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Raluca Badoi

@ralucabadoi

Ruby on Rails engineer and technical co-founder at Binary Dreams who built AI-powered developer tools with RAG and MCP.

At Binary Dreams (tng.sh), I built an AI-powered developer tool from the ground up, combining a Ruby gem, a Rust-based code analysis engine, and Rails API integrations. I designed secure, stateless data processing and AI infrastructure with multi-model LLM routing, context management, and MCP integrations.

At Shopify, I contributed to the App Platform and App Versioning, including multi-environment setups and dynamic API scopes for safer releases and instant rollbacks. Across Shopify and earlier roles at FinLink GmbH and Marley Spoon AG, I worked on distributed and event-driven systems, secure authorization, developer tools, and scalable Rails applications.

Experience

Work history, roles, and key accomplishments

Technical Co-Founder

Binary Dreams

Sep 2025 - Sep 2026 (1 year)

Built the product from the ground up across Ruby, Rust, Python, and JavaScript, designing the backend platform and AI infrastructure. Led product strategy and customer discovery through demos, interviews, and analytics.

Ruby Rust Python JavaScript Ruby on Rails ETL SSO MCP LLM Analytics Product Strategy

Software Engineer

Shopify GmbH

Mar 2022 - Aug 2025 (3 years 5 months)

Major contributor to the App Platform and driver of Shopify's App Versioning, designing multi-environment setups and dynamic API scopes. Mentored engineers, established engineering standards, and optimized backend scalability and observability.

Ruby Ruby on Rails React TypeScript GraphQL MySQL Kafka RSpec Minitest Jest Datadog Grafana Bugsnag CI CD Observability Mentorship

Software Engineer

FinLink GmbH

Dec 2020 - Mar 2022 (1 year 3 months)

Led integration with Germany's largest commercial bank, architecting service-oriented and event-driven systems. Designed secure authentication and authorization systems, enforced GDPR compliance, and founded a company-wide mentorship program.

Ruby Ruby on Rails AngularJS SOAP REST Pundit RSpec GDPR Event Driven Architecture Mentorship

Software Engineer

HeyJobs GmbH

Jun 2019 - Nov 2020 (1 year 5 months)

Managed all stages of small- and medium-sized projects, providing technical leadership for B2B products. Reduced CircleCI build time by ~50% and increased quality match of jobs and talents by 23%.

Ruby on Rails REST APIs CircleCi GDPR Code Review Training

Software Engineer

Marley Spoon AG

Jun 2016 - May 2019 (2 years 11 months)

Designed and maintained web application architecture, building and scaling back-end services. Envisioned and built menu management and recipe builder system, and architected distributed, event-driven systems using Kafka.

Ruby Ruby on Rails Kafka Microservices Test Driven Development Pair Programming Legacy Code Refactoring

Software Engineer

DaWanda GmbH

Feb 2016 - Apr 2016 (2 months)

Maintained and developed web-based applications with high customer visibility, collaborating with cross-functional teams. Wrote, tested, and documented RESTful API endpoints and improved page-load speed by 1.5%.

Ruby REST APIs A B Testing Performance Optimization

Software Developer Intern

Rails Girls Summer of Code

Jul 2015 - Oct 2015 (3 months)

Participated in an open source project (OSEM), adding new features in comments notifications and pages. Gained knowledge of software development lifecycle and technology proficiency in Rails, TDD, and JavaScript.

Ruby on Rails Test Driven Development JavaScript HAML CSS SQL Database Migration