← Back to list
senior
Registration: 02.05.2025

Aleksei Kiselev

Specialization: Ruby on Rails Engineer
— 7+ years in Ruby on Rails application development. — Experience designing and building APIs. — Experience in good code design for speeding up development and extending systems. — Experience in Agile (Scrum, Kanban) methodologies. — Excellent creativity and solutions orientations. — Excellent problem-solving and troubleshooting abilities. — Deep experience in working in international teams (15 years). — Experience in team leadership (7 years). — Knowledge of SS7 products design and programming.
Agile C++ CSS Elasticsearch HTML http JavaScript JSON kanban MySQL nosql RabbitMQ React Redis REST rest api rspec Ruby ruby on rails Scrum SQL Zabbix Grafana Sidekiq TCP IP Kafka
— 7+ years in Ruby on Rails application development. — Experience designing and building APIs. — Experience in good code design for speeding up development and extending systems. — Experience in Agile (Scrum, Kanban) methodologies. — Excellent creativity and solutions orientations. — Excellent problem-solving and troubleshooting abilities. — Deep experience in working in international teams (15 years). — Experience in team leadership (7 years). — Knowledge of SS7 products design and programming.
Agile C++ CSS Elasticsearch HTML http JavaScript JSON kanban MySQL nosql RabbitMQ React Redis REST rest api rspec Ruby ruby on rails Scrum SQL Zabbix Grafana Sidekiq TCP IP Kafka

Skills

Ruby on Rails
Postgres
RSpec
Sidekiq
REST API
React
JavaScript
HTML
CSS
HTTP
JSON
REST
TCP/IP
SQL
MySQL
NoSQL
Redis
Elasticsearch
Kafka
RabbitMQ
Zabbix
Grafana
Sentry
Agile
Scrum
Kanban
C++

Work experience

Senior Ruby on Rails Engineer
since 01.2023 - Till the present day |Synergy University
Ruby 2.7, Rails 3.1
● Developing new features on backend and frontend (React) for Synergy CRM. ● Migrated monolithic CRM to microservices, reducing server costs by 30% and improving deployment speed. ● Optimized Elasticsearch queries, cutting search response time from 2s to 200ms. ● Integrated 10+ third-party services (WhatsApp, VKontakte, SMS gateways), expanding platform functionality.
Ruby on Rails Developer
2018 - 2022 |Orion Innovation (formerly MERA), StackSports project
Ruby on Rails, RSpec, Sidekiq, REST API, React, JavaScript, HTML, CSS
● Developing new features on backend and frontend (React) for StackSports social network. ● Developing REST API services. ● Integration with Stripe payment service. ● Designs, codes, verifies, tests, documents, amends, and refactors complex programs/scripts and integration software services.
Software Developer
2015 - 2018 |Zeep HK
Python, Zabbix, Grafana
● Troubleshooting and maintenance of installed SS7 based systems for mobile operators. ● Developing Python monitoring scripts (Zabbix/Grafana).
Software Developer
2008 - 2018 |Orion Innovation (formerly MERA)
C++, Technical Support
● Developing of SS7 solutions in C++, SS7 network configuration and SS7 product installation/integration, 24/7 on-call signalling support.

Educational background

Engineeri (Doctor of Science)
2004 - 2012
Nizhny Novgorod State Technical University

Languages

RussianNativeEnglishUpper Intermediate
AgileC++CSSElasticsearchHTMLhttpJavaScriptJSONkanbanMySQLnosqlRabbitMQRedisRESTrest apirspecRubyruby on railsScrumSQLZabbixGrafanaSidekiqTCP IPKafka