
Zlatko Duric
Verified Expert in Engineering
Software Developer
Munich, Bavaria, Germany
Toptal member since June 12, 2013
Zlatko is an experienced JavaScript developer, working with Angular, React, Node.js, and other technologies. Backed by experience in the field of web applications, Zlatko is focused on the quick delivery of quality web projects. With a long track of working and leading successful web projects as well as coaching and training, Zlatko tries to remain on top of the technology, keeping in mind best practices for performance and maintainability.
Portfolio
Experience
- Linux - 20 years
- JavaScript - 13 years
- REST - 8 years
- Node.js - 8 years
- Express.js - 6 years
- AngularJS - 6 years
- MongoDB - 5 years
- Angular Material - 2 years
Availability
Preferred Environment
CentOS, Ubuntu, Linux, Git
The most amazing...
...thing I've done was connect cars to the internet via an OBD2 dongle.
Work Experience
Principal IT Consultant
MSG Systems AG
- Coached and trained Angular and front-end developers in multiple projects for automotive industry clients.
- Designed the application architecture for an internal Angular, NgRx, and AG Grid-based HR solution.
- Ran weekly ask-the-expert discussions on front-end-related questions.
- Conducted workshops on fundamentals of Angular concepts and Angular architecture.
- Created proof-of-concept D3.js-based widgets with Angular.
- Troubleshot performance issues with virtual tables in Angular.
- Bootstrapped a React app and trained a team of juniors in developing a front-end application for a cloud-based offering.
- Developed, configured, tested, and deployed React applications and microfrontends, including integrating with 3rd-party payment solutions.
- Designed, configured, and deployed production, test, and development environments for various applications based on Dockerized microservices-based software.
Angular and JavaScript Coach and Architect
Msg Systems Ag.
- Migrated AngularJS projects to an Angular 5 codebase.
- Trained colleagues in software development with Angular.
- Architected and implemented an intracompany seed project based on Angular and Bootstrap.
- Integrated ng-CLI and Node.js scripts with Maven projects.
- Architected the front end on the project architecture board.
Consultant, Coach, and Instructor for React, Node.js, Angular, and JavaScript
Duric Consulting
- Trained developers in Angular, JavaScript, and front-end work.
- Architected multiple projects using Angular as a framework.
- Developed scalable Node.js back ends with Redis and MongoDB for persistence.
- Optimized data structures for MongoDB storage by creating and optimizing queries and indexing strategies and aggregations using MapReduce and similar technologies.
- Created Angular websites, web apps, and dashboards for power-user and administrative functionality.
- Ran Google Cloud Platform, AWS, and Azure projects directly via the service offering—compute engines, storage engines, or managed databases and services—or by Dockerizing the software and building and deploying Docker images.
- Administrated Linux servers with DigitalOcean and Scaleway, automated software setup, installation, basic security hardening, and the usual server automation.
- Developed and deployed front ends based on React and Angular frameworks and integrated with 3rd-party libraries and services.
Lead Developer
Snakt, Inc.
- Built a REST API for the mobile video app, scalable, stateless, built mostly with JavaScript and Node.js on AWS stack.
- Designed and implemented DevOps procedures for AWS infrastructure (EB, Lambda, S3, CF, SQS etc),.
- Integrated project infrastructure with third-party services: email (mailgun), Slack (messaging/alerts), Zendesk (support), Twilio (SMS/auth), Facebook (auth), and more.
- Built a responsive Angular-based media-heavy website.
- Built back-office, power-user, and admin dashboards.
Back-end Developer (Node.js)
ThinxNet GmbH
- Led all back-end development in a connected car startup.
- Created aggregation and mapReduce reports on MongoDB collections.
- Designed and implemented message queues on RabbitMQ as well as asynchronous job handling.
- Created and extended a REST API for mobile and web apps.
- Created and extended the back-office REST API for the in-house and public-facing front ends.
- Designed a data model based on MongoDB, including ACL+RBAC.
Founder, Manager, Developer
Ars Tempo d.o.o.
- Developed a Node.js-based in-house invoicing application.
- Integrated PDFKit into the invoicing app.
- Deployed four WordPress sites.
- Deployed three static company sites.
API Dev/Consultant
POSTIFY (via Toptal)
- Implemented a RESTful Node.js back end for postcard creation.
- Implemented Passport.js BearerStrategy request authentication.
- Created a multi-company back end for different apps and users.
- Deployed the app to Heroku and integrated Amazon S3 storage.
- Added ImageMagick as the app's image processing engine.
Full-stack Developer
Cityloque
- Developed a custom, Instagram-like CMS system. Integrated Facebook, Twitter, and local authentication with Passport.js.
- Implemented Mongo and MongoLab as a back end with Mongoose.
- Developed an Express RESTful back end and an Angular front end for the app.
- Integrated Filepicker.io for file uploading and JCropper for image cropping.
Lead Developer
Cityloque
- Created a Mongoose schema for a MongoDB-backed CMS.
- Implemented a RESTful back end for a custom fashion-industry service.
- Created a Pinterest-like image/article posting service.
- Integrated Filepicker.io as the image hosting service.
- Developed various AngularJS directives, filters, and services.
- Turned sliced HTML into Jade templates and partials for supporting the AngularJS application.
- Implemented Socket.IO as a simple messaging service.
Lead Developer
NDA
- Deployed Alfresco Community from SVN HEAD as a base for a custom service.
- Built custom Spring Surf based pages as a dashboard for the new service.
- Developed custom Alfresco data model and RESTful web scripts for this model.
- Developed custom Alfresco Share components for managing content.
Node.js/MongoDB Developer
StylePic
- Created a back end for an iPhone fashion app with MongoDB.
- Integrated a third-party REST API (image recognition) as a back-end search engine.
- Created an administrative web front end for managing the application.
- Integrated full-text search using a MongoDB 2.6 experimental feature.
- Created an on-the-fly configuration change setup with app config saved in MongoDB.
JavaScript Developer
NDA
- Implemented the Stripe.js payment API into a web app.
- Implemented Facebook authentication as well as created and rendered Dust.js template engine.
- Implemented local storage for storing browsing sessions and preferences.
- Stored user and other item information into a MongoDB back end.
Developer
NDA
- Developed a survey application, a single-page app based on AngularJS and Node.js.
- Created Mongoose schema for survey questions and sets of answers.
- Developed a single-page front end with Angular (incl. routing, $resources, etc).
- Developed an authenticated back end for reporting services.
Alfresco Developer
Consiero
- Deployed and integrated an Alfresco-based education platform (public and private membership-based lecture schedules and documentation).
- Integrated self-registration modules for three different roles.
- Extended Alfresco Sites to represent lectures together with schedules and media uploads.
- Integrated SOAP service call to Monster.com API in this solution.
Head of IT Department
Schenker d.o.o.
- Handled the high-level design of an in-house ERP for a logistics/transportation company.
- Installed and implemented Request Tracker and IT-support related processes.
- Wrote automation tasks and scripts on Windows and Linux servers.
- Wrote a MongoDB/Node.js web scraper (to get information from a Railroad public site about shipment positions).
- Managed backups (Simpana CommVault).
IT Development Manager
PBK Partneri d.o.o.
- Developed, deployed, and supported a document management platform in an accounting company.
- Integrated accounting processes and workflows with document classification, approval, booking, payment, archiving, etc.
- Integrated a banking interface (support for Croatian banks' "FINA" format) for paying invoices.
- Integrated a multi-client/multi-provider environment for accounting processes.
- Integrated a partial OCR solution for scanned documents (ID barcode and tax code recognition and matching of invoices to Vendors).
IT Education and Business Process Development Expert
Adriatica.net
- Worked on travel-industry related problems: accommodation, dates, reservations, and offline booking.
- Prepared functional specifications for software development.
- Led the migration/integration project for a new operations platform.
- Implemented business processes in acquired companies.
- Provided education and support for in-house applications.
Linux Administrator
CERP (for HostForWeb.com)
- Supported shared, virtual, and dedicated Linux hosting servers.
- Monitored the network and mitigated the typical attacks on web hosting servers and services.
- Installed and maintained web hosting and related services: Apache/Lighttpd, MySQL, Custom PHP builds, Exim, etc.
- Maintained OpenVZ-based virtual servers, backups, and services.
- Provided support for services and cPanel.
Experience
Cityloque
• Created data schemas with Mongoose and set up MongoDB for persistence.
• Implemented controllers and routing with Express.js and as (pre-delivered) templates in Jade.
• Developed the Angular front-end app, directives, and controllers.
• Implemented a full Instagram-like client in Angular, a custom self-adjustable grid, and real-time notifications with Socket.IO.
• Developed session storage in Redis.
• Deployed the entire portal to a Heroku, MongoLab, and RedisToGo stack.
Twitter Scraper: A Simple Tweet Tracker
JavaScript Ad Widget
MyOffice Accounting Platform
http://ikra.hr/index.php/myofficeI worked on the front end and back end and interfacing solutions.
The solution included:
• Workflows for auto-importing documents, from scanning incoming invoices or picking them from email.
• An OCR solution to extract relevant information from it.
• Specialized accounting applications, like Microsoft Dynamics Nav for displaying reports on-demand.
• Payment files for automating payments with banking systems.
• JBoss BPM-based workflows for managing documentation in a typical accountant's office.
Connected Cars
As a lead back-end engineer, I built and managed the development of RESTful services and APIs that served different purposes, including standard APIs for customers, back-office web and mobile apps, and reporting and processing signals. We worked primarily with Node.js and the MongoDB stack, native Android and iOS clients, and web apps built with Polymer.
Streams - Talk in the WebCamp Zagreb 2014 Conference
Education
University Specialist in Economics Degree in Organization and management postgraduate studies
Economic Faculty in Osijek - Osijek, Croatia
Skills
Libraries/APIs
React, Node.js, NgRx, RxJS, Backbone.js, YUI, jQuery, Restify, Stripe, REST APIs, WebRTC, Amazon API, Chrome API, Slack API
Tools
NPM, FreeMarker, Mongoose, WebStorm, Vim Text Editor, Sublime Text, RabbitMQ, NGINX, Alfresco, Bitbucket, Jenkins, Apache, Iptables, Hyper-V, Git, Gulp, IntelliJ IDEA, Amazon Elastic Block Store (EBS), Amazon Simple Queue Service (SQS), lighttpd, Eclipse IDE, Apache Maven, GitLab CI/CD, Slack, GitHub
Languages
HTML, TypeScript, ES7, ECMAScript (ES6), JavaScript, Go, HTML5, Bash, JADE, CSS3, CSS, SQL, Java, PHP, Python
Frameworks
Jest, Angular, AngularJS, Angular Material, Express.js, Redux, Bootstrap 3+, Spring, Sails.js, Electron, Swagger, React Native, Next.js, Tailwind CSS
Paradigms
Web Architecture, API Architecture, Test-driven Development (TDD), REST, DevOps, Agile, CQRS, Automated Testing, Database Design, Microservices, Functional Programming, MEAN Stack
Platforms
Linux, Android, Amazon Web Services (AWS), Amazon EC2, LAMP, Mapbox, Firebase, cPanel, Ubuntu, CentOS, Google Cloud Platform (GCP), Azure, Docker, Kubernetes, Drone CI, Mobile, X (formerly Twitter)
Storage
MongoDB, JSON, Databases, MySQL, Amazon S3 (AWS S3), Google Cloud, Redis, PostgreSQL, SQLite
Other
Code Architecture, Ajax, Airbnb, APIs, Architecture, Full-stack, Leadership, Software Architecture, Progressive Web Applications (PWAs), Back-end, Virtual DOM, DNS, WebSockets, CI/CD Pipelines, Exim, OpenVZ, Software, Commvault, PDF, RESTful Web Services, TCP/IP, Front-end, Cloud, Design Systems, Storybook, Web Scraping, Document Management Systems (DMS), Video Processing, Browser Plugins, Artificial Intelligence (AI), Annotations, Image Annotation, Image Recognition, Video Streaming, Slackbot
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