Martynas Stropa
@martynasstropa
Backend engineer at Self-employed building PHP fintech and AI tools, including a chatbot that standardizes freight tenders.
LithuaniaWhat I'm looking for
At Self-employed, I build PHP backend solutions and AI-assisted tools for client projects. My recent work includes a freight tender chatbot that uses embeddings and GPT to turn inconsistently formatted Excel sheets into structured data.
I also built an AI-assisted scraper that processes funding announcements for Lithuania and selected EU programmes, along with a Slack bot that identifies tasks in team messages.
At Tribe Payments, I implemented payment capture logic in PHP for a payment gateway. At Coinspace, I designed the system architecture for a cryptocurrency market aggregation platform and developed backend services in PHP and Node.js.
At KonnektSystems, I co-owned a company building business management systems and CRMs, and led a team of up to six developers. I’ve worked with PHP since PHP 4, mostly on backend and business management systems, and I’m looking for backend-focused work with a progressive, modern team of advanced developers.
Experience
Work history, roles, and key accomplishments
Volunteer
Labdaros ir paramos fondas Saugus Prieglobstis LT
Feb 2022 - Present (4 years 9 months)
Volunteering missions to Ukraine.
Software Developer (Freelance)
Self-employed
Oct 2020 - Present (6 years 1 month)
Freelance PHP backend development and AI integration for client projects, including building LLM-powered tools across OpenAI, Claude, Gemini, and local models.
Senior Developer
Tribe Payments
Jun 2020 - Oct 2020 (4 months)
Backend developer on a payment gateway, implementing payment capture logic in PHP.
System Architect
Coinspace
Apr 2018 - May 2020 (2 years 1 month)
Designed system architecture for a cryptocurrency market aggregation platform and developed backend services in PHP and Node.js, including local Ethereum nodes and smart contracts.
Freelance Software Developer
Self-employed
Feb 2017 - Apr 2018 (1 year 2 months)
Web and CMS/e-commerce client work including WordPress, Magento, PrestaShop and add-ons.
Backend Developer
BAA Training
Jul 2015 - Feb 2017 (1 year 7 months)
Developed backend APIs in PHP (Zend Framework) with MySQL and NoSQL in an Agile team using TDD.
Senior Developer & Co-owner
KonnektSystems
Jul 2012 - Jun 2015 (2 years 11 months)
Co-owned a small company building business management systems and CRMs for call centers, recruiters, and business owners. Led a team of up to 6 developers and was responsible for solution design and server maintenance.
Software Developer
JSC Infoneta
Jan 2011 - Dec 2012 (1 year 11 months)
Developed websites and e-shops using PrestaShop, Magento, WordPress, and Joomla.
PHP Developer
Enigma Software Group
Jan 2008 - Dec 2011 (3 years 11 months)
Worked on data collection and aggregation, database design and optimization, and website development.
Education
Degrees, certifications, and relevant coursework
Kaunas University of Technology
Bachelor's degree, Information Technology
2007 - 2011
Bachelor's degree in Information Technology from Kaunas University of Technology, completed in 2011.
Google AI Fundamentals, Artificial Intelligence
Completed the Google AI Fundamentals course.
Availability
Location
LithuaniaAuthorized to work in
Salary expectations
Social media
Job categories
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