I’m Cosmin Gagea, a full-stack software engineer focused on building production-grade end-to-end applications, including applied AI systems. I enjoy owning architecture end-to-end—from backend services and APIs to frontend delivery—while ensuring reliability, observability, and maintainability in real deployments. Over the last years I’ve led and shipped platforms in regulated and high-stakes environments (like healthcare), as well as customer-facing products such as a voice-first hotel front desk. I work with Python, TypeScript/Next.js, and Rust, and I like combining event-driven systems with applied AI (RAG, LLM agents, vision, and real-time capabilities) to deliver practical outcomes.…

Cosmin Gagea

I’m Cosmin Gagea, a full-stack software engineer focused on building production-grade end-to-end applications, including applied AI systems. I enjoy owning architecture end-to-end—from backend services and APIs to frontend delivery—while ensuring reliability, observability, and maintainability in real deployments. Over the last years I’ve led and shipped platforms in regulated and high-stakes environments (like healthcare), as well as customer-facing products such as a voice-first hotel front desk. I work with Python, TypeScript/Next.js, and Rust, and I like combining event-driven systems with applied AI (RAG, LLM agents, vision, and real-time capabilities) to deliver practical outcomes.…

Available to hire

I’m Cosmin Gagea, a full-stack software engineer focused on building production-grade end-to-end applications, including applied AI systems. I enjoy owning architecture end-to-end—from backend services and APIs to frontend delivery—while ensuring reliability, observability, and maintainability in real deployments.

Over the last years I’ve led and shipped platforms in regulated and high-stakes environments (like healthcare), as well as customer-facing products such as a voice-first hotel front desk. I work with Python, TypeScript/Next.js, and Rust, and I like combining event-driven systems with applied AI (RAG, LLM agents, vision, and real-time capabilities) to deliver practical outcomes.

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Experience Level

Expert
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Expert
Intermediate
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Language

Work Experience

Software Engineer & Tech Lead at Romflex Sistem
February 1, 2026 - Present
Led technical delivery for a team of 4–5 engineers, including architecture, code reviews, engineering practices, and stakeholder coordination. Designed and built a hospital radiation-dose monitoring platform (Python, Next.js, Rust) that centralizes patient examination data, calculates radiation doses and cumulative exposure, tracks dosimeter readings for staff, monitors imaging equipment status, and produces regulatory reports. Built a Rust DICOM ingestion gateway (Tokio, dicom-rs, RabbitMQ, MinIO, PostgreSQL) as an on-prem C-STORE SCP with TLS and allowlists, streaming studies through an event-driven pipeline with at-least-once delivery, idempotent upserts, circuit breakers, dead-letter quarantine, and Prometheus/Grafana observability. Deployed per hospital site with concurrent feeding into a central platform over mTLS, including CT dose parsing from RDSR and multiple vendor encodings. Also built a voice-first hotel AI front desk (Rust/Axum, PostgreSQL, React) with kiosk/phone flows
Software Engineer at Lawren.AI
November 1, 2024 - February 28, 2026
Built an end-to-end legal AI platform using source-cited RAG over 18,000+ Romanian legal documents, spanning ingestion, backend services, and frontend integration. Designed hybrid retrieval with version-aware citations and implemented quality evaluation using golden sets and regression checks. Implemented real-time services, background processing, and caching using Rust, PostgreSQL, Redis, Qdrant, and S3-compatible storage.
Web Developer Intern at IFIN-HH
June 1, 2024 - August 31, 2024
Developed two web-based scientific tools for nuclear-physics workflows, translating mathematical models into software. Automated document parsing and OCR, and helped validate computational results with researchers.

Education

M.Sc. Information and Computer Systems Engineering at Politehnica University of Bucharest – ETTI
October 1, 2026 - January 1, 2028
B.Sc. Computer Science / Software Engineering at Politehnica University of Bucharest – Faculty of Electronics, Telecommunications & IT (ETTI)
September 1, 2022 - June 30, 2026
M.Sc. Information and Computer Systems Engineering at Politehnica University of Bucharest – ETTI (expected graduation 2028)
October 1, 2026 - January 1, 2028
B.Sc. Computer Science / Software Engineering at Politehnica University of Bucharest – Faculty of Electronics, Telecommunications & IT (ETTI)
September 1, 2022 - June 30, 2026

Qualifications

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Industry Experience

Healthcare, Travel & Hospitality, Government, Software & Internet, Professional Services