A miniature shopping cart filled with small cardboard boxes sits on a laptop keyboard. The laptop screen in the background displays a blurred e-commerce website, symbolizing online shopping and parcel delivery.

Custom Ecommerce Development Company

We deliver ecommerce development solutions which convert, stay fast under load, and fit the way your business actually runs.

  • Full-on ecommerce store development from scratch
  • Higher conversion rates on all devices
  • Consistent customer journeys across all touchpoints
  • Cleaner and faster critical ecommerce business processes
  • High-impact experience upgrades powered by AI and other latest tech

Powering up sales across all business models with ecommerce custom development

Our team equips you with the right tools and technologies to achieve your strategic and operational goals in online sales. Tap into our ecommerce center of excellence and digitize your way out of inefficiencies with our custom ecommerce development services.

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B2C retailers

Get higher conversion rates by supporting tailored user journeys and meeting evolving customer expectations with the latest technologies. We empower your ecommerce business with user-centric solutions and a top-level digital storefront to help you stand out in the competitive landscape.

B2B sellers

As a B2B ecommerce development company, we enable you to manage deals and handle transactions securely among all trading participants within a single interface. We build feature-rich online wholesale hubs and enhance existing trading venues to help businesses create a better global trade system and cooperate with local or international traders.

B2B2C

We help companies tap into economies of scale and deliver products or services to customers through an integrated supply chain of B2B2C models. Whether it’s a solution design tune-up or at-scale compatibility, our developers match your business requirements with the optimal tech stack.

Marketplaces

Maximize inventory turnover through our marketplace development by helping sellers enhance stock management, collect actionable customer insights, and deliver granular offers. From order management to logistics, Instinctools’ developers build tailored solutions for all back-office ecommerce processes to let your sellers focus on what matters the most.

Manufacturers

Gain visibility into supply chain management, grasp customer behavior and preferences, and facilitate sales operations. Our custom ecommerce solutions take over manual and time-consuming processes, connect natively to your ERP and CRM systems, and solve key product information challenges.

Distributors

Our custom ecommerce software development services and solutions can get you on the road quickly, powering your entire distribution business end-to-end. Gain from having one integrated application for stock management, orders and fulfillment, EPOS and CRM.

Why Instinctools
Increase speed to market

01

Reduce development cost

02

Assure information security

03

Get high-quality software

04

Scale team up and down

05

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Custom ecommerce software development for an omnichannel customer journey

As long as people start shopping in one place and finish in another, your data and workflows have to follow. We stitch together the routes your customers take to reach a decision and build omnichannel ecommerce where product, price, inventory, customer context, and order state stay consistent across web, mobile, marketplaces, and store operations, so journeys don’t break at the handoff.

  • Unified commerce state: one source of truth for catalog, pricing/promos, customer profiles, and entitlements
  • Inventory and fulfillment orchestration: real-time availability, split orders, ship-from-store and pick-up flows, smart routing
  • Returns and support continuity: the same order context everywhere
  • API-first extensibility: composable patterns that let you add channels fast without rebuilding the core
A circular diagram titled “Omnichannel customer experience” at the center, surrounded by icons labeled: Social media, Email, In person, AI-powered chatbots/LLMs, Mobile app, AI agents, and Google/Web search. Each channel is connected by lines.
A circular diagram titled Omnichannel customer experience with six icons: social media, email, in person, AI-powered chatbots/LLMs, mobile app, AI agents, and Google/web search, each connected around the central concept.
A vertical flowchart showing “Omnichannel customer experience” at the center, with lines connecting to: Social media, Email, In person, AI-powered chatbots/LLMs, Mobile app, AI agents, and Google/Web search—each with distinct icons.

Let your customers interact with you the way they want

Awards and recognition

Meet your project needs at scale with our all-in custom ecommerce development services

From ideation through ecommerce solutions development to release and support, we provide our clients with end-to-end ecommerce development expertise to help them build and magnify their online presence.

Ecommerce consulting

Partner with us to define and answer your most strategic business questions, establish a needs-based solution vision and create a detailed roadmap for your next project. Our experts collaborate with you on technological and operational aspects to match your needs with the right implementation approach.

  • Designing a commerce operating model with clear roles, processes, and governance
  • Mapping end-to-end workflows (quote-to-order, order-to-cash, returns) for further automation
  • Defining the data and insight layer early for spot-on reporting and personalization
  • Running app and website audits
  • Selecting an optimal ecommerce platform
Three people sit at desks in a modern office, each wearing headsets and working on desktop computers. The focus is on a man in a light blue shirt in the foreground, with two women working behind him. The office is bright and organized.
A monitor displays mobile app wireframes and flowcharts, while a nearby laptop shows colorful charts and graphs with Analyze Data and Growth on the screen. Glasses, a pen, and papers sit on the wooden desk in a modern workspace.

Ecommerce design

Our designers create outstanding UX/UI across web, mobile, and connected devices to support your brand identity and reel in more customers. We deliver on your design requirements by analyzing target audience needs, best industry practices, and the latest design trends.

As for B2B ecommerce development services and complex buying journeys, design work goes beyond looking good. We shape the UI around procurement realities: multiple roles, approvals, repeat orders, and data-heavy catalogs.

  • Self-service flows that reduce back-and-forth: quick reorders, saved lists, quote requests, and downloadable documents
  • Mobile-first layouts for field teams and on-the-go buyers, without losing context or control
  • Information architecture for large catalogs, advanced search, and filters that match how buyers actually shop
  • Role-based experiences for purchasers, approvers, and account admins with clear permissions and auditability

Ecommerce development

The experienced custom ecommerce developers put robust and scalable architectures to the core of your solutions, enabling your store to handle traffic spikes with zero disruption. Get the best time-to-market for your project and full compliance with your requirements.

  • Designing fully custom solutions from scratch and building on top of leading platforms, such as Shopify Plus, Adobe Commerce (Magento), SAP Commerce Cloud, BigCommerce, OpenCart, and more
  • Handling backend and frontend development
  • Providing microservices development for ecommerce
Two colleagues sit at a desk, collaborating and pointing at code on dual monitors. In the background, two more people discuss something near other computer screens in a modern, glass-walled office with green plants and bright lighting.
A person in a suit works on a laptop, using a stylus to interact with floating digital icons showing marketing concepts like keywords, ads, statistics, target, people, megaphone, and charts, symbolizing digital marketing and data analysis.

Ecommerce platform optimization

Enhance the existing solution to meet your growth demands and keep up with dynamic customer requirements. Our team enables you to make the transition from outdated, bulky infrastructures to integrated, all-around environments that boost conversion rates and improve your bottom line.

  • Performing ecommerce solution migration
  • Providing API-based integration services
  • Conducting DevOps review and optimization
  • Building custom ecommerce extensions

Migration

Up your digital strategy and move to new environments with added scalability, cost-effective management, and full-on automation. Instinctools’ engineers perform full-scale migrations while keeping your critical data safe and sound.

  • Transition to cloud-first architecture
  • Platform to platform migration
  • Legacy system migration
  • Data migration and integration
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Quality assurance and support

Our support teams and QA engineers ensure impeccable platform performance at all times by putting a tailored testing strategy in place or taking over the end-to-end software maintenance. Alongside custom ecommerce store development services, we offer high-quality, multi-channel technology support across the web, mobile, desktop, and cloud.

  • Assigning dedicated QA teams
  • Running usability testing on desktop and mobile
  • Performing troubleshooting and preventive maintenance
  • Executing 24/7 performance monitoring

Build a connected technology foundation for your ecommerce business

Featured success stories

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Building for AI-led buying with agentic commerce

The next customer hitting your store won’t always be a human. It’ll be an AI agent that can discover products, compare options, negotiate trade-offs, and place an order inside a chat interface. Our team of vetted AI engineers get your commerce stack ready for agent-led shopping in a way that’s safe, controlled, and measurable.

Agent-readable
product data

Turn your catalog into something an agent can actually reason over:

  • Structured attributes, variants, and constraints
  • Real-time inventory, delivery windows, and substitutions
  • Clean IDs across systems (SKU, pricing, promo logic)

Transaction-ready
checkout

Agents can’t convert if they can’t act. We expose the right surfaces for secure, API-first commerce:

  • Headless/composable APIs for pricing, cart, checkout, orders, returns
  • Reliable orchestration for multi-step purchases across services
  • Protocol-ready patterns where agent ecosystems require them

Trust layer for
autonomous actions

Execution power changes the security baseline. We implement controls that let agents help without turning them into a risk:

  • Role- and policy-based permissions
  • Human-in-the-loop approvals for high-impact steps, such as payment, substitutions, or refunds
  • End-to-end encryption for sensitive data and minimal data sharing by design
  • Compliance alignment with GDPR, ISO/IEC 27001, and other applicable standards

Run an agentic commerce readiness audit to see what’s
blocking
AI‑led purchases in your stack

Turn your ecommerce solution into a holistic ecosystem with custom integrations

Create a platform ecosystem that integrates across the value chain and business functions to unlock interoperability and cut down on admin work.

Customer relationship management (CRM)

Make your CRM the home base for all your customer, sales, and marketing data under one roof to elevate your customer experience and deliver consistent messages across channels.

  • Customer experience management
  • Sales and marketing management
  • Full-cycle lead and deal management
  • Automatic ticket categorization and routing
  • Issue monitoring across channels

Enterprise resource planning (ERP)

Grow your business by finding efficiencies, show always-accurate data in your web store, and minimize financial risks. Our team selects the optimal set of functional blocks for your custom ERP system, following your unique business needs.

  • Finance and accounting
  • Marketing and sales
  • Supply chain management
  • Document management
  • Order and returns management

Point-of-sale (POS) and in-store systems

Connect store operations to ecommerce so inventory, returns, and customer context stay consistent across channels. Our developers set up necessary integrations with your internal systems or hardware to improve sales.

  • Inventory and stock synchronization across physical and online stores
  • Click-and-collect, in-store pickup, and returns coordination
  • Unified customer profiles and purchase history for better service

Supply chain management (SCM)

Effective supply chain management starts with a consolidated view of all business operations. Our ecommerce web development company sets up a seamless data exchange between your SCM platform and an ecommerce stack to increase your production efficiency and minimize delays in product and service delivery.

  • Procurement management
  • Warehouse tracking
  • Order management
  • Logistics management

Payment systems and gateways

We integrate our custom ecommerce software with payment gateways, e-wallets, and point-of-sale systems. Our developers prioritize the security of integration to enable instant and secure transfer of a customer’s personal and payment information across channels.

  • API or non-hosted payment gateway integration
  • Self-hosted payment gateway integration
  • Hosted payment gateway integration
  • Custom payment gateways

Product information management (PIM)

Create a data core for your ecommerce business to collect, manage, and deliver the right product information to partners, distributors, and retailers. Sanitize and enrich product information in bulk, aligning all teams and departments around a shared platform.

  • Digital asset management across every channel
  • Master data management
  • Cross-channel inventory synchronization.
  • Advanced merchandising and search tools

Social media platforms

Weave social commerce into your revenue model and become closer to your customers. Our custom ecommerce development company helps you implement the innovative connected social media experience that combines inspiration, browsing, purchasing, and follow-up within one environment.

  • Social media shops integration with checkout
  • Custom social commerce plug-ins
  • Shoppable media solutions

Electronic data interchange (EDI) and partner connectivity

Exchange commerce documents with distributors, suppliers, and logistics partners in a predictable, auditable way, avoiding spreadsheet gymnastics.

  • EDI-driven order, invoice, and shipping notice flows (e.g., 850/810/856 equivalents, depending on your standards)
  • Partner onboarding and mapping to your internal data structures
  • Validation, error handling, and monitoring so partner data doesn’t silently break operations
What our clients say
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Bonnet
Patrick Reich
Co-Founder & CEO

The expectations for the quality of the initial product were very high. I think *instinctools did a great job ensuring those expectations are met. We met the developers we were going to be working with and it quickly became apparent that they are very qualified and were able to deliver the vision that we had from our side for the product. They clearly told us what they were going to do, and if there were questions or problems along the way, they clarified them really quickly thanks to transparent communication.

CANet
Dimitri Popolov
Research Data and Systems Manager

We had a tight delivery deadline and *instinctools has been able to find another developer and assign him to our project from one day to another. And we’ve been able to successfully deliver this project. When the partner is good, things are just getting done. And that was the case with *instinctools.

Helvar
Matti Vesterinen
Solution Development Manager

The quality has been good. It’s been on the expected level: things come on time, we have a good visibility on the things that *instinctools developers are doing and performing for us, communication is good. Wherever we see that we need some more exra resources, we have found *instinctools to be a good partner in helping us out on those areas.

SpecTec
Tim Rosenberger
Director, Global R&D

I’ve been impressed by the available skillset, the flexibility to ramp up resources quickly, and the scalability to extend development teams on short notice. I look forward to continue collaboration with *instinctools and their contribution to our projects.

Lition
Richard Lohwasser
Co-Founder & CEO

People at *instinctools are quite tech heads, which I like. They have used very advanced libraries, advanced techniques, advanced coding paradigms. So the advantage is that we get reusable code, that we get well-testable code, we get well-maintained code.

IPwe
Dr. Jonas Block
Product Owner

The *instinctools team exhibits the flexibility and professionality required for young companies. You can rely on their tested structures and processes that integrate nicely with your internal workflows. Being able to grow your team quickly with experienced professionals that start delivering value immediately and without a long interview process is a huge help. And personally, you will be working with a team of kind and interesting people.

SpexAI
Nadine Walther
Co-Founder & CEO

The team is dependable when it comes to managing time and finances, consistently staying within the designated budget. We’re pleased with *instinctools. Their business analysts are exceptional. They serve as the spokespeople between technology and business, representing both sides effectively.

Deif
Jeanine Shepstone
Senior Technical Writer

Instinctools is good at understanding the technical issues – once an issue is outlined, they do not need repeated explanation. They also do not simply accept a proposed solution, but they think about it and propose a better solution. I was really impressed by the custom interface they built for us – we outlined the requirements, and they implemented them in a user-friendly way that makes the interface a pleasure to use.

Sebastian Belle
VP of Engineering

Instinctools does deliver on time and budget. The company proactively asks how they can support our efforts and provide ideas how to help us with very good candidates with expertise that either we requested or that instinctools identified to be missing.

Alisa Delikatna
COO

The team demonstrated effective project management, timely delivery, and responsiveness to our needs. They established open communication to facilitate ongoing dialogue and held regular sprint meetings to keep stakeholders informed and engaged throughout the development process.

Detlef Ragnitz
Detlef Ragnitz
Engineering Director

Instinctools delivered everything on time and was very flexible towards changes in scope during the project work. The team was easy to work with and had a quick response time.

Beyond the storefront: we have solutions for all your ecommerce business processes

Leverage our domain expertise to develop a comprehensive vision across channels and turn your time drains into self-fulfilling tasks.

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Marketing and sales automation tools

Automate, track, and measure customer engagement across multiple channels to nurture leads, close high-ticket deals, and build up revenue. Our tailored automation solutions reduce labor-intensive tasks for your reps and marketers, allowing them to launch personalized and well-timed marketing campaigns at scale.

  • Streamline lead pipeline management
  • Benefit from automated campaign delivery
  • Run dynamic audience segmentation
  • Optimize marketing spend for multiple campaigns
  • Serve dynamic content across platforms

Order and inventory management

Take the complexity out of your supply chains, align inventory levels with the production demand, and keep track of every unit in stock. Our comprehensive inventory management solutions collate real-time data about product availability, in-house stock items, and deliveries to eliminate product overstock and deficits.

  • Eliminate manual data entry
  • Keep tabs on your inventory (serial number/batch tracking)
  • Automate credit checking and invoicing
  • Facilitate order management
  • Get real-time shipping rates

Reporting and analytics

Instinctools’ ecommerce developers and data analytics experts help you align your data, decisioning, and content management efforts across platforms and establish cross-channel traceability for your organizational, technical, and logistical processes.

  • Understand and predict customer behavior
  • Discover the most effective customer acquisition channels
  • Offer a personalized shopping experience
  • Tailor your product portfolio to customer needs
  • Optimize your cross-selling and upselling strategies

Cut on admin, double up value

Certified to the highest ISO standards

Outstanding tech capabilities to up your game in the ecommerce market

Harness the power of the forefront technologies to create an unparalleled shopping experience.

Artificial Intelligence

Employ machine intelligence to get personal with your customers and deliver them the right offer at the right time and through the right channel.

  • Hyperpersonalization
  • Real-time dynamic consumer profiles
  • End-to-end process optimization
  • Agentic AI workflows

Internet of Things

Our custom ecommerce software development company delivers cutting-edge software solutions to power your network of connected devices so you can bring your internal and external business processes to a new level.

  • Smart warehousing
  • Beacon-enabled loyalty programs
  • Wearables for retail
  • GPS and RFID tracking

Augmented/Virtual Reality

Make immersive realities part of your strategy and deliver unmatched levels of interaction supported by fast, frictionless, and blended cross-channel shopping experiences.

  • Try-before-you-buy solutions
  • Virtual store tours
  • 3D product catalogs
  • Custom V-commerce software

Robotic Process Automation

Inject automation across your value chain to streamline critical workflows, free up financial resources, and get the required momentum to grow your business.

  • Price management
  • Payment processing
  • Supply chain management
  • Inventory and supply chain automation
Tech stack and ample experience
Front-end development
JavaScript
TypeScript
HTML5
CSS3
React
Vue
Angular
Back-end development
NodeJS
Java
PHP
Content management systems
Wordpress
Joomla
Ecommerce platforms
SAP Commerce Cloud
Shopify
OpenCart

FAQ

What is custom ecommerce development?

Custom ecommerce web development refers to designing a bespoke digital solution for your ecommerce business that addresses your unique business needs and challenges as well as integrates natively into your internal digital estate.

How do I create a custom ecommerce website?

Creating a custom ecommerce website requires a bit more effort than setting up a standard website, but the rewards can be worth it. With a custom ecommerce site, you'll be able to better control the look and feel of your site, as well as build a more robust and user-friendly shopping experience for your customers. The best way to create a tailored digital experience is to reach out to a trusted custom ecommerce website development company. In this case, your vendor takes over the end-to-end development process, while you can focus on your business.

How do I hire an ecommerce developer?

Before you go into candidate screening, you need to shape your needs and size up tech requirements for your ecommerce project. Once you’ve set a well-shaped project vision, you should look for an experienced custom ecommerce software developer or a full cross-functional team. Or you can simply contact our consultants and we’ll match you with the right experts. As a custom ecommerce development company in the USA and EU, we serve clients globally.

How can I create my own ecommerce store?

You can either choose a ready-made platform to sell your products on or you can set up your store from scratch based on the custom architecture. If you’re looking for a large-scale solution, we recommend opting for ecommerce custom development to better accommodate your growing needs.

What are the benefits of custom ecommerce development?

Some of the benefits of custom ecommerce website development services include:

  • More control over the look, feel, and functionality of your store
  • The ability to scale your store as your business grows
  • Greater flexibility and customizability
  • Increased security
  • Better performance
  • Rich integration capabilities

If you're looking for a more personalized solution for your business, our custom ecommerce web development company is always there to give you a helping hand.

Anna Vasilevskaya
Anna Vasilevskaya Account Executive

Get in touch

Drop us a line about your project at contact@instinctools.com or via the contact form below, and we will contact you soon.