Developer — ColdFusion to PHP Migration

• Contract Developer — Cold Fusion to PHP Migration

Contract Developer — Cold Fusion to PHP Migration

Senior full-stack
· Contract
· Fully remote

Location: Fully remote (U.S.)

Engagement: Contract, hourly

Rate: $50–$75 / hour

Focus area: Legacy Cold Fusion migration to a modern PHP framework

COLD FUSION FLUENCY IS REQUIRED ON DAY ONE

This engagement is too short to learn Cold Fusion on. We need someone who can open an undocumented CFML codebase in week one and tell us what it does. Candidates with only casual exposure, or who plan to come up to speed on the job, will not be considered.

ABOUT THE ROLE

We are looking for a senior full-stack contract developer with real depth in both Cold Fusion and PHP to lead the migration of a legacy web application to a modern PHP framework.

This is a hands‑on technical role, not an advisory one. You will read, analyze, and decipher an existing Cold Fusion codebase — including undocumented logic and legacy patterns — and re‑architect that logic into clean, scalable PHP. You will also build new functional capability in the new architecture as the migration proceeds.

Dynamic Digital modernizes outdated technology, builds on proven frameworks, and delivers efficient development that helps our clients grow with confidence. We are a small team, the feedback loop is short, and what you build goes live for real clients.

KEY RESPONSIBILITIES

• Codebase audit and deconstruction. Analyze existing Cold Fusion (CFML/CFCs) application logic, data flow, background jobs, and business rules.
• Migration strategy and execution. Re‑architect and rewrite Cold Fusion features into modern PHP — Laravel, Symfony, or structured OOP PHP — keeping business rules intact while clearing legacy debt.
• Feature development. Design and build new functional modules and RESTful APIs directly in the new PHP architecture.
• Database and data integration. Maintain, refactor, and migrate relational schemas (MySQL, MS SQL, or PostgreSQL) and tune query performance through the transition.
• Dual‑environment support. Keep the Cold Fusion and PHP systems interoperable — sessions, data, and side‑by‑side execution — during a phased rollout.
• Documentation. Leave behind a written record of what the legacy system did and how the new one replaces it, so the next developer is not starting where you started.
• Code review and accountability. Review everything you ship, including anything produced with AI assistance, for correctness, quality, and security.

REQUIRED QUALIFICATIONS

• 7+ years of professional development experience, with substantial production Cold Fusion among it.
• Cold Fusion expertise — non‑negotiable. Extensive production experience with Adobe Cold Fusion or Lucee. You can read, debug, and translate both tag and script syntax, legacy includes (cfinclude), custom tags, components (.cfc), and application lifecycle scopes (Application.cfc / Application.cfm).
• PHP expertise. Strong command of modern PHP (8.x), object‑oriented architecture, design patterns, and current framework standards such as Laravel or Symfony.
• Migration track record. You have moved a legacy monolith onto a modern framework before without breaking production business logic. Be ready to talk through one in detail.
• Relational databases. Advanced SQL, query optimization, indexing, and data mapping.
• API design. Hands‑on experience building and consuming RESTful endpoints.
• Version control. Solid understanding of Git.
• AI‑assisted development. Comfortable using it, and accountable for what you ship with it. AI‑generated code gets the same review for quality and security as anything you write by hand — which matters more than usual when the source logic is undocumented.
• Independent delivery. You work from a written…