Creating Innovative Customer Experiences for Your Digital Commerce Store with Custom E-commerce Software Development Services
Updated
Clients served together with our delivery partner NeoSOFT
E-commerce Software Development Solutions
Mobile Commerce (mCommerce) App Development
Key highlights:
- Real-time analytics for better business decisions
- Secure and compliant mobile transactions
- Seamless integration with payment gateways
- Engaging mobile interfaces for higher conversions
- Expert developers with deep retail domain knowledge
Social Commerce Solutions
Key highlights:
- Increased brand reach and engagement
- Integrated product catalogs and checkout features
- Social analytics for audience insights
- Gamified campaigns for improved retention
- Scalable architecture for growing social commerce needs
Smartwatch and Television Commerce (TCommerce)
Key highlights:
- Innovative engagement across connected devices
- Smart integrations with existing e-commerce platforms
- Next-generation omnichannel experiences
- Real-time insights into customer interactions
Personalization and Data-driven Experience Design
Key highlights:
- Customer profiling and behavior-based segmentation
- Omnichannel personalization across touchpoints
- Real-time data analysis for targeted marketing
- Campaign optimization for improved ROI
Key highlights:
- Custom front-end development using modern frameworks
- API integration and management for seamless data flow
- Enhanced site performance and customer satisfaction
- Improved analytics and operational efficiency
Key highlights:
- Real-time analytics for better business decisions
- Secure and compliant mobile transactions
- Seamless integration with payment gateways
- Engaging mobile interfaces for higher conversions
- Expert developers with deep retail domain knowledge
Key highlights:
- Increased brand reach and engagement
- Integrated product catalogs and checkout features
- Social analytics for audience insights
- Gamified campaigns for improved retention
- Scalable architecture for growing social commerce needs
Key highlights:
- Innovative engagement across connected devices
- Smart integrations with existing e-commerce platforms
- Next-generation omnichannel experiences
- Real-time insights into customer interactions
Key highlights:
- Customer profiling and behavior-based segmentation
- Omnichannel personalization across touchpoints
- Real-time data analysis for targeted marketing
- Campaign optimization for improved ROI
Key highlights:
- Custom front-end development using modern frameworks
- API integration and management for seamless data flow
- Enhanced site performance and customer satisfaction
- Improved analytics and operational efficiency
Custom AI Solutions Designed For Measurable Business Outcomes
Selected clients success stories
Customized E-Commerce Platform Built for a Trend-Focused Clothing and Accessories Brand
Enhancing visual appeal, inventory accuracy, and payment flexibility through deep platform customization
76%
2X
35%
Multilingual Social Commerce Platform Built for Saudi Arabia’s Premier Handmade Crafts Marketplace
Enhancing accessibility, transparency, and product discovery through a modern social shopping experience
Proven Results, Shared by Clients
“Sthenos improved the overall quality of the client’s software by reducing bugs, strengthening system stability, and supporting consistent performance improvements across the platform over time.”
⭐⭐⭐⭐⭐
“Sthenos delivered the project in line with our requirements and kept the process clear throughout. The team shared regular updates and quality reports, ensuring transparency at every stage.”
⭐⭐⭐⭐⭐
“Sthenos delivered the project successfully and met our expectations. The team stayed organized, transparent, and communicated clearly, making collaboration smooth throughout the engagement.”
⭐⭐⭐⭐⭐
“Sthenos improved system performance by cutting report generation time, reducing slowdowns, and increasing reliability, which helped lower support issues across the platform.”
⭐⭐⭐⭐⭐
“Sthenos noticeably improved the performance and reliability of our systems, ensuring more consistent operations, fewer disruptions, and a smoother experience across our overall technology environment.”
⭐⭐⭐⭐⭐
A store is a regulated system whether or not anyone inside the business describes it that way. This page names the rules that reach an ordinary retail operation selling online, the systems a storefront has to reconcile with, what actually moves the cost of a commerce build, and what to ask any vendor bidding for the work, including us.
Depending on the seniority and mix of the team. Where the scope is clear we quote a fixed price for a defined outcome.
PCI DSS, WCAG 2.2, the ADA, GDPR and the CCPA, each named below with its issuer and what it means for the build.
Sthenos holds no PCI DSS, ISO or SOC 2 attestation and does not describe itself as certified against any of them.
Platform accounts, apps and integration credentials should be in your name from the start.
On this page
- The rules a retail and commerce system has to answer to
- The systems a store has to reconcile with
- What moves the cost of a commerce build
- What to ask an ecommerce vendor
- What we build for retail and commerce
- Published commerce case studies
- More on ecommerce and retail
- Talk to our engineers
Figure 1. From storefront to fulfilment, and where the PCI boundary falls
Every box is a system this page names. The dashed line is the PCI scope boundary: where the card form comes from decides which Self-Assessment Questionnaire your design implies, which is the comparison set out below.
The rules a retail and commerce system has to answer to
Five rules reach an ordinary retail operation selling online, and knowing which of them your store is actually inside is a design decision, not a legal formality taken afterwards. None of them is a badge Sthenos holds. We build to them, we scope which ones apply before design starts, and we hand over the evidence, which is a different sentence from claiming a certificate and is the only one that survives a buyer checking.
| Rule | Issued by | Who it binds | What it means for the build |
|---|---|---|---|
| PCI DSS, with its Self-Assessment Questionnaires | PCI Security Standards Council | In the council’s own words, “Entities that store, process, or transmit cardholder data (CHD) and/or sensitive authentication data (SAD) or could impact the security of the cardholder data environment (CDE)”. Whether a given merchant has to validate, and how, is decided by the acquirer or payment brand rather than by the council. | Where the card form comes from decides your annual assessment, and which of the three questionnaires compared below your design implies. We design to keep card data outside your environment unless a named requirement makes that impossible. |
| WCAG 2.2 | W3C, published as a W3C Recommendation on 12 December 2024 | A technical standard rather than a law. It is the yardstick the US Department of Justice points to in its own ADA web guidance, and it sets three conformance levels, A, AA and AAA. | Storefront, catalogue and checkout all have to satisfy the same four principles: content that is Perceivable, Operable, Understandable and Robust, the last defined as robust “enough that it can be interpreted by a wide variety of user agents, including assistive technologies”. Level AA conformance, in the standard’s own words, means “The Web page satisfies all the Level A and Level AA Success Criteria, or a Level AA conforming alternate version is provided.” Retrofitting it after a theme is chosen is what makes it expensive. |
| ADA, Titles II and III | US Department of Justice, Civil Rights Division | Title II reaches “all services, programs, and activities of state and local governments”. Title III “prohibits discrimination against people with disabilities by businesses open to the public”, which is what a retailer selling online is. | The Department’s guidance is that covered entities must ensure that the programs, services, and goods that they provide to the public, including those provided online, are accessible to people with disabilities, and it points to technical standards such as WCAG rather than naming one. For a merchant that means the buying path, not only the marketing pages, gets tested. |
| GDPR, Regulation (EU) 2016/679 | European Parliament and Council of the European Union | Article 3(2) reaches a controller “not established in the Union” when the processing relates to “the offering of goods or services, irrespective of whether a payment of the data subject is required, to such data subjects in the Union”. A US retailer that ships to the EU is inside that sentence. | Article 25 asks for data protection by design and by default, including “appropriate technical and organisational measures, such as pseudonymisation”. Article 32 names encryption and “a process for regularly testing, assessing and evaluating the effectiveness” of those measures. In a commerce estate that is a deletion path and an export path that actually reach the store, the order history, the CRM and the analytics stack. |
| CCPA | California Department of Justice, Office of the Attorney General | For-profit businesses doing business in California that cross any one of three thresholds the Attorney General publishes: annual gross revenue, the number of California residents whose personal information they buy, sell or share, or the share of revenue derived from selling personal information. | The rights have to be workflows, not policy text: the right to know, “The right to delete personal information collected from them (with some exceptions)”, “The right to opt-out of the sale or sharing of their personal information”, the right to correct, and the right to limit the use of sensitive personal information. The opt-out right the Attorney General lists covers sharing as well as selling, which is what brings ordinary advertising and audience tools inside it. |
Which PCI questionnaire a checkout design implies
SAQ A
PCI Security Standards Council- A payment page delivered entirely by the processor sits under SAQ A.
SAQ A-EP
PCI Security Standards Council- A site that shapes that page without receiving account data sits under SAQ A-EP.
SAQ D for Merchants
PCI Security Standards Council- A store that accepts cardholder data on its own website is the first example the council gives for SAQ D for Merchants.
The systems a store has to reconcile with
Retail software rarely fails inside the storefront. It fails on the seams between the storefront and the systems around it, which is where the cost and the operational risk sit. These are the surfaces a commerce programme runs into, and what each one is for.
What moves the cost of a commerce build
A published band answers a different question from the one a merchant is actually asking, which is why their own project sits at one end of a range rather than the other. These are the axes that decide it.
The SKU count sets how much of the work is data rather than code: import and cleanup, attribute modelling, search tuning and the testing surface all scale with it. Variants, configurable products, bundles and per-customer pricing multiply it again.
Orders per month decides how much of the fulfilment path can stay manual, what the integrations have to sustain, and how hard the busiest trading day of the year is.
Each of the surfaces listed above is a two-way reconciliation, and reconciliation is where the hidden work lives.
Quotes, approval chains, credit terms and contract pricing turn a store into an application.
Products, customers, order history and every URL. The redirect map is not optional, and a missing one is where replatform traffic losses trace back to.
Which PCI questionnaire the architecture implies, whether the store is inside GDPR or CCPA, and what accessibility conformance is being built to. Each of these is cheap to design in and expensive to add.
What to ask an ecommerce vendor
These questions work on any vendor in this category, including us. A firm that cannot answer them quickly is telling you something.
- Which platform do you recommend for us, and when would you recommend against it? A firm that recommends the same platform every time is describing its bench, not your business.
- Which PCI self-assessment questionnaire does your proposed design put us in? If the answer does not name SAQ A, SAQ A-EP or SAQ D, nobody has thought about where card data goes.
- How will you test the checkout for accessibility, and against which standard? WCAG 2.2 Level AA is the usual answer. A vendor who names no standard is telling you they will not test.
- Where will customer data live, and walk me through a deletion request. The answer has to trace through the store, the order history, the CRM and the analytics stack, not stop at a policy page.
- Show me a migration you have done, including the redirect map. That single artefact separates the careful from the confident.
- Who owns the platform accounts, apps and integration credentials? They should be in your name from the start.
- What happens on the busiest trading day of the year, and who is on call during a checkout outage? Load testing before peak, and an escalation path agreed before you need it.
What we build for retail and commerce
Commerce programmes rarely stay inside the storefront. These are the services on this site that retail and commerce work actually draws on, each one a page you can read before you talk to us.
- Ecommerce solutions, Magento development and ecommerce development services, for the storefront itself and for the decision between a hosted platform, headless and a fully custom build.
- Custom software development, for the parts of a retail business no platform models: contract pricing, approval chains, fulfilment logic, and whatever a merchandiser currently keeps in a spreadsheet.
- ERP and CRM work, because order, inventory and customer data reconciling across the store, the finance system and the sales system is where the operational saving comes from.
- Data engineering and analytics, for the warehouse and reporting layer that lets merchandising, finance and marketing stop arguing about whose revenue number is real.
- AI and machine learning, applied inside the commerce workflow rather than beside it: search and recommendation, catalogue enrichment, support triage.
- Cloud consulting and migration, for the hosting, scaling and cost work that decides what peak trading looks like.
- Cybersecurity and penetration testing across the checkout, the admin panel and the integrations, which is where a store is actually attacked.
- Managed IT services and help desk for the operational layer after launch, and staff augmentation where your own team is delivering and needs more hands or a skill it does not have in house.
Published commerce case studies
Two published case studies, delivered with our partner NeoSOFT, carry the claims this page makes about catalogue work, payment routes and integration.
- Customized E-Commerce Platform Built for a Trend-Focused Clothing and Accessories Brand, described in the case study’s own words as “Enhancing visual appeal, inventory accuracy, and payment flexibility through deep platform customization”.
- Smart Commerce Platform Built for a Leading German Company in Advanced Cleaning Solutions, whose own summary line reads “Enhancing digital shopping experiences for cleaning devices through intelligent analytics and offline-first design”.
More on ecommerce and retail
Services: Ecommerce development services, ecommerce solutions, Magento development, ERP, CRM, penetration testing, managed IT services.
Standards, at their issuers: PCI DSS from the PCI Security Standards Council, WCAG 2.2 from the W3C, ADA web guidance from the US Department of Justice, Regulation (EU) 2016/679 on EUR-Lex, and CCPA from the California Attorney General.
Ours, on the same subject: the clothing and accessories platform, the smart commerce platform, what a redesign costs, and talk to our engineers.
Ready to talk? Tell us what your catalogue looks like, where the card form comes from today, and which systems already hold your orders, and we will tell you which parts of the work are known and which are discovery. Talk to our engineers.
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