Custom e‑commerce development services that drive revenue
E-commerce development is the process of building, integrating, and scaling online retail platforms – from B2B portals to ERP-connected systems. And Modsen provides performance-first e-commerce development services that reduce time-to-market and support long-term revenue growth.
Key figures behind Modsen E‑commerce development services
Dedicated
e-commerce team
7+ years
of domain expertise
Certified
e-commerce software developers
MACH-
architecture ready
30+
e-commerce projects
AI-driven
delivery process
E-commerce service options
Three ways Modsen team engages on custom e-commerce development: scale your in-house team with senior engineers, deliver full-cycle custom platforms, or audit your existing system before scaling or migration.
E-commerce development team augmentation
Our team embeds e-commerce-savvy engineers fast to close expertise gaps, speed up delivery, or stabilize complex logic. They integrate with your sprints, code review, and deployment process: no HR overhead, no long onboarding. Hire e-commerce developer capacity by the quarter as your roadmap evolves.
Custom e-commerce platform development
Off-the-shelf platforms cap your pricing logic, fulfillment workflows, and scale ceiling. Modsen provides custom e‑commerce development around your business model: your pricing tiers, fulfillment rules, data flows. Full transparency of roadmap, cost, and delivery. No platform lock‑in, no per-feature licensing fees that compound as you grow.
E-commerce system audit & IT consulting
Unclear revenue loss, growing technical debt, or pre-migration uncertainty – a system audit catches it before it costs a rebuild. We perform deep e‑commerce audits from storefront and checkout. Deliverable: an actionable report with prioritized recommendations, effort estimates, and a roadmap your engineering team can execute.
E-commerce development solutions built around your business
As an e-commerce development company, Modsen covers the full stack of e-commerce: storefront, checkout, backend, infrastructure, integrations. Engagement models adapt to your scope: Fixed price, T&M, Dedicated team.
Custom platform development We deliver custom e-commerce development from scratch: front-end in React, Angular and Vue; back-end in Node.js or .NET, third-party integrations, and architecture designed to scale, all with your exact specifications, and full ownership of the codebase and roadmap. |
Headless & composable commerce Composable commerce is a modular approach to building e-commerce: each part works as an independent service connected through APIs. Swap or upgrade one component without rebuilding the rest. Result: faster feature releases and scale that holds during traffic spikes. |
B2B e-commerce development B2B e-commerce platforms for wholesalers, manufacturers, and distributors. Account-based pricing, bulk ordering, EDI, approval chains, multi-warehouse logistics – built natively. Result: streamlined procurement with ERP-connected inventory. |
E-commerce mobile app development Modsen mobile development team provides app development services for iOS and Android: native Swift and Kotlin or React Native and Flutter, chosen by your roadmap. Push notifications, mobile payments, offline product browsing, and personalized recommendations. |
Legacy migration & re‑platforming E-commerce platform migration is high-stakes work where SEO, data integrity, and uptime all matter. We help you migrate with zero-downtime cutover, SEO redirect mapping, and full e-commerce data migration of products, customers, orders, and historical analytics. |
ERP, CRM & POS integrations Modsen handles e-commerce ERP integration with all main systems. Real-time sync of inventory, orders, customer data, pricing tiers across your commerce stack. Our services include custom API development, middleware design, and data transformation pipelines. |
E-commerce QA & performance testing We run e-commerce performance optimization: load testing for peak traffic, A/B testing of checkout variants, Core Web Vitals tuning, and conversion monitoring. Modsen AI-native QA handles regression and edge-case discovery in parallel with manual security review. |
IT infrastructure for e‑commerce Modsen team designs e-commerce infrastructure for high-growth D2C and enterprise: cloud hosting on AWS, GCP, or Azure, CDN with edge caching, auto-scaling for traffic spikes, disaster recovery, and PCI DSS-aligned payment infrastructure. |
Top custom software development partner
Technologies & platforms we work with
Our e-commerce development stack covers leading commerce platforms and the custom stack for headless and composable builds.
E-commerce platforms
Shopify- Shopify Plus
Magento
Bigcommerce
Woo Commerce
Salesforce Commerce Cloud
Commercetools
Java
Java 8/11/17/21
J2EE
Spring Framework
Kotlin
Ktor 3
Quarkus 3- Vert.x 4
JS
React
Angular
Vue.js
Next.js
Node.js
NestJS
Express- React Native
QA/AQA
- BDD
CI/CD
Selenium
Selenide
Playwright- Selendroid
Appium
AI/ML
Python
TensorFlow
Keras
PyTorch- MatLab
- Google Cloud Platform
.NET
C#
Visual Basic
F#- Linq
.NET Core- Entity Framework
Hibernate
ASP .NET MVC Core
WPF- MAUI
Mobile
- Objective-C
- Swift
SwiftUI- Java
- Kotlin
Jetpack Compose
Flutter
KMM
Business Analysis
- Requirements elicitation
- Requirements traceability
- Change management
- Diagramming
- Stackeholder management
- Prototyping
- Benchmarking
- Data analysis, SQL
System Analysis
- Requirements management
- Decomposition & Alignment
- Impact analysis
- Modeling
- Technical documentation
- Traceability
- System & Integration analysis
DevOps
- Cloud Platforms
- CI/CD
- Container Orchestration
- Infrastructure as Code (IaC)
- Configuration Management
- Monitoring & Observability
- Log Management
AI-powered e-commerce development approach
We embed AI into your e-commerce product – e-commerce automation for inventory and pricing, agentic commerce for autonomous B2B procurement, conversational commerce for AI-driven customer support and assisted checkout.
Why choose Modsen team as your e-commerce development partner
Choosing an e-commerce development company comes down to many questions. Whether you need a single platform build or a long-term e-commerce development agency partnership, here's what Modsen brings.
Full‑cycle development Hire Modsen team e-commerce developers for full project ownership: discovery, design, build, QA, launch, and ongoing support under one vendor contract. Working with Modsen reduces project coordination efforts by 30‑40% compared to multiple contractors. | Deep e‑commerce expertise With 30+ delivered e‑commerce solutions Modsen team understands the technical and operational challenges behind digital commerce growth, integrations, fulfillment, and customer experience. Our team also helps businesses adopt AI‑powered capabilities. | Scalable architecture Modsen team builds on microservices, cloud-native, and headless-ready architectures, designed to scale without full rebuilds. Composable commerce strategies supported end-to-end, so your stack evolves component by component as your business grows. |
B2B & enterprise ready From account-based pricing and ERP integrations to bulk ordering and multi-warehouse operations, we develop B2B e-commerce solutions tailored to complex enterprise environments and high‑volume commerce workflows. | AI & automation first We use AI-assisted development where it accelerates delivery without compromising security, compliance, or code quality. For our clients, we implement practical AI capabilities helping them stay competitive as e-commerce continues to evolve. | Transparent process Fixed-price sprints with weekly burn reports. Early staging access – you see the product before launch, not after. Project boards open to your team. NDA on day one. If we're behind, you'll know in week two, not month four. GDPR and ISO/IEC 27001 aligned. |
Our e-commerce development process
Our e-commerce development services follow a structured lifecycle with AI-supported delivery integrated where it accelerates work without compromising architecture decisions. AI handles routine research, documentation, and test scaffolding under engineer supervision.
Discovery & scope
Stakeholder interviews with product, ops, and engineering. Audit of existing systems and integrations. Tech stack and platform recommendation aligned to your roadmap. AI cross-checks specifications and catches gaps early.
Architecture & design
System architecture, API schema, UI/UX design for storefront, checkout, and admin flows. Headless or monolith decision locked in here. Modsen team's internal AI infrastructure accelerates diagram generation and pattern validation against past e-commerce development projects.
Development & QA
Two-week Agile sprints. Senior e‑commerce developers write production code under code review and pair programming. AI‑native QA runs autonomous test generation, regression analysis, and edge‑case discovery in parallel with manual security testing.
Launch & migration
Zero‑downtime deployment, SEO redirect mapping, e‑commerce data migration with validation checkpoints, smoke testing in production. Phased rollout: feature flags and traffic splitting where peak season makes big-bang risky.
Support & scaling
Infrastructure monitoring, e‑commerce performance optimization, feature releases per agreed roadmap. SLA-backed response times. Scaling support as your catalog and traffic grow – auto-scaling, CDN tuning, database optimization.
Industries we serve
Our team delivers e-commerce development services across six core verticals, each with its own catalog complexity, fulfillment logic, regulatory framework, and customer expectations.
Fashion & apparel
|
B2B manufacturing & wholesale
|
Electronics & tech
|
Healthcare & medical
|
Food & grocery
|
Marketplace platforms
|
Our e-commerce development company in action: case studies
D2C brands, B2B manufacturers, marketplaces – e-commerce builds delivered by Modsen across different scales and architectures. Each case below covers the technical challenge, the solution, and the measured business outcome.
What our e-commerce clients say
“Modsen covers the entire back-end development of the project. We've completed the first round of development and received great feedback from the client. Plus the timelines were met, that what we needed. We could hardly achieve this success without Modsen.”
CEO, Software Company
Warsaw, Poland
Clutch · Verified
“During our collaboration, Modsen was involved in the project and aimed to cover all of our requirements. We see Modsen as a trustworthy partner, providing high-quality banking mobile app services. As a result we got a feature-rich and user-friendly app, enabling us to achieve higher levels of efficiency.”
Natalia Osipchik, Founder
UMIND
TopDevelopers · Verified
“The platform has launched and received positive feedback on its user experience as well as its look and feel. They help us decide the best way in which to deliver something that will ultimately help our business.”
Identity withheld for privacy
BusinessFirms · Verified
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E-commerce development services FAQ
What is custom e-commerce development?
How long does e-commerce development take?
How much does e-commerce development cost?
Do you build headless e-commerce solutions?
Can you integrate ERP and CRM systems with an e-commerce platform?
Do you build B2B e-commerce platforms?
Can you migrate our existing store to a new platform?
Hire our e-commerce developers that own outcomes.