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You will get Loan Payments Calculator - Slider with Real Time Payment Calculation
Project details
You will get a loan calculator made with NOUISLIDER to get the loan amount selected by the user with real-time payments for 12,24,36,48, and 60-month financing. The years can easily be adjusted to have different time lengths.
This calculator is just one example of the custom calculator projects that I have done. In my portfolio I have a long littany of custom applications I built, some even integrating the simplicity of Google Sheets as a database to integrate into web apps, others integrating with APIs, Zapier, email, and other systems.
Since my start in '97, I have been building custom applications and intermingling my work in marketing to create systems for building out systems and workflow for hyper-personalized assets which marketers today need in order to get the conversions they desire.
Since 2003, I have published many applications for the marketing arena, some you may even know of by name, some of which are still working to maintain the top page ranks in search for several older clients of mine.
If you need a custom app, heck, maybe even some copywriting and graphic design work too, it's much easier to work with one person instead of coordinating with several.
This calculator is just one example of the custom calculator projects that I have done. In my portfolio I have a long littany of custom applications I built, some even integrating the simplicity of Google Sheets as a database to integrate into web apps, others integrating with APIs, Zapier, email, and other systems.
Since my start in '97, I have been building custom applications and intermingling my work in marketing to create systems for building out systems and workflow for hyper-personalized assets which marketers today need in order to get the conversions they desire.
Since 2003, I have published many applications for the marketing arena, some you may even know of by name, some of which are still working to maintain the top page ranks in search for several older clients of mine.
If you need a custom app, heck, maybe even some copywriting and graphic design work too, it's much easier to work with one person instead of coordinating with several.
Programming Languages
HTML & CSS, JavaScriptCoding Expertise
DesignWhat's included
| Service Tiers |
Starter
$300
|
Standard
$350
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 3 days | 2 days | 1 day |
Number of Revisions | 1 | 1 | 1 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | |||
Source Code |
322 reviews
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This project doesn't have any reviews.
PS
Phil S.
Jun 24, 2025
Contract for first project with tying in the lead sources and bringing that to Google Sheets and perhaps calendar
PC
Pierre-Luc C.
Nov 28, 2024
Transfer of websites to Cloudways
Very good work
KS
Kate S.
May 22, 2024
Add code to push data to Zapier/Brevo
John's work was excellent, and he was very responsive. Unfortunately, something changed when I paused the contract for a couple of weeks, which is my standard practice when I cannot focus on a project. When I restarted the contract, he did not respond. I allowed ample time and made several attempts to contact him. It was out of character, and I became concerned about his well-being, thinking he might have had a mishap. I still wonder why he refused to reply rather than just letting me know he didn't wish to continue, and is the reason for my less-than-5-star rating.
sH
stephanie H.
May 15, 2024
Front end coder needed for a simple page
SC
Sheamus C.
May 6, 2024
Adaptation to Mortgage Calculator
About John
Senior PHP/JavaScript Developer & Technical Writer | Cybersecurity
Camden, United States - 4:52 pm local time
Senior PHP/JavaScript Developer & Technical Writer | Cybersecurity, Fintech & Lead Generation
Overview:
I’m a senior full-stack developer and technical writer with over 25 years of experience building secure, high-performing web applications and persuasive marketing systems.
I specialize in:
Secure Backend Development — PHP 8.4, Slim 4, OWASP-aligned practices, HMAC-based session security, and AI-enhanced security research.
Technical Writing & Proposals — Clear, high-quality documentation, API docs, security proposals, and client-facing content powered by advanced AI tools (Grok + Claude).
Lead Generation & Conversion Systems — End-to-end calculator-style funnels, quoting/estimator tools, automation, and direct-response copywriting that combine strong technical builds with persuasive messaging.
Notable Achievement:
In a previous full-time role, I designed and led development of an automation system that increased both marketing output and production capacity by over 1000%. What used to take staff 90 days was reduced to an overnight automated process.
I’m particularly excited about combining deep technical expertise with modern AI tools to deliver faster, higher-quality results — whether that’s building secure web applications, writing technical documentation, or crafting compelling proposals.
I bring both the ability to build secure systems and the skill to clearly explain them. This combination allows me to deliver complete solutions efficiently, from technical implementation to professional documentation and client communication.
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Revisions may occur after the delivery date.
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