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You will get a reliable integration connecting your systems, APIs, and tools

Sven J.Status: Offline
Sven J. Sven J.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Sven, priced and ready to go.
Sven J.Status: Offline
Sven J. Sven J.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Sven, priced and ready to go.

Project details

You'll get a rock-solid integration between your systems, built by a freelance developer with 15+ years of experience in Next.js, React, and Node.js — including work for banking and other regulated clients where data integrity and error handling matter. I design the sync logic to fail safely, log clearly, and recover from interruptions, so you're not left guessing when something goes wrong. I handle the entire build myself, stay available for questions during development, and document the integration so your team can maintain it after handover.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Performance Optimization, Security
What's included
Service Tiers Starter
$650
Standard
$1,500
Advanced
$3,000
Delivery Time 5 days 10 days 20 days
Number of Revisions
123
Design Customization
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Content Upload
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Responsive Design
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Source Code

Frequently asked questions

Sven J.Status: Offline

About Sven

Sven J.Status: Offline
Senior Next.js & Node.js Developer | 15+ Yrs Exp | SaaS & MVPs
Haarlem, Netherlands - 6:11 am local time
I bring over 15 years of experience as a Tech Lead and Full Stack Developer, specializing in creating scalable digital products that users love. My expertise spans from transforming complex technical challenges into seamless solutions to implementing innovative AI features and building groundbreaking applications from the ground up. I excel in leading development teams and driving projects that require a deep understanding of both front-end and back-end technologies. Whether you need to scale your application to accommodate millions of users or develop a new product that stands out in the market, I deliver results with clarity and precision. Let’s connect to discuss how I can turn your vision into reality and help your business thrive.

Steps for completing your project

After purchasing the project, send requirements so Sven can start the project.

Delivery time starts when Sven receives requirements from you.

Sven works on your project following the steps below.

Revisions may occur after the delivery date.

Discovery & access

Review the systems involved, confirm the data flow, and get API/access credentials.

Integration design

Map the data flow, define error handling, and plan the sync/webhook architecture.

Review the work, release payment, and leave feedback to Sven.