
Ante Rejo
Verified Expert in Engineering
Consultant and Product Developer
Split, Croatia
Toptal member since December 2, 2016
Ante is a seasoned professional who focuses on optimizing business processes by integrating technology and data. He has over 13 years of software development, data analysis, and team leadership expertise. During his career, he's worked on all stages of a project's lifecycle and has successfully led teams while keeping a hands-on approach. Currently, Ante is helping various companies build their development teams and guiding them through their organizational processes.
Portfolio
Experience
- Agile Software Development - 12 years
- Technical Analysis - 10 years
- Data Analysis - 9 years
- PHP - 8 years
- MySQL - 7 years
- JavaScript - 6 years
- Technical Project Management - 6 years
- Business Process Optimization - 5 years
Availability
Preferred Environment
Git, Shell, OS X, Linux, Slack, Zoom, Jira, Trello
The most amazing...
...product I've built is an integrated custom GUI web crawler running on a private proxy—used to parse and analyze large sets of unformatted data.
Work Experience
Manager, Business Operations
Toptal
- Led a globally distributed team, including a project manager, business analyst, and enablement manager, to drive scaling and growth initiatives at Toptal.
- Collaborated cross-functionally with product, business operations, engineering, design, and legal on driving conversion, customer retention, and service quality of Toptal's matching team.
- Handled the end-to-end implementation of new business processes and frameworks that reduced the workload of 60 staff members by 25%.
- Drove critical business optimization projects and developed operational strategies in an organization with $200 million in annual revenue and a continuous hypergrowth mode.
Product Operations Manager
Toptal
- Liaised with cross-functional teams, including product, sales, operations, engineering, and business analytics, to ideate, scope, and execute projects with critical business impact that generated significant revenue.
- Led and executed 50+ strategic product initiatives, employing tools like SQL, Excel, Jira, and Confluence, enabling the organization to make data-driven decisions and increase operational efficiency to meet target KPIs.
- Steered the enablement strategy of new product releases and operational frameworks, ensuring the seamless rollout of training, processes, and tools across 100+ team members.
Director of Engineering
Toptal
- Helped over 200 clients, comprising startups, businesses, and organizations, by matching them with the exclusive network of the best engineering experts in the world.
- Evaluated and quantified the business impact of long-term projects. Helped clients translate requirements into actionable deliverables while performing feature discovery, estimation, and prioritization.
- Gathered and assessed project requirements, provided technical guidance, and consulted clients on the best direction for project development.
- Organized the communication needed for remote work and executed the initial scope and business analysis, helping clients improve their remote workflows.
- Met target KPIs in conversion and speed month-over-month, landing in the top 10% performing team members and leading to a subsequent promotion.
Project Architect | Lead Developer
X24Factory GmbH
- Architected and developed a new version of a furniture store using Nuxt.js for JavaScript server-side rendering, Vue framework with Vuex store, and leveraging multiple RESTful API services.
- Led a team of four and coordinated with multiple other teams to achieve the most efficient task planning.
- Implemented multiple external API services, along with a headless, browser-based content management system.
- Built an integration with Algolia, a search platform. Configured and created several custom components for managing indices and displaying search results.
- Implemented a language configuration and localization for serving multiple versions of the site based on the domain.
- Developed an SEO-friendly single-page app, focusing on refactoring the components by reducing the number of requests for better site optimization.
Lead Front-end Developer
Rowe.rs Limited (now Ludum)
- Architected and developed a new version of Rowe.rs sports platform using Vue framework and leveraging a RESTful API service.
- Built an authentication module and a dedicated JavaScript package for user signup and registration, using OAuth2 tokens.
- Created an event calendar system with additional features such as drag-n-drop event creation, auto-updating, event synchronization, and custom calendar views.
- Implemented a detailed sports results entry and overview system; including parsing imported JSON files, and GPS data visualization using interactive charts and graphs.
- Developed a messaging system for better user communication throughout the app, including file, image, and video attachments.
- Designed and implemented a modularized state management system with Vuex, used by various app components.
Full-stack Software Developer
Content Launch
- Built integrations using 3-legged OAuth2 with 3rd-party services such as HubSpot, Google Drive, Analytics, LinkedIn, Mailchimp, and Dropbox.
- Developed an application subscription module which uses the Stripe API integration to make new and manage existing user subscriptions and plans.
- Rewrote the existing PHP and Backbone legacy code to Vue 2 components and new API endpoints.
- Built a content export module—used for converting and downloading user content as Word and PDF documents.
Senior Software Developer
AD Lifestyle Network
- Migrated several websites and led the management system to a managed VPS.
- Implemented a third-party API for user input verification using AJAX.
- Fixed multiple issues with caching plugins, data storage, and environment variables.
- Modified and updated an existing PHP template engine configuration.
- Built a custom CRM (lead management system) and optimized content landing pages.
Senior Software Developer
CODA
- Developed and worked on several custom management and marketing systems.
- Built a Laravel-based custom designed web crawler app, used for search indexing, collecting, sorting, and displaying results.
- Worked with the Luminati proxy network API—rewrote the existing PHP application for work through a proxy.
- Created a headless browser with PhantomJS for collecting sets of dynamic web content.
- Developed a URL builder with a user interface for managing advertisement campaign parameters (Yahoo, Taboola, Outbrain, and more).
- Engineered a custom RSS feed builder for a marketing website with multiple exporting options.
- Contributed to multiple WordPress sites—creating themes and plugins, implementing new features, and redesigning existing sites.
- Implemented a header-bidding framework—used on a publishers' site for running pre-bidding and advertisement auctions.
- Designed relational databases and developed and maintained MySQL migration scripts.
Software Engineer
Static
- Developed a custom web-based financial transaction software, used for sales management, income control, and connecting with receipt authorization service.
- Designed and deployed multiple custom CMS-based travel agency websites, with features like travel reservation system, booking calendars, and payment tracking.
- Created a subscription system for a rent-a-car agency newsletter.
- Built a point-of-sale application based on the Openbravo Java platform and created a configurable payment module for the client.
- Wrote script for handling X.509 digitally-signed documents, with the ability to modify signatures and certificates through a GUI.
- Devised an XML and CSV document parser in PHP—used for importing various formatted data to an online CMS.
- Integrated the JWT authentication through a REST API on multiple online stores and systems.
Software Engineer
Freelance Work
- Created an open-source temporary mailbox script with PHP for receiving emails from random addresses.
- Built a web-based system application that handles user-group authorization and student grades for a local university. Created an API to allow integration into an existing faculty system.
- Rearchitected a large multi-user application using MVC coding style. Wrote a module for interacting with Microsoft SQL DB on a Linux server.
- Designed a complete CMS solution and a website for a motorcycle dealer company.
- Customized procedural logic and modified existing features in a PHP invoicing app.
- Developed an API interface for a multiplatform app used by rent-a-car agencies to manage and share in-house vehicle data.
Experience
Toptal's Matching Process Optimization
I managed the scoping, prioritization, and execution of multiple revenue-generating projects by collaborating closely with cross-functional teams in operations, product, engineering, and sales, significantly improving the team's conversion, speed, and efficiency.
Financial Transaction and Invoicing System Startup
I created a custom web-based financial transaction software for retail sales management, income control, and connecting with a government receipt authorization service. I led the project development of the new software solution on two distinct platforms: desktop and web. I also met tight deadlines in product development and ensured timely delivery of new product iterations within the defined budget.
Ludum (formerly Rowe.rs)
https://ludum.com/I managed a team of four engineers during the implementation of advanced GPS tracking and event calendar systems, which resulted in the real-time visualization of rowers' positions during competitions and the enhanced scheduling of training in less than 30 seconds.
While providing leadership and technical guidance to the team, I facilitated their upskilling in Vue and Node.js and helped them transition to more senior roles within six months.
X24 Factory
https://www.moebel24.de/I managed a team of four engineers in rearchitecting and rebuilding Moebel24's existing internet presence while leading the development of two complementary home furniture websites, Moebel24.de and Hometiger.com.
Content Launch
https://contentlaunch.com/Content Launch is the first content marketing platform focused on entrepreneurs, content producers, influencers, and thought leaders. I helped create the initial version of the platform by leading the implementation of critical integrations with various external services such as Stripe, LinkedIn, and Google Drive.
Temporary Mailbox
https://github.com/antesko/TempMail.phpEducation
Master's Degree in Computer Science
University of Split - Split
Bachelor's Degree in Computer Science
University of Split - Split
Certifications
Lean Six Sigma Green Belt
Six Sigma Academy Amsterdam
Google Data Analytics Professional
Google | via Coursera
Skills
Libraries/APIs
Vue, REST APIs, jQuery, Node.js, Vuex, Lodash, Redis Queue
Tools
Slack, Zoom, Trello, Vagrant, Jira, Git, Shell, Amazon Cognito, Bower, Tableau
Languages
SQL, PHP, JavaScript, HTML, PHP 7, Sass, CSS3, Java, CSS, Python
Frameworks
Laravel, Homestead, Twig, AngularJS
Paradigms
Agile, Scrum, Agile Software Development, Requirements Analysis, RESTful Development, Kanban, Web Architecture, Agile Project Management, Six Sigma
Platforms
LAMP, WordPress, Linux, OS X, Algolia, Amazon Web Services (AWS), Linode
Storage
MySQL, SQLite, JSON, Microsoft SQL Server, Amazon DynamoDB
Other
Ajax, Software Development, Business Process Optimization, Data Analysis, Vue Router, APIs, Technical Analysis, Web Development, Team Leadership, Product Management, Technical Project Management, Negotiation, Product Ownership, Key Performance Indicators (KPIs), Operational Excellence, Virtual Private Servers, Computer Science, Agile Product Delivery, Software Architecture, Cryptography, Content Management Systems (CMS), Dispute Resolution, Enablement, Technical Product Management, Cross-functional Collaboration, Feature Backlog Prioritization, Artificial Intelligence (AI), Monday.com, Team Management, Sales, Point of Sale, Emailers, IT Project Management, OAuth
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