• OVERVIEW
  • SERVICES
  • MODELS
  • WHY CHOOSE US?
  • TECHNOLOGIES
  • OUR PROCESS
  • FAQS

Trusted Backend Development Company for Scalable Digital Solutions

back-end software development services
  • Finding a backend development company you can truly rely on isn’t always easy. With so many moving parts in any digital product, the backend must be trustworthy. It’s the engine that keeps everything running smoothly. When you're building a mobile app, web platform, or IoT solution, the right backend infrastructure keeps your product is stable, responsive, and future-ready.
  • STS Software creates tailored backend systems that power high-performance applications across various platforms. With over 13 years of experience and 800+ successful projects for global clients, we’ve earned a reputation for reliability, technical excellence, and consistent delivery. Our backend solutions are designed to handle complex business logic, secure data processing, seamless third-party integrations, and flexible cloud-based architectures.
  • We offer a wide range of backend development services including custom API development, microservices architecture, database design and management, cloud integration, server-side logic development, and backend modernization. Our teams are also well-versed in DevOps practices, CI/CD, and containerized environments for scalable deployment.
back-end software development services
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350+
Skilled software engineers delivering excellence
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13+
Years of dedicated industry experience
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800+
Successfully software development projects
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300+
Global Clients

Our Comprehensive Suite of Back-end Development Services

STS Software delivers reliable backend development services that support your business growth. You will get more than code; you get a technology partner invested in your success.
Custom Backend Development

Custom Backend Development

We build custom backend systems that form the backbone of high-performing web, mobile, and desktop applications. From database interactions to server-side logic, our team uses technologies like Python, Java, .NET, Django, and Node.js to create secure and scalable backend infrastructures customized to your unique business needs.
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Mobile App Backend Development

Mobile App Backend Development

Mobile apps need a strong backbone to keep up with today’s on-the-go users. Our team delivers robust backends for native (Java, Kotlin, Swift) and cross-platform (React Native, Flutter) mobile apps. Never worry about unpredictable user loads or cross-device compatibility anymore because we deliver seamless data synchronization, real-time updates, and scalability across devices and platforms.
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Backend Web Application Development

Backend Web Application Development

Your web app’s performance starts behind the scenes. We create backend architectures that drive smooth user experiences, no matter how complex the app. Our approach provides fast response times, secure data management, and scalable architecture that adapts to your business growth and integrates easily with third-party services.
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API Development and Integration

API Development and Integration

APIs are the glue holding modern software together and we’re masters at making them stick. We develop and integrate robust APIs (RESTful, GraphQL, and more) that enable smooth communication across platforms. With testing tools like Postman and Swagger, we keep everything connects flawlessly, every time.
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Backend Testing

Backend Testing

We carefully test backend systems to validate performance, security, and stability. We use tools like JUnit, TestNG, and SoapUI to catch issues early and ensure your backend operates flawlessly under all conditions through unit and integration testing, load and stress testing.
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Cloud Backend Solutions

Cloud Backend Solutions

Ready to level up? We help businesses modernize by developing and migrating backend systems to the cloud. Leveraging platforms like AWS, Azure, and Google Cloud, our solutions offer flexibility, high availability, and cost-efficiency while supporting your growth with auto-scaling and robust architecture.
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Our Engagement Models

To meet diverse business demands, we’ve designed flexible engagement models. These approaches help us deliver high-quality services in the most efficient and cost-effective way that you get exactly the support you need.
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Development Dedicated Team

Our dedicated development team model offers clients a fully committed group of professionals who focus solely on their projects. These experts plunge themselves in your business goals and technical requirements, providing consistent support and integration with your in-house operations. By working exclusively on your solutions, we provide higher productivity, stronger alignment, and better long-term results.

Ideal for Businesses that:

  • Need budget-conscious project execution
  • Are looking for a long-term development partner
  • Want a team that’s fully aligned with their business objectives
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Staff Augmentation

With our staff augmentation model, you can extend your team with experienced backend developers who bring specialized skills and agility to your projects. We provide professionals who integrate quickly and work under your direction for the need to fill a temporary gap, boost your development speed, or manage workload peaks.

Ideal for Businesses that:

  • Need extra support on one or multiple projects
  • Experience seasonal demand fluctuations
  • Handle ongoing or complex development tasks
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Full Software Development Outsourcing

Our full software development outsourcing model covers everything from initial planning and architecture to development, testing, and maintenance. We handle the complete backend lifecycle so you can focus on your core business. Our team works closely with you to make sure your expectations are met at every stage while delivering scalable, secure, and high-performing backend systems.

Ideal for Businesses that:

  • Need a complete, end-to-end back end development services
  • Want to save time, costs, and internal resources
  • Are building complex systems like SaaS platforms, eCommerce apps, or enterprise-level solutions

See Our Proven Results

SaaS
MOBILE TEAM MANAGER

MOBILE TEAM MANAGER

Mobile Team Manager is a robust solution. It has all the tools to manage field and office work in service-oriented industries.
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Custom Services
Simply DMS

Simply DMS

The current document management system (DMS) was developed by a team quite some time ago. The current system has not been maintained or updated by a dedicated group.
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Web Application
SmithBot

SmithBot

SmitBot serves as a bridge connecting the client’s server, which operates advanced automated cryptocurrency trading agents, with cryptocurrency exchanges and end users who wish to subscribe to these trading bots.
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Why Partner with STS Software for Back-end Development Services?

Learn why STS Software is the trusted choice for backend development services. We bring the perfect mix of experience, technical skill, and client-first thinking to every project, making us a trusted ally for businesses around the world.

With over 13 years in the tech industry, we’ve delivered hundreds of successful backend development projects across a range of industries. Our team includes 350+ top-tier developers, solution architects, and project managers who work together to turn ideas into high-performing systems. We understand what it takes to build backend infrastructure that’s reliable, scalable, and aligned with your business goals.

Our backend developers are fluent in today’s leading programming languages like .NET, Java, Python, Node.js, and Go. We also bring deep knowledge of database systems, both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB), and have experience working with various architecture types, including monolithic, microservices, and serverless. We assure every piece fits perfectly by building robust APIs using REST or GraphQL and integrating with your frontend.

We design backend systems that are built to scale for the web, mobile, or IoT. Our solutions are optimized for speed, resilience, and the ability to handle high traffic loads without compromise. Plus, with extensive experience in cloud environments like AWS, Azure, and Google Cloud, scaling up your operations is never a headache.

Your data security is our priority. We implement strict security protocols including encryption, firewalls, and strong authentication systems. We also conduct thorough weakness assessments and adhere to globally recognized standards like ISO 27001 to keep your backend protected from threats at every layer.

Every business is unique, and so is every project. That’s why we offer multiple engagement models to fit your needs. Whether you’re looking for a dedicated backend team, need to augment your existing staff, or want a full-cycle backend solution, we’ve got a collaboration model that works for you.

Quality is never an afterthought at STS Software. We follow structured QA practices, including both manual and automated testing, to protect your backend systems like a bulletproof. With our adherence to ISO 9001 standards, you can count on performance, reliability, and long-term maintainability.

We believe that great tech solutions start with great communication. Our team is experienced in working with global clients and fluent in English, making collaboration smooth and efficient. We prioritize responsiveness, transparency, and building long-term relationships. Our clients often highlight our ability to quickly understand their needs and consistently deliver on expectations.

High-quality backend development doesn’t have to mean high costs. At STS Software, we focus on delivering real value, combining top-tier technical expertise with pricing that makes sense. Our goal is to help you achieve maximum ROI without compromising on the things that matter most: speed, security, and scalability.

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Trusted by Industry Leaders

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How We’ve Made a Difference

I would recommend companies to work with STS Software for their Software development or service needs. The project team is very responsible for their work and would recommend solutions in the interest of the client. The team also responds very quickly to requests, bugs, and questions. One exceptional quality of STS Software was their patience for clients. There were several times when we were slow to respond or test our apps but the project team was still very accommodating towards us.
Jeremy Heng
Development Manager - Rehau Group PTE
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I have not had an issue with any of STS Software's team. I have had a couple of project managers already, and various dev. teams. The team are so knowledgeable, I feel very safe and secure these days as I spec. in my next bit of work.
Mr. Kirk Duncan
CEO of The Mobile App Man, Sydney, Australia
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Ready to Power Your App with a Smarter Backend?

Behind every great app is an even greater backend. STS Software is here to help you choosing the right tech stack and launching a robust backend infrastructure.
Tell Us About Your Backend Goals
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What Strong Backend Development Brings to the Table

While users see the frontend, it's the backend that manages data, drives functionality, and ensures speed, scalability, and security. Let's explore the essential benefits of a well-structured backend and why it’s the engine behind your application’s success. 

benefits of backend development

A well-structured backend keeps your application performs smoothly, even under heavy traffic. With fast server-side processing and efficient management of user requests, users enjoy quicker loading times and smooth navigation. Backend systems deliver dynamic content swiftly and consistently, laying the groundwork for an engaging user experience every time someone interacts with your product.

As your user base expands, your backend infrastructure needs to grow with it. Scalable backend architectures, which are powered by platforms like AWS, Azure, or Google Cloud, are designed to handle increasing workloads without performance drops. Your system can adapt to business growth and unpredictable traffic with ease.

Security is non-negotiable in today’s digital world. Strong backend development provides robust authentication protocols, data encryption (both at rest and in transit), and secure APIs. Firewalls and rigorous security testing further support your system. By safeguarding sensitive data and blocking threats, your backend becomes a critical line of defense against cyberattacks.

A powerful backend supports effortless integration with third-party tools and services, from payment gateways to CRM platforms. Through well-designed APIs, it connects your app to external systems with smooth data flow and consistent performance. This integration enhances functionality and makes your application more versatile and valuable to users.

Backend systems keep your data organized, secure, and easy to manage. Whether you're working with structured SQL databases or flexible NoSQL systems, your data is stored and processed efficiently. Our backend solutions eliminate bottlenecks and keep your applications running at peak performance, all while delivering accurate insights and smooth functionality.

Off-the-shelf solutions rarely meet every need. That’s why we create backend systems designed specifically for your business challenges and growth plans. Our backend development approach is built around your industry, your users, and your goals that support diverse platforms and complex requirements.

Our Technologies

Our Back-end Development Process

Our backend development process is designed to deliver performance, security, and scalability at every stage. Let’s walk you through how STS Software creates powerful backend solutions.
process 1

Requirement Gathering and Analysis

Our journey begins with deep, collaborative conversations to fully understand your business goals, application vision, and user expectations. We evaluate the type of app you’re building, the key functionalities you need, and any must-have features. By aligning with your exact requirements, we determine whether a dedicated development team or another engagement model is the right fit for your project.
process 2

Planning and Strategy

Next, we map out a detailed plan. This includes setting the project timeline, defining resources, and breaking the work into manageable stages. We also perform scope estimation to provide clarity from day one. During this phase, we select the best-fit technologies and frameworks to power your backend, laying the groundwork for long-term performance and scalability.
process 3

Architecting the Backend System

With the strategy in place, we move into architectural design. Our experts define the high-level structure of your backend, including database schema, server setup, and data flow. We choose between SQL and NoSQL solutions based on your needs, and carefully map out tables, fields, relationships, and constraints.
process 4

Building and Implementing the Backend

Now, our skilled backend developers bring the sketches to life. Using the latest technologies like .NET, Java, Python, Node.js, Go, and more, we write clean, efficient code that powers your application behind the scenes. We build robust APIs, configure business logic, and implement key features such as authentication, authorization, and external integrations. Every component is created for performance and reliability.
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Development

This is the stage where we roll our sleeves and dive into the coding process. Our team of skilled backend developers starts building the backend based on the desired plan. They write efficient code using the latest technologies and best practices to ensure the backend is robust, scalable, and secure.
process 6

Testing

After the development phase, we conduct thorough testing to ensure the backend functions as expected. This includes various types of testing, such as performance testing to check if the backend can handle high loads, and security testing to identify any potential vulnerabilities.
process 7

Deployment

Once the backend passes all the tests, it's time for deployment. We ensure that the backend integrates seamlessly with your application's front end and other components and does not cause downtime or disruption to the end users.
process 8

Maintain & Support

Our job doesn't end after the backend is deployed. We provide ongoing maintenance and support to ensure the backend performs optimally. It includes monitoring for issues, making necessary updates or improvements, and providing quick fixes if problems arise.

Expert Articles

FAQs

Backend development services are all about building the behind-the-scenes functionality that powers your application. It is like the brain of your software, which handles things such as server logic, databases, APIs, and everything that keeps your app running smoothly. STS Software specializes in creating secure, scalable, and high-performance backends tailored to your unique need.

Backend development typically has three key parts: server-side logic, databases, and the API layer. Server-side logic is the brain that processes requests and runs your app’s core functions. Databases store and manage all the important data. APIs act like messengers, connecting your backend with the frontend and other systems. 

Yes, APIs (Application Programming Interfaces) are a crucial part of backend services. They act as bridges that connect your frontend (what users see) to the backend (where the logic and data live). APIs also allow smooth integration with third-party tools like payment gateways, CRMs, or social platforms. At STS Software, we specialize in building APIs that make your applications more powerful, flexible, and user-friendly. 

When it comes to backend development, the right language can make a big difference. Here are five of the most popular and powerful ones: 

- Node.js: Great for real-time apps and fast performance, especially in JavaScript-heavy environments. - Java: A reliable choice for large-scale enterprise systems and Android backends. 

- Python: Its simplicity and versatility, often used in AI, ML, and web APIs.  

- PHP: Widely used for web development, especially in CMS platforms like WordPress.  

- Ruby: Known for its elegant syntax and productivity, popular with startups using Ruby on Rails.

Backend developer hourly rates can range anywhere from $25 to $150+, depending on factors like experience level, location, and technology stack. For example, senior developers with expertise in high-demand languages like Node.js or Python typically charge more. Plus, with our flexible engagement models, you can choose the setup that fits your budget and goals.

Backend developers need a mix of technical and soft skills to excel. Technically, they should be proficient in programming languages like Java, Python, or Node.js, and have solid knowledge of databases (SQL/NoSQL), API development, and security practices. Problem-solving is crucial, as they often tackle complex systems. On the soft side, communication and teamwork are key. STS Software provides a team of backend developers that are not only skilled in the latest technologies but also aligned with your project goals and work smoothly with your team.

The timeline for backend development depends on several factors, including the project's complexity, size, and the technology stack used. Smaller projects, like simple web apps, can be completed in a few weeks, while large-scale systems or enterprise-level applications may take several months. STS Software’s experience allows us to provide accurate estimates and meet project timelines efficiently.

We prioritize backend security by implementing industry best practices, such as encrypting sensitive data both at rest and in transit. We use robust access control mechanisms that only authorized users can interact with your system. Our team designs secure APIs and follows strict compliance standards to protect against issues. With a proactive approach, we give you peace of mind and safeguard your business data.

Maximize Your Business Potential with Strong Backend Systems

Start your journey towards a more efficient backend today by contacting us for a customized solution!
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