For many years, I have been developing and building PHP-based applications with joy and passion. My motto is: "There is no such thing as 'impossible'." I would particularly like to highlight my extensive experience in PHP, MySQL, TypeScript, JavaScript, jQuery, and HTML/CSS, as well as in numerous backend and frontend frameworks. I also have strong skills in server operations configuration (Apache, nginx, load balancers, etc.) For local development, I am also proficient with Docker. Between 2013 and 2023, I successfully completed numerous freelance projects. At one stage of my career, I spent a year focused specifically on optimizing MySQL queries. The guiding principle was: "The only good query is one with two zeros after the decimal point." In another project, I developed a multi-tenant SaaS application specifically focused on mobile devices. I am a permanent U.S. resident and do not require sponsorship.

Oliver Maslo

For many years, I have been developing and building PHP-based applications with joy and passion. My motto is: "There is no such thing as 'impossible'." I would particularly like to highlight my extensive experience in PHP, MySQL, TypeScript, JavaScript, jQuery, and HTML/CSS, as well as in numerous backend and frontend frameworks. I also have strong skills in server operations configuration (Apache, nginx, load balancers, etc.) For local development, I am also proficient with Docker. Between 2013 and 2023, I successfully completed numerous freelance projects. At one stage of my career, I spent a year focused specifically on optimizing MySQL queries. The guiding principle was: "The only good query is one with two zeros after the decimal point." In another project, I developed a multi-tenant SaaS application specifically focused on mobile devices. I am a permanent U.S. resident and do not require sponsorship.

Available to hire

For many years, I have been developing and building PHP-based applications with joy and passion.
My motto is: “There is no such thing as ‘impossible’.”
I would particularly like to highlight my extensive experience in PHP, MySQL, TypeScript, JavaScript, jQuery, and HTML/CSS, as well as in numerous backend and frontend frameworks.
I also have strong skills in server operations configuration (Apache, nginx, load balancers, etc.)
For local development, I am also proficient with Docker.

Between 2013 and 2023, I successfully completed numerous freelance projects. At one stage of my career, I spent a year focused specifically on optimizing MySQL queries.
The guiding principle was: “The only good query is one with two zeros after the decimal point.”
In another project, I developed a multi-tenant SaaS application specifically focused on mobile devices.
I am a permanent U.S. resident and do not require sponsorship.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

German
Fluent
English
Fluent

Work Experience

Web design and technical support at BMW Group
January 1, 2001 - December 31, 2006
Developed intranet applications for BMW; provided web design and user support.
PHP Junior Software Developer at CarCopy
January 1, 2007 - December 31, 2007
Junior PHP development; vehicle management tools.
PHP Software Developer at Unister GmbH
January 1, 2008 - October 31, 2011
PHP/MYSQL development for travel portals; web tooling and customer interfaces.
Senior Software Developer - PHP at bitComposer AG
November 1, 2011 - August 31, 2013
Game portal development; led a team; maintained SOAP interfaces; gaming features.
Software Developer (Freelance) at Freelance
August 1, 2013 - December 31, 2022
Freelance software development across multiple clients, including gaming, web and API work.
Team Lead PHP Software Developer at E.ON / Wipro
September 1, 2020 - December 31, 2022
Powercloud integration; energy industry data processing; invoicing and payments allocations; dunning system; team leadership.
Fullstack Senior Developer (Freelance) at Apleona
May 1, 2020 - September 30, 2021
SafeAtWork CoronaTraceApp; Docker dev environments; security features for banking certifications; database modeling.
Software Developer at matrix GmbH
January 1, 2020 - February 29, 2020
Migration and development tasks; PHP/MySQL based projects.
Software Developer at smart reporting GmbH
March 1, 2020 - December 31, 2020
Database integrations and API work for reporting platform.
Senior Software Developer at Hit Promotional Products
March 1, 2023 - August 31, 2024
Lead development for corporate portal and customer integrations.
Software Developer at GA Foods
September 1, 2024 - March 31, 2026
Ongoing software development; modernization of backend services.

Education

Realschule degree at Realschule
January 1, 1981 - January 1, 1991
Energy electronics specialist at Siemens AG
January 1, 1998 - January 1, 1999

Qualifications

Apprenticeship and certified electronic engineer
January 1, 1994 - January 1, 1998
Certified Network Engineer
January 1, 2000 - January 1, 2001
MCDBA - MS SQL Server
January 1, 2006 - May 13, 2026
Zend Certified Engineer (ZCE) - PHP
January 11, 2030 - May 13, 2026
MCP - Microsoft Certified Professional
January 11, 2030 - May 13, 2026
CNA - Certified Novell Engineer
January 11, 2030 - May 13, 2026

Industry Experience

Software & Internet, Energy & Utilities, Gaming, Travel & Hospitality, Professional Services