A BigCommerce store can support business growth when its technical foundation matches the project goals. A basic theme update may need a frontend developer, while a headless storefront or complex integration requires broader technical expertise.

Having the right BigCommerce developer skills will help optimize your store’s operations, keep sensitive customer information secure, and minimize the high costs of redoing everything. usinesses should define their project requirements before they begin comparing candidates.

This article highlights what BigCommerce developer skills to look for in an ideal candidate. The guide also discusses ways of hiring BigCommerce developers.

What Does a BigCommerce Developer Do?

The roles of a BigCommerce developer is to create, configure, and maintain the web shops based on the BigCommerce platform. The exact BigCommerce developer responsibilities depend on the shop architecture and specific needs of the business.

A developer may customize a storefront theme, connect a payment gateway, migrate product data, or integrate an external business system.

Tasks performed by BigCommerce theme developers include:

• Customization of BigCommerce themes
• Creation of responsive product and category pages
• Incorporation of payment gateways and third party applications
• Data management for products, customers, and orders
• Cart and checkout customization
• Improving website performance and SEO
• Compatibility testing in different environments
• Resolving technical errors
• Supporting platform updates
• Documenting code and deployment processes

Businesses must not assume that all developers can handle all projects. Businesses should ensure that the BigCommerce developer skills needed for the project match the nature of the project itself.

When Should a Business Hire a BigCommerce Specialist?

A basic store may use standard themes and built in platform features. However, complex projects usually require an experienced developer.

A BigCommerce specialist can help when a project includes:

• Custom theme development
• Headless commerce development
• Third-party application integrations
• Enterprise resource planning system integrations
• Customer relationship management system integrations
• Custom payment workflows
• Checkout customization
• Store migration
• Multi-storefront expansion
• Performance improvement
• Accessibility improvements
• Ongoing maintenance

Businesses can hire BigCommerce developers when they need platform specific support. However, they should first confirm the required role, expected outcomes, and technical scope.

Essential BigCommerce Developer Skills

General web development experience provides a useful foundation. However, platform specific expertise shows whether a developer can work effectively within the BigCommerce environment.

Businesses should assess technical knowledge, testing methods, and security practices.  Communication skills and delivery experience should also be evaluated.

1. Strong Knowledge of BigCommerce Architecture

A candidate should understand how BigCommerce manages products, customers, and orders.

Strong BigCommerce developer skills include knowledge of store settings, theme architecture, and API’s. They should also have knowledge about webhooks, checkout tools, and platform limitations.

A capable developer should explain how one technical change may affect other parts of the store. They should also identify platform limitations before development begins.

Ask candidates to describe a recent BigCommerce project. Request details about the original problem, the selected technical approach, and the final result. A clear answer can reveal practical platform experience.

2. Stencil Theme Development

Stencil is the native theme framework for hosted BigCommerce storefronts. It supports custom themes, reusable components, and storefront previews.

The skills to look for in a BigCommerce developer for Stencil projects include:

• Handlebars template development
• HyperText Markup Language
• Cascading Style Sheets
• JavaScript
• Sass styling
• Cornerstone theme structure
• Stencil Command Line Interface
• Page Builder configuration
• Responsive design implementation
• Theme testing
• Theme deployment

The Stencil Command Line Interface allows developers to build, preview, and test themes in a local environment.

Ask the candidate to show a custom Stencil theme or storefront component. Review the mobile layout, loading speed, and user experience. A visually attractive portfolio does not always prove strong technical ability.

3. Catalyst and Headless Commerce Knowledge

Catalyst is a headless storefront framework created for BigCommerce. It uses technologies such as Next.js, React, and GraphQL. GraphQL is a query language that allows an application to request specific information from a data source.

A headless commerce model separates the customer facing storefront from the BigCommerce backend. This model offers greater control over the user experience. However, it also creates additional responsibilities for hosting, content management, and authentication.

Important BigCommerce development skills for headless projects include:

• Next.js development
• React development
• React Server Components
• GraphQL queries
• BigCommerce Storefront API knowledge
• Storefront authentication
• Server side rendering
• Caching strategies
• Hosting management
• Deployment management
• Headless checkout flows
• Technical search engine optimization

A business should confirm that the candidate has relevant headless development experience before assigning a Catalyst project.

Ask for a working project example. The developer should explain how the storefront retrieves product data, manages customer sessions, processes checkout actions, and handles deployment.

4. API Integration Experience

Many BigCommerce stores connect with accounting platforms, shipping providers, inventory tools, analytics platforms, marketing systems, and customer management software.

A developer should understand Representational State Transfer APIs. Representational State Transfer, or REST, is a common method that software systems use to exchange data. The developer may also need GraphQL knowledge, depending on the project.

Strong API integration experience includes:

• Authentication
• Data mapping
• Rate limit management
• Error handling
• Retry processes
• Data validation
• Integration monitoring
• Technical documentation
• Webhook configuration

The BigCommerce developer responsibilities for an integration may also include protecting access credentials, preventing duplicate records, monitoring data transfers, and resolving synchronization failures.

Ask the candidate how they would handle a failed order synchronization. A strong answer should cover error logging, automatic retries, and validation checks.

5. Checkout and Payment Knowledge

Checkout performance can affect revenue, customer trust, and completed purchases. A developer should understand cart behavior, taxes, and shipping rules. They must also understand  payment methods, discount logic, and order validation.

BigCommerce provides development tools for custom checkout experiences. These tools can support custom payment flows, external checkout applications, and advanced storefront requirements.

The skills to look for in a BigCommerce developer for checkout work include:

• Checkout Software Development Kit experience
• Payment gateway integration
• Address validation
• Shipping method validation
• Tax service integration
• Error message handling
• Mobile checkout testing
• Security awareness
• Regression testing

Regression testing confirms that a new change has not damaged an existing feature. A developer should never test risky checkout changes on a live store without a controlled release process. Ask how the candidate protects active orders during development and deployment.

6. Frontend Development and Responsive Implementation

A BigCommerce developer needs strong frontend development skills. They should also understand responsive design across mobile devices, tablets, and desktop screens.

The developer does not always need to lead visual design. A user interface and user experience specialist may define the visual system, navigation, and customer journey. The developer must convert that design into a stable and functional storefront.

Businesses that need deeper customer research and prototyping can use UI and UX design services before development begins.

A strong candidate should understand:

• Responsive layouts
• Reusable components
• Browser compatibility
• Product page usability
• Navigation behavior
• Form validation
• Mobile interactions
• Design system consistency

Ask the developer to explain how they test pages across different browsers and screen sizes.

7. Performance and Technical SEO Knowledge

A slow or unstable storefront can weaken the customer experience. It may also create problems for organic search visibility and conversion performance.

Important BigCommerce developer skills include script management, image optimization, caching, template efficiency, and structured data implementation. Developers should also understand what Core Web Vitals are. These metrics are developed by Google and measure loading speed, visual stability, and responsiveness.

A capable developer should know how to:

• Review third-party scripts
• Reduce unnecessary JavaScript
• Optimize product images
• Prevent unexpected layout movement
• Improve theme efficiency
• Test mobile performance
• Protect crawlable content
• Maintain canonical tags
• Create correct redirects
• Review structured data
• Protect metadata during migrations

Request a performance report from an old project. The candidate needs to elaborate on what was altered, the reason behind the alteration and how the result was measured.

8. Accessibility Knowledge

Accessibility helps more people use an online store. It can also improve usability across different devices and browsing conditions.

A developer should understand keyboard navigation, visible focus states, and meaningful alternative text. They must have knowledge of form labels, heading structure, and accessible color contrast.

Web Content Accessibility Guidelines provide standards for accessible digital experiences. Accessibility should form part of the BigCommerce developer hiring checklist.

Ask the candidate how they test navigation menus, forms, product options, and checkout fields with a keyboard. Ask how they identify missing labels, weak focus states, or inaccessible interactive elements.

9. Security and Access Control

A developer may receive access to customer data, store settings, payment configurations, APIs, and external systems. The business should grant only the permissions needed for the assigned work.

The candidate should understand:

• Secure credential storage
• Role-based access
• API token protection
• Data privacy
• Software dependency updates
• Input validation
• Secure deployment
• Access removal after project completion

Security knowledge should appear in both the technical interview and contract review. Ask how the developer stores sensitive credentials. Ask which permissions they need and why they need them. A capable developer should not request unrestricted access without a valid technical reason.

10. Quality Assurance and Deployment

Quality assurance is the process of testing a product to identify and prevent defects. A developer should test changes before release. They should also explain how they manage version control, code review, deployment approval, and rollback procedures.

Important BigCommerce development skills in this area include:

• Git version control
• Test planning
• Browser testing
• Device testing
• Integration testing
• Checkout testing
• Release documentation
• Rollback preparation
• Production monitoring

Ask the developer to describe a defect that reached a live environment. A trustworthy candidate should explain the cause, response, and prevention method.

Avoid candidates who claim that their work never causes defects. Experienced developers understand technical risk and improve their process after problems occur.

11. Communication and Documentation

Technical ability alone does not guarantee a successful project. The developer should communicate risks, progress, questions, and decisions in clear language.

Important soft skills include:

• Clear written communication
• Active problem solving
• Reliable time management
• Honest risk reporting
• Constructive collaboration
• Detailed technical documentation

These abilities support wider BigCommerce developer responsibilities. They also make future maintenance easier for internal teams and external partners.

Ask how the developer reports blockers. Review the clarity of their emails, proposals, estimates, and project notes during the hiring process.

Match Developer Skills With the Project

A practical BigCommerce developer hiring checklist should connect each project requirement with the right technical expertise.

Project Requirement	Skills to Prioritize
Theme customization	Stencil, Handlebars, Sass, and JavaScript
Headless storefront	Catalyst, Next.js, React, and GraphQL
Custom integration	REST APIs, GraphQL, authentication, and webhooks
Checkout customization	Checkout tools, payment integration, and checkout testing
Store migration	Data mapping, redirects, catalog validation, and rollback planning
Store migration	Core Web Vitals, script control, caching, and image optimization
Performance improvement	Core Web Vitals, script control, caching, and image optimization
Enterprise expansion	Multi storefront planning, integrations, security, and access control
Ongoing maintenance	Testing, monitoring, documentation, and release management

This approach helps businesses avoid overhiring and underhiring. It also gives hiring teams clear criteria for comparing candidates.

Businesses with broader requirements may need custom web development services that combine commerce expertise with frontend and backend development.

How to Hire BigCommerce Developers

A structured hiring process improves decision quality. It also helps businesses compare every candidate using the same criteria.

Step 1. Define the Project Scope

List the required pages, features, integrations, and business systems. State the storefront architecture, timeline, budget range, and expected support period.

This first step in how to hire BigCommerce developers creates the foundation for every later decision.

A vague project brief often produces vague timelines and estimates. Define the expected outcome before asking candidates to provide a cost.

Step 2. Build a Role-Specific Checklist

Use the project scope to create a BigCommerce developer hiring checklist. Separate essential skills from preferred skills.

A Stencil project may not require advanced React knowledge. A Catalyst project should not go to a theme developer with no headless development experience.

The checklist should include:

• Required platform experience
• Relevant technical skills
• Integration knowledge
• Testing expectations
• Security requirements
• Communication standards
• Documentation requirements
• Support expectations

Step 3. Review Relevant Work

Ask for two or three projects that match the planned work. Focus on relevance instead of portfolio size.

Review:

• The storefront architecture
• The developer’s role
• The technical challenge
• The solution they created
• The testing method
• The verified outcome

The skills to look for in a BigCommerce developer should appear in completed work. A candidate should not rely only on certificates or broad claims.

Ask which parts of each project the candidate completed. This question helps separate individual contributions from wider team output.

Step 4. Conduct a Technical Interview

Ask practical questions that relate directly to the project. Avoid technical trivia that does not test delivery ability.

Useful questions include:

1. How would you choose between Stencil and Catalyst?
2. How do you test a custom theme before deployment?
3. How do you manage failed API requests?
4. How do you protect checkout changes?
5. How do you reduce the impact of third party scripts?
6. How do you plan a BigCommerce migration?
7. How do you test keyboard accessibility?
8. How do you document deployment and rollback steps?
9. How do you protect API credentials?
10. How do you identify platform limitations?

A strong process for how to hire BigCommerce developers should reveal how candidates approach real technical risks.

Good answers should include clear reasoning. Candidates should explain their decisions, possible limitations, and alternative approaches.

Step 5. Use a Small Paid Assessment

A paid assessment can test actual BigCommerce development skills. Keep the task short, relevant, and separate from unpaid production work.

The task may involve:

• Building a Stencil component
• Reviewing an API integration plan
• Identifying performance problems
• Explaining a migration process
• Reviewing an accessibility problem
• Creating a deployment checklist

Evaluate code quality, communication, testing, and documentation. Also review how the candidate handles missing information.

Step 6. Check References and Working Practices

Ask previous clients or employers about delivery quality, communication, ownership, and reliability. Confirm that the candidate completed the work shown in the portfolio.

Review:

• Time zone overlap
• Reporting frequency
• Issue tracking
• Code review processes
• Availability
• Escalation procedures
• Post launch support

Reference checks should focus on the type of work that the new project requires.

Step 7. Confirm the Contract and Access Plan

The agreement should define scope, ownership, confidentiality, payment terms, and support.

It should also explain:

• Store access
• API permissions
• Code ownership
• Documentation
• Deployment approval
• Handover requirements
• Support periods
• Access removal

Teams that need flexible capacity can build a software development team around a defined project or ongoing workload.

Common Hiring Red Flags

Some warning signs appear before development begins.

Watch for:

• No BigCommerce-specific portfolio
• No clear distinction between Stencil and Catalyst
• Vague answers about APIs
• No testing process
• No rollback procedure
• Requests for unnecessary access
• Unrealistic delivery promises
• No documentation plan
• Poor communication
• Weak security awareness
• Inability to explain previous decisions

A strong BigCommerce developer hiring checklist should include these warning signs.

The goal is not to reject candidates because of every knowledge gap. The goal is to identify risks that could affect delivery quality, security, and store stability.

Common Hiring Models

Businesses can hire a freelancer for a defined task. They can choose an in house developer for continuous ownership. They can also hire a dedicated developer or use a staff augmentation team for flexible capacity.

The right model depends on:

• Project duration
• Required technical depth
• Internal management capacity
• Support requirements
• Budget structure
• Security needs
• Expected workload

A clear view of BigCommerce developer responsibilities helps the business select the right hiring model. A senior technical lead may need ownership of architecture, integrations, testing, and deployment. A theme developer may only need responsibility for a specific storefront update.

Businesses that need wider commerce support can also work with experienced eCommerce app developers.

What Affects BigCommerce Developer Cost?

There is no single cost for every BigCommerce project. The final price depends on experience, location, project complexity, and engagement model.

Cost factors include:

• Stencil or Catalyst architecture
• Number of custom templates
• API integrations
• Checkout customization
• Migration volume
• Performance requirements
• Testing scope
• Project timeline
• Post launch support
• Documentation needs

Businesses should compare scope, expertise, and long term value instead of choosing the lowest hourly rate.

A low estimate may exclude testing, documentation, deployment support, or maintenance. These missing services can create higher costs later.

Final BigCommerce Developer Hiring Checklist

Use this checklist before making a final decision:

• The project scope is clear
• The role matches the storefront architecture
• The candidate shows relevant BigCommerce work
• The candidate explains technical decisions clearly
• Required integrations are covered
• Checkout experience is confirmed when needed
• Performance knowledge is verified
• Accessibility knowledge is reviewed
• Security controls are discussed
• Testing steps are defined
• Rollback procedures are documented
• Communication expectations are clear
• Code ownership appears in the contract
• Handover documentation is required
• Post-launch support is agreed

This final review creates a consistent decision process. It also keeps the focus on verified evidence instead of sales claims.

Final Thoughts

The right hire depends on the store architecture, project requirements, and long term business goals.

Businesses should first define the required BigCommerce developer responsibilities. They should then match those needs with verified BigCommerce developer skills.

The skills to look for in a BigCommerce developer now extend beyond basic frontend coding. Modern projects may require Stencil, Catalyst, API integrations, checkout expertise, security knowledge, and performance optimization.

A structured process shows how to hire BigCommerce developers with less uncertainty. It also helps businesses choose professionals who can protect store performance, security, and long term maintainability.

Teqnovos provides BigCommerce specialists for custom themes, integrations, migrations, checkout work, and store optimization. Businesses can discuss their project scope before selecting the right developer profile and engagement model.