01 Fintech · Payments · Software · AI
We Build Technology
That Moves Business Forward.
TestExcel designs and develops payment solutions, builds custom software, integrates payment systems and automates business processes using AI.
Technology grounded in deep payments expertise.
02 What we do
What We Do
From payments to intelligent business systems.
Payment Solutions Development
Designing and developing payment-enabled applications, transaction workflows, reporting platforms and digital financial solutions.
Learn more →Custom Software Development
Building web applications, business platforms, dashboards, portals and custom software designed around real operational needs.
Learn more →Payment Integrations
Connecting payment gateways, PSPs, APIs and business systems to enable reliable digital payment experiences.
Learn more →AI-Powered Business Automation
Building intelligent workflows, automating repetitive processes, connecting business tools and turning operational data into actionable insights.
Learn more →Payments Advisory & Assurance
Providing specialist payments knowledge, technical guidance, integration assessments, scheme compliance testing and release readiness support.
Learn more →Technology Talent & Resource Augmentation
Access skilled software developers, QA engineers, payments specialists and technology professionals to support your delivery teams and projects.
Explore Talent Solutions →03 Why teams call us
Complex Problems. Practical Technology Solutions.
Generic technology teams learn payments on your project. We arrive with experience across payment technology, transaction flows, integrations and the operational realities that can escape ordinary software delivery.
04 Payments expertise
Payments Knowledge Built Into Everything We Do.
Payments are complex. From customer checkout to authentication, processing, settlement and reconciliation, we understand the technology and integrations behind digital transactions.
05 End-to-end coverage
We Understand the Entire Payment Journey.
From the moment a customer initiates a payment to the final settlement and reconciliation, every system needs to communicate correctly.
06 AI-powered business automation
Smarter Workflows. Better Business Visibility.
Businesses lose valuable time moving information between systems, preparing reports, following up on payments and completing repetitive tasks. TestExcel builds automated workflows that connect business systems, reduce manual work and provide better visibility into daily operations.
Illustrative example of an automated workflow, not evidence of a deployed product.
AI can automate the process. Payments and business expertise determines what is worth automating.
07 Technologies we work with
The Technology Behind What We Build.
We combine modern programming languages, software development frameworks, AI-assisted engineering tools and automation platforms to build solutions that fit real business needs.
Whether you need a TypeScript web application, Java backend integration, Python automation or intelligent business workflows, we bring together the right technologies for the project.
Programming languages
Frameworks & development
Quality engineering & test automation
AI-assisted development
We use AI-assisted development tools to support software prototyping, engineering, code review and development workflows, with human oversight.
Automation & low-code
These technologies support business process automation, system connectivity, operational workflows and communication automation.
Payments technology
We combine payments domain knowledge with modern engineering practices to develop payment-enabled business applications and integrations.
08 Solutions & demos
From Ideas to Working Technology.
Working demonstrations built with fictional data, not customer case studies.
Interactive Demo · Fictional DataAn interactive financial intelligence dashboard showing how businesses can consolidate appointments, revenue, payment settlements, payroll, expenses and operational performance into one platform. Built around a fictional luxury aesthetics clinic, this demonstration illustrates how bespoke software can help businesses understand their finances and make more informed decisions.
Explore Dashboard →Interactive Demo · Fictional DataAn interactive payment recovery workflow demonstration showing how businesses can identify failed payments, apply recovery rules and prepare customer reminders. Visitors can select payment scenarios, simulate workflow execution, review automated decisions, preview customer messages and inspect audit information. This illustrates how payment recovery automation could work for payment service providers, merchants and other businesses.
Explore Workflow →Coming soonFINCORE is a core banking and financial systems product bringing together CASA accounts, loans, fixed term deposits, recurring deposits, contingency assets and liabilities, and reconciliation into a single coherent ledger, illustrating how the building blocks of a retail banking platform fit together.
09 Let’s talk
Have a Similar Business Challenge?
From custom applications and payment integrations to intelligent business workflows, TestExcel helps businesses turn operational challenges into practical technology solutions.
10 Founder presence
Built on Payments Experience. Driven by Technology.
“Payments do not get a second chance to work. Our job is to make sure they never need one.”
Lesego Igwe, Founder, TestExcel
TestExcel was founded by Lesego Igwe, a fintech and payments professional with over 10 years of experience across banking, digital payments and financial technology. Her background spans payment processing, payment integrations, transaction workflows, software quality and technical delivery. Today, she is expanding TestExcel beyond its quality assurance roots into software development, payment technology solutions and AI-powered business automation. She is also passionate about payments education and publishes Payments in Africa, a newsletter exploring developments across the African payments ecosystem.
11 Frequently asked
Frequently Asked Questions
What does TestExcel do?
TestExcel is a South African technology company specialising in fintech and payments. We design and develop payment solutions, build custom software, integrate payment systems, and create AI-powered business automation. We also provide payments advisory and assurance, including scheme compliance testing, for teams that need specialist payments guidance.
Does TestExcel build fintech applications?
Yes. TestExcel designs and develops payment-enabled applications, transaction workflows, reporting platforms and digital financial solutions, drawing on deep payments domain knowledge to build software that handles real-world payment complexity correctly.
Can TestExcel integrate payment gateways?
Yes. TestExcel connects payment gateways, PSPs, APIs and business systems to enable reliable digital payment experiences, working across the customer checkout, authentication, processing and settlement layers of a payment journey.
Does TestExcel develop custom software for businesses?
Yes. TestExcel builds web applications, business platforms, dashboards, portals and custom software designed around real operational needs, for fintechs, banks and businesses that need software built around how they actually work.
How can AI automation help my business?
AI-powered automation can reduce manual work by connecting business tools, consolidating data from multiple systems, and turning operational information into reports and dashboards your team can act on, instead of hours spent on repetitive administrative tasks.
Can TestExcel build financial dashboards?
Yes. TestExcel builds dashboards that consolidate transactions, revenue, expenses and payment information into a single view, so business owners can monitor financial and operational performance without relying on multiple disconnected reports.
Does TestExcel provide payments advisory?
Yes. TestExcel provides specialist payments knowledge, technical guidance, integration assessments, scheme compliance testing and release readiness support for teams that need independent payments expertise alongside their own delivery.
Where is TestExcel based?
TestExcel is based in South Africa and works with fintechs, banks and businesses remotely across markets, supporting payment technology, software development and automation projects wherever they are delivered.
12 Get in touch
Let’s Build Something That Works.
Whether you're developing a fintech product, integrating payment systems, building custom software or automating business processes, tell us what you're working on.