Oleksii K.
Clearwater, FL
100%
Job Success
Top Rated Plus
GIS, data visualization, CMS, HIPAA, Web/Windows full-stack dev
$85.00/hr
Only if you prefer quality and value proactivity.
Willing to take long term projects (3+ months) at lower rate (although this may depend on the project).
Looking for long-term part time job during the number of hours per week your business can afford (e.g. 10, 20 or 30 hours/week). Willing to solve urgent tasks submitted in Monday, Asana, Slack (or another PM software) parallelly working on continuous improvements (e.g. security or usability improvements) or new developments for your primary project during remaining number weekly allocated hours.
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I am your guarantee of 100%+ completed tasks. I’m expert in Web programming with 30+ years of experience. I always focused on implementing the best engineering practices to optimize and automate processes and increase efficiency. My goal as a programmer — to automate everything as much as possible, implementing intuitive and friendly interfaces and ways of communication between humans and machines. I believe that humans should do only creative work, the routine can be done by programs and robots. I strive to complete everything ever started, not dropping on half way. Autonomous and communicative, always very proactive.
Skills: Web application development (both front and back-ends) and System application development for Windows, MacOS, Linux and mobile devices (iOS and Android).
Secondary skills: I can do DevOps job, set up CI/CD workflows and automation scripts, create browser extensions, Telegram bots, have some design skills with Adobe Illustrator and AfterEffects.
Programming Languages: JavaScript/TypeScript (React/Redux, Node.js+Express.js), GoLang, PHP, Perl.
Native system app programming in Delphi and C++ Builder. Some experience with Java, C/C++, C#, Vue.js.
And of course, HTML/XML, CSS (Sass, Scss, fav CSS framework is Bootstrap, fav components library is MUI).
Databases: MySQL/MariaDB, PostgreSQL, MS SQL, SQLite, MongoDB, Interbase
HTTP servers: Nginx, Apache, ISS.
Cloud Platforms: AWS, GCP (certified in 2018), Azure, Digital Ocean.
CMS, CRM, APIs and integrations: WordPress/WooCommerce, ShopSite, SnipCart, SimpleTix (tickets), GIS / mapping (MapBox, Leaflet.js, OpenLayers), marketing CRMs (HubSpot, Zoho, Klaviyo), Twilio, BigMailer, Meta/Facebook, Bing, full set of Google APIs (incl. Google Analytics), Mixpanel, DocuSign, UPS API, Stripe, PayFlow etc.
Security: PCI and HIPAA compliance.
Git & workflows: GitHub, GitLab, BitBucket, Beanstalk.
I prefer working with Cloud services (the most experience with AWS and GCP, some with Azure). For CI/CD workflows I prefer Azure DevOps, although I also have experience with GitLab and GitHub+Netlify.
Also, although I’m focusing on software development, I have good design skills, can create user interfaces from scratch and draw vector graphic in Adobe Illustrator, etc. And if you need an old school developer, I do low-level Windows/DOS programming in Assembly language too. And can support and update legacy web-applications written in Perl.
I am the author of AppControls and DiskControls packs, 2 popular sets of the VCL components for Delphi and C++ Builder (google for AppControls).
Significant periods in my career:
2019 — 2024: freelancer + support, maintenance & couching for past projects (after moving to the USA in 2019)
2007 — 2018: Full Stack Web Architect + Team Leader. Founder and CEO in a small B2B-opriented business operating at the intersection of IT and brand marketing. Public opinion research with gamification. 500+ clients including Microsoft, Samsung, Asus, Mazda, P&G, J&J, Amway, Bayer etc.
1999 — 2007: Windows and Web programmer (Delphi, C++ Builder + various SQL databases + some backend web development in Perl and PHP). Remote work on US companies TeknoSurf. Advertising.com (acquired by AOL) and others.
1995 — 1999: Windows programmer for INET LLC (Kyiv, Ukraine). Energy saving and energy metering systems, development of automated workstation for energy dispatcher.
1992 — 1995: DOS programmer (Turbo Pascal and Assembly language), student’s part-time job.
Work history
Work history
Developer
May 1, 2024
-
Aug 25, 2024
5.00
Private earnings
Mapbox Development.
Jan 7, 2021
-
Jul 23, 2024
5.00
"Oleksii was great to work with. He consistently met the milestones he promised and maintained excellent communication throughout the project. He was extremely professional in identifying potential conflicts with the…
Private earnings
Developer needed for creating an interactive mapping WordPress site
Jan 5, 2021
-
Jul 20, 2024
No feedback given
Private earnings
Web Development Work In PHP On Various Sites
Nov 14, 2021
-
May 31, 2023
5.00
Private earnings
Custom City Map (Poster)
Feb 18, 2021
-
May 5, 2023
No feedback given
Private earnings
Simple GIS dashboard (urgent)
Aug 17, 2020
-
Jan 2, 2023
No feedback given
Private earnings
Multi website and backend database system
May 7, 2022
-
Oct 19, 2022
4.70
Private earnings
Upgrade online website report with dynamic charts & graphs
Mar 10, 2022
-
Sep 9, 2022
No feedback given
Private earnings
Delphi Win32 API Expert Needed For Consultation And Peer Programming
Jun 1, 2020
-
Nov 9, 2021
5.00
"Professional."
Private earnings
Rapid Web site Prototype
Oct 21, 2020
-
Nov 5, 2021
No feedback given
Private earnings
Part-Time Leaflet.js developer to enhance web-based mapping application
Sep 30, 2024
-
Present
Job in progress
Private earnings
Pull Data from FTP, Parse, and Send Offline Conversions to Google Ads and Bing Ads
Sep 21, 2024
-
Present
Job in progress
Private earnings
Mapbox API adjustments
Aug 14, 2024
-
Present
Job in progress
Private earnings
Middleware Development for UPS shipping vendors
Jul 27, 2024
-
Present
Job in progress
Private earnings
Customize a HTTP/HTTPS proxy tunnel program from source
Nov 6, 2022
-
Present
Job in progress
Private earnings
React JS Support
May 26, 2022
-
Present
Job in progress
Private earnings
react chart work
Mar 16, 2022
-
Present
Job in progress
Private earnings
react chart work
Mar 11, 2022
-
Present
Job in progress
Private earnings
Ongoing PHP Dev Work
Mar 9, 2021
-
Present
Job in progress
Private earnings
Javascript Developer Required
Nov 25, 2020
-
Present
Job in progress
Private earnings
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Skills
Skills
- API Integration
- WordPress Development
- Web Application
- Scripts & Utilities
- Mapbox
- Database