I am a full-stack developer with a backend focus, specializing in building automation and cloud solutions using Go and Node.js. I deliver production systems from problem discovery through deployment, aiming to eliminate manual workflows and reduce operational overhead. I combine pragmatic product thinking with technical depth to create efficient and sustainable software solutions. I am comfortable owning complete features and system architectures while maintaining clean, sustainable codebases. My experience spans multiple domains, including municipal services, civic engagement platforms, and e-commerce. I have a strong background in backend engineering, cloud infrastructure, and API design. I have led backend development initiatives, designed privacy-preserving analytics, and implemented complex authorization systems compliant with multi-jurisdiction regulations. I am experienced in mentoring junior developers and balancing technical excellence with business timelines. My freelance work includes building configurable staffing analyzers, appointment subscription systems, and job search optimization platforms. I have also contributed to EU grant compliance automation, COVID-response hospitality ordering systems, and e-learning platforms. I am available for project-based and full-time opportunities and thrive in environments where I can take ownership of solutions and contribute to technical strategy and delivery.

Mario Krajačić

I am a full-stack developer with a backend focus, specializing in building automation and cloud solutions using Go and Node.js. I deliver production systems from problem discovery through deployment, aiming to eliminate manual workflows and reduce operational overhead. I combine pragmatic product thinking with technical depth to create efficient and sustainable software solutions. I am comfortable owning complete features and system architectures while maintaining clean, sustainable codebases. My experience spans multiple domains, including municipal services, civic engagement platforms, and e-commerce. I have a strong background in backend engineering, cloud infrastructure, and API design. I have led backend development initiatives, designed privacy-preserving analytics, and implemented complex authorization systems compliant with multi-jurisdiction regulations. I am experienced in mentoring junior developers and balancing technical excellence with business timelines. My freelance work includes building configurable staffing analyzers, appointment subscription systems, and job search optimization platforms. I have also contributed to EU grant compliance automation, COVID-response hospitality ordering systems, and e-learning platforms. I am available for project-based and full-time opportunities and thrive in environments where I can take ownership of solutions and contribute to technical strategy and delivery.

Available to hire

I am a full-stack developer with a backend focus, specializing in building automation and cloud solutions using Go and Node.js. I deliver production systems from problem discovery through deployment, aiming to eliminate manual workflows and reduce operational overhead. I combine pragmatic product thinking with technical depth to create efficient and sustainable software solutions.

I am comfortable owning complete features and system architectures while maintaining clean, sustainable codebases. My experience spans multiple domains, including municipal services, civic engagement platforms, and e-commerce. I have a strong background in backend engineering, cloud infrastructure, and API design.

I have led backend development initiatives, designed privacy-preserving analytics, and implemented complex authorization systems compliant with multi-jurisdiction regulations. I am experienced in mentoring junior developers and balancing technical excellence with business timelines.

My freelance work includes building configurable staffing analyzers, appointment subscription systems, and job search optimization platforms. I have also contributed to EU grant compliance automation, COVID-response hospitality ordering systems, and e-learning platforms.

I am available for project-based and full-time opportunities and thrive in environments where I can take ownership of solutions and contribute to technical strategy and delivery.

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Experience Level

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Language

Croatian
Fluent
English
Advanced

Work Experience

Software Developer at Freelance
April 1, 2024 - Present
Taking on projects across domains, from quick automations to full system builds. Built configurable staffing analyzer for local hospital, developed appointment subscription system for municipal services, evaluated technical architecture and codebases for acquisition targets, and building a job search optimisation platform in Go.
Backend Developer at Collective Mind DEV
December 1, 2022 - March 31, 2024
Led backend development and technical initiatives across civic and business projects. Delivered civic engagement platform, architected HR system redesign for SaaS transformation, assessed security of real estate platform, created reusable AWS CDK patterns, and owned backend architecture decisions for team of 7.
Full Stack Developer & Technical Consultant at Freelance
May 1, 2019 - December 1, 2022
Designed and implemented EU grant compliance automation, accelerated e-commerce platform with caching and GraphQL, built COVID-response hospitality ordering system, and digitized field assessments with automated insights.
JavaScript Developer at Chingu
June 1, 2018 - March 31, 2019
Implemented team formation algorithm, built GitHub-integrated activity tracking, and created user profiles and peer feedback systems for e-learning platform.

Education

Bachelor of Information Technology at Zagreb University of Applied Sciences
October 1, 2013 - October 1, 2013

Qualifications

Add your qualifications or awards here.

Industry Experience

Government, Professional Services, Software & Internet, Healthcare, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
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