Custom Web Application Development Company

From online banking web applications to customer portals, web dashboards, ERP web applications, and more, any business needs web applications these days. Want to build a custom web application like Canva, Pinterest, Netflix, Uber, or Spotify, but for your business? We're the team for you! Our top-notch development teams will work closely with you to translate your needs into successful web products.

Full-cycle custom web app development company

As a full-cycle custom web applications development provider, we've delivered to our clients scalable, responsive, and high-performance ERP, CRM, marketplace, internal dashboards custom web applications from scratch, covering all the phases of the development process including ongoing support, and maintenance. With an Agile implementation, we ensure that the final product solves your business needs and outperforms your expectations.

Dedicated team for custom web development

We value when our clients trust our expertise and knowledge of the market to form remote dedicated development teams for custom web app development. We're proud of how our custom web development dedicated teams perform and deliver at their best for our clients. By onboarding our Eastern Europe dedicated team for custom web development, our clients enjoy a major benefit - a proven track record of delivering high-quality web development projects.

Why Oneest for custom web app development?

On top of all, with us you'll find people that easily understand how your business processes work. We'll help you engineer the right solution for your challenge which will serve your company for many years to come.

  • A demonstrated experience in building custom web applications, over 30 web apps in our portfolio

  • Various industries knowledge - automotive, retail, HR, accounting, legal, media, sports, telemarketing, and many more.

  • We have exactly what you need to build successful custom web applications - highly skilled software developers, designers, and product managers

  • We work with top technologies and tools in front-end, back-end, cloud and DevOps

  • Driven by Agile and Lean methodologies, we work closely with our clients to understand their requirements and goals, and create scalable products offering exceptional experience to the users

Your Custom Web App Development Team in Eastern Europe

Our strategic localization in Eastern Europe allows us to be cost-efficient for our clients. But we think this isn't the main reason you should hire us as a custom web development team in Eastern Europe. Our engineers, designers, and product managers have a great reputation in the area for being very skilled, committed, and caring about the impact of the products we deliver. Our cultural compatibility and time-zone advantage allow us to have great collaboration with our 100% international clients.

Proven experience in successfully delivering custom web applications

Content Management System (CMS) applications, ERP application for human resources management, CRM system application, company dashboard application, online web platform for client-company interaction, secure documents exchange applications, and many more in our portfolio.

Your reliable partner in custom web app development

Our process in custom web application development from scratch covers all the phases in the product development lifecycle, from requirements gathering and research to maintenance and support. 


1. Product Discovery for a custom web application development starts with an exhaustive analysis of the business processes and needs. At the end of this stage, preliminary estimates of the budget and timeline are provided. 
2. Creation and validation of UX/UI Design
3. Front-end & Back-end web application development
4. Manual & Automation QA to ensure the web application runs as expected
5. Custom web application Deployment and gathering real user feedback
6. Ongoing Monitoring & Support of the web application   


If you want to take your business to the next level with a custom web app, contact us to learn more about our services and how we can help you achieve your business tasks.

Looking for a reliable software partner?

Work with experts who know both business and technology

Need more? Read Our Case Studies

Go To All Projects →

A platform that offers live sports scores, fixtures, and results

A user-friendly platform that offers easy access to football and tennis live scores, fixtures, and results available on more than 2000 tennis competitions, and more than 650 football leagues, cups, and tournaments, from major tournaments and leagues all the way to amateur competitions.

Tech stack:

An aggregator in the field of telecommunications and telemarketing

Hato is a startup created for small and medium businesses that want to expand their range of services or markets and why not offer customer support with the help of call center departments that can create online with agents from around the world.

Tech stack:

Hire us to build you quality software

What will happen next?

1. You get contacted by our BDE in less than 24h 

2. As soon as the NDA is signed, we kick off the project discussion

3. Challenge accepted! A dedicated team of seniors in custom software development evaluates your requirements and recommends the optimal ways to transform your idea into real functional software

Eugenia Surucinski

Business Development Executive

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