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NIX: Your Full-cycle Web App Development Company

With 30+ years in web development across industries, NIX has accumulated vast experience in building accessible, high-load-resistant, and secure web applications. Powered by AI, ML, BI, and other progressive technologies, our solutions help you accomplish your goals—whether it’s simplifying business processes, synchronizing data, or personalizing customer experiences.

Our web application development services encompass the entire tech solution life cycle—from deep business audit and roadmap creation to seamless release and ongoing support. We incorporate a low-code approach, test automation, AI tools, and CI/CD practices in our software development life cycle (SDLC) process to ensure resource savings and faster delivery. 

Our Track Record

20+

Years of Web Development Experience

1700+

Web Projects delivered

1200+

Web Experts

500+

Satisfied Clients

95%

Customer Satisfaction Rate

78%

Industry Customer Satisfaction Rate

Types of Web Applications We Build

Custom Web Applications

Within web app development services, we create fully tailored solutions based on customized implementation strategies that fit your budget and timeline. The goal is to deliver a user-oriented and functional web app that meets all your requirements and complies with industry standards. To this end, we work closely with you and use proven methodologies, ensuring transparent communication throughout the project. Our deep expertise and experience across technologies make us flexible and adaptable to evolving needs, able to deliver long-term business value.

Web app development services

SaaS Applications

NIX leverages cloud-based technology to build scalable SaaS solutions for B2B, B2C, B2G, and B2E markets. Going beyond basic web applications, we focus on constructing agile, multi-tenant web platforms, engineered to optimize operational efficiency within your organization. With our expert assistance, you can transform your innovative concept into a dynamic, subscription-based growth engine, establishing a solid foundation for recurring revenue streams.  

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Web app development services

Progressive Web Apps

Our experienced web application development company creates flexible progressive web apps (PWAs) that help you engage your target audience with lightning-fast, installable experiences that function flawlessly across all devices, from smartphones to desktops. Fusing the accessibility and reach of the web with the immersive performance of native mobile applications, these solutions reduce friction and offer a budget-friendly alternative to a costly native approach. 

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Web app development services

Cloud-Based Web Apps

NIX experts build cloud-native web apps that scale with demand and reduce your operational burden. Leveraging modern DevOps practices and microservice architecture, we ensure continuous delivery, performance, and availability. As a custom web application development partner certified by Google, AWS, IBM, and Microsoft, we offer clients exclusive cloud benefits while still supporting alternative cloud platforms if preferred. Our solutions remain cost-effective, adaptable, and high-performing in any environment.

Web app development services

CMS Solutions

Our web app development services include CMS-based solutions that support your content strategy and business goals. This way, we can launch web apps faster and more economically, cutting your costs by up to 40% and enabling 50% quicker content publishing. Whether you need a marketing site, client portal, or internal knowledge base, our CMS-based applications reduce administrative effort and allow your team to manage digital assets more efficiently, without technical overhead.

Web app development services

Minimum Viable Product Web Apps

We offer minimum viable product (MVP) development to accelerate time to market and minimize potential risks. With this approach, you can validate your concepts early and gather valuable user insights through the creation of focused, functional prototypes. Built under our web app development services, MVPs now benefit from AI-supported SDLC practices that reduce development time. This helps optimize investment, eliminate unnecessary features, and allow faster scaling—laying the groundwork for strategic product growth.

Web app development services

Web Portals

Our team has proven experience developing powerful and robust web portals for different domains, from healthcare to education. We create flexible web systems that provide multiple users with all the needed capabilities for smooth and efficient operation around the clock. Focused on high-load resistance, security, and user-centricity, our solutions are convenient to use and promptly scale with business growth. 

Web app development services

Technologies We Use

  • Front End

    Deliver responsive, accessible, and visually consistent user experiences across devices and ensure fast performance and seamless interaction with our expert front-end approach.

  • Back End

    Make your web application run smoothly with secure, scalable, and high-performing server-side logic based on proven back-end technologies and robust, powerful architectural design.

  • Cloud Platforms

    Leverage our expertise to deploy your web application on your preferred cloud platform. As partners of AWS, Azure, IBM, and GCP, we offer additional benefits while building optimized cloud systems tailored to your scale, budget, and workload.

  • AI & ml

    Generate additional value and make smarter business decisions by integrating features that adapt to behavior, automate actions, and generate predictions—all powered by our intelligent, self-learning models.

  • Data Science

    Turn raw data into business insight by using smart dashboards, real-time reports, and analytical tools to monitor trends, understand customer behavior, and guide strategies.

  • Internet of Things

    Empower your infrastructure with innovative IoT solutions, which result in more advanced web app features such as remote device management, real-time tracking, secure remote access to crucial data, and more.

Benefits of Choosing NIX as Your Web
App Development Partner

  • Client-centric Focus

    Every solution is tailored to your unique industry, business goals, and users. With our web application development services, you get software that solves your real-world challenges.

  • Built-in Cybersecurity

    Security is a core part of our custom website development services and delivery process. We integrate DevSecOps, CloudSecOps, and pen-testing practices to build systems that are resistant to evolving cyber threats.

  • Reduced Time-to-market Focus

    We accelerate delivery by combining low-code development, automated QA, advanced AI tools, and more across the SDLC, resulting in faster, reliable product launches.

  • Unwavering Commitment

    We treat each project with ownership-level dedication, delivering stable, high-quality results that uphold our reputation as a trusted partner in web development services.

  • Transparent Collaboration

    Our team builds a clear project structure with status reports, visible roadmaps, and a dedicated PM who ensures alignment between your business and our web app development company.

  • Future-proof Solutions

    Our web app solutions are designed to scale and adapt. By leveraging modern tech stacks and best practices, we ensure your software grows with you and remains relevant to market needs.

Need Expert Help With Your Web App?

Talk to us today   

Web Application Security Practices

Security is built into every stage of our delivery process. Our teams follow secure coding standards, implement DevSecOps practices, and perform regular vulnerability assessments and penetration testing. We also align with industry-recognized frameworks—including SOC 2 and OWASP—to ensure our systems meet enterprise-grade compliance and data protection requirements.

As part of our web application development services, we embed security controls at the architectural level and continuously monitor risks throughout the SDLC. This includes role-based access, data encryption, secure API gateways, and cloud security hardening. With these measures, we ensure your application is protected against evolving threats—without compromising performance or scalability.

Industry-Specific Web Applications

NIX has many years of successful experience creating web apps that meet specific industry standards, such as HIPAA, PCI DSS, GDPR, or other regulatory requirements.

  • Healthcare

  • Marketing and advertising

  • Pharmaceutical

  • Manufacturing

  • Financial and banking

  • Education

  • Insurance

  • Nonprofit and charity

  • Retail and e-commerce

  • Telecommunications

  • Logistics & delivery & supply chain

  • Publishing

  • Real estate & property management

  • Social networks & communications

How to Get Started: Our Web Application Development Process

When providing our web app development services, we always strive to fully adjust our flow to the format of collaboration that’s comfortable for you. In doing so, our team focuses on process transparency, efficiency, and meeting your goals.

1

Discovery Phase 

We start with the discovery phase, where our business analysts and solution architects examine your goals, pain points, and existing systems. The NIX team defines technical and business opportunities, proposes viable product strategies, and ensures every decision directly aligns with your priorities and meets real needs. This way, we lay the groundwork for seamless project delivery and compliance with all deadlines.

Deliverables: Requirements summary, business case, solution proposal, scope outline.

2

Wireframing and Planning

The solution architect turns the agreed-upon vision into a system structure while UI/UX designers create wireframes and interface logic based on user behavior. We shape a scalable architecture, plan for product growth, and choose technologies for further custom web application development. We also define project boundaries and map out risks to ensure stable delivery and successful future scaling.

Deliverables: Wireframes, system architecture, tech-stack plan, delivery roadmap

3

Custom Web Application Development

After UI/UX concept approval, cross-functional teams start development in sprints. Front-end and back-end engineers turn designs into functional features, while our PM manages tasks, budgets, and priorities to ensure everything stays on track and aligned with your evolving business objectives. Throughout the cycle, we focus on stability, performance, and long-term maintainability.

Deliverables: UI kit, Source code, Sprint reports, Functional modules

4

Quality Assurance

Our QA engineers are involved from day one, working side by side with web app developers. Applying a Shift Left approach and combining automated and manual testing, they check whether the web platform works as intended and meets all requirements in various use cases. Their early involvement accelerates delivery, reduces risks, and guarantees the polished final product launches on schedule.

Deliverables: Test plan, test cases, bug reports, regression suite, security audit

5

Cloud Migration

Experts at our web app development company analyze your infrastructure and prepare for a smooth transition to the cloud platform that best aligns with your operations. We develop a cloud architecture tailored to your scale, budget, and workload, ensuring availability, cost optimization, and stable performance. Our goal is to build scalable, resilient, and highly secure environments that help you grow your business as needed.

Deliverables: Cloud migration plan, architecture blueprint, deployment scripts, uptime strategy

6

System Integration

Our web app development company integrates your solution with internal services and third-party platforms like CRMs, CMSs, ERPs, and payment providers to create a smoothly functioning and fully synchronized ecosystem. The key to this step is ensuring seamless data exchange, API compatibility, and workflow stability to support end-to-end operations with zero disruption for your business or security risk.

Deliverables: Integration map, API specs

7

UI/UX Enhancement

When user feedback or analytics expose friction points, we rework interface elements to improve clarity, flow, and accessibility, which are crucial for complex multifunctional web systems. These enhancements free up valuable time, reduce the onboarding period, improve task flow, and deliver more value to users—whether employees, customers, or partners interacting with your system.

Deliverables: UX audit, revised UI elements, accessibility improvements, usability report

8

Performance optimization

Within our web app development services and as part of the implementation process, we evaluate system behavior under load and identify root causes of slow response times, instability, and resource waste. Our specialists finely tune every layer, including the back end, front end, and infrastructure, to ensure your web solution performs reliably even under peak usage conditions and supports the most demanding users.

Deliverables: Performance audit, load test results, tuning logs, bottleneck analysis

9

Launch, Support, and Enhancements

After a successful web solution release, we can leave part of our engineering team for post-delivery support—which includes troubleshooting, tech audits, and other activities—to keep everything running at high capacity. If necessary, we further scale the project to ensure you lead the market and perform your business cost-effectively with minimal overhead.

Deliverables: Release checklist, support plan, enhancement backlog, monitoring setup

Relevant Case Studies

We really care about project success. At the end of the day, happy clients watching how their application is making the end user’s experience and life better are the things that matter.

View all case studies

Cloud Solution with Multi-layer Microservice Architecture

Internet Services and Computer Software

Manufacturing

Success Story Cloud Solution with Multi-layer Microservice Architecture image

Blockchain-based Platform for Monitoring Drug Quality

Pharmaceutical

Success Story Blockchain-based Platform for Monitoring Drug Quality  image

Device Management Solution for Fortune 500 Company

Internet Services and Computer Software

Manufacturing

Success Story Device Management Solution for Fortune 500 Company image

vSentry—AI Web App for Vehicle Monitoring

Cybersecurity

Electronics

Success Story vSentry—AI Web App for Vehicle Monitoring image

Voice Recognition Platform for Feedback Exchange

Oil & Gas

Mining

Success Story Voice Recognition Platform for Feedback Exchange  image

AWS-based BI Platform for Marketing Insights

Marketing & Advertising

Success Story AWS-based BI Platform for Marketing Insights image
01

What Our Clients Say

Jeremy Reither photo

Jeremy Reither

Consultant & Advisor at DemandSide

Matthew Brown photo

Matthew Brown

VP of Engineering at Elsevier

Buzz Sharifi photo

Buzz Sharifi

Account Manager at TransGrade, CRM

Christian Rohner photo

Christian Rohner

Project Manager at Information Products AG

Jeremy Barron photo

Jeremy Barron

Senior Director of Engineering at Premier

Craig Burris photo

Craig Burris

Director of Operations at CarSoup

Jason Scalvini photo

Jason Scalvini

Senior VP of Technology

Ilya Kottel photo

Ilya Kottel

VP R&D at HumanEyes

Noam Shalit photo

Noam Shalit

COO at SafeRide Technologies Ltd

Steve Berardelli photo

Steve Berardelli

Sr. Director of Engineering for MindTap

Moody Heard photo

Moody Heard

Co-Founder at Buildforce

Mike Ortner photo

Mike Ortner

President at Ortner Enterprises DBA North Two Five

Mark DeJarnatt photo

Mark DeJarnatt

Chief Technology Officer at Sparkle Stories LLC

Eric Spear photo

Eric Spear

SVP of Engineering at Cengage

Eve Epstein photo

Eve Epstein

CEO/Founder at SoleVenture, Inc.

David Stutzman photo

David Stutzman

President of Conspectus, Inc

Dave Kochalko photo

Dave Kochalko

Co-Founder & CEO at ARTiFACTS

Kevin Lee photo

Kevin Lee

Co-Founder

Norman Thiem photo

Norman Thiem

Owner, N2 Plus

Ariel Orbach photo

Ariel Orbach

Co-Founder & CTO

Anonymous photo

Anonymous

CTO, Real Estate Firm

Anonymous photo

Anonymous

Founder & HOP, Fitness Space Rental Platform

Anonymous photo

Anonymous

CTO, Color My Life, Inc

Anonymous photo

Anonymous

Department Head, Fignum Limited

Troian Dmytro

Dmytro, a seasoned web development leader at NIX, leverages his technical and strategic expertise to deliver tailored web solutions and guidance.

Head of the Web Department

Dmytro, a seasoned web development leader at NIX, leverages his technical and strategic expertise to deliver tailored web solutions and guidance.

Yuliia Semerenko

Yuliia delivers IT consulting for pharma and health-tech, focused on integrating technology and medicine to improve patient outcomes.

Software Solutions Consultant

Yuliia delivers IT consulting for pharma and health-tech, focused on integrating technology and medicine to improve patient outcomes.

01

FAQs on Web App Development

01/

What are web app development services?

Web app development services include designing, building, testing, and maintaining web-based software tailored to business goals. They cover everything from MVPs to enterprise systems and are ideal for creating scalable digital solutions.

02/

How much do web application development services cost?

Web application development services vary in cost depending on complexity, features, and timelines. A basic solution may start with a relatively small budget, while enterprise-grade systems usually require larger investments. Pricing is also affected by the model of engagement, whether it’s end-to-end development, fractional CTO, IT support, or something else.

As a full-cycle, custom web development company, NIX offers flexible pricing models and accurate estimates based on your business goals and technical complexity.

03/

How long does it take to build a web application?

Timelines depend on your project scope. A simple MVP may take 6–8 weeks, while a full-featured web-based solution needs several months or more. A web app development firm typically offers phased delivery for faster time to market.

At NIX, an experienced web app development agency, we always go the extra mile to meet your deadlines.

04/

Can you provide web application development services in my time zone?

Yes. As a global web application development company, we align our workflows with your time zone for smooth communication and efficient delivery. Our flexible engagement models support global clients across industries and time differences. Our experience is confirmed by 3500+ projects with different clients all over the world.

05/

Do you provide maintenance and support within your web application development services?

Yes, our web application development services include long-term maintenance, performance tuning, security updates, and support. Whether it’s practice management systems or complex platforms, our web app developers ensure reliability and continuity after launch.

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