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Tomislav B.

Croatia

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About Me

Tomislav is a data expert with a wealth of experience pursuing his passion for creating immersive data visualizations and maps. He translates his solid geospatial background and GIS expertise into designing and developing custom maps using D3.js and Mapbox, building various desktop GIS applications, and implementing data analytics and data wrangling. Tomislav is also experienced in cross-functional team management, running end-to-end recruiting and screening processes, and as a product owner, using people analytics methods and tools to make data-driven and goal-focused decisions.

Frontend

JavaScript

Other

Data Engineering Data Visualization GIS Maps Cartography Data Analysis d3.js Mapbox Cross-functional team leadership Product Owner

Work history

UpStack

Data Engineer

2023 - Present (2 years)

Remote

Building and improving databases, acquiring data, ETL/ELT, Big Data pipelines, and deploying cloud services on projects.
Administering infrastructure solutions to improve data models, increase data accessibility, and foster data-driven solutions for clients.
Implementing monitoring solutions to ensure data integrity; working closely with engineers, product managers, and other stakeholders.

Data Engineering Data Visualization GIS Maps Cartography Data Analysis d3.js Mapbox JavaScript Cross-functional team leadership Product Owner

Freelance

Head of Operations

2020 - 2022 (2 years)

Remote

Owned several products, led and managed various teams, and ran end-to-end recruiting and vetting processes.
Worked on cross-team functions to ensure day-to-day operations were meeting SLAs and KPIs.
Acted as a data-driven and goal-focused manager, reporting directly to the VP.

Data Engineering Data Analysis Cross-functional team leadership Product Owner

Freelance

Data Visualization Expert & Head of Technical Screening

2014 - Present (11 years)

Remote

Leading a team of technical screeners and preparing new testing materials and techniques; overseeing talent screening, evaluation, and training.
Manipulating 25,000 rows of data from an Excel file and preparing them for visualization using D3.js.
Designing and developing custom maps using D3.js and Mapbox; analyzing data and preparing it for data visualization on a map.

Data Engineering Data Visualization d3.js Mapbox Data Analysis

KvarnerCAD d.o.o

GIS Professional

2013 - 2014 (1 year)

Rijeka, Croatia

Worked on several specialized GIS projects, mainly the integration of Enterprise Asset Management (EAM) with GIS technologies.
Developed various desktop GIS applications using C#.NET and Intergraph GeoMedia technology.
Designed and developed a web application and a GIS portal using JavaScript, C#.NET, and Intergraph GeoMedia Geospatial Portal.

GIS C#JavaScript

TEB Informatika

Software Architect

2003 - 2013 (10 years)

Zagreb, Croatia

Built desktop and web applications, mobile mapping applications for data acquisition, and customized GIS solutions based on JavaScript/HTML, C#/.Net, Java, Intergraph GeoMedia product family, and open-source GIS technologies (FOSS4G), Oracle, and Oracle Spatial.
Designed and developed a mobile data collection application with a real-time field GPS location, photo, and attribute data collection.
Manipulated spatial data and created cartographic presentations and visualizations.

Data Visualization Data Analysis GIS JavaScript C#.NET HTML5 Oracle

Showcase

Cost of Crime

Developed a map to estimate the economic and social cost of crime.
Optimized data visualizations and created dynamic heatmaps.
Implemented lazy loading of Big Data sets in the background.

GPS Coordinates to Gauss–Krüger Transformation Tool

This tool converts GPS coordinates from WGS84 to Gauss–Krüger projections and vice versa.
It is written in pure JavaScript and utilizes Mapbox and Proj4js.
No server-side scripts are involved in the conversion process.

LyfeTrack – Road Trip Soundtrack (Concept)

A mobile application designed as a travel diary focused on emotional connections to music and places.
It integrates with social networks, music streaming services, and geolocation for location-based data.
Features include photo attachment and road trip tracking.

Education

Elements of AI

University of Helsinki

2019 - 2019

Data Analyst Nanodegree

Udacity

2018 - 2019 (1 year)

MSc Cartography and Photogrammetry

University of Zagreb - Zagreb, Croatia

1997 - 2003 (6 years)