
Certifiedauthur
AI Engineer, I build AI chatbots, RAG systems and automation tools
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Portfolio
Werkervaring
AI Engineer
Kuuka • Freelance
Nov 2025 - Feb 2026 • 3 mos
• Built and deployed multiple AI-driven automation systems (supplier intelligence, order optimization, and market monitoring) that enabled data-driven purchasing decisions, automated supplier evaluation, and surfaced cost-saving opportunities across procurement workflows. • Architected and implemented a multi-channel notification and campaign platform supporting segmentation, analytics, templates, and automated delivery pipelines, enabling marketing and operations teams to run targeted campaigns and track engagement across tenants. • Designed and integrated enterprise-grade integrations and AI tooling (Xero, GA4, Calendly, WhatsApp automation, and MCP tools), expanding product capabilities and enabling autonomous agents to interact with financial systems, analytics, and external services. • Improved system reliability and deployment stability by hardening Docker builds, fixing service orchestration issues, implementing CI-ready tests across ~50+ endpoints, and resolving runtime dependency failures that previously blocked deployments. • Implemented security, compliance, and observability infrastructure including audit logs, incident management, GDPR export flows, PII redaction, and RBAC-based tenant isolation, strengthening platform governance and regulatory readiness.
AI ENGINEER
Zenovo-AI • Freelance
Oct 2024 - Oct 2025 • 1 yr
• Designed and implemented an AI-driven proposal generation platform (FastAPI + LangChain/LangGraph + OpenAI) with multi agent workflows (intent routing, RAG retrieval, structural drafting, reflexion/critic loop) to automate RFQ/RFP response creation. • Built scalable retrieval architecture using PostgreSQL + pgvector and optimized document ingestion (PDF parsing, Google Drive/Docs integration, semantic chunking) to enable high‑relevance, low‑latency context retrieval for generation. • Engineered performance layer with Redis caching, Celery background/periodic workers, and database connection pooling; cut repeated query and generation latency dramatically while supporting asynchronous long‑running tasks. • Delivered production-grade DevOps: Dockerized micro-services, blue‑green deployments via Nginx, and a GitHub Actions CI/CD pipeline (tests, security scanning, load testing, automated rollback) enabling zero‑downtime releases and rapid iteration. • Enforced robustness and observability with Pydantic‑validated LLM outputs, health & metrics endpoints, cache/stat introspection APIs, structured logging, and database optimization routines (index & full‑text strategy) to sustain growth and maintain reliability.
AI Developer
Junify • Freelance
May 2025 - Aug 2025 • 3 mos
• Architected a multi‑agent conversational AI platform using FastAPI, LangChain, and LangGraph; implementing LLM-driven intent routing, context summarization, and dynamic workflow branching to reduce irrelevant agent calls and improve response relevance. • Engineered automated chart generation and data retrieval pipeline (SQL + vector similarity search) that transforms natural language queries into structured insights and frontend-ready visualization configs, accelerating analytical turnaround time. • Designed and enforced robust state management with checkpointed graph execution (PostgreSQL) and background memory summarization, enabling persistent conversational intelligence and lowering token usage via strategic history compression. • Implemented human-in-the-loop decision agents (table selection + interrupt handling) and context sufficiency evaluation, increasing accuracy of downstream retrieval and reducing unnecessary database scans across multi-tenant datasets. • Refactored and stabilized asynchronous API endpoints with resilient error handling, type-safe state propagation, and structured JSON outputs (including chart configs), improving system reliability and integration readiness for production deployment.
5 Reviews
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the_anderf

Frankrijk
very happy with the final product, it was even better than my expectation and also very good price compared to others!

artificial666
Terugkerende klant

Ghana
Need to improve the quality of designs
Tot maximaal US$ 50
Prijs
8 dagen
Looptijd

artificial666
Terugkerende klant

Ghana
Certifiedauthur is an extraordinary Data Engineer! The work was done with exceptional professionalism, exceeding expectations and reflecting great attention to detail 😊. Honestly, his quick responsiveness and deep understanding made everything smooth - he went above and beyond. Very professional and...
joshdedmon
Terugkerende klant

Verenigde Staten
Certifiedauthur did a great job -- their professionalism and work exceeded my expectations.

orenddd

Israël
Always trying to help and make things work. always gives a pass
Tot maximaal US$ 50
Prijs
8 dagen
Looptijd
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