Custom Software Development

Custom Software Development Company

We develop secure, high-performance custom software development solutions to meet the modern business needs of startups and large-scale operations.

Trusted By 50+ Global Brands & Startups

Accomplish Business Goals with Custom Software Development Services

We enable businesses to achieve sustainable growth and long-term partnerships by providing custom software development services that optimize workflows and keep everything organized end-to-end.

Custom Software Consulting

We offer consulting services to clear your doubts and resolve any confusion about an idea, and deliver digital solutions that bring your vision to life, eliminating the business hurdles that could hinder your success.

Custom Software Development

We don’t let your needs be compressed into generic features; we exceed your expectations with exclusive products. We offer custom software development services to design architectures that scale as operations grow.

Custom Software Product Development

We prioritise feasibility, flexibility, and future growth, making the product a perfect fit among your competitors. Instead of creating doubt, our custom software developers validate the success, enabling large adoption.

Custom Web App Development

We build responsive web applications that load without lag on any device. Whether it's a tablet, smartphone, or desktop, content quality and performance don't affect the organization's operations.

Custom Software Consulting

Custom Software Development

Custom Software Product Development

Custom Web App Development

We build responsive web applications that load without lag on any device. Whether it's a tablet, smartphone, or desktop, content quality and performance don't affect the organization's operations.

Enterprise Software Development

We lift the load for large businesses by identifying gaps in enterprise custom software solutions that business owners want. Eliminate the business gaps, driving efficiency, providing specific tools to work across cross-functional teams.

Cloud-Based Software Development

We build cloud-based software products that integrate robust authentication and authorization. These are accessible on any device from anywhere, so work isn't impacted, and teams can access system data securely.

Software Integration Services

With our software integration services, we enable businesses to optimize their core operations by integrating platform-specific functionality, unified systems that process data faster. Thus, the business can function beyond the general operation.

Enterprise Software Development

Cloud-Based Software Development

Software Integration Services

Streamline Business Operations with Custom Software Solutions

We, as software development service providers, are empowering modern businesses with scalable, secure, and standard digital products. Investing our time and technical efforts to manage manual workflows.

Business Process Automation Solutions

We remove the exhaustion caused by manual work. Modifying workflows to automate with AI/ML-powered software solutions to fulfil time-consuming tasks, improving productivity.

Validate Your Idea with a Scalable Software Solution

Turn your idea into a working solution, test it in real scenarios, and improve it based on what actually works.

Validate Your Idea with a Scalable Software Solution

Turn your idea into a working solution, test it in real scenarios, and improve it based on what actually works.

Engineering Excellence across Our Portfolio of Global Digital Products

If you are unsure whether to hire us as a custom software development company, we are showcasing our work across diverse industry verticals to reassure you.

Web

Backend

Admin

PWA

Analytics

Go Rally

Enabling 110m Indians to Be Sports Ready

Gorally platform serves as a comprehensive platform for pickleball enthusiasts in India. It allows users to book courts, join games, and participate in events and tournaments across their centers. The platform also offers information on coaching programs led by expert trainers and provides access to high quality pickleball equipment.

See case study

Web

Android

IOS

Desktop

Cloud

Analytics

Famo

Revolutionizing how families manage their cluttered investments, all in one streamlined platform.

Famo is a SaaS platform designed to help family offices centralize and manage their investment data from multiple sources, including equity, mutual funds, PMS, debts, real estate, rentals, venture capital, gold, and collectibles. By consolidating this data, Famo enables families to monitor portfolio performance in real time and make faster, data- driven decisions without depending on manual inputs from accountants. Its Al powered summarization feature simplifies complex insights, helping users evaluate opportunities like startup investments more efficiently.

See case study

Web

Android

IOS

Cloud

Analytics

Enterprise

Navan

Experience the all-in-one travel and expense platform

Navan is an all-in-one platform designed to streamline corporate travel and expense management. It offers businesses a unified solution to book travel, manage expenses, and enforce policy compliance, all within a single, user-friendly interface. Navan platform ensures that all bookings and expenses adhere to company policies, with real-time compliance checks and automated approval workflows.

See case study

Web

Backend

UI/UX

Performance

Scaliblity

Scrut Automation

Delivering AI powered compliance automation built on a security first foundation.

Scrut Automation helps companies achieve and maintain multiple compliance standards, including SOC 2, ISO 27001, GDPR, PCI DSS, HIPAA, and NIST AI RMF. Their platform centralizes policy management, compliance frameworks, cloud integrations, and vendor details to ensure security across the organization. It also enables seamless collaboration with auditors, streamlining evidence collection and accelerating the audit process.

See case study

Innovation By Modern SoftwareTechnologies

Our custom software development team not just builds but stir innovation and drives transformation, exploring the evolving trends and technology.

Artificial Intelligence

Accessing the potential of Artificial Intelligence across our custom software solutions, which reduces the chances of frequent errors and enables the software to generate output faster with utmost precision.

Big Data

Unfiltered, unsorted information makes it harder to make the right decisions, thus building solutions to organize things and analyze predictions from large data organizations.

Internet of Things

Building sensor-driven custom software to get control over every ordinary task, enabling humans to operate by humans and live their lives comfortably, accessing them from remote locations.

Computer Vision

Amplifying business intelligence utilizing computer vision to recognize modern business objects like images and videos and their patterns, and develop smart software.

Blockchain

We build decentralized custom software solutions, including smart contracts, e-wallet apps, supply chain monitoring & management systems, data management systems, and identity verification systems, to establish trust with the utmost transparency.

Hire our Custom Software Developers for Immediate Development

We build custom software products that fit the niche, blend tech expertise, and align with business logic. Our dedicated software developers build functional products, problems get resolved, and workflows improve, delivering sustainability to the business.

Our team adopted a modern technology stack (React, .NET, Python) and a cloud-based environment (Google Cloud, AWS), along with AI integration (Gemini, OpenAI), to build a robust architecture.

From startups to large brands, they believe in our custom software development company and partner with us for our agile software development approach, work ethic, transparency, and reliable deliverables. So if you have any idea that needs consultation from our scalable engineering team to build from scratch, we are the right fit.

Build Custom Software That Fits Your Business Perfectly

Need software built around your business? We help you turn your idea into a solution that works the way you need and grows with you.

Shaping Digital Custom Software Development Solutions for Industry With Niche Expertise

We are passionate about changing how your business works through our technology brilliance, delivering the best cloud software solutions that let your business function without blockers.

Discuss Your Industry Requirements

Product Engineering Technologies We Excel

Don't hesitate to hire our software developers, who thoughtfully choose the tech stack and are comfortable catering to the needs of diverse niches, understanding the specific requirements.

Request for Quotation

Engagement Models That Fit Your Business

Choose the right engagement model that aligns with your project needs, budget, and timeline

Fixed Price

A Fixed Price model means the project cost and scope are agreed before development begins. It helps companies control budget, plan better, and ensure the project is delivered within a defined timeline.

Benefits :

Predictable budget since the total cost is agreed before the project starts.
Clear scope and timeline make planning and delivery easier.

Need to Know :

Limited flexibility if requirements change during development.
Changes usually require scope revisions and additional cost.

Time & Material

A Time & Material model means the client pays based on the time spent and resources used during development. It is ideal for projects where requirements may evolve, allowing flexibility to adapt, iterate, and improve the product as the work progresses.

Benefits :

High flexibility to update features or scope as the project evolves.
Suitable for projects where requirements are not fully defined.

Need to Know :

Final cost is not fixed and may increase with more development time.
Requires closer monitoring to manage budget and progress.

Dedicated Team

In a Dedicated Team model, a team of developers, project managers, and other required specialists is assigned exclusively to your project. This setup provides better communication, flexibility, and control, making it suitable for long term projects that require continuous development and scaling.

Benefits :

A focused team works only on your project, improving speed and collaboration.
Easy to scale the team up or down based on project needs.

Need to Know :

Higher ongoing cost compared to short-term project models.
Requires active involvement from the client for planning and direction.

Talk to Our Experts

Why You Should Choose Eternalight as a Custom Software Development Company?

We take every step to drive real value across organizations, making every interaction count and responsive offering custom software products that change the way you manage your workflows.

Dedicated & Skilled Professionals

We have a team of dedicated professionals who take ownership to drive the robust custom software product to launch on time. Ensuring that it doesn’t break or encounter bugs.

Client-focused Development

We discover every aspect of your business, its pain points, and market competition to develop a well-strategized approach and software that aligns with your business logic. Then embed the necessary integrations to automatically manage the task within a limited timeframe.

Transparent Communication

We do transparent conversations with business owners to understand their business complexities and know their tech integration preferences.

Scalable & Secure

We help you dream bigger and go further by using software specifically designed to keep your business domain in mind, ensuring it is secure and scalable in the long term.

Consistent Dev Support

If anything is blocking access to a feature or service, if software is lagging, or if you need any type of upgrade, our engineers are available 24/7 to deliver optimal output.

Our Work, In Their Words

Hear directly from our clients as they share how our work made a real impact on their business.

Eternalight really knows the travel space. They helped us at Navan hook up backend systems for both LCC and non-LCC airlines in India, plus integrate with hotel content providers. Super quick turnaround, solid quality — exactly what we had in mind

Thiagarajan Rajagopalan

Vice President of Products

We were looking for a partner who could strengthen our existing team and bring deep expertise in the fintech domain. We needed 10+ skilled engineers on short notice—people who understood both fintech and product development.

Rizwanul Haque

Senior Director Of Engineering

I had a frustrating experience with another company while building my product and was looking for a partner who truly understood what it takes to build something great. That’s when I was referred to Eternalight—and I was immediately impressed by thei…

Pravat Lal

Founder, CEO

We needed a team that truly understood the sports domain and had real experience building event-based reservation systems. Eternalight stood out because of their past work in the space. We had an ambitious goal to launch our MVP in just 2 weeks

Abhinav Shankar

Co-founder

EternaLight proved to be the ideal choice. Their team of developers demonstrated exceptional skill and dedication, seamlessly integrating with our existing processes and upholding our high standards. Their ability to adapt for new frameworks.

Jayesh Gadewar

Co-Founder

Our product has evolved over 8 years, built by a mix of developers, freelancers, and myself. But with outdated technology and legacy code piling up, we started facing major challenges—slow performance, upgrade issues, and poor scalability.

Anita Balaraman

Founder

We had a fast-moving idea for an AI-based product and needed a skilled frontend engineer to build a scalable, responsive interface within 3–4 weeks. Having worked with Eternalight before, choosing them again was a no-brainer. As expected.

Varun Francis

Co-founder

Thiagarajan Rajagopalan

Vice President of Products

Rizwanul Haque

Senior Director Of Engineering

Pravat Lal

Founder, CEO

Abhinav Shankar

Co-founder

Jayesh Gadewar

Co-Founder

Anita Balaraman

Founder

Varun Francis

Co-founder

Frequently Asked Questions

Find answers to common questions about our services, process, and solutions to help you get quick clarity.

1. Why does your business need custom software instead of general tools?

Traditional software with general features works fine for general purposes, but if your business offers specific services to a specific audience and market where data and user privacy are highly crucial, you need software that integrates new accessibility features easily and allows seamless workflow management.

2. How long does it take to develop custom software?

We can’t predict the timeline to develop custom software solutions until we have an estimate of the scope, features, third-party integrations, and audience. However, general-level software with 10 screens takes 8 to 12 weeks; medium-level software with 15 to 20 screens takes 3 to 6 months; and enterprise-level software with 200 to 500 screens takes 6 months. As we follow agile development, the project is completed within the estimated time, incorporating CI/CD practices.

3. Why should a business partner with a custom software development company?

Many businesses have noticed that users don’t tap certain features, believing they're of no use. When they tried to remove those features and integrate new ones aligned with customer needs, it became clear that, if it were custom software, it could be easily upgraded.

4. When should a business hire a software development service provider?

If the existing software fails to impress customers, or you are receiving too many queries about features or accessibility that do not exist and cannot be integrated. If performance drops due to increased customer demand, the software has security risks. The business must access the custom software services.

5. What is the cost to build a custom software development?

Project complexity is not the only factor we need to consider; the platform is too. Is it cloud/mobile/web or cross-platform? Furthermore, the development team needs to consider developers' costs, ongoing maintenance, and security integrations. Many companies offer flexible service models to deliver software at low cost.

6. Is it possible to customize business-specific accessibility with existing systems?

Our custom software development company team will take care of your every business need, integrating high-performance driven features to enable payment transactions, customer support, lead generation, third-party APIs, and more, streamlining seamless data flow and operations.

Contact Us

Send us a message, and we’ll promptly discuss your project with you.

Partner with a Reliable Custom Software Development Company

We build custom software aligning your business needs and help you manage operations smoothly, without complications.

Partner with a Reliable Custom Software Development Company

We build custom software aligning your business needs and help you manage operations smoothly, without complications.