We are looking for a **Lead PHP Developer** to drive the design and deployment of scalable, stable platform solutions. In this role, you will collaborate with engineering teams to enhance performance, enforce platform limits, and improve load testing practices. Join us to contribute your expertise in a fast\-paced, growth\-focused company. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi\-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting\-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential. **Responsibilities** * Collaborate with engineering teams to analyze system architecture and detect performance bottlenecks * Provide recommendations based on data to enhance platform capabilities * Contribute to ongoing improvements of load testing strategies and tools * Document test plans, outcomes, and technical findings with clarity * Optimize platform bottlenecks to boost stability and scalability * Develop and enforce limits at various platform entry points * Support the creation and upkeep of monitoring and alerting frameworks * Assist in troubleshooting and resolving performance issues * Participate in enhancements of CI/CD pipelines * Work with cross\-functional teams to ensure alignment on platform governance objectives **Requirements** * Minimum 5 years of software development experience * Proficiency in PHP plus familiarity with Go or Scala languages and willingness to work across all * Experience using OpenTelemetry, Prometheus, and Elastic Stack tools * Knowledge of cloud platforms including Google Cloud Platform, AWS, or Azure * Understanding of microservice\-based architectures * Experience with continuous integration and continuous deployment systems * Strong analytical and debugging abilities * Background in e\-commerce, including store operations, catalog, and checkout processes * Excellent communication skills to convey complex technical information clearly * High motivation and initiative with proactive problem\-solving capabilities * Growth mindset with eagerness to learn new technologies and adapt * English proficiency at B2 level or above **Nice to have** * Experience with distributed and event\-driven system architectures * Skills in scalability and performance testing, including load generation and monitoring * Expertise in building automation for testing, data gathering, and reporting * Hands\-on experience with load testing tools such as K6, JMeter, and Blazemeter **We offer** * Connectivity Bonus (25,000 ARS are paid with a salary receipt at the end of each month as a non\-wages concept). * Medicina Prepaga (It covers the collaborator and direct family group). * Paternity Leave (Two additional days are added to what is established by law, total of 4 days). * Discounts card. * English Training (English lessons, twice per week). * Training Program (Access to multiple customized training plans according to the needs of each role within the company). * Marriage bonus (The company doubles the allowance established by law that ANSES offers). * Referral Program (Referral bonus is paid when the referral of a collaborator joins the Company). * External Agreements and Discounts. * Vacations: 14 calendar days a year *By applying to our role, you are agreeing that your personal data may be used as in set out in EPAM´s Privacy Notice and Policy.*