Šime Galac

AI Agent & Automation Engineer
Microsoft Certified: Azure Solutions Architect ExpertMicrosoft Certified: Azure Cosmos DB Developer Specialty

I build AI agents that connect reasoning to real business workflows: custom agents, MCP tools and servers, skills, connectors, RAG and real-time voice with custom VAD. Backed by 5+ years of production backend engineering, integrations and Azure architecture.

5+years of experience
10+external integrations
2Microsoft certifications

What I Do

AI Agents & MCP

Custom agents, agent tools and skills, MCP servers and connectors. Make business systems usable by agents through clear tool interfaces and configurable permissions.

Custom agentsMCPTools & skills

Real-Time Voice AI

Real-time voice agents with custom voice activity detection (VAD), speech recognition and speech synthesis.

Real-time voiceCustom VADSTT / TTS

RAG & Multimodal AI

Retrieval grounded in business data and documents, including a document-vectorization project, plus speech and image-generation integrations.

RAGDocument vectorizationMultimodal

Production Automation

Configurable workflows with triggers, conditions, actions, state, idempotency, retries and audit trails. Use deterministic execution where the process is known.

Workflow orchestrationState & retriesAudit trails

APIs & Integrations

Connect messaging, CRM, marketing and cloud services with reliable APIs, OAuth2, token management, webhooks and replaceable connectors.

REST APIsOAuth210+ integrations

Backend & Azure Architecture

Production backend services, multi-tenant systems and pub/sub. C#/.NET, TypeScript/Node.js and Python, with Azure, SQL Server and Cosmos DB.

C# / .NETAzureSystem design

Selected Projects

WhatsApp AI Automation Platform & MCP Control Plane

Production multi-tenant platform orchestrating customer workflows through WhatsApp and connected business services; the platform serves several hundred active clients daily.

2023-present

Custom SEO & Social-Media Agents

Implemented agent-supporting tools, skills, integrations and tests for agents that analyze clients and competitors, suggest blog and social-media content, connect to a CMS and support publication workflows.

Agent Tools, Skills & Retrieval Work

Turned multi-step application tasks into agent-callable tools by reverse-engineering application behavior, then refined tools using available logs.

Selected work

Production Integrations & Workflow Reliability

Built modular production connectors for Google, Meta, Salesforce, Azure AI and Seats.io, including OAuth2, automatic token refresh, webhooks, retries and circuit breakers.

2021-present

Core Capabilities

AI Agents & MCP
Custom AI agentsAgent tools and skillsMCP servers and connectorsOpenAI Responses APIAgent permissions and configurationScenario-based testing
Retrieval, Voice & Multimodal
RAGDocument vectorizationReal-time voice agentsCustom voice activity detection (VAD)Speech-to-text / text-to-speechImage-generation integrationsAzure AI / Cognitive Services
Backend & Platform Engineering
C# / .NETTypeScript / Node.jsPythonREST API designMulti-tenant systemsPub/sub and workflow orchestration
Production Reliability & Design
Azure architectureMS SQL Server / Azure Cosmos DBOAuth2 and token managementRetries, idempotency and circuit breakersMonitoring and production operationsClient requirements and solution design

How I Work

  • Agent engineering: Translate domain knowledge into agent-usable tools and skills, separate deterministic steps from variable reasoning, and test behavior with positive and negative examples.
  • Production mindset: Bring AI features into real workflows with integrations, configurable permissions, operational visibility and dependable backend services.
  • Real World Problem Solving: Start with the actual business problem, find its root cause and deliver a simple, logical solution that is practical to operate and maintain.

Šime Galac

AI Agent & Automation Engineer | Production Systems & Integrations
Microsoft Certified: Azure Solutions Architect ExpertMicrosoft Certified: Azure Cosmos DB Developer Specialty

Professional Summary

Software Engineer with 5+ years building production automation, backend systems and integrations, now focused on AI agents and agent-enabled products. Hands-on work spans custom agents, MCP servers and connectors, skills and tools, RAG, speech and image-generation integrations, and real-time voice agents. Connects AI capabilities to dependable APIs and multi-tenant production services, choosing deterministic execution for known processes and agent reasoning for variable requests. Strong in architecture decisions, production operations and Real World Problem Solving.

Core Capabilities

AI Agents & MCP

Custom AI agentsAgent tools and skillsMCP servers and connectorsOpenAI Responses APIAgent permissions and configurationScenario-based testing

Retrieval, Voice & Multimodal

RAGDocument vectorizationReal-time voice agentsCustom voice activity detection (VAD)Speech-to-text / text-to-speechImage-generation integrationsAzure AI / Cognitive Services

Backend & Platform Engineering

C# / .NETTypeScript / Node.jsPythonREST API designMulti-tenant systemsPub/sub and workflow orchestration

Production Reliability & Design

Azure architectureMS SQL Server / Azure Cosmos DBOAuth2 and token managementRetries, idempotency and circuit breakersMonitoring and production operationsClient requirements and solution design

Voice AI

Real-time voice agents, custom voice activity detection (VAD), speech-to-text and text-to-speech, connected with agent tools and business workflows.

Professional Experience

Software Engineer

2020-present · Zadar, Croatia
Telum Marketing
  • Build production automation and AI capabilities for a multi-tenant WhatsApp Business Process Automation Platform serving several hundred active clients daily.
  • Contribute to custom-agent capabilities across implementation, integrations, tools, skills and testing; work with domain experts to make specialized knowledge usable by agents.
  • Implement supporting tools, skills and integrations for custom SEO and social-media agents that analyze a client and competitors, recommend blog and social content, and connect to CMS publishing workflows.
  • Built an MCP-based administration and control layer for workflow configuration, integrations and process inspection, with fine-grained per-user configuration that can change at runtime without deployment.
  • Apply deterministic code when the process is known and agent skills when requests depend on variable context; use positive and negative examples and repeated testing to improve consistent behavior.
  • Integrate OpenAI Responses API, Azure AI, RAG and document vectorization, image generation, speech services and real-time voice-agent capabilities into software workflows.
  • Make architecture decisions and review AI-assisted code; own production delivery across deployment, monitoring, incident response, backup and recovery while managing infrastructure costs within budget.

Selected Projects

WhatsApp AI Automation Platform & MCP Control Plane

2023-present
Telum Marketing
  • Production multi-tenant platform orchestrating customer workflows through WhatsApp and connected business services; the platform serves several hundred active clients daily.
  • Built an MCP administration layer so compatible agents can inspect and operate workflow configuration, integrations and process tasks through a consistent tool interface, with user-specific granular permissions and runtime configuration.

Stack: C# / .NET, REST APIs, WhatsApp Business API, MCP, OpenAI Responses API, Azure, MS SQL Server, Azure Cosmos DB

Custom SEO & Social-Media Agents

Telum Marketing
  • Implemented agent-supporting tools, skills, integrations and tests for agents that analyze clients and competitors, suggest blog and social-media content, connect to a CMS and support publication workflows.
  • Collaborated with domain experts to translate specialized knowledge into agent-usable capabilities and tests.

Stack: Custom agents, agent tools and skills, MCP, REST integrations, CMS connectivity

Agent Tools, Skills & Retrieval Work

Selected work
Client and internal AI solutions
  • Turned multi-step application tasks into agent-callable tools by reverse-engineering application behavior, then refined tools using available logs.
  • Built RAG solutions using conventional retrieval in most cases and document vectorization for one client project with a large corpus; used positive and negative examples for variable agent behavior.

Stack: MCP tools and servers, connectors, RAG, document vectorization, OpenAI Responses API, Azure AI

Production Integrations & Workflow Reliability

2021-present
Telum Marketing
  • Built modular production connectors for Google, Meta, Salesforce, Azure AI and Seats.io, including OAuth2, automatic token refresh, webhooks, retries and circuit breakers.
  • Designed configurable workflows with triggers, conditions, actions, state transitions, idempotency and audit trails; supported cross-system production operations and troubleshooting.

Stack: C# / .NET, REST APIs, Azure, SQL Server, Cosmos DB, OAuth2, CI/CD

Certifications

Microsoft Certified: Azure Solutions Architect Expert

Azure architecture, scalability, security, monitoring and cost-aware solution design.

Microsoft Certified: Azure Cosmos DB Developer Specialty

Distributed data solutions, consistency, partitioning and performance.

Education & Languages

University Department of Professional Studies - Split
Bacc. ing. techn. inf., Information Technology
2016-2020

Croatian - Native | English - C1 (Advanced)

How I Work

  • Agent engineering: Translate domain knowledge into agent-usable tools and skills, separate deterministic steps from variable reasoning, and test behavior with positive and negative examples.
  • Production mindset: Bring AI features into real workflows with integrations, configurable permissions, operational visibility and dependable backend services.
  • Real World Problem Solving: Start with the actual business problem, find its root cause and deliver a simple, logical solution that is practical to operate and maintain.
Contact Me
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