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Hi, I’m Rareş Stoica, a backend-focused software engineer specializing in Node.js and AWS. Over the last 4+ years I’ve built scalable APIs and optimized infrastructure for high-growth products, cutting processing times from minutes to milliseconds and delivering significant database speedups. I’m passionate about clean architecture, mentoring, and shipping meaningful features across AI/dev tools, gaming/entertainment, and climate tech. I enjoy collaborating with teams, leading onboarding, and turning complex requirements into robust, maintainable systems.…Hi, I’m Rareş Stoica, a backend-focused software engineer specializing in Node.js and AWS. Over the last 4+ years I’ve built scalable APIs and optimized infrastructure for high-growth products, cutting processing times from minutes to milliseconds and delivering significant database speedups. I’m passionate about clean architecture, mentoring, and shipping meaningful features across AI/dev tools, gaming/entertainment, and climate tech. I enjoy collaborating with teams, leading onboarding, and turning complex requirements into robust, maintainable systems.

Rareş Stoica

Full Stack Developer, Web Developer, Back-End Developer, +2

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Hi, I’m Rareş Stoica, a backend-focused software engineer specializing in Node.js and AWS. Over the last 4+ years I’ve built scalable APIs and optimized infrastructure for high-growth products, cutting processing times from minutes to milliseconds and delivering significant database speedups. I’m passionate about clean architecture, mentoring, and shipping meaningful features across AI/dev tools, gaming/entertainment, and climate tech. I enjoy collaborating with teams, leading onboarding, and turning complex requirements into robust, maintainable systems.…Hi, I’m Rareş Stoica, a backend-focused software engineer specializing in Node.js and AWS. Over the last 4+ years I’ve built scalable APIs and optimized infrastructure for high-growth products, cutting processing times from minutes to milliseconds and delivering significant database speedups. I’m passionate about clean architecture, mentoring, and shipping meaningful features across AI/dev tools, gaming/entertainment, and climate tech. I enjoy collaborating with teams, leading onboarding, and turning complex requirements into robust, maintainable systems.

Available to hire

Hi, I’m Rareş Stoica, a backend-focused software engineer specializing in Node.js and AWS. Over the last 4+ years I’ve built scalable APIs and optimized infrastructure for high-growth products, cutting processing times from minutes to milliseconds and delivering significant database speedups.

I’m passionate about clean architecture, mentoring, and shipping meaningful features across AI/dev tools, gaming/entertainment, and climate tech. I enjoy collaborating with teams, leading onboarding, and turning complex requirements into robust, maintainable systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Romanian, Moldavian, Moldovan

Fluent

Work Experience

Full Stack Engineer at The Sandbox / QED

January 1, 2021 - October 28, 2025

Optimized avatar import for ~3,000 files (~5MB each) via AWS S3 streaming & parallelism; reduced runtime from 30 min to 15 min. Refactored event-map queries (PostgreSQL) with joins and indexing, reducing response time from 1 min to 50 ms. Built avatar customization features (Vue.js, Three.js) with live previews and equipment presets. Mentored junior developers and led onboarding for import pipeline architecture and feature delivery.

Junior Backend Engineer at Hey Lady

January 1, 2022 - October 28, 2025

Integrated a new payment provider; migrated 100% of subscriptions with zero data loss. Implemented subscription lifecycle features (pause/cancel/renew) to improve retention and flexibility. Executed billing DB migration to enhance scalability and data integrity.