Description

Nikola is a hands-on web developer with in-depth expertise in PHP/MySQL and JavaScript, as well as HTML/CSS. Holding a master’s degree in computer engineering, he has built and maintained high-traffic websites with over 100,000 daily visitors. With extensive freelance experience, Nikola is known as a reliable problem-solver who rapidly adapts to new technologies to meet client needs.

Languages

English
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Infobase
Full-stack PHP Developer
EDUCATION AND E-LEARNING
May 2020 - July 2025 (5 years and 2 months)
New York, NY, USA
¢ Owned the end-to-end architecture of a complex PHP, AngularJS/Angular, and MySQL ecosystem, including the Apache SOLR search
infrastructure.
Orchestrated the strategic migration of the platform to a modern tech stack (React, Next.js, OpenSearch), leading a team of 3 engineers.
Modernized the core PHP runtime, significantly reducing technical debt and resolving critical security vulnerabilities.
Optimized complex reporting datasets, reducing query execution time by 83% (from over 60 seconds to under 10 seconds).
Accelerated the deployment lifecycle by migrating from legacy procedures to a modern GitHub Actions workflow, ensuring consistent and
error-free releases, reducing release time by double
KEY TECHNOLOGIES: PHP MySQL React
PHP React Redis API GitHub
Toptal,
Developer screener
HUMAN RESOURCES
January 2019 - December 2019 (11 months)
New York, NY, USA
Conducted rigorous technical screenings as a domain expert, administering live coding exercises to evaluate candidates' problem-solving
agility, architectural depth, and communication skills.
¢ Evaluated comprehensive test projects (simulating 1-3 weeks of real-world work) to verify practical competence, ensuring applicants could
"walk the walk" in terms of code quality, completeness, and maintainability.
¢ Enforced elite quality standards ("Top 3%"), acting as a primary gatekeeper to ensure only candidates demonstrating the highest levels of
professionalism, integrity, and technical thoroughness entered the network.
¢ Assessed full-stack engineering capability through deep-dive code reviews, filtering for creativity and the ability to handle complex, bespoke
requirements under strict deadlines.
¢ Maintained the integrity of the talent pool by validating that every potential admission met the "Quality-First" benchmark required for
high-stakes enterprise engagements.
The Nielsen Company,
PHP/AngularJS Full-stack Developer
PRESS AND MEDIA
September 2018 - March 2020 (1 year and 6 months)
Warsaw, Poland
¢ Automated critical ETL pipelines from BI clusters to MySQL using PowerShell and ProFTPd, eliminating 30 hours of manual work per week
(6 hours/day) and reducing data entry errors.
¢« Architected a bidirectional synchronization framework using Google Apps Script to bridge MySQL and Google Sheets, prioritizing code
maintainability by centralizing schema definitions.
¢ Engineered a custom internal data application to enrich SQL datasets with external sources, streamlining complex data matching workflows
via custom lookup tables.
« Managed on-premise infrastructure (Windows Server 2012, MySQL, Power BI), acting as the primary technical liaison with corporate IT to
secure network configurations and port forwarding.
PHP MySQL Google Sheets PowerBI

Check out Nikola's experience

Be the first to recommend Nikola

Help this freelancer shine by sharing your experience working together.

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

Baptiste Duhen

Fullstack developer

4.6

(4)

Amed Hamou

Senior Lead Developer

(2)

Audrey Champion

Web developer

4.3

(3)

Signup to reveal

Faculty of Electrical Engineering and Computing

Nikola B.

Senior Backend Architect | PHP ~ Symfony ~ Laravel

About Nikola

Experience

Recommendations

These freelancer profiles also match your criteria

Education

Skill set

Categories