Someone told you to “hire a CMS developer.” Or maybe you’re considering becoming one.
Either way, you’re probably wondering what they actually do all day. Because “CMS developer” sounds specific but also somehow vague. Developer who develops… a content management system? Or a developer who builds with one? Both?
Good question. The answer is mostly the second one — but with more nuance than that.
A CMS developer builds, customises, and maintains websites using Content Management System platforms. WordPress, Shopify, Drupal, Joomla — these are the environments they work in. Their job is to take those platforms and shape them into something that meets a specific client or business need.
Think of a CMS platform like a powerful engine that comes in a standard casing. A CMS developer is the engineer who takes that engine, redesigns the casing, adds custom parts, makes it faster, connects it to other systems, and hands over something that looks and functions exactly the way the client needs it to.
That analogy covers the spirit of the work. But the day-to-day reality involves a specific set of skills, responsibilities, and decision-making that’s worth understanding clearly — whether you’re hiring one, becoming one, or just figuring out where CMS development fits in the broader web industry.
This post gives you the full picture.
1. The Core Responsibility — Building on Existing Platforms, Not From Scratch
The most important distinction to understand upfront: a CMS developer is not building a website from raw code.
They’re building on top of existing platforms. That distinction shapes everything about the role.
From-scratch web development means writing every function, every database query, every user interface element from nothing. That’s how Facebook, Airbnb, and large custom web applications were built. It requires deep programming expertise across multiple languages and frameworks.
CMS development means taking a platform that already handles the core infrastructure — the database, the admin interface, the content storage and retrieval system — and customising it to meet specific requirements.
What “customizing” actually covers:
- Building custom themes that control how a site looks
- Building custom plugins or modules that add specific functionality
- Integrating third-party services — payment gateways, CRM systems, email platforms, booking tools
- Configuring existing themes and plugins to meet client requirements
- Optimising performance, security, and SEO
- Migrating content and sites between environments
The skill level required varies significantly depending on how deep the customisation goes. Configuring an existing plugin requires a different skill set than writing one from scratch. Both are legitimate CMS developer tasks.
The role sits at the intersection of web development and web design — technical enough to write PHP, JavaScript, and CSS, but also visual enough to understand layout, user experience, and design intent.
2. WordPress Developer — The Most Common CMS Developer Role
When most people say “CMS developer,” they mean WordPress developer.
WordPress powers roughly 43% of the entire internet. The demand for people who can build, customise, and maintain WordPress sites is enormous. It’s the dominant CMS platform by a margin that makes it the default skill to develop if you want consistent client work.
What a WordPress developer specifically does:
Theme development. Building or customising themes that control how a WordPress site looks. This ranges from modifying a purchased theme through CSS to building a completely custom theme from scratch using PHP templates, Gutenberg blocks, and the WordPress template hierarchy.
Plugin development. Writing custom plugins that add functionality WordPress doesn’t have by default. A custom post type for a portfolio. A booking system with specific business logic. A membership restriction layer. When existing plugins don’t do exactly what’s needed, a developer writes one that does.
Plugin configuration and integration. Selecting, installing, configuring, and integrating existing plugins. This sounds simpler than building from scratch — but choosing the right tool, configuring it correctly, and making it work alongside other plugins without conflicts requires real expertise.
WooCommerce development. Building and customising online stores on WordPress using WooCommerce. Custom product types, payment gateway integration, custom checkout flows, shipping logic — WooCommerce development is a specialisation within WordPress development that commands premium rates.
Performance optimisation. Making WordPress sites fast. Caching configuration, image optimisation pipelines, database query optimisation, CDN integration, Core Web Vitals improvement. This is increasingly important as Google’s ranking algorithms weight performance more heavily.
Maintenance and updates. Keeping sites updated, secure, and running correctly. WordPress core, theme, and plugin updates. Security monitoring. Backup management. Uptime monitoring.
3. What a CMS Developer Does on a Typical Day
Job descriptions describe the role. A typical day tells you what it actually feels like.
No two days are identical in CMS development. But common patterns repeat across most practitioner’s weeks.
Morning: Client communication and project planning
Most CMS developers start by reviewing messages from clients or project managers. What’s been approved. What feedback came in overnight. What’s blocking progress. A good CMS developer spends time clarifying requirements before touching code — ambiguous briefs produce wasted work.
Mid-morning: Active development
The main work block. Building a custom template. Writing a plugin function. Integrating a third-party API. Styling a section to match a design file. This is where the technical work happens — usually in a code editor connected to a local development environment.
Afternoon: Testing and troubleshooting
Built something new? Test it across browsers, devices, and screen sizes. Did something break unexpectedly? Isolate the cause systematically and fix it. Real CMS development involves a significant amount of debugging — finding why something isn’t behaving as expected. That process is less glamorous than building but equally important.
End of day: Deployments and client review
Moving approved changes from a staging environment to the live site. Sharing work with clients for review and feedback. Documenting what was done. Setting up the next day’s priorities.
The work that doesn’t fit neatly into “development”:
A CMS developer regularly does things that aren’t strictly coding. Advising clients on platform choices. Explaining technical decisions in plain language. Reviewing a designer’s mockup and flagging what’s technically feasible. Writing documentation for clients who need to manage their own content. All of that is part of the job.
4. The Technical Skills a CMS Developer Needs
The specific skills depend on which CMS platform the developer specialises in. But there’s a common technical foundation underneath most CMS developer roles.
HTML and CSS
The baseline. HTML defines the structure of web pages. CSS controls how they look. Every CMS developer needs fluency here. Not just “I know what these are” — actual working knowledge of semantic markup, responsive design with media queries, flexbox and CSS Grid, and CSS custom properties.
PHP (for WordPress, Drupal, and Joomla)
WordPress is built on PHP. Building custom themes and plugins requires PHP. Reading and modifying existing WordPress code requires PHP. The depth of PHP knowledge needed scales with the complexity of the work — basic theme customisation needs less than building a complex plugin from scratch.
JavaScript
Interactive web behaviour lives in JavaScript. Dropdown menus, form validation, dynamic content loading, animations, API calls from the front end — JavaScript is unavoidable in modern CMS development. Familiarity with jQuery (widely used in WordPress themes) and vanilla JavaScript is the minimum. Knowledge of modern frameworks like React is increasingly valuable for headless CMS development.
MySQL and database basics
WordPress stores everything in a MySQL database. Understanding how to query the database, write custom database queries using the WordPress $wpdb class, and optimise slow queries is practical knowledge for any developer working with WordPress at depth.
Version control with Git
Professional CMS development requires version control. Git tracks every change to the codebase. It allows multiple developers to work simultaneously without overwriting each other’s work. It makes rolling back a problematic change straightforward. Git is not optional in professional contexts.
Command line basics
Running WordPress via WP-CLI, managing Git repositories, deploying code via SSH — command line usage is a daily reality in professional WordPress development. It’s not complex once familiar but it’s a real barrier for developers who’ve only worked in graphical interfaces.
Local development environments
Setting up a local development server — using tools like Local WP, XAMPP, or Docker — is standard practice. Developers build on a local copy of the site, test thoroughly, and deploy to staging and then production. Working directly on live sites is a mark of inexperience.
5. The Difference Between a CMS Developer and a Web Designer
This distinction causes a lot of confusion. The two roles overlap. But they’re not the same job.
A web designer focuses on how a website looks and feels. They make decisions about layout, colour palette, typography, imagery, white space, and user experience. Their primary tools are often design software — Figma, Adobe XD, Sketch — and their output is a visual specification that developers implement.
A CMS developer focuses on how a website works. They take a design (or a template) and build a functional, technically sound website from it. Their tools are code editors, version control, local development environments, and the CMS platform itself.
Where they genuinely overlap:
Many CMS developers have strong design sensibility. They understand layout, can work directly with Elementor or similar visual builders to produce designed pages, and make aesthetic judgement calls during development. Many web designers learn enough CMS to implement their own designs directly.
The job title “WordPress Developer/Designer” is common precisely because many practitioners do both. For small projects, one person handles the whole thing — design decisions, technical implementation, and client communication.
The practical distinction for clients:
If you need someone to create the visual identity and user experience strategy for your website — you need a designer. If you need someone to build a technically sound, performant, custom WordPress site from an existing design or template — you need a developer. Many small business projects need both, which is why many CMS developers position themselves as doing both.
6. Types of CMS Developer — It’s Not One Single Job
“CMS developer” is an umbrella. Under it sit several distinct specialisations worth understanding.
Front-end CMS developer
Focuses primarily on the visual presentation layer. HTML, CSS, JavaScript, page builder work (Elementor, Bricks), responsive design. Strong design sensibility. Converts mockups into working pages. Usually comfortable in WordPress theme development but doesn’t go deep into back-end PHP.
Back-end CMS developer
Focuses on server-side functionality. PHP plugin development, custom post types, REST API integration, database queries, authentication systems, complex business logic. Less focused on aesthetics. More focused on functionality and performance.
Full-stack CMS developer
Comfortable across both front and back end. Handles the entire stack from design implementation through to database queries. The most versatile and typically the most in-demand for standalone freelance and agency work.
WooCommerce specialist
A WordPress developer who specialises in ecommerce. Custom product types, payment gateway integration, subscription billing, multi-currency, order management systems. Ecommerce specialisation typically commands higher rates than standard WordPress development.
WordPress theme developer
Builds WordPress themes — either for distribution on marketplaces like ThemeForest or as custom themes for specific clients. Requires deep knowledge of the WordPress template hierarchy, theme development standards, and often Gutenberg block development.
WordPress plugin developer
Builds WordPress plugins — custom functionality packages that extend what WordPress does. Plugin development requires stronger PHP knowledge than theme development and often involves public API design, security considerations, and compatibility testing across different WordPress versions.
Headless CMS developer
Works with CMS platforms as content backends feeding data via API to front-end applications built in React, Vue, or similar frameworks. Growing specialisation as more organisations move to decoupled architectures.
7. CMS Developer Salaries — What the Work Actually Pays
One of the most practical questions anyone considering this career asks. Let’s be direct about it.
Salaries vary significantly based on specialisation, experience level, location, and whether you work as an employee or freelancer.
Entry-level CMS developer (0–2 years):
- Employment: $35,000–$55,000/year in most English-speaking markets
- Freelance: $25–$45/hour
Mid-level CMS developer (2–5 years):
- Employment: $55,000–$85,000/year
- Freelance: $50–$85/hour
Senior CMS developer (5+ years):
- Employment: $85,000–$130,000/year
- Freelance: $85–$150+/hour
Specialist roles (WooCommerce, headless, enterprise):
- Employment: $100,000–$160,000+/year
- Freelance: $100–$200+/hour
Factors that push compensation higher:
Specialisation in a specific CMS platform or extension. Demonstrated portfolio of complex projects. Strong communication and client management skills. Agency experience. Published plugins or themes with proven track records.
The freelance premium:
Freelance CMS developers typically earn more per hour than employed counterparts at equivalent skill levels. The trade-off is income variability, business development effort, and handling your own taxes, benefits, and equipment costs.
For developers with strong client communication skills and the ability to manage their own pipeline, freelancing often produces higher total income than employment at the same technical level.
8. The WordPress Developer Specifically — Tools and Daily Stack
Since WordPress development is the most common specialisation, it’s worth mapping the actual tool stack a WordPress developer works with daily.
Code editor: Visual Studio Code is the dominant choice. Lightweight, extensible, with plugins for PHP, JavaScript, and WordPress-specific syntax highlighting. PhpStorm is an alternative used by developers who prefer a full IDE environment.
Local development: Local WP (by WP Engine) is the most popular tool for running WordPress locally on a Mac or PC. It creates isolated local site environments with one click. XAMPP and MAMP are older alternatives still in use.
Version control: Git is standard. GitHub, GitLab, or Bitbucket host remote repositories. Many developers use GitHub Desktop for a graphical interface alongside the command line.
Deployment: WP Pusher, DeployHQ, or manual deployment via SSH or FTP. Some hosts — particularly Kinsta and WP Engine — have their own deployment tools and staging environments built into their dashboards.
Page builder: Elementor Pro is the most widely used WordPress page builder in professional work. Bricks Builder is gaining traction among developers who prefer a more developer-oriented approach. Both output real HTML and CSS rather than proprietary markup.
WP-CLI: WordPress command line interface. Lets developers run WordPress operations — installing plugins, running updates, importing/exporting databases — directly from the terminal. Dramatically faster than clicking through the admin for batch operations.
Browser testing: BrowserStack or manual testing across Chrome, Firefox, Safari, and Edge. Mobile device testing via real devices or browser dev tools device simulation.
Performance testing: GTmetrix, Google PageSpeed Insights, and Lighthouse for performance auditing. These tools identify specific optimisation opportunities and measure Core Web Vitals scores.
9. What Clients Actually Hire CMS Developers For — Real Project Types
Understanding what clients hire CMS developers to do helps clarify what the job actually involves in practice.
Building new websites from scratch
The most common project type. A client needs a new website. They have a brand, a brief, sometimes a design mockup. The developer builds the WordPress site — theme, plugins, content structure, SEO configuration, performance optimisation — and delivers a working, live website.
Project duration: one to eight weeks depending on complexity. Budget: $500–$15,000+ depending on scope and developer level.
Redesigning existing websites
A client has an existing site that’s outdated, slow, or no longer fits their brand. The developer rebuilds the site — often migrating existing content — while improving performance, design, and functionality.
Adding custom functionality
A client’s existing WordPress site needs something it doesn’t do yet. A custom booking system. A directory listing feature. A client portal with restricted content. The developer builds a custom plugin or extends an existing one.
Performance optimisation
A client’s site is slow and they’re losing rankings and conversions. The developer audits the site, identifies bottlenecks — bloated plugins, unoptimised images, missing caching, poor hosting — and implements solutions.
WooCommerce store development
Building or expanding an ecommerce store. Custom product configurators. Multi-vendor marketplaces. Subscription products. Payment gateway integration. Wholesale pricing. These projects are technically complex and typically well-paid.
Ongoing maintenance retainers
Many CMS developers charge monthly retainer fees to manage ongoing site maintenance — updates, security monitoring, backup verification, minor content changes, performance monitoring. Retainers provide recurring income stability that project work doesn’t.
10. CMS Developer vs Software Developer — Key Differences
People sometimes wonder whether CMS development is “real” development. That question deserves a direct answer.
Yes, it’s real development. It involves writing real code. It solves real technical problems. It requires genuine programming knowledge.
But there are meaningful differences from software engineering that are worth understanding honestly.
Abstraction layer. CMS developers work above the infrastructure layer. They don’t manage servers, write operating system code, or design database engines from scratch. They build on platforms that handle those layers. This makes CMS development more accessible than systems programming but also defines its ceiling in terms of the types of problems it solves.
Speed of delivery. Because CMS platforms provide significant pre-built infrastructure, CMS developers can build functional websites in days or weeks that would take a custom software development team months. That speed advantage is a genuine value proposition for most business websites.
Problem types. Software developers often solve novel problems with no existing solutions. CMS developers more frequently solve known problems by configuring, extending, or integrating existing tools cleverly. Both require technical intelligence. They require it in different ways.
Career trajectory. Some CMS developers move toward deeper software engineering over time — learning more PHP, JavaScript frameworks, API design, or DevOps. Others specialise deeper within their CMS — becoming WooCommerce experts, Gutenberg block developers, or headless WordPress specialists. Both paths are legitimate.
The honest framing: CMS development is a highly practical, commercially valuable discipline. It’s not the same as engineering a distributed system at scale. It’s also responsible for more functional websites currently in use than any other approach to building for the web.
11. How to Become a CMS Developer — The Realistic Path
If you want to build a career in CMS development, here’s the path that actually works — without the detours that cost people months.
Step 1: Pick your platform and commit.
WordPress is the strongest choice for employment and freelance opportunity. Shopify is a strong second for ecommerce-focused development. Drupal has a smaller but well-paying enterprise market. Pick one and go deep rather than spreading across several.
Step 2: Learn the fundamentals before the platform.
HTML, CSS, and basic JavaScript first. These are not optional context — they’re the foundation every CMS developer uses daily. Trying to learn WordPress development without these is like trying to cook without knowing what heat does.
Step 3: Learn WordPress development specifically.
Work through the official WordPress developer documentation. Build a custom theme from scratch using the WordPress template hierarchy. Build a simple plugin. Install and configure a local development environment using Local WP. Learn WP-CLI basics.
Step 4: Build a portfolio of real projects.
Three to five live sites. Real URLs. Real problems solved. Your portfolio is your proof of work — it matters more than any certification or course completion. Build your own site first. Then build one for a friend or a local charity at minimal cost. Then take your first paid client.
Step 5: Learn the professional stack.
Git. Local development environments. Staging versus production workflow. Basic command line. These aren’t glamorous skills but they’re the difference between a hobbyist and a professional.
Step 6: Specialise.
Once you have general competency, pick a specialisation — WooCommerce, performance optimisation, headless development, Gutenberg blocks. Specialisation commands higher rates and makes marketing yourself easier.
Step 7: Build recurring income.
Add maintenance retainers to your service offering. Monthly retainers smooth income and create long-term client relationships. They also keep you close enough to client sites to catch and fix problems before they become client emergencies.
As the old craft tradition teaches: learn one trade properly before you try to master two. Depth before breadth in CMS development pays off faster than collecting surface knowledge across platforms.
12. Is CMS Development a Good Career in 2026 and Beyond
Every person considering this path deserves a straight answer to this question.
Yes. CMS development — particularly WordPress development — is a strong career choice in 2026.
Here’s why that’s not just optimism.
Demand is structural, not cyclical. Businesses need websites. Websites need maintaining, updating, and improving. That demand doesn’t disappear during economic downturns — if anything, businesses under cost pressure are more likely to maintain existing web assets than build new ones from scratch, which sustains maintenance and optimisation work.
AI hasn’t eliminated the role. AI tools like GitHub Copilot and various code generation platforms have changed how developers write code — making routine tasks faster. They haven’t eliminated the judgement, client communication, project management, and architectural decision-making that professional CMS development actually requires. The developer who uses AI tools effectively is more productive. The expectation is that developers use them.
The market is large and fragmented. WordPress alone serves millions of businesses. Most of them need ongoing help. Finding clients as a WordPress freelancer is genuinely achievable in a way that specialised software engineering roles are not — the client base is local businesses, not exclusively tech companies.
WordPress continues evolving. Gutenberg, Full Site Editing, the Site Editor, patterns and templates, headless WordPress via the REST API — the platform is developing in meaningful directions that create new skills to learn and new services to offer.
The realistic challenges:
The entry-level market is competitive. Getting your first few clients requires patience and a willingness to work at rates that don’t reflect your eventual value. The learning curve from “I can build a basic site” to “I can charge professional rates” takes six to twelve months of consistent work.
And the field rewards communication as much as code. The developers who build the best client relationships — who explain clearly, deliver reliably, and solve problems proactively — earn more than equally technical developers who struggle to translate their work into business outcomes.
Conclusion
So what does a CMS developer do?
They build, customise, and maintain websites on platforms like WordPress, Shopify, and Drupal. They write code — PHP, JavaScript, HTML, CSS — to extend those platforms beyond their defaults. They integrate third-party services. They optimise for performance and security. They translate client requirements into functional, polished web experiences.
It’s a role that combines technical skill with practical problem-solving and — in the best practitioners — a genuine instinct for what clients actually need beyond what they literally asked for.
The job isn’t glamorous in the way that building a consumer app sounds glamorous. But it’s consistent, commercially valuable, and accessible to anyone willing to invest the time to learn the craft properly.
For a business owner reading this: a good CMS developer is someone worth building a long-term relationship with. Not just a contractor you hire once and forget. Sites need ongoing attention. A developer who knows your site, your business, and your goals is more valuable than starting fresh with someone new every time something needs changing.
For someone considering the career: start with WordPress. Learn the fundamentals. Build real things. Get your first client before you feel ready. The learning that comes from real client work is faster than any course.
And if you’re a business that needs a WordPress site built properly — or an existing site improved, optimised, and maintained by someone who knows what they’re doing — WordPress Baba is exactly that.
📧 contact@wordpressbaba.com 📞 +880 1886-465676 🌐 wordpressbaba.com