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Sertaç Yıldız

@sertayldz

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Senior full-stack software developer delivering scalable web, SaaS, LMS and data-driven solutions.

Turkey

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What I'm looking for

I seek senior full-stack roles where I can build scalable web and SaaS systems, apply cloud-driven data solutions, collaborate with DevOps, and impact product decisions in a growth-focused team.

I am a senior full-stack software developer with over a decade of experience building web applications, LMS, CMS, interactive educational portals, SaaS projects and booking systems.

At Parkos I maintained a high-traffic booking application and CMS, implemented new features, and built a data-driven analysis dashboard on Google Cloud using BigQuery, Cloud Functions and Cloud Storage to improve pricing and availability decisions.

Previously at Vodafone, Mars Sportive and Mynet I maintained enterprise CMS platforms, transformed front-end stacks to React/SASS/TailwindCSS, supported DevOps efforts (including Openshift/dockerization), and developed large-scale CRM, analytics dashboards and e-learning platforms serving millions of users.

I combine backend PHP frameworks (Laravel, Symfony, CodeIgniter) and modern JavaScript stacks (Node, TypeScript, React, Vue) with cloud and DevOps tooling to deliver reliable, performant systems focused on user needs and business impact.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

Parkos

Jan 2022 - Present (4 years 1 month)

Maintained a high-traffic airport parking bookings application and CMS, implemented feature upgrades and a faster search mechanism, and built a BigQuery-driven analytics dashboard on Google Cloud to improve pricing and availability decisions.

PHP Google Cloud BigQuery Cloud Functions Cloud Storage CMS Docker

Senior Software Developer

Vodafone

Jan 2021 - Jan 2022 (1 year)

Maintained Vodafone Turkey's CMS and migrated front-end stack to React/SASS/Tailwind, improved web accessibility and security, introduced a new Git strategy, and supported DevOps to dockerize development environments on OpenShift.

React SASS TailwindCSS CMS Git Docker OpenShift Web Accessibility DevOps

Senior Software Developer

Mars Spor ve

Jan 2020 - Jan 2021 (1 year)

Built and maintained a large-scale CRM and analytics dashboards for membership and club data, created customized departmental dashboards via APIs, and implemented an online sales system while supporting server installation and configuration.

CRM Dashboards APIs Big Data PHP SQL Configuration DevOps Online Sales

Senior Software Developer

Mynet

Jan 2017 - Jan 2020 (3 years)

Developed and maintained an e-learning platform and LMS dashboard, optimized servers and integrated CDN to scale to millions of users, and built a B2B SaaS e-learning product and custom corporate implementations.

E Learning LMS PHP CDN Performance Optimization SaaS MySQL PostgreSQL API Development

Full-Stack PHP Developer

Markakod Interactive

Jan 2015 - Jan 2017 (2 years)

Designed and managed websites, applications, and e-commerce systems for major Turkish clients and led development of The Kids Project for Expo2016 Antalya, including a 3D multiplayer game and moderated social network for children.

PHP MySQL JavaScript E commerce Development CMS MVC Project Management

PHP & Web Developer

Gedex Interactive

Jan 2013 - Jan 2015 (2 years)

Built an interactive e-learning system for children with 83,000+ educational screens and developed a CMS dashboard to manage content and synchronize student data with the Board of Education.

PHP CMS E Learning Content Management SQL Integration

PHP & Web Developer

Expert Akademi

Jan 2009 - Jan 2013 (4 years)

Started software development career building PHP-MVC websites, CMS and CRM solutions for mid- to large-scale clients and provided SEO/SEM consultancy while participating in professional training programs.