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Sandi Macek

@sandimacek

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Senior Developer at Mixam UK Ltd. who improved platform performance, cutting page load times by over 400%.

United Kingdom

Message

At Mixam UK Ltd., I deliver platform improvements across customer-facing features, supplier integrations, pricing services, internal tools, and REST APIs. I modernised legacy Java services and improved performance, reducing page load times by over 400%.

Previously, I developed Symfony microservices for The Drum's public platform and internal CMS at Carnyx Group Ltd. - The Drum, and contributed to CloudPay's payroll platform, including its Java payroll engine, REST APIs, and automation tools.

Experience

Work history, roles, and key accomplishments

Current

Senior Developer

Current

Mixam UK Ltd.

May 2023 - Present (3 years 6 months)

Led technical delivery of major platform improvements including customer-facing rebrand, supplier integrations, pricing services, and performance optimisation. Modernised legacy Java services and improved application performance, reducing page load times by over 400%.

Java Spring Framework REST APIs Performance Optimization Caching Frontend Technologies System Integration

Software Engineer

Carnyx Group Ltd. - The Drum

May 2022 - Apr 2023 (11 months)

Developed Symfony microservices powering The Drum's public platform and internal CMS. Contributed to containerised services using Docker and supported the evolution of the service-oriented architecture.

Symfony Microservices Docker PHP Frontend Development Version Control

Software Engineer

CloudPay Technology Ltd.

Jan 2016 - May 2022 (6 years 4 months)

Delivered enhancements to CloudPay's payroll platform, developing new payroll processes and enhancing the bespoke Java payroll engine. Designed REST APIs, automation tools, and console applications that reduced manual operational tasks.

Java Spring Framework PHP Laravel JavaScript SQL BPM REST APIs Automation Database Design Unit Testing Performance Testing

Web Designer and Developer

Meika Ltd. – Primrose

Apr 2015 - Oct 2015 (6 months)

Maintained and enhanced a large e-commerce platform, developing responsive landing pages and category pages. Ensured compatibility across major browsers and devices within a LAMP environment.

PHP HTML CSS MySQL LAMP Ecommerce Responsive Design

Developer

Varikon d.o.o.

Nov 2013 - Jul 2014 (8 months)

Improved the company's web platform by developing new functionality using PHP, CodeIgniter, HTML, CSS, and MySQL. Contributed to website maintenance, bug fixing, and cross-browser compatibility.

PHP CodeIgniter HTML CSS MySQL cross browser compatibility