Sergei Mostachev

Full Stack Developer

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Smolensk, Russian Federation

Experience

Apr 2021 - Present
4 years 10 months
United States

Full Stack Developer

Front Desk Helpers

  • Development and support of web applications.
  • Integration of services into CRM.
  • Outstaff.
Apr 2020 - Jun 2021
1 year 3 months
Moscow, Russian Federation

CIO

SUWORLD

  • Developed SuWorld marketplace platform (online store, referral program, supplier website).
  • Managed entire technical side of the ecommerce product including development, testing, and technical support processes.
  • Led product development from scratch.
  • Managed development teams (internal and two external teams).
  • Recruited personnel, handled payroll formation and control.
  • Coordinated budgets and financial reporting.
  • Set and monitored task execution; analyzed and decomposed business requirements into developer tasks; managed sprints.
  • Interacted with contractors on external products.
  • Delivered marketplace with sales of goods and services, and application exchange features.
  • Oversaw partner offices, supplier offices, administrative panels, and mobile application.
  • Used technologies: MongoDB, Node.js, Moleculer, TypeScript, GraphQL, React, Vue, REST API, Swagger.
  • Employed DevOps tools: Docker, Kubernetes, GitLab.
  • Utilized communication tools: Slack, Zoom.
  • Used task trackers: Jira, Trello.
  • Maintained documentation in Confluence.
Jun 2018 - Apr 2020
1 year 11 months
Moscow, Russian Federation

Senior Web Programmer

Information technology and knowledge

Jan 2013 - Jun 2018
5 years 6 months
Russian Federation

Full Stack developer

Princip Company

Summary

FullStack Developer and Bitrix24 Solutions Architect with 15+ years of experience.

I specialize in deep Bitrix24 customization and CRM automation.

I also integrate Bitrix24 with any third-party system: 1C, Parus, government services (incl. U.S. APIs), SMS/voice providers, WhatsApp, REST/GraphQL/SOAP APIs, and other CRMs.

Currently, I work full-time with a U.S. company (FrontDesk Helpers CO), handling CRM and telephony architecture.

In parallel, I support ongoing Russian projects (90+ hours/month) and take on freelance Bitrix24 automation work.

Open to: consulting, automation projects, CRM/telephony integrations, and long-term Bitrix24-based development.

Skills

  • Web Development
  • Crm
  • Web Project Management
  • Custom Modules And Components (Cloud And On-premise)
  • Telephony Integrations: Asterisk, Ari, Ami
  • Asynchronous Tasks With Rabbitmq
  • Business Processes, Crm Entities, Bots, And Triggers
  • Analytics With Bitrix Bi (Superset), Power Bi, And Looker Studio
  • Integration Of Bitrix24 With Third-party Systems: 1c, Parus, Government Services (Incl. U.s. Apis), Sms/voice Providers, Whatsapp, Rest/graphql/soap Apis, And Other Crms
  • Tech Stack: Php 8.2, Bitrix D7, Eloquent Orm, Rabbitmq, Vue.js, Node.js, Mysql, Postgresql, Docker, Supervisor

Languages

Russian
Native
English
Advanced

Education

Oct 2008 - Jun 2013

Smolensk Industrial-Economic College

Senior Technician · Computer and Automated Systems Software · Smolensk, Russian Federation

Certifications & licenses

1C-Bitrix

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