Senior PHP Fullstack Software Engineer (AR)

About ThriveCart

ThriveCart is the leading no-code sales platform for digital course creators, coaches, entrepreneurs, and online businesses looking to boost revenue, drive conversions, and scale audiences. ThriveCart powers over 65,000 businesses and 12 million enrolled students, generating over $2 billion in annual sales. The platform provides all the tools businesses need to create high-converting checkout experiences, manage powerful affiliate campaigns, and deliver seamless student experiences with its built-in learning management system, Learn/Learn+.

Location

Remote - Argentina

Job Overview

We're looking for a strong Senior Full-stack PHP Software Engineer to join our team. You'll primarily extend and enhance both the backend services and frontend interfaces that power our funnel and onboarding builder—work that directly impacts how thousands of customers create and manage their checkout experiences.

You'll be working in a mix of modern (object-oriented PHP, Laravel/Symfony, React) and legacy code, shipping features that matter while helping us incrementally modernize the stack. You'll work alongside a team of skilled engineers who care about clean code, pragmatism, and shipping reliable, usable systems. You'll have real impact on a system serving 65,000+ businesses, with the autonomy to incrementally modernize it.

The Team & Codebase

Editor 2.0 team is focused on our funnel and onboarding builder - a visual editor customers use to create their checkout experiences. It's a complex UI with real-time preview, component management, and integrations with the rest of the platform.

The stack

PHP (Laravel/Symfony, OOP)

React components for editor UI

MySQL/PostgreSQL, Redis, RabbitMQ

REST APIs, Composer, PHPUnit, Docker, CI/CD pipelines

Deployments multiple times per week

We use PHPStan, PSR standards, and structured code reviews to maintain quality.

The environment

Small, autonomous team (4–5 engineers)

Real ownership of work – not just executing tickets

Direct collaboration with product and design

Thorough but constructive code reviews

Remote-first, async-friendly culture

Key Responsibilities

Week to week: Extend backend APIs, business logic, and database queries in PHP

Build and enhance UI components using React and modern JS

Ship features end-to-end: from requirements to production deployment

Debug and fix issues in both legacy and modern code

Write automated tests for backend and frontend flows

Participate in code reviews and technical discussions

Over time: Take ownership of specific backend services, API endpoints, or frontend modules

Help migrate legacy PHP/jQuery code to modern full-stack patterns

Improve performance, reliability, and scalability across the stack

Mentor other engineers through pairing and feedback

Required Skills

Technical: 5+ years of professional experience building and maintaining web applications at scale

Strong PHP fundamentals: OOP, MVC, Laravel/Symfony or similar frameworks

Experience with full-stack development (PHP backend + JS frontend)

Comfortable navigating legacy PHP codebases and modernizing them

Experience with REST APIs, relational databases (MySQL/PostgreSQL), and caching systems (Redis, Memcached)

Can write automated tests (PHPUnit, Jest, or similar)

Understanding of frontend basics: HTML, CSS, JavaScript

Familiarity with deployment pipelines, Git, and CI/CD

Experience of using AI Agents and implementing and building AI tools and Agents

Approach: You default to shipping incremental improvements over big rewrites

You ask good questions when requirements are unclear

You balance code quality with business needs

You're comfortable working in codebases that aren't perfect

You can explain technical tradeoffs to non-engineers

Nice to Haves

Experience building SaaS or e-commerce platforms

Migrating legacy PHP apps to modern frameworks

Experience with React or other modern frontend frameworks

Familiarity with microservices, modular architectures, or API-first designs

Cloud infrastructure experience (AWS, GCP)

What Success Looks Like

First 30 days

Ship at least one meaningful full-stack improvement

Understand key backend services and frontend flows

Comfortable navigating legacy and modern code

First 60 days

Independently own and ship medium-sized features across the stack

Provide helpful code reviews to the team

Identify and propose improvements to full-stack workflows or code

First 90 days

Have deep context in 1-2 areas and a roadmap for improvements you'd like to drive.

Lead a refactor or performance/quality improvement initiative

Measurably improve performance, reliability, or test coverage in your areas

Learn More About ThriveCart

Our team thrives on collaboration, innovation, and continuous growth. We foster an open environment with regular knowledge-sharing sessions and encourage active participation in shaping the platform. Our values include:

Commit to Excellence – We believe in delivering high-quality work and continuous improvement.

User-Focused Problem Solving – Every design should contribute to solving a real problem for our users.

Team Collaboration – We work better together, valuing input from every team member.

Growth Mindset – We embrace challenges as opportunities to learn and grow.