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Hi, I’m Andrei Popescu, a Senior Software Engineer with 8+ years of experience building high-scale SaaS, ERP, and e-commerce platforms. I lead full-stack initiatives using React, Vue.js, and Next.js for frontend systems, and Node.js and Python for backend services. I’m focused on delivering secure, maintainable, and scalable software while aligning engineering work with business goals. I drive growth by integrating AI automation, optimizing cloud infrastructure, and mentoring teams. I’ve architected multi-tenant platforms, built AI-powered document processing, and created real-time analytics dashboards that drive adoption and ROI.…Hi, I’m Andrei Popescu, a Senior Software Engineer with 8+ years of experience building high-scale SaaS, ERP, and e-commerce platforms. I lead full-stack initiatives using React, Vue.js, and Next.js for frontend systems, and Node.js and Python for backend services. I’m focused on delivering secure, maintainable, and scalable software while aligning engineering work with business goals. I drive growth by integrating AI automation, optimizing cloud infrastructure, and mentoring teams. I’ve architected multi-tenant platforms, built AI-powered document processing, and created real-time analytics dashboards that drive adoption and ROI.

Andrei Popescu

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

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Hi, I’m Andrei Popescu, a Senior Software Engineer with 8+ years of experience building high-scale SaaS, ERP, and e-commerce platforms. I lead full-stack initiatives using React, Vue.js, and Next.js for frontend systems, and Node.js and Python for backend services. I’m focused on delivering secure, maintainable, and scalable software while aligning engineering work with business goals. I drive growth by integrating AI automation, optimizing cloud infrastructure, and mentoring teams. I’ve architected multi-tenant platforms, built AI-powered document processing, and created real-time analytics dashboards that drive adoption and ROI.…Hi, I’m Andrei Popescu, a Senior Software Engineer with 8+ years of experience building high-scale SaaS, ERP, and e-commerce platforms. I lead full-stack initiatives using React, Vue.js, and Next.js for frontend systems, and Node.js and Python for backend services. I’m focused on delivering secure, maintainable, and scalable software while aligning engineering work with business goals. I drive growth by integrating AI automation, optimizing cloud infrastructure, and mentoring teams. I’ve architected multi-tenant platforms, built AI-powered document processing, and created real-time analytics dashboards that drive adoption and ROI.

Available to hire

Hi, I’m Andrei Popescu, a Senior Software Engineer with 8+ years of experience building high-scale SaaS, ERP, and e-commerce platforms. I lead full-stack initiatives using React, Vue.js, and Next.js for frontend systems, and Node.js and Python for backend services. I’m focused on delivering secure, maintainable, and scalable software while aligning engineering work with business goals.

I drive growth by integrating AI automation, optimizing cloud infrastructure, and mentoring teams. I’ve architected multi-tenant platforms, built AI-powered document processing, and created real-time analytics dashboards that drive adoption and ROI.

Skills

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Intermediate

Language

English

Advanced

Work Experience

Senior Software Engineer at Candis

September 1, 2021 - November 20, 2025

Architected and led the development of a multi-tenant SaaS platform using React and Node.js, scaling to serve 250+ business clients and process over $5M in annual transactions. Engineered an AI-powered document processing system with Python and LangChain that streamlined 35% of invoice data entry, saving an estimated 1,000+ person-hours annually. Designed a microservices architecture on AWS (Kubernetes, Docker), reducing p95 API latency by 35% and enabling the team to deploy features 3x more frequently. Built a real-time analytics dashboard with Next.js, which became the primary insights tool for 90% of enterprise clients and increased user engagement by 25%. Automated infrastructure provisioning with Terraform, managing 50+ cloud resources and reducing environment setup time from 3 days to 30 minutes. Optimized PostgreSQL query performance and implemented a Redis caching layer, cutting average response time for key reports from 4s to 800ms. Led the migration of a legacy ERP module to

Software Engineer at PriceVent

September 1, 2021 - September 1, 2021

Developed and scaled core platform features using Vue.js and Django, supporting a user base that grew from 10,000 to 50,000+ and handling a sustained load of 2M+ API requests/day. Architected a Python and Scikit-learn pricing intelligence engine that analyzed 5M+ competitor data points daily, driving an 18% increase in sales conversions and $2.5M in incremental annual revenue. Led the decomposition of a monolith, designing 12+ Node.js microservices for order management that decreased system latency by 300ms and improved system uptime to 99.95%. Spearheaded the containerization of the application with Docker on AWS ECS, which reduced server costs by 25% and cut deployment-related outages to zero. Revamped the platform's authentication system using JWT, resolving 4 critical security vulnerabilities and protecting 50,000+ user accounts. Introduced a Cypress testing framework that boosted end-to-end test coverage from 30% to 80%, catching 150+ regression bugs before production in the first

Full Stack Developer at SocialBee

February 1, 2018 - February 1, 2018

Developed user-facing features with React and Express.js for a social media SaaS product that managed 5M+ posts for 15,000+ active customers. Built a real-time notification system using WebSockets and Redis, delivering messages to the client-side in under 100ms and improving user engagement metrics by 18%. Optimized critical database queries and implemented server-side rendering, which cut initial page load time by 40% (from 3s to 1.8s). Integrated 10+ third-party social media APIs, expanding the platform's serviceable market and contributing to a 30% increase in new user sign-ups. Orchestrated social media posting workflows with Celery, enabling the scheduling of 1M+ background tasks per month with 99.9% reliability. Wrote 300+ unit and integration tests with Jest and Mocha, increasing code coverage from 20% to 75% and reducing bug-fix cycles by 50%.