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.