey planning. Implemented new product features. Worked closely with PM, QA, and team members. Improved existing functionality and infrastructure. Used the following tech stack for my daily work: JS: Webpack, ES6, VueJS 2.5+, jQuery and libs (underscore, etc) Markup: SCSS, Twig, BEM, handlebars PHP: php7.1+, Symfony 3+, Doctrine 2+ Scala: 2.11.8 + MySQL, Docker, RabbitMQ, etc. Provided a lot of Code Reviews.

  • 3 years and 1 month, Jan 2016 - Jan 2019

    Software Developer / Project manager / Team-lead

    bemaster.market

    I was leading a remote team of 3-5 devs (it was changing over time) in an e-commerce start-up. Was using Skype for communication and Trello for tasks management. The project was started by me, and then I have transitioned to PM/Consultant role. I was in this role until the project reached the release. Was working in my free time on weekends. Built with Java Spring framework, PostgreSQL, Docker on back-end and with jquery, Angular, React, scss, bootstrap on front-end.

  • 10 months, Mar 2017 - Dec 2017

    Senior PHP developer

    smart-Q Softwaresysteme GmbH

    Senior PHP Developer, Web development. Work in an office. - Developing projects using Zend Framework 3 and Symfony 3. Have used DDD and- Hexagonal architecture approach to design an architecture (SOLID, Clean code, etc). - Developing front-end with use of bootstrap, js, jquery and jQuery ui for admin back-end. Work in collaboration with front-end and mobile devs. - Have been made some push commits to open source GitHub repos during the work

  • 1 year and 9 months, May 2015 - Jan 2017

    Senior PHP Developer

    Panel100.com (advertising) / Mjutools.com (advertising tools)

    Senior PHP Developer, Web development. Work remotely from home.

  • 3 years and 1 month, May 2012 - May 2015

    Senior PHP Developer / Team Lead

    RAZLET.RU (Sale of air tickets company)

    Started as Middle PHP Developer for 1 year. Then Senior PHP Developer / Team Lead, Web development. Work in the office.

  • 7 months, Nov 2011 - May 2012

    PHP Developer. Web development (PHP, MySQL).

    OOO RIGHTSIDE (MAXIMA Internet Service Provider)

    PHP Developer. Web development (PHP, MySQL).

  • 10 months, Feb 2011 - Nov 2011

    Computer engineer.

    Device (Computer workshop)

    Computer repair, restoration, installation of operating systems, cleaning from viruses. Installing and configuring software and enterprise networks. Web development.

Ausbildung von Oleg Abrazhaev

  • 4 years and 11 months, Sep 2005 - Jul 2010

    Computer Science

    Odessa National I.I. Mechnikov University

    Bachelor and Specialist diploma in Computer science. Specialist of computer systems and networks.

Sprachen

  • Russian

    C2 (Verhandlungssicher / Muttersprachlich)

  • English

    C1 (Fließend)

  • German

    A1-A2 (Grundkenntnisse)

  • Ukrainian

    B1-B2 (Gute Kenntnisse)

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