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Olga LesniakOL
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Olga Lesniak

@olgalesniak

WordPress Full-Stack Developer at TRIARE who shipped a production SCHUFA verification integration using OAuth 2.0 over mutual TLS.

Ukraine
Message

At TRIARE, I deliver custom WordPress websites and features for international clients, from design handoff through production release and ongoing support. I own feature work end to end, including clarification, estimation, implementation, and post-release fixes.

For a German energy supplier's onboarding platform, I implemented a production SCHUFA business-verification integration using OAuth 2.0 client credentials over mutual TLS. I also automated a weekly SFTP blacklist CSV import into WordPress.

On an apartment booking platform, I integrated availability data from ResHarmonics PMS and a client-provided microservice, then developed search and filtering with asynchronous availability checks. I also customize WooCommerce checkout and shipping, and troubleshoot production issues involving hosting, caching, and plugin conflicts.

Experience

Work history, roles, and key accomplishments

TR
Current

WordPress Full-Stack Developer

TRIARE

Jan 2020 - Present (6 years 10 months)

Delivered custom WordPress websites and features for international clients, owning features end to end from estimation to release. Implemented custom PHP business logic, third-party API integrations, and JavaScript interfaces, and provided ongoing support and troubleshooting.

Education

Degrees, certifications, and relevant coursework

BU

Bohdan Khmelnytsky Melitopol State Pedagogical University

Master of Science, Computer Science

2020 - 2021

Pursued a Master of Science in Computer Science, completing the program in 2021.

BU

Bohdan Khmelnytsky Melitopol State Pedagogical University

Bachelor of Science, Mathematics

2016 - 2020

Completed a Bachelor of Science in Mathematics, graduating in 2020.

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