Melissa Merve Abdula
Full‑Stack Engineer · AI Engineer
5+ years shipping production systems across AI platforms, RAG pipelines, and full-stack applications.
Projects
A selection of recent work
Multi-Agent RAG Platform with MCP capabilities
2025Built a 10+ agent AI system in production: RAG chatbot, NL-to-SQL over MS SQL Server, and semantic search across 10,000+ documents. Used daily by enterprise clients.
Romanian Tax Compliance SaaS
2024–2025Full-stack tax compliance SaaS built from scratch , e-invoicing (UBL XML), payroll, VAT journals, and AES-256-GCM + WebAuthn security.
US Depo & Case Smart
2024–2025Real-time deposition processing platform: Rust backend handling simultaneous legal streams, Elm frontend for US legal teams, deployed on AWS.
HSI Healthcare Claims & Document Management
2023–2024Sole engineer , designed and shipped a full healthcare claims platform end-to-end, from data modelling to AWS infrastructure.
Self-Service Cloud Deployment Platform
2021–2023Self-service deployment dashboard that eliminated manual DevOps bottlenecks , GitOps CI/CD, NATS event monitoring, and Stripe billing across microservices.
psiholog-cernat-lorena.com
2024Professional website for a licensed psychologist , services presentation, SEO optimisation, and appointment contact flow.
ocup.ro , Metal Packaging
2024Product catalog website for a Romanian metal packaging manufacturer , aluminium cans, jars, and lids.
Securing Web Applications , Multi-Layer Approach
2023Hardened a full-stack web app at every layer , threat modeling, RBAC, PostgreSQL row-level security, and container security. Grade: 10/10.
3D Virtual Fitness Assistant
20213D virtual trainer built in Godot with motion capture (Python/OpenCV), exercise routines, and real-time form feedback. Grade: 9.40/10.
Experience
Highlights from recent roles
AI Engineer & Full-Stack Developer
Harris Computer · Constanța, Romania · 2025–Present
LangChainFastAPIpgvectorNext.jsDockerArgoCDRedis- Architected a production multi-agent AI platform with 10+ specialized agents (intent classification, SQL generation, query refinement, result fusion, OCR ingestion), deployed and used daily by enterprise clients.
- Built semantic search over 10,000+ documents using pgvector, cutting query resolution to under 1 second and eliminating manual document retrieval entirely.
- Engineered a natural language-to-SQL engine over MS SQL Server with Redis caching, JWT authentication, and rate limiting, delivered to production via ArgoCD.
AI & Databases Lab Assistant
Ovidius University of Constanța · Constanța, Romania · 2025–Present
PostgreSQLOracleLLMsRAGPineconeChromapgvector- Designs and delivers the full AI lab curriculum across multiple student classes, covering LLMs, RAG pipelines, vector embeddings, prompt engineering, and vector databases (Chroma, Pinecone).
- Teaches the Databases lab in PostgreSQL and Oracle, focusing on schema design, query optimization, and performance tuning.
Full-Stack Developer
Romanian Tax Compliance SaaS · Romania · 2024–2025
ReactNestJSPostgreSQLAES-256-GCMWebAuthnUBL XML- Built a full-featured tax compliance SaaS from scratch, automating e-invoicing (UBL XML), payroll calculations, VAT journals, and statutory tax reporting across multiple legal entity types.
- Secured sensitive financial data with AES-256-GCM encryption at rest and WebAuthn passkey authentication, and automated migration from legacy accounting systems.
Full-Stack Developer
US Depo & Case Smart · Remote (US) · 2024–2025
ElmRustAWS- Led frontend development in Elm for a litigation support platform, enabling document intake, case tracking, and transcription review for US legal teams.
- Engineered a Rust backend processing multiple simultaneous deposition streams in real time, paired with a full case management interface.
Full-Stack Developer · Sole Lead
HSI Healthcare Software Institutes · Remote · 2023–2024
ReactNestJSPostgreSQLAWS S3Docker- Sole lead engineer on a claims and document management platform for legal professionals, owning end-to-end architecture including data modelling, API design, and AWS infrastructure.
- Delivered the full product lifecycle from initial architecture to production, building lifecycle tracking for claims, fines, and case documents with AWS S3.
Full-Stack Developer
Admin Tools · Constanța, Romania · 2021–2023
NestJSPostgreSQLDockerGitHub ActionsNATSStripe- Built a self-service deployment platform enabling internal teams to trigger cloud-native deployments via a React dashboard, removing dependency on manual DevOps processes.
- Implemented GitOps CI/CD with GitHub Actions, NATS-based event monitoring, and Stripe billing integration across a microservices architecture.
Skills
Technical and soft skills I bring to teams
Backend
Databases
Frontend
AI / ML
DevOps & Testing
Soft Skills
Languages
Interests
Education
Degrees and academic work
Master's Degree, Cyber Security and Machine Learning
Ovidius University of Constanța · Constanța, Romania · Jun 2023
Bachelor's Degree, Computer Science
Ovidius University of Constanța · Constanța, Romania · Jun 2021
Contact
Let's build something together
Available now
Open to roles in AI engineering, full-stack, and education.
Whether it's a product, a research project, or something in between, I'm ready to contribute from day one.