Marko is available for hire

Marko Lazarević

Verified Expert in Engineering

Robotic Process Automation (RPA) Developer

Belgrade, Serbia

Toptal member since April 16, 2019

Expertise

UiPath Excel Development Excel Macros VBA Visual Studio Development SQL MySQL C#Python Windows Development Salesforce Development Crystal Reports Apache Airflow RPA

Bio

Marko is a UiPath-certified developer and data enthusiast with over 8 years of professional RPA experience. He loves combining statistics with RPA and exploring the dynamic field of cognitive robotics. Marko also possesses proficient skills in SQL, VBA together with Python.

Portfolio

Audience Measurement & Media Analytics Organization

UiPath, Python, Apache Airflow, SQL, Microsoft Power Automate

Fleet Management Enterprise (via Toptal)

UiPath

Healthcare Services Organization (via Toptal)

Robotic Process Automation (RPA), UiPath, Electronic Medical Records (EMR)

Experience

Microsoft Excel - 10 years
Visual Basic for Applications (VBA) - 9 years
Excel Macros - 9 years
Excel VBA - 9 years
UiPath - 8 years
SQL - 6 years
WinAutomation - 2 years
C# - 2 years

Preferred Environment

UiPath, Windows

The most amazing...

...project I've completed was enhancing existing RPA OCR engines using data parsing, validation, and manipulation to achieve higher text reading accuracy.

Work Experience

Automation Developer (RPA & Process Automation)

2021 - PRESENT

Audience Measurement & Media Analytics Organization

Designed, developed, and deployed end-to-end automation solutions using UiPath, improving operational efficiency and reducing manual effort across multiple business processes.
Built scalable automation workflows for data extraction, transformation, and reporting in media and audience measurement processes.
Developed Python scripts for data processing, API integrations, and handling large datasets to support automation use cases.
Utilized Power Automate for lightweight workflows, approvals, and integrations within the Microsoft ecosystem (SharePoint, Outlook, Teams).
Collaborated with business stakeholders to gather requirements, analyze processes, and identify automation opportunities aligned with business goals.
Participated in UAT, deployment, and post-production support, ensuring smooth transition and continuous improvement of automation solutions.
Maintained documentation, including process design documents (PDD), solution design documents (SDD), and operational runbooks.

Technologies: UiPath, Python, Apache Airflow, SQL, Microsoft Power Automate

UiPath Developer (RPA & Automation)

2025 - 2025

Fleet Management Enterprise (via Toptal)

Designed and developed automation solutions using UiPath to streamline operations in vehicle servicing, parts management, and customer handling processes.
Automated service order processing, including data entry, job card creation, and updates across internal systems, reducing manual workload and turnaround time.
Built bots to extract and process data from invoices, repair reports, and supplier documents using OCR and data extraction techniques.
Led UAT, deployment, and ongoing support, ensuring minimal disruption to business operations.

Technologies: UiPath

RPA Developer (UiPath & Process Automation)

2024 - 2025

Healthcare Services Organization (via Toptal)

Designed and developed end-to-end automation solutions using UiPath to streamline healthcare operations, including patient data processing, billing, and administrative workflows.
Automated data entry and validation processes across healthcare systems, improving accuracy and reducing manual effort in handling patient and claims information.
Integrated UiPath workflows with internal systems and external platforms using REST APIs and secure data exchange methods, ensuring compliance with data handling standards.
Monitored and optimized automations continuously to improve performance, scalability, and maintainability.

Technologies: Robotic Process Automation (RPA), UiPath, Electronic Medical Records (EMR)

RPA/VBA Developer

2018 - 2021

P3

Developed the UiPath workflow, including OCR reading, Word document processing, SAP automation, and data scraping—both Orchestrator-related and stand-alone.
Performed maintenance and hypercare on deployed solutions.
Participated actively in business analysis and documentation.

Technologies: UiPath, Visual Basic for Applications (VBA), SQL, C#, Microsoft Excel, Robotic Process Automation (RPA), Microsoft Power Automate

RPA/VBA Developer

2017 - 2018

GEODIS SCO

Supported the operations team and developed automations using WinAutomation, UiPath, and VBA.
Analyzed processes and conducted feasibility studies.
Gathered business requirements and performed prioritization.
Provided training to operations teams and guidance for the usage of automations.

Technologies: UiPath, WinAutomation, Microsoft Excel, Robotic Process Automation (RPA)

Business Analyst

2016 - 2017

NCR

Created reports using SAP BO and SQL on a daily basis.
Researched the cause of potential inventory discrepancies where normal procedures gave no result.
Used macros and data loader to automate simpler data entry tasks.

Technologies: SAP BO Cloud, SQL, Excel VBA, Dataloader.io

IT Sales Specialist

2014 - 2016

E-Smart Systems

Created sales strategies for in-house developed solutions.
Collaborated with the engineering team to understand possibilities and the delivery process.
Conducted IT solution presentations. Gave guidance and assistance in the pre-sales process.

Technologies: Sales, Procurement, UI Testing, UX Testing

Experience

OCR Text Reading

I enhanced the existing UiPath OCR engines by applying string parsing, validation, and manipulation, significantly improving text reading accuracy. The project included extensive testing and engine comparison analysis.

UiPath Custom Activities

I handled the creation of UiPath custom activities (using Visual Studio and C#) for Word document processing, as UiPath has a small number of default activities available for this type of document processing.

Document Understanding

I created a document understanding model using UiPath AI Center to read and process scanned invoice documents. The model would classify the document, extract information, and send it downstream for further processing.

Education

2013 - 2014

Master's Degree in Management of Development

Faculty of Organizational Sciences - Belgrade, Serbia

2009 - 2013

Bachelor's Degree in Operations Management

Faculty of Organizational Sciences - Belgrade, Serbia

UiPath

Skills

Tools

Microsoft Excel, Visual Studio, WinAutomation, Crystal Reports, Apache Airflow

Languages

Excel VBA, Visual Basic for Applications (VBA), SQL, C#, Python

Paradigms

Management

Platforms

Windows, Microsoft Power Automate

Storage

MySQL, Dataloader.io

Other

UiPath, Robotic Process Automation (RPA), Excel Macros, Logistics, Statistics, Planning, SAP BO Cloud, Sales, Procurement, UI Testing, UX Testing, Electronic Medical Records (EMR)

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