CMS Developer Job Description: Responsibilities, Skills, Interview Questions and Monthly Cost

A good CMS developer job description names the platform, the kind of work and the outcome you want, not just a list of tools. Vague postings attract people who have installed a theme once. Specific ones attract engineers who have shipped, migrated and rescued real content platforms.

This guide covers responsibilities, skills to test, interview questions and monthly cost, so you can write the posting and run the process with confidence.

What does a CMS developer do?

A CMS developer builds, customizes and maintains the system that lets non-technical people publish content, and keeps that system fast, secure and easy to edit.

The day-to-day varies by platform, but most roles cover the same ground:

• Build and maintain themes, templates and reusable page components
• Model content: custom types, fields, taxonomies and relationships
• Write plugins, modules or extensions when off-the-shelf ones do not fit
• Integrate the CMS with forms, CRMs, search, analytics and payments
• Manage performance: caching, image handling, database queries and page weight
• Handle security: updates, permissions, backups and dependency hygiene
• Plan and run migrations between platforms or major versions
• Set up editorial roles and approval workflows
• Document how editors should use what has been built

The last two matter more than most postings admit. A CMS is a product for editors, so a developer who ignores the editing experience creates support tickets for years.

When you write the posting, name the platform and say whether the work is mostly new builds, ongoing maintenance or a migration. Those are three different jobs, and candidates will self-select accordingly.

When should you hire a CMS developer instead of a full stack developer?

Hire a CMS developer when content management is central to your business, and a full stack developer when the CMS is a small part of a larger application.

Several signals point toward a specialist:

• Marketing or editorial teams publish daily and rely on the CMS
• You run a large content site, several sites or multiple languages
• You are migrating platforms and must preserve URLs, content and search visibility
• Plugin or module sprawl is slowing the site or creating security risk
• You are moving to a headless setup and need content modeling done well

A full stack developer is usually the better fit when you are building a custom web application, the CMS only holds a handful of pages, or the real complexity sits in backend logic. Full stack engineers are broad, and breadth is useful, but they often have less depth in a platform's quirks: its hooks, its caching behavior, its upgrade path.

A simple test: if editor complaints are the most common reason for engineering work, you need CMS depth. If API behavior is, you need a general engineer.

Many teams end up with both. A CMS developer owns the content platform while a full stack or front-end engineer owns the product around it. If you are unsure, start with one engineer and see where the backlog points.

Core skills to test before you hire a CMS developer

Test for platform depth, content modeling, front-end competence, performance and security, plus the communication skills that let a remote engineer work well with editors.

Use this as a checklist for your posting and your assessment:

Skill area	What to test	Why it matters
Platform depth	Hooks, templating, plugin or module architecture, upgrade path	Prevents hacks that break on the next update
Content modeling	Turning a messy brief into types, fields and relationships	Decides how easy the site is to edit for years
Back end	The platform's language, SQL, REST or GraphQL APIs	Needed for custom features and integrations
Front end	HTML, CSS, JavaScript, accessible and responsive components	Editors and visitors see the result
Performance	Caching layers, image optimization, query cost, asset loading	Slow pages hurt conversion and search visibility
Security	Roles, permissions, update discipline, input handling, backups	CMS platforms are common targets
Delivery	Git workflow, staging, deploys, rollback	Stops live edits on production
Communication	Explaining trade-offs to non-engineers	Editors and marketers are your users

A practical task works better than a quiz. Give the candidate a small brief, such as a landing page type with a hero, a repeating feature block and an author relationship, and ask them to model it and explain the editing experience. Keep it to a couple of hours. Review how they structure the content and what they would refuse to build, not just whether it runs.

At Dev-Hire, candidates go through a profile review, a communication check and a technical interview run by a senior engineer, and only the top 1.5% of applicants are accepted. You can still add your own task on top if your platform is unusual.

Interview questions that show real CMS experience

The best CMS interview questions ask candidates to describe things they have shipped, broken and fixed, because platform experience shows up in the details.

Try these, with what a strong answer sounds like:

1. Walk me through the last CMS site you built or rescued. What went wrong? Strong answers name specific problems, such as a plugin conflict, a slow query or a failed migration, and what changed afterward.
2. How do you decide between a plugin and custom code? Look for a view on maintenance cost, security, update risk and performance, not a blanket preference.
3. How would you model content for a site with articles, authors, topics and events? Listen for reusable types, clear relationships and attention to what editors will actually do.
4. A page loads slowly. Where do you look first? Good answers start with measuring, then cover caching, queries, images, scripts and third-party tags.
5. How do you keep a live site safe through updates? Expect staging, backups, version control, testing and a rollback plan.
6. Describe a migration you handled. How did you protect URLs and content? Strong candidates mention redirect mapping, content audits, test imports and a cutover plan.
7. How do you set up roles and permissions for a team of editors? Look for least privilege and an understanding of approval workflows.
8. When would you recommend a headless approach, and when would you not? A balanced answer weighs editor experience, preview, front-end cost and team skills.
9. An editor says the new page builder is confusing. What do you do? You want curiosity, a willingness to watch the editor work, and a bias toward simplifying.
10. How do you document your work for the next developer? Concrete habits beat good intentions.

Two red flags: answers that are all tool names with no trade-offs, and a casual attitude toward editing the live site directly.

What a CMS developer costs per month (all-inclusive)

A full-time remote CMS developer typically costs $2,500 to $6,900 per month all-inclusive, depending on level.

Level	Full-time, all-inclusive per month	Part time (half), all-inclusive per month
Mid-level	$2,500-3,700	$1,250-1,850
Senior	$3,500-4,900	$1,750-2,450
Lead or architect	$4,900-6,900	$2,450-3,450

Each figure is one all-inclusive monthly rate. It covers the engineer, payroll, benefits, equipment, free replacement and the Dev-Hire fee. There are no setup or placement fees, and the arrangement is month to month, so you can scale up or down as your roadmap changes.

How to choose a level:

• Mid-level: theme work, content updates, plugin upkeep and routine integrations
• Senior: migrations, headless builds, performance work, or anyone who will set standards for the platform
• Lead or architect: multi-site platforms, complex integrations, or leading other engineers

You can browse CMS developer profiles to see the kind of engineers available before you commit to a level.

How to onboard a remote CMS developer who works your hours

Onboard a remote CMS developer by giving them access, context and a small first win in week one, and by agreeing a daily overlap with your content team.

Dev-Hire engineers work your hours with a stated daily overlap, so editors can get answers while they are working. Make the most of that overlap with a simple plan.

Before day one

• Create staging access, repository access and admin accounts with the right role
• Write a one-page summary: platform version, hosting, plugins or modules in use, and how deploys work
• List the known problems, including the ones nobody wants to own

Week one

• Have an editor walk the developer through a real publishing task
• Ship one small ticket to production through your actual deploy process
• Agree how requests arrive: one queue, not scattered chat messages

First month

• Audit plugins or modules, set a performance baseline and check security basics
• Define done to include editor documentation, not just working code
• Hold a short weekly review with the people who use the CMS

On the hiring side, you get a shortlist in 48 hours and can start within a week. The steps are laid out on the how it works page.

Ready to price your hire? Use the cost calculator on the pricing page to see the all-inclusive monthly rate for your CMS developer.