DEREKROSAS

Available for agencies — US / Spain / Worldwide

White-label development partner for digital agencies

Complex project? Overloaded team? Need to hit a deadline?

I help digital agencies deliver complex WordPress projects, build custom functionality, and add development capacity when workloads get overwhelming — working behind the scenes under your brand.

Bring me in for a specific technical task, a project your team cannot handle alone, a delivery that needs extra hands, or a tailored package of development projects.

Single projects · Custom project packages · Ongoing development partnerships

Available for agencies — US / Spain / Worldwide

Core positioning

Your behind-the-scenes technical development partner for advanced WordPress, custom platforms, and AI integrations.

How we work

Brief → Scope → Build & review → Deliver. You keep the client relationship. I ship the technical work.

Extra development capacity when your agency needs it most.

Three common situations where agencies bring in white-label development support — without committing to a permanent hire.

You've sold a project that needs specialized development.

Custom functionality, complex integrations, or a platform your current team cannot confidently deliver.

How I help: I take on the agreed technical scope and work with your team toward delivery.

Your team is overloaded.

Too many active projects, mounting technical tasks, and deadlines competing for your team's attention.

How I help: Add development capacity without committing to a permanent hire.

A project is falling behind schedule.

A blocked feature, unfinished integration, or technical bottleneck is putting delivery at risk.

How I help: Bring in focused technical support to assess the bottleneck and complete an agreed scope.

Availability and feasibility are confirmed before committing — no emergency guarantees, no unrealistic rescue promises.

Services built for agency workflows.

Four focused service lines. Each one is scoped to your brief, your stack, and your end client — open any category for the full capability list.

Advanced WordPress & WooCommerce

  • Custom WordPress functionality and plugins
  • WooCommerce customization and workflows
  • Figma-to-website implementation
  • Membership and LMS solutions

Custom Platforms & Web Applications

  • Private multi-user platforms
  • Custom dashboards and business tools
  • Workflow and business logic implementation
  • Spreadsheet-to-web-tool conversions

AI, APIs & Automation

  • AI-powered website features
  • External API integrations
  • Custom automation workflows
  • Python-based automation where appropriate

Tracking, Performance & Conversion Optimization

  • Google Tag Manager and GA4 implementations
  • Meta Pixel and conversion tracking
  • WordPress performance optimization
  • Technical SEO and Search Console support

Technologies & Tools

A practical stack for building custom functionality, connecting systems, and delivering technical solutions for digital agencies.

CMS & Ecommerce

  • WordPress
  • WooCommerce

WordPress Ecosystem

  • Elementor Pro
  • Advanced Custom Fields (ACF)
  • Tutor LMS
  • Paid Memberships Pro

Frontend

  • HTML
  • CSS
  • JavaScript
  • GSAP

Backend & Development

  • PHP for WordPress development
  • Custom plugin development
  • Business logic and workflow implementation

APIs & Automation

  • REST API integrations where applicable
  • Python automation
  • Data processing and workflow automation

Analytics & Tracking

  • Google Tag Manager
  • Google Analytics 4
  • Meta Pixel

Performance & Search

  • WordPress performance optimization
  • Conversion rate optimization
  • Technical SEO
  • Google Search Console
  • Google Merchant Center

Design Implementation

  • Figma-to-website implementation
  • Responsive UI development
  • Animation implementation where appropriate

AI

  • AI model integrations
  • AI-powered web features
  • Automated content and image workflows where applicable

Only the stack above is offered — no invented frameworks, no proficiency meters, no logo wall.

Flexible ways to work together.

Pick the engagement that matches your pipeline — from a single defined task to reserved capacity for recurring work.

Single Project

Bring me in for a clearly defined technical task or development project.

Best for:

  • Custom plugins.
  • Specific integrations.
  • Individual features.
  • One-off technical implementations.

Custom Project Packages

Bundle multiple development tasks or projects into a tailored scope that fits your agency's pipeline.

Best for:

  • Several related projects.
  • A backlog of technical tasks.
  • Multiple client implementations.
  • A planned sequence of deliverables.

Ongoing Development Partnership

Reserve development capacity for recurring agency work and ongoing technical needs.

Best for:

  • Agencies with recurring projects.
  • Continuous development requirements.
  • Long-term white-label collaboration.

Pricing depends on scope, complexity, urgency, and required capacity — no fixed prices, no unlimited availability or revisions.

Discuss a Project Package

[ Deadline support ]

Already committed to a project that needs extra technical help?

Whether you need a missing feature built, an integration completed, or additional development capacity to get a project moving again, let's review the current situation and define a realistic path forward.

  • Assessment of the current bottleneck
  • A realistic, agreed scope to move forward
  • No emergency guarantees — availability confirmed first
Talk Through the Project

Selected work.

Case studies showing the original problem, why custom development was needed, my specific contribution, and the verified result.

Placeholders below — replace with approved case studies. No names, metrics, or links are fabricated here.

Live project

Custom WooCommerce Store

Bordados Katana

WooCommerce store for hundreds of thousands of embroidery designs, with custom pricing logic and an automated mockup-to-import pipeline.

WooCommerce · Custom plugins (PHP) · Python automation

Bordados Katana homepage — WooCommerce store with embroidery design catalog
Visit live site

Live project

Boutique online store

Bohem

Online store for selling garments with her brand design, multiple photos and per-garment options, with automatic Mercado Pago checkout.

WooCommerce · Mercado Pago · UX

Bohem homepage — online store with garment catalog
Visit live site

Live project

Conversion-focused redesign

Russh Labz

Redesign with a benefit-led conversion structure and a landing page for a winning combo — from zero online sales to $15,000+ USD through the website.

Web redesign · Meta Pixel · Payment gateway

Russh Labz homepage — benefit-led store with product catalog
Visit live site

Your project could be next.

Share the brief, the stack, and the deadline — you get a clear scope and a plan.

Discuss a Project

Your technical partner.
Behind your brand.

The collaboration is designed for agencies that want to retain ownership of the client relationship while outsourcing agreed development work.

  • Built to your brief

    Work delivered according to the agency’s brief, specs, and acceptance criteria.

  • Clear scope & milestones

    Clearly defined scope, deliverables, and milestones — agreed before build starts.

  • Direct agency communication

    Direct communication with the agency — async-friendly, PM-ready updates, no client contact unless you ask.

  • White-label presentation

    White-label presentation and confidentiality arrangements agreed before the project starts. Specific IP and non-solicitation terms are defined in the project agreement.

Discuss a Project

From your brief to a clear delivery plan.

Five steps. No surprises, no black box. Urgent projects are assessed individually according to availability, complexity, and scope.

  1. Share the project

    Send the brief, the stack, and the timeline you're working toward.

  2. Review requirements and feasibility

    I review what's feasible, flag risks, and confirm availability.

  3. Agree on scope and terms

    Agree on scope, timeline, responsibilities, and pricing.

  4. Develop and review

    Develop and review at agreed milestones your PMs can follow.

  5. Deliver and support

    Deliver the agreed work and discuss any ongoing support.

[ Pilot ]

Test the collaboration with a paid pilot.

Start with a small, clearly scoped project to evaluate the development process, technical communication, and delivery quality before committing to a larger project package or ongoing partnership.

  • Clearly defined deliverables
  • Agreed acceptance criteria
  • Transparent project pricing
  • A practical path to repeat collaboration
Discuss a Pilot Project

Technical expertise built around agency needs.

I work with digital agencies to turn complex technical requirements into practical web solutions. My work spans advanced WordPress development, custom plugins, ecommerce functionality, private platforms, API integrations, automation, and AI-powered applications.

Each engagement is scoped around the agency’s requirements, existing workflow, and the needs of its end client.

Easy to personalize: biography, focus areas, and working style can be extended here — no invented credentials added.

What's your agency working on?

Tell me what you need to deliver, where your team needs technical support, and what timeline you're working toward.

What to include in your message

  1. Project type
  2. Current situation: new project, overloaded team, or delayed project
  3. Required technical support
  4. Deadline or target timeline
  5. Single project or custom project package
Discuss Your Project

Send your project details

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