Full-Stack Developer, DevOps & AI Engineer
BUILDING
INTELLIGENT
SOFTWARE.

I design and engineer LLM-powered products, scalable APIs, and interfaces that feel effortless. Turning complex AI into products people actually use.

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70+
PROJECTS
12+
YEARS
50+
CLIENTS
01About Me
Simeon Ivanov
Simeon Ivanov
AI Expert/Developer/Engineer, DevOps, and Full-Stack Developer

I'm a software engineer and DevOps architect with 12+ years of experience building and scaling products across Python, Java, JavaScript, and PHP, using frameworks like Spring, Django, FastAPI, Angular, React and more. I've designed and operated cloud-native platforms on AWS and GKE with Kubernetes and Docker, with a strong focus on reliability, performance, security and delivery speed. My current focus is AI-first product engineering: building machine learning and agentic systems with PyTorch, NumPy, Pandas, and LangChain to turn cutting-edge models into practical business outcomes.

EXPWork Experience
4 COMPANIES
Lead Full Stack Engineer/Developer
2020 — Present

Architected and operated cloud-native platforms across AWS and GKE using Kubernetes and Docker, while designing and developing robust Java applications and production-ready AI agents with Python, PyTorch, and LangChain.

PythonLangChainOpenAI APIQdrantJavaSpringFastAPIAWSDockerKubernetesAngular
Full-Stack Engineer
2019 — 2020

Engineered ship chartering and freight execution platforms on Kubernetes across cloud and on-prem clusters, building high-throughput services in Python, Java, and PHP and delivering Angular/React interfaces for booking, scheduling, and end-to-end cargo visibility.

PythonPHPJavaSpringSymfonyReactTypeScriptNode.jsMySQLRedisKubernetes
Full-Stack Developer
2016 — 2019

Owned the full lifecycle of on-demand B2B services, from product management and requirements discovery through architecture, development, testing, maintenance, deployment, and production monitoring to ensure reliable, scalable delivery.

JavaPHPAngularJSSymfonySpringMariaDBKubernetes
Software Engineer
2014 — 2016

Architected and developed custom WordPress plugins and themes, delivering scalable, maintainable solutions tailored to client workflows, performance goals, and brand requirements.

PHPJavaScriptWordPressMySQL
02Services
FULL SERVICES PAGE →
01
AI Integration
1 – 30 days
i
02
AI Agents & Automation
1 – 30 days
i
03
Fine-Tuning & Self-Hosted Models
1 – 30 days
i
04
LLMOps & Evaluation
1 – 30 days
i
05
Full-Stack Development
1 – 30 days
i
06
DevOps & Infrastructure
1 – 30 days
i
07
Data Pipelines
1 – 30 days
i
01
SERVICE 01

AI Integration

LLM pipelines, RAG systems, and intelligent features embedded directly into your product. From proof-of-concept to production-grade infrastructure.

What's included
Custom RAG pipeline with vector search including chunking, embedding caching, async ingestion, and hybrid BM25 + vector retrieval
LLM selection, prompt engineering & evaluation
Streaming API with cost & latency optimisation
Observability: tracing, logging, evals dashboard
Handoff documentation & team walkthrough
Tech Stack
LangChainOpenAIClaudeQdrantPineconeFastAPIAWS
Timeline
1 – 30 days
Typical engagement: 1–8 weeks depending on scope. Includes one round of revisions post-launch.
03Portfolio
19 projects · 4 categories
Hazel — AI Customer Support Agent
DEMO

Hazel — AI Customer Support Agent

An AI support agent that works a shared inbox end to end. Hazel triages incoming conversations, drafts replies grounded in connected systems — Shopify orders, Stripe payments, returns, and a help center — surfaces the exact records behind every answer, and flags the cases that genuinely need a human. Routine tickets get resolved automatically while the team keeps full oversight.

Next.jsTypeScriptLangGraphOpenAI
Helix — Internal Knowledge & Ops Assistant
DEMO

Helix — Internal Knowledge & Ops Assistant

An enterprise knowledge assistant that answers any question about your company by searching across every connected source — Slack, Google Drive, Notion, Confluence, Jira, GitHub, and an SOP library — and citing the exact documents behind each answer. It handles onboarding questions, policy lookups, decision history, and meeting summaries, with a live feed of what the rest of the team is asking.

Next.jsTypeScriptLangChainQdrant
Warden — AI Agent Governance & Audit
DEMO

Warden — AI Agent Governance & Audit

A control plane that keeps a fleet of AI agents safe and accountable. Warden enforces live guardrails on every action, redacts PII, gates spend, and routes high-risk steps to human approval — while a flight-recorder audit log captures every decision, verdict, and record. It includes a policy studio for authoring rules and a red-team & evals suite for stress-testing agents before they ship.

Next.jsTypeScriptLangGraphPostgreSQL
Manila — Back-Office Document Agent
DEMO

Manila — Back-Office Document Agent

An intelligent document desk for the back office. Manila reads everything that lands in the mailroom — invoices, purchase orders, contracts and NDAs, insurance claims, HR forms — classifies and routes each one with a confidence score, auto-files the clear cases, and escalates the rest for human review. It ships with a rulebook, configurable document types, an approvals queue, and throughput analytics.

Next.jsTypeScriptLangChainOpenAI
BotverseHub

BotverseHub

A unified platform for managing, training, and interacting with AI bots. Users can spin up bots with custom personas, equip them with selectable tool sets (web search, code execution, file access, APIs), and chat with them in real time. Includes a bot registry, per-bot memory and context management, tool permission controls, conversation history, and an analytics dashboard tracking usage and performance across the entire bot fleet.

AngularTypeScriptPythonFastAPI
05Writing
ALL POSTS →
01
Production RAG Implementation: How I Build Retrieval Systems at Million-Document Scale
RAGLLMAIProductionEngineeringEvaluation
AUG 2026
9 MIN
02
Your Website, Built End to End: From First Conversation to Live, Monitored, and Supported
Web DevelopmentWebsitesServicesDesignHosting
AUG 2026
5 MIN
03
The AI Job Market Paradox: Record Layoffs, Record Vacancies
AICareerLayoffsSoftware EngineeringIndustry
AUG 2026
8 MIN
04
Why 2026 Is Set Up for Its First Multi-Day Cloud Outage
CloudInfrastructureDevOpsReliability
JUL 2026
9 MIN
05
Agentjacking: The New Prompt-Injection Attack Hiding in Your Error Logs
SecurityAIAgentsPrompt InjectionEngineering
JUL 2026
8 MIN