Open to opportunities

Анастасия Махонина

@0003226

Backend engineer with 6+ years building Ruby on Rails analytics, REST APIs, and data-intensive platforms across fintech and marketplaces.

United States

Message

What I'm looking for

I’m looking to own backend and data pipelines end to end—optimizing performance, building well-tested REST APIs, and collaborating closely with product, frontend, and analytics teams in fast-paced environments.

I’m a Backend Engineer with 6+ years of experience designing, building, and scaling Ruby on Rails applications, REST APIs, backend services, and data-intensive platforms. I’m especially driven by strong ownership, performance-focused engineering, clear documentation, and high test coverage.

Most recently, I built and scaled a Ruby on Rails analytics platform from scratch for marketplace sellers—engineering end-to-end data pipelines, defining core reporting architecture, and creating analytical SQL queries in PostgreSQL and ClickHouse. I optimized response times from 2–3 seconds to under 300 ms, powering 12+ interactive dashboards and drill-down reporting.

Before that, I delivered operations and mobile API backends across 55 kitchens, expanded REST APIs for iOS/Android, and enhanced Go services powering Firebase marketing push notifications to 100K+ users. Earlier, I led infrastructure-focused work including a Go-based LDAP management service and REST API redesigns, plus monitoring and internal analytics tools to support multiple engineering teams.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

ADV Group

Dec 2023 - Present (2 years 7 months)

Built and scaled a Ruby on Rails marketplace analytics platform for business intelligence, reporting, and performance analytics. Engineered historical data pipelines, optimized PostgreSQL/ClickHouse queries, implemented Sidekiq ETL workflows, and delivered REST APIs with OpenAPI/Swagger documentation.

Ruby on Rails PostgreSQL Clickhouse SQL SQL Optimization Analytical SQL Data Pipelines ETL Sidekiq Whenever REST APIs RSpec Capistrano Background Jobs

Full-Stack Software Engineer

Local Kitchen

Dec 2021 - Nov 2023 (1 year 11 months)

Developed and operated a Ruby on Rails platform for operations across multiple kitchens, supporting mobile APIs and internal business tools. Worked on OTP authentication reliability, built REST APIs and React-based admin interfaces, improved Kafka-to-ClickHouse analytics with Go services, and supported production services on Kubernetes.

Ruby on Rails api rest React Go Firebase Kafka Clickhouse PostgreSQL Kubernetes Incident Response Production Support

Software Engineer

Rambler

Mar 2021 - Nov 2021 (8 months)

Delivered internal infrastructure services and engineering tools for access management, monitoring, reporting, and operational workflows. Maintained a Go-based LDAP management service, redesigned its REST API, contributed to automated testing improvements, and built monitoring and analytics tools using Stimulus.js, D3.js, and GitLab CI/CD.

Go LDAP REST APIs Monitoring D3.Js Gitlab CI Jira On Call Incident Response BASH

Software Engineer

Balance Platform

Nov 2019 - Feb 2021 (1 year 3 months)

Implemented backend functionality for a Ruby on Rails fintech platform covering loan origination, credit decision workflows, and third-party verification/authentication services. Built RabbitMQ-based async messaging integrations, supported transactional PostgreSQL workflows, handled on-call incident response, and expanded RSpec test coverage for business-critical logic.

Ruby on Rails RabbitMQ PostgreSQL On Call Incident Response RSpec

Junior Full-Stack Software Engineer

Krypton

Apr 2019 - Oct 2019 (6 months)

Modernized a legacy Ruby on Rails web application across backend and frontend development. Refactored the Rails codebase, implemented REST APIs for internal workflows and customer-facing features, rebuilt UI components with Stimulus.js, and troubleshot production issues to support deployment stability.

Ruby on Rails REST APIs Backend Development Production Troubleshooting