Years of experience: 13

System ArchitectSolution IntegratorWeb DeveloperBackend DeveloperBusiness OwnerIT

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Marek's Career Path
Senior DeveloperJun. 2023 -
Present
BonanzaSenior Developer
United StatesBonanza.com is online marketplace. I'm maintaining existing code, coding new features, integrating 3rd party services. Ruby + Redis + JS + HTML. Big school of working with credit cards (Braintree) and Paypal. I like that each bigger functionality has its tests.
Senior Full Stack DeveloperAug. 2017 -
May. 2023
StaffinoSenior Full Stack Developer
It started with maintaining existing code and UI (Ruby, JS) but later I became head of development for new version of the statistics app which became the main product the Staffino is selling today. I learned a lot about ElasticSearch, its pros and cons, I learned AWS (because I wanted to do things ASAP and not waiting on someone else a week) and later I was able to decrease the monthly costs ...
Front End DeveloperApr. 2016 -
Jul. 2017
GlassIGFront End Developer
BratislavaRSD founded startup called GlassIG. It was offering IG as SaaS. Since this transformation I added coding integration tests in Java to my daily routine.

Marek's Posts

  • 2

    About myself

    With 8 years of intensive coding experience and having served as CTO at Bonanza.com marketplace, I possess a deep understanding of backend development, particularly in Ruby.

  • 2

    Job Description

    Seeking a side job to broaden my skill set and gain new experiences, I am eager to tackle challenging projects that will enhance my expertise and contribute to innovative solutions.

  • 2

    How to contact

No responses yet
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  • 0

    How I can help you

    • Business logic solutions • Performance enhancements • Bug resolutions • Feature integrations • AI implementation • System analysis • DevOps expertise • Broad knowledge • Fast-track to lead roles

  • 0

    People I am looking for

    • Struggling businesses • Need system improvements • Seeking innovation • Cloud migration needs • Performance optimization focus

  • 0

    Experience & Cases

    • Script language for Business Logic App • 30% cost reduction on AWS • 50% cost reduction on Cloudflare • Clients: Bonanza.com, Staffino.com, GlassIG Swiss

  • 0

    How to contact

No responses yet
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  • 0

    How I can help you

    • Develop new features • Fix bugs efficiently • Analyze and enhance performance • Integrate cutting-edge AI • Analyze tasks thoroughly • Propose and implement solutions

  • 0

    People I am looking for

    • Companies like Bonanza.com • Clients such as Staffino.com • Startups seeking growth • Businesses needing expert coding

  • 0

    Experience & Cases

    • Former CTO at Bonanza.com • Led Business Analytics at Staffino.com • Assisted small companies • Supported startups with expertise

  • 0

    How to contact

No responses yet
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