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I am Marko Vasic, a Senior Software Engineer with 10+ years of backend development, DevOps, and cloud infrastructure, delivering scalable, high-performance systems for global platforms. I have a proven track record of modernizing legacy codebases, cutting API response times by up to 55%, and reducing downtime by 40% through advanced monitoring and automation. I specialize in PHP, Python, MySQL, Laravel, AWS, and CI/CD, building resilient, cost-efficient solutions that drive measurable business results.…I am Marko Vasic, a Senior Software Engineer with 10+ years of backend development, DevOps, and cloud infrastructure, delivering scalable, high-performance systems for global platforms. I have a proven track record of modernizing legacy codebases, cutting API response times by up to 55%, and reducing downtime by 40% through advanced monitoring and automation. I specialize in PHP, Python, MySQL, Laravel, AWS, and CI/CD, building resilient, cost-efficient solutions that drive measurable business results.

Marko Vasic

Web Developer, Full Stack Developer, Front-End Developer, +4

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I am Marko Vasic, a Senior Software Engineer with 10+ years of backend development, DevOps, and cloud infrastructure, delivering scalable, high-performance systems for global platforms. I have a proven track record of modernizing legacy codebases, cutting API response times by up to 55%, and reducing downtime by 40% through advanced monitoring and automation. I specialize in PHP, Python, MySQL, Laravel, AWS, and CI/CD, building resilient, cost-efficient solutions that drive measurable business results.…I am Marko Vasic, a Senior Software Engineer with 10+ years of backend development, DevOps, and cloud infrastructure, delivering scalable, high-performance systems for global platforms. I have a proven track record of modernizing legacy codebases, cutting API response times by up to 55%, and reducing downtime by 40% through advanced monitoring and automation. I specialize in PHP, Python, MySQL, Laravel, AWS, and CI/CD, building resilient, cost-efficient solutions that drive measurable business results.

Available to hire

I am Marko Vasic, a Senior Software Engineer with 10+ years of backend development, DevOps, and cloud infrastructure, delivering scalable, high-performance systems for global platforms.
I have a proven track record of modernizing legacy codebases, cutting API response times by up to 55%, and reducing downtime by 40% through advanced monitoring and automation. I specialize in PHP, Python, MySQL, Laravel, AWS, and CI/CD, building resilient, cost-efficient solutions that drive measurable business results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Serbian

Fluent

Work Experience

Software Engineer & Architect

November 1, 2020 - Present

Architected and developed scalable Python-based monitoring services with intelligent traffic learning algorithms, improving incident detection and reducing downtime by 40%. Designed and deployed Laravel 8+ + React alerting and incident management tools, cutting incident resolution time by 25%. Built a Java-based repository governance tool to enforce code quality, manage PR approvals, and ensure compliance during code freezes, increasing code review efficiency by 30%. Mentored junior developers and led architecture reviews, ensuring best practices and maintainable designs. Optimized cloud deployments, reducing infrastructure costs and improving deployment speed by 20%.

Senior Web Developer & Architect at GetSwift

November 1, 2019 - November 1, 2020

Designed and implemented high-traffic delivery applications using Slim, AngularJS, and ReactJS, supporting thousands of concurrent orders. Managed large client solutions with 99.98% uptime, improved deployment processes and scalability. Mentored junior developers, enhancing overall team productivity. Integrated Java-based backend services with modern frontend stacks, improving load times by 20%.

Senior Web Developer, Architect & Team Lead at Software House

October 1, 2017 - October 1, 2019

Led a 12-member development team, delivering 90% of projects on time and within scope. Architected marketing tooling and payment processor integrations with Laravel, Symfony, and VueJS, increasing lead conversion by 18%. Developed Spring Boot backend services and ReactJS applications, including a mobile iOS app. Improved CI/CD pipelines using Jenkins and Docker, reducing release cycle time by 30%.

Senior Web Developer at 42Coders

November 1, 2016 - September 1, 2017

Delivered custom PHP and JavaScript applications, achieving 95% client satisfaction. Optimized database queries and front-end performance for faster load times and improved UX.

Web Developer at Hyperoptic

June 1, 2015 - November 1, 2016

Developed and maintained internal apps and customer-facing websites, including an order processing system. Built hybrid mobile applications using PhoneGap, improving service accessibility.

PHP Developer at Scopic Software; Orange Travel Group; ITAF; OneClick Solutions; Freelance PHP Development

January 1, 2011 - January 1, 2015

Developed large-scale travel and e-commerce platforms handling thousands of daily transactions. Created CMS and custom applications, improving data handling and automation.

Senior Software Engineer & Architect

November 1, 2020 - Present

Architected and developed scalable Python-based monitoring services with intelligent traffic-learning algorithms, improving incident detection and reducing downtime by 40%. Designed and deployed Laravel 8+ React alerting and incident-management tools, cutting incident-resolution time by 25%. Built a Java-based repository governance tool to enforce code quality, manage PR approvals, and ensure compliance during code freezes, increasing code-review efficiency by 30%. Mentored junior developers and led architecture reviews to ensure best practices and maintainable designs. Optimized cloud deployments, reducing infrastructure costs and improving deployment speed by 20%.

Senior Web Developer & Architect

November 1, 2019 - November 1, 2020

Designed and implemented high-traffic delivery applications using Slim, AngularJS, and ReactJS, supporting thousands of concurrent orders. Managed large client solutions with 99.98% uptime, improving deployment processes and scalability. Mentored junior developers, boosting overall team productivity. Integrated Java-based backend services with modern frontends, optimizing load times by 20%.

Senior Web Developer, Architect & Team Lead

October 1, 2017 - October 1, 2019

Led a 12-person development team, delivering 90% of projects on time and within scope. Architected marketing toolchains and payment processor integrations with Laravel, Symfony, and Vue.js, increasing lead conversion by 18%. Developed Java Spring Boot backend services and ReactJS applications, including a mobile iOS app. Improved CI/CD pipelines with Jenkins and Docker, reducing release cycle time by 30%.

Senior Web Developer

November 1, 2016 - September 1, 2017

Delivered custom PHP and JavaScript applications, achieving 95% client satisfaction. Optimized database queries and front-end performance for faster load times and improved UX.

Web Developer

June 1, 2015 - November 1, 2016

Developed and maintained internal apps and customer-facing websites, including an order-processing system. Built hybrid mobile applications using PhoneGap, improving service accessibility.

PHP/Web Developer

January 1, 2011 - January 1, 2015

Developed large-scale travel and e-commerce platforms handling thousands of daily transactions. Created CMS and custom applications, improving data handling and automation. Technologies included Laravel, Yii, CakePHP, MySQL; administered Linux servers.

Senior Software Engineer at PRO

November 2, 2020 - Present

Engineered a Python-based monitoring and alerting system, integrating Google BigQuery and Datadog to improve observability and cut downtime by 40%.

Senior Web Developer at GetSwift

November 2, 2019 - November 2, 2020

Migrated core platform from plain PHP to Symfony framework, increasing system stability and decreasing bug-related downtime by 35%. Delivered backend services with 99.98% uptime, ensuring SLA compliance and strengthening enterprise client retention. Optimized REST API endpoints to handle increased order volume with reduced latency.

Senior Web Developer at Software Haus

October 1, 2017 - November 1, 2019

Directed a 12-member Agile development team, delivering 90% of projects on time while contributing to backend architecture and deployment strategies. Built a Laravel-based marketing automation platform with integrated payment processors, driving 18% increase in lead conversion. Developed and deployed a real-time messaging system (Node.js + VueJS), improving customer support resolution times by 25%.

Senior & Junior PHP Developer at Scopic; Hyperoptic; Orange Travel Group; ITAF; OneClick Solutions

January 1, 2012 - January 1, 2016

Developed a large-scale travel booking platform for 8 countries, processing thousands of daily transactions and optimizing MySQL queries for high concurrency. Created and maintained CMS and e-commerce solutions handling 100K+ monthly visitors.

Software Engineer at PRO

November 2, 2020 - Present

Engineered a Python-based monitoring and alerting system, integrating Google BigQuery and DataDog to improve observability and cut downtime by 40%.

Senior & Junior PHP Developer at Scopic, Hyperoptic, Orange Travel Group, ITAF, OneClic Solutions

January 1, 2012 - January 1, 2016

Developed large-scale travel booking platform for 8 countries, processing thousands of daily transactions and optimizing MySQL queries for high concurrency; created and maintained CMS and e-commerce solutions handling 100K+ monthly visitors.