Payment Processing Software

E-commerce payment processing software enables fast and secure payment transactions. Custom systems we at SECL Group specialize in are tailored to accept payments on various devices and provide better customer service.

 

About Payment Processing Software Solutions

Financial transactions are an integral part of retail businesses. With the growth in digital purchasing, a smooth payment experience is a must. Software for payment processing is suitable for various payment methods. They differ from credit/debit cards to mobile payments and numerous digital wallets, including those for international transactions. They also play a pivotal role in enhancing transactional security, deterring fraudulent activities, and achieving essential compliance.

The automation prowess embedded within these solutions negates the need for manual data entries, minimizing human-induced errors and ensuring rapid transaction processing. Consequently, businesses can offer faster checkout experiences. 

By accepting varied electronic payments, businesses organically expand their clientele, as customers are more likely to make purchases if they can conveniently pay with their preferred method. Advanced features even allow the addition of region-specific payment gateways, amplifying the user experience.

Modern solutions also prioritize data security. Advanced encryption, tokenization, and fraud detection mechanisms ensure payment information security. Their versatility lets them integrate seamlessly with other operational software, such as accounting systems, CRM platforms, and ERPs.

Features

Payment processing system



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Work Process

Payment processing software development with SECL Group includes several stages, each requiring its own team of specialists. As a rule, special attention is paid to integrations with other e-commerce software.

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Project planning

We create tasks, plan our work, and set priorities.

Team:

  • Project Manager

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Business analysis

We analyze the client’s infrastructure, develop task specifications, and look for solutions for the client’s problems.

Team:

  • Project Manager
  • Business Analyst

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UI/UX design

We create usable and appealing interfaces for various audience groups. 

Team:

  • Project Manager
  • Business Analyst
  • UI/UX Designer

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Back-end development

We develop the server side.

Team:

  • Project Manager
  • Business Analyst
  • UI/UX Designer
  • Back-end Engineers
  • Manual QA Engineers

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Front-end development

We develop the user side.

Team:

  • Project Manager
  • Business Analyst
  • UI/UX Designer
  • Front-end Engineers
  • Manual QA Engineers

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Integrations

We analyze the software to be integrated and complete two-side integrations. 

Team:

  • Project Manager
  • Business Analyst
  • UI/UX Designer
  • Front-end Engineers
  • Back-end Engineers
  • DevOps Engineers

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Testing

We perform various types of testing: manual, automated, unit, and integration. 

Team:

  • Project Manager
  • Manual QA Engineer
  • QA Automation Engineer
  • Back-end Engineers

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Implementation and training

We develop training materials and implement the system in the client’s company. 

Team:

  • Project Manager
  • Technical Writer
  • DevOps Engineers
  • Support Engineers

Our Clients

We develop large projects for clients across 27 countries, a significant number of which are featured on the Fortune 500 list.

Microsoft
Microsoft
Hyundai
Hyundai
Mazda
Mazda
Pepsi
Pepsi
Kia
Kia
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Preston Baker
Preston Baker
Thomas Cook
Thomas Cook
Recipe Plus
Recipe Plus
Danone
Danone
Pivdenny bank
Pivdenny bank
Gravitec
Gravitec

Our company specializes in projects for
Retail & E-commerce

Why Do You Need It?

When it comes to handling financial transactions, retailers face many challenges, including high levels of declined payments. But by working with payment processing software developers from SECL Group, you can eliminate almost all of them, including the following:

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High transaction volume

Your company handles vast transaction volumes

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Security issues

You want to improve payment security

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Multiple sales channels

You work with various sales channels

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Manual processing issues

You deal with manual processing errors

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Lack of analytics

You want to receive robust payment and sales analytics

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Ineffective reconciliation

Payment reconciliation is inefficient

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Unorganized transactions

Your transactions lack organization

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Fraud issues

You deal with financial losses due to payment fraud

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Few payment options

You offer limited payment options for your customers

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Elaborate transactions

You receive complex international payments

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High commissions

You have high transaction commissions

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No subscription

You can’t offer a monthly subscription

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High level of refusal

The high refusal rate for card payments

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Transaction loss

You lose a part of your payments

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International payments

Many transactions from other countries

Need a payment processing solution?

Enable fast and secure payments by building a payment processing system with SECL Group.

Our Standards

In our work, we follow international approaches and standards such as:

Management:PMP
Design:ISO 9241-210
Programming:Coding conventions, MDN Web Docs, Naming convention
Python:PEP 8
JS/TS:ECMA, JavaScript Standard Style, Google TypeScript Style Guide, ESLint
PHP:PSR
С#:ReSharper
HTML/CSS:W3C
Security:GDPR
Testing:ISTQB

Technologies

We specialize in specific technologies, with the technology stack chosen based on the project’s purpose and requirements

Programming languages:

Python
Python
Javascript
JavaScript
Java
Java
PHP
PHP
C#
C#

Web / Frameworks:

Django
Django
Fastapi
FastAPI
Spring
Spring
Hibernate
Hibernate
.Net
.NET
Node.js
Node.js
Express
Express
NestJS
NestJS
Laravel
Laravel
Yii
Yii
Symfony
Symfony
React
React
Vue.js
Vue.js
Angular
Angular
Ext JS
Ext JS

Databases / Data storage:

MySQL
MySQL
PostgeSQL
PostgeSQL
MongoDB
MongoDB
Redis
Redis
A. Casandra
A. Casandra
Elasticsearch
Elasticsearch
Amazon RDS
Amazon RDS
Amazon S3
Amazon S3

DevOps containers:

Docker
Docker
Kubernetes
Kubernetes
AWS ECS/EKS
AWS ECS/EKS

DevOps automation:

Ansible
Ansible
Chef
Chef

DevOps CI/CD:

GitLab CI/CD
GitLab CI/CD
Jenkins
Jenkins
AWS
AWS

DevOps monitoring:

Zabbix
Zabbix
Grafana
Grafana

Testing:

Selenium
Selenium
Postman
Postman
Swagger
Swagger
Apache JMeter
Apache JMeter
Cypress
Playwright
Playwright

Clouds:

AWS
AWS
Azure
Azure
Google Cloud
Google Cloud

Results

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Providing a wider range of payment options

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Enhanced security with robust measures

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Streamlined payment process

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Enabling real-time analytics and reporting

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Efficient chargeback management

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Better customer experience

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Enhanced lead management

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Handling large transaction volumes

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Faster transaction processing

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You can offer a monthly subscription

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Low transaction commissions

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No refusals for payments from other countries

FAQ

Here are our answers to some frequent questions about payment processing software development. If you have another question on this topic, get in touch with us and we’ll be happy to discuss it with you.

How do we evaluate whether a vendor is a good fit for building a payment solution?

It usually comes down to how the team approaches real transaction flows and integrations. SECL Group’s team focuses on connecting payment systems with other platforms in a way that keeps operations stable as volumes grow.

How does a vendor support payment systems after launch?

Vendors usually continue working with clients after launch to monitor performance and refine payment flows. Post-launch support for payment processing sofware usually includes adjusting integrations and improving transaction success rates.

How do development teams work on reducing payment failures?

Teams with experience in building retail systems, such as SECL Group, review how the payment flow behaves in real-life scenarios, including how systems respond to errors. Small adjustments to the integration logic or handling edge cases can make transactions more consistent.

What does the design phase look like for payment processing flows?

The design stage for payment processing software focuses on how users move through checkout and how the system responds behind the scenes. This includes structuring interactions to provide a seamless experience while keeping integrations with retail platforms and payment gateways consistent.

What does QA phase look like for payment processing systems?

Testing payment processing software involves simulating real transactions, including failed payments and timeouts. Providers tend to validate how the system behaves under different conditions to make sure payment flows remain consistent.

What kind of business outcomes can you expect from building payment processing software?

SECL Group pays much attention to improving transaction reliability and operational visibility. Our approach connects payment processing with other systems like ERP and analytics. This way businesses process payments and also better understand revenue flows and customer behavior.

How to estimate the cost of building a custom payment processing system?

Costs depend on many factors, including the number of integrations, supported payment methods, and compliance requirements. Teams like SECL Group usually execute thorough requirement analysis to provide accurate estimates before development starts.

How to build payment processing systems for businesses that operate in multiple regions?

These projects involve dealing with multiple currencies, local requirements, and integrations, which adds complexity. SECL Group’s team is often involved in projects where payments need to work across different markets thanks to their experience with retail systems.

How are third-party payment gateway integrations typically handled?

Integrations are implemented as a separate layer in payment processing software development to keep the system flexible. Developers usually structure this so gateways can be easily updated or replaced without affecting the rest of the payment flow.

How do teams iterate on payment systems after the initial release?

Iteration is based on real transaction data and user behavior. Experienced teams like SECL Group make gradual adjustments to payment processing software to improve reliability and adapt to new payment methods or business requirements over time.

About Us

Employees

70+

Employees

Clients

Clients

from Fortune 500

Locations

5

Locations

Countries we serve

27

Countries we serve

Senior experts

82%

Senior experts

Completed projects

200+

Completed projects

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