WordPress Plugins That Do Not Break
Bespoke plugins built with proper architecture. Secure, maintainable, and production-ready.
Off-the-Shelf Plugins Are a Liability
The WordPress plugin directory contains over 60,000 plugins, and a significant percentage have not been updated in over two years. Installing a generic plugin means inheriting someone else's technical debt: conflicting JavaScript libraries, database bloat from unused tables, security vulnerabilities that never get patched, and support forums filled with unresolved issues. When a plugin author abandons their project, you are stuck maintaining forked code or scrambling for replacements. A custom plugin from Aleksandar Rasevic is built to your exact specifications, follows WordPress coding standards, and ships with full documentation and source code ownership.
Zero Conflicts
Namespaced classes, prefixed functions, and isolated database tables mean our plugins never conflict with your theme or other plugins.
Full Source Ownership
You own 100% of the codebase. No licensing fees, no SaaS tiers, no vendor lock-in. Host it wherever you want.
Security Audited
Every plugin undergoes security review: prepared statements, capability checks, nonces, and sanitization on every input and output.
Plugins engineered for production
Custom REST API Endpoints
We build custom WordPress REST API endpoints using register_rest_route() with proper namespace isolation, schema validation via WP_REST_Schema, and permission callbacks tied to WordPress capabilities. Endpoints support pagination, filtering, and ordering parameters following the WordPress REST API conventions. We implement request validation through args schema definitions, response caching with WP_Object_Cache, and comprehensive error responses with proper HTTP status codes. All endpoints are documented with OpenAPI-compatible schemas and tested via PHPUnit with WP_REST_Server mock requests.
Admin Dashboard Development
Custom admin interfaces built with React-powered Gutenberg components or Vue.js 3 embedded via wp_enqueue_script(). We use WP_List_Table for sortable data grids, WP_Customize for theme-adjacent settings, and add_meta_box() for post-type editing screens. Settings pages use the WordPress Settings API with register_setting(), add_settings_section(), and proper nonce verification. Admin notices, bulk actions, and CSV export functionality are standard. The UI matches WordPress admin styling through wp-admin/css/colors integration.
Third-Party API Integrations
We integrate WordPress with external services using wp_remote_get() and wp_remote_post() with built-in retry logic, exponential backoff for rate-limited APIs, and transient caching for response data. Webhook handlers process incoming requests with HMAC signature verification and idempotency checks. We have built integrations with Salesforce REST API, HubSpot CRM, Stripe Billing, Mailchimp Marketing API, Twilio SMS, Slack Webhooks, and custom proprietary APIs. OAuth 2.0 flows are implemented using the WP_Http API with secure token storage in encrypted options.
Booking & Reservation Engines
Custom booking and reservation plugins built around your business's real availability rules — time slots, staff/resource scheduling, and buffer times — using WP_Cron for reminders and WP_Background_Process for confirmation emails/SMS at scale. We build calendar sync (Google Calendar, iCal feeds), double-booking prevention with database-level locking, and admin dashboards for managing appointments. Session resume, waitlists, and multi-location scheduling are handled natively, not bolted on with a page-builder plugin.
Membership & Access Control
Custom membership systems with role-based access control using WP_Roles and WP_User APIs, content restriction via template_redirect and the_content filters, and subscription management with Stripe Billing integration. We implement capability checks with current_user_can(), custom post-type visibility rules, drip content scheduling with WP_Cron, and activity logging with custom database tables. Our membership plugins have handled 12,000+ concurrent users during live event streaming with zero performance degradation.
Data Import & Export Tools
We build bulk data processing tools using WP_Background_Process for handling imports of 100,000+ records without HTTP timeouts or memory exhaustion. Import pipelines support CSV, JSON, XML, and Excel formats with field mapping UIs, validation rules, and dry-run previews. Export tools generate filtered reports with date ranges, custom columns, and scheduled automated delivery via email or SFTP. We implement progress bars via AJAX polling, rollback functionality for failed imports, and detailed logging with Monolog integration.
Automated Workflows
Custom automation engines built on WP_Cron with true UNIX cron fallback, Action Scheduler for reliable background job processing, and event-driven architectures using WordPress action hooks. We build notification systems with conditional logic, multi-step approval workflows with custom post status transitions, and integration triggers that fire on post publish, user registration, form submission, or booking events. All workflows include execution logs, failure alerting, and retry mechanisms with dead-letter queues for debugging.
Legacy Plugin Migration
We migrate functionality from abandoned or outdated plugins to modern, maintainable code. The process involves auditing the legacy plugin's hooks and database schema, mapping data to new custom tables or post types with dbDelta(), and replicating frontend output through modern templates. We handle shortcode-to-block migration, options-table cleanup, and orphaned data removal. Migration scripts are idempotent, include rollback procedures, and are tested on staging clones before production deployment. Documentation covers every replaced function and hook for your development team.
How we work
Requirements Analysis
We start with a structured requirements document that maps your business process to WordPress hooks and data structures. We identify which WordPress APIs are relevant: custom post types, taxonomies, REST endpoints, cron schedules, or user meta. We audit your existing plugin stack to identify potential conflicts and define the database schema with dbDelta()-compatible CREATE statements. Deliverable: a technical specification with class diagram, hook list, API contract, and database schema.
Architecture Design
We design the plugin architecture using object-oriented principles: PSR-4 autoloading through Composer, namespaced classes following the Vendor\Plugin\ convention, and the singleton pattern for core plugin classes. We define activation and deactivation hooks for database table creation and cleanup, plan the settings API integration, and design the admin UI wireframes. The architecture document specifies every hook callback, filter priority, and capability check before a single line of production code is written.
Core Development
Development follows our plugin boilerplate with Composer autoloading, PHP 8.2 typed properties and return types, and strict input validation on every public-facing function. We use wpdb with prepared statements for all database queries, check_ajax_referer() for AJAX handlers, and current_user_can() on every admin action. Admin interfaces are built with React components compiled through Webpack 5. We commit to Git with semantic versioning and deploy to staging via CI/CD pipelines.
Integration Testing
We write PHPUnit tests using the WordPress test suite with WP_UnitTestCase base classes, achieving 80%+ code coverage on business logic. Tests cover activation/deactivation cycles, REST endpoint responses, database CRUD operations, capability checks, and edge cases like empty inputs and malformed requests. We run the plugin against the 10 most popular WordPress themes and 20 common plugins to verify compatibility. Admin workflows are tested with end-to-end browser automation using Codeception.
Security Audit
Every plugin undergoes a 25-point security audit before delivery. We verify SQL injection prevention through prepared statements, XSS protection via esc_html(), esc_attr(), and wp_kses_post() on all output, CSRF protection with nonces on every form and AJAX handler, and capability checks on all admin endpoints. We run static analysis with PHPStan at level 8 and use wp_nonce_field() verification on all POST requests. User capability escalations are explicitly documented and justified.
Deployment & Handover
Plugins are delivered as versioned ZIP files with README.md, CHANGELOG.md, and inline PHPDoc on every class and method. We install and activate on staging first, verify database migrations run cleanly, and provide a video walkthrough of admin screens. The handover document covers filter and action hooks available for customization, database table schemas, API endpoint references, and troubleshooting guides. For complex plugins, we provide a developer sandbox with sample data.
Technologies we use
"The WordPress plugin Aleksandar Rasevic developed for our membership site handles 12,000 concurrent users during live events. Clean code, proper architecture, zero crashes."
Frequently Asked Questions
How do you ensure plugin security?
Security is designed in from the first line of code, not added later. We use prepared statements for all database queries via $wpdb->prepare(), validate and sanitize all inputs with sanitize_text_field(), absint(), and wp_kses_post(), and escape all output using esc_html(), esc_attr(), and esc_url(). Every form submission and AJAX handler verifies nonces with wp_verify_nonce(), and all admin actions check capabilities with current_user_can(). Before delivery, we run static analysis with PHPStan at level 8 and manual code review against the WordPress Plugin Review Team's security guidelines.
Will your plugin work with my existing theme?
Yes. We build plugins using WordPress core APIs and standard hooks, which means they work with any theme that follows WordPress coding standards. We use namespaced classes and prefixed function names to avoid conflicts, enqueue scripts and styles only on pages where they are needed via wp_enqueue_script() with conditional checks, and never modify theme files. During development, we test compatibility against popular themes including Astra, GeneratePress, Kadence, and block-based FSE themes. If you have a custom theme, we review its code during the discovery phase to identify any edge cases.
Can you modify an existing plugin?
We prefer not to modify third-party plugin core files since those changes are overwritten on update. Instead, we extend functionality through WordPress hooks: add_action() and add_filter() let us modify behavior without touching the original code. If the plugin does not expose the hooks you need, we can build a companion plugin that interfaces with its database tables or API. For abandoned plugins with no active maintainer, we offer a full rewrite service that replicates the functionality in modern, maintainable code with full documentation.
Do you provide plugin documentation?
Every plugin ships with three levels of documentation. First, inline PHPDoc comments on every class, method, and hook callback so your developers can navigate the codebase with IDE autocomplete. Second, a README.md file covering installation, configuration, available filters and actions, and database schema. Third, a user-facing guide with screenshots for admin screens, shortcode references if applicable, and troubleshooting FAQs. For complex plugins, we record a video walkthrough showing how to use each feature. All documentation is written in Markdown and stored in your project repository.
What about updates and maintenance?
Custom plugins do not need updates for feature bloat since they do exactly what you need and nothing more. However, we provide maintenance coverage for WordPress core compatibility: when a new WordPress version releases, we test your plugin against it in a staging environment and apply any necessary adjustments. Bug fixes are covered for 30 days post-delivery. For ongoing peace of mind, our maintenance plan includes: monthly security scans, quarterly WordPress compatibility tests, priority support with 24-hour response, and up to 4 hours of feature enhancements per month. All updates are delivered through versioned releases with detailed changelogs.