Šime Galac - Software Engineer

Šime Galac

Software Engineer - Automation & Integrations

Tel: +385 91 722 7206 LinkedIn: Profile Location: Zadar, Croatia

* Azure Solutions Architect Expert * Azure Cosmos DB Developer Specialty

5 years of building systems that automate business processes and orchestrate dozens of integrations with external services - from WhatsApp channels to CRMs, marketing platforms, and Azure AI APIs.

5+years of experience

10+external integrations

2Microsoft certifications

AI for delivery automation: I actively use AI tools to accelerate prototyping, code generation, refactoring, and integration diagnostics while keeping architecture and quality decisions firmly engineering-led.

What I Bring

Automation & Workflow

Built an internal framework for defining business flows with triggers, conditions, and actions. Audit trail, idempotency, and reliable execution are built in.

Workflow Framework State Machine Audit Trail

Integrations

Modular integrations with Google APIs, Meta, Salesforce, Azure AI, and Seats.io - OAuth2, retry strategies, and circuit breaker patterns.

REST API OAuth2 10+ connectors

Azure Ecosystem

Azure Solutions Architect Expert in practice - AI Services, Cosmos DB, and Blob Storage used in production projects.

Azure AI Services Cosmos DB Blob Storage

Backend & Architecture

C# / .NET, Clean Architecture, MS SQL Server. Structured logging and code review are standards, not exceptions.

C# / .NET MS SQL Server Clean Architecture

Projects

WhatsApp Business Process Automation Platform

Users communicate through WhatsApp while the backend orchestrates the full business process across external services - from first contact to close.

2024 - present

Integration Connectors - Google, Meta, Salesforce, Azure AI

Modular connector library with OAuth2, automatic token refresh, and circuit breaker logic; Google Drive API, Marketing APIs, and Salesforce REST.

2021 - present

ticket4you.hr - Integration Architecture

External integration layer for a live ticketing platform - Google services, Seats.io real-time reservations, and Azure Blob Storage.

2025 - present

Lead Tracking Platform

System integrated with the client website that drives each lead from first contact to conversion through automated WhatsApp communication and Google Drive documents.

2021 - 2023

Technologies

Backend

C# / .NET REST API Design Clean Architecture Authentication & Authorization

Automation

Workflow Framework WhatsApp Business API State Machine Idempotency & Retries

Integrations

Google APIs Google Drive API Meta Marketing API Salesforce REST API Seats.io OAuth2

Cloud / Data

Azure (Architect Expert) Azure AI Services Azure Cosmos DB Azure Blob Storage MS SQL Server Git / CI/CD

Why I am the right person for automation initiatives

Problem solving is one of my strongest skills - I quickly isolate root causes in multi-system workflows and convert complex issues into clear, actionable fixes.
Integrations and automation are my everyday work - 5 years of building systems that orchestrate business flows across dozens of external services, with modular connectors and audit trail as a standard.
Workflow framework with production experience - built an internal framework for defining automated workflows and understands the tradeoffs between generic flexibility and long-term maintainability.
Azure ecosystem in real projects - both certifications are backed by hands-on use of Azure services in production (AI Services, Cosmos DB, Blob Storage).
Java component - ready to contribute on Java parts of the process layer; integration and architecture patterns are transferable across languages.

Šime Galac

Software Engineer - Automation & Integrations

Tel: +385 91 722 7206 LinkedIn: Profile

* Microsoft Certified: Azure Solutions Architect Expert * Microsoft Certified: Azure Cosmos DB Developer Specialty

Professional Summary

Software engineer focused on business process automation and integrations - builds systems that orchestrate complex flows across external services with strong reliability, clean architecture, and operational visibility.
Problem solving is a standout strength - especially in integration-heavy systems where fast diagnosis and precise fixes directly impact delivery speed.
Primary stack: C# / .NET, REST API design, MS SQL Server, Azure Cosmos DB; production experience with Google APIs, Meta, Salesforce, Azure AI, and Seats.io.
Holder of Azure Solutions Architect Expert and Azure Cosmos DB Developer Specialty certifications - makes architectural decisions with clear tradeoff awareness across scalability, cost, and operational complexity.
Believes business process automation is becoming one of the core segments of modern software development and approaches each project with that mindset from day one.

AI-assisted engineering workflow: Daily use of AI tools for faster development automation, faster iteration loops, and cleaner delivery handoffs.

Core Competencies

Automation & Workflow Orchestration

WhatsApp Business API Workflow Framework (custom) Trigger-Action-Status Engine State Machine Condition Resolver Idempotency & Retries Audit Trail

Integrations

Google Marketing APIs Google Drive API Meta Marketing API Salesforce API Azure AI / Cognitive Services Seats.io API REST API OAuth2 / Token Management Webhooks

Backend

C# / .NET REST API Design Authentication & Authorization Error Handling & Resilience Structured Logging Rate Limiting Clean Architecture

Cloud / DevOps

Azure (Architect Expert) Azure AI Services Azure Blob Storage Git / CI/CD Azure DevOps Monitoring & Observability Secrets Management

Data

MS SQL Server Azure Cosmos DB Structured Event Log

Quality & Frontend

Code Review Mock Services / Test Doubles Integration Flow Debugging Angular Java (familiar, ready to contribute)

Work Experience

Software Engineer 2020 - present · Zadar, Croatia

Telum Marketing

Developed and maintained a business process automation system where users interact through WhatsApp while the backend orchestrates dozens of integrations with external services - CRMs, marketing platforms, and AI services - transparently for end users.
Built an internal framework for defining and executing automated workflows: each business flow is modeled as a composition of configurable steps with triggers, conditions, and actions - significantly reducing implementation time for new processes without changing core logic.
Designed the integration layer for external systems (Google APIs, Meta, Salesforce, Azure AI) with OAuth2 authentication, automatic token refresh, and retry strategies; each connector is isolated as a replaceable component.
Primarily worked with MS SQL Server for structured business data and used Azure Cosmos DB for high-traffic scenarios requiring distributed consistency.
Contributed to integration standards, logging strategy, and code review practices; familiar with Azure DevOps processes and Git workflows for team delivery.

Selected Projects

WhatsApp Business Process Automation Platform Telum Marketing · 2024 - present

Platform where users interact through WhatsApp while the backend drives the full business process - from first contact to close - without manual intervention; built key architecture parts and implemented most integrations.
Built an internal workflow framework that models business flows as compositions of steps with triggers, conditions, and actions - allowing new processes to be added through configuration instead of core logic changes.
Every flow step is recorded in a structured audit log with execution context - enabling precise debugging, change tracking, and analysis of real user behavior patterns.
Stack: C# / .NET, WhatsApp Business API, MS SQL Server, Azure Cosmos DB, Azure AI Services, REST API.

Integration Connectors - Google, Meta, Salesforce, Azure AI Telum Marketing · 2021 - present

Implemented a set of modular connectors for external systems: Google Marketing APIs, Google Drive API, Meta Marketing API, Salesforce, and Azure AI / Cognitive Services - each connector isolated behind a shared interface for easier replacement and testing.
Each connector supports OAuth2 flows with automatic token refresh, exponential retry with jitter, and circuit breaker patterns - integration reliability does not depend on upstream stability.
Sensitive configuration and API keys are injected through configuration layers; secrets management aligned with common cloud security practices.
Stack: C# / .NET, OAuth2, Google API client libraries, Google Drive API, Salesforce REST API, Azure Cognitive Services SDK.

ticket4you.hr - Ticketing Platform Integration Architecture Telum Marketing · 2025 - present

Implemented an external integration layer for the production ticketing platform ticket4you.hr - Google services (authentication, analytics), Seats.io for real-time seat selection and capacity reservation, and Azure Blob Storage for media assets.
Main challenge was state consistency across the ticketing engine, payment system, and external APIs - resolved through transaction management and idempotency logic at every integration step.
Stack: C# / .NET, Seats.io API, Google APIs, Azure Blob Storage, REST API.

Lead Tracking Platform - From Acquisition to Sales Close Telum Marketing · 2021 - 2023

System integrated with the client website via webhooks or lightweight snippets - visitors who express interest automatically enter a structured sales flow without manual input or client-side process changes.
Each lead is tracked across the full lifecycle: initial contact, automated communication (WhatsApp and sales team notifications), status transitions, and final conversion.
Google Drive API integration enables automatic generation and storage of lead-related documents directly into the client's Drive.
Stack: C# / .NET, REST API, MS SQL Server, WhatsApp Business API, Google Drive API, webhook integrations.

Certifications

Microsoft Certified: Azure Solutions Architect Expert

Azure architecture design, high availability, scalability, security, networking, monitoring, and cost optimization.

Microsoft Certified: Azure Cosmos DB Developer Specialty

Design and implementation of distributed data solutions - partitioning, consistency models, global distribution, and performance optimization.

Education

University Department of Professional Studies - Split
Major: Information Technology (IT) · Bacc. ing. techn. inf.
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Tools & Technologies

C# / .NET WhatsApp Business API Workflow Framework (custom) Azure (Architect Expert) Azure AI / Cognitive Services Azure Blob Storage Google Marketing APIs Google Drive API Meta Marketing API Salesforce REST API Seats.io API MS SQL Server Azure Cosmos DB REST API OAuth2 Git CI/CD Azure DevOps Angular Java (familiar) Clean Architecture Mock Services / Test Doubles

Languages

Croatian - native | English - {{ENGLISH_LEVEL}}

Why I am the right person for automation initiatives

Problem solving as a core strength: Strong track record of debugging and stabilizing complex multi-system flows with practical, maintainable solutions.
Integrations and automation as day-to-day engineering: Multi-year experience building systems that orchestrate processes across dozens of external services - with modular connectors, retry strategies, and audit trails as standard architecture components.
Workflow framework with production usage: Built an internal framework for defining and executing automated workflows, with practical understanding of tradeoffs between generic flexibility and long-term maintainability.
Azure ecosystem in practice: Azure Solutions Architect Expert and Azure Cosmos DB Developer Specialty certifications supported by real production usage (AI Services, Cosmos DB, Blob Storage).
Multi-layer environments and debugging: Hands-on experience tracking and diagnosing failures in flows that cross multiple systems, with clear layer ownership and observability.
Java component: Ready to take ownership of Java parts of the process layer; integration and architecture patterns transfer across implementation languages.