We are seeking a dedicated **Lead PHP Software Engineer** to join our Platform Governance team, focused on ensuring the stability and scalability of our leading Open SaaS ecommerce platform. You will play a key role in designing and implementing solutions to manage platform performance and enforce resource limits, directly impacting the experience of thousands of merchants globally. If you are passionate about performance optimization and platform reliability, we encourage you to apply. 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 identify critical performance paths * Provide data\-driven recommendations for platform performance improvements * Enhance load testing methodologies, tools, and best practices within the team * Document and communicate test plans, results, and technical insights clearly * Optimize identified bottlenecks to improve platform scalability and stability * Develop and implement limits enforcement mechanisms across platform entry points * Support continuous integration and deployment processes to maintain platform health * Monitor platform metrics using Prometheus and ELK to ensure operational excellence * Leverage OpenTelemetry for performance tracing and diagnostics * Engage with cross\-functional teams to align platform governance strategies with business goals * Drive initiatives to proactively manage resource allocation and fair use across the platform * Mentor team members to foster growth and technical expertise * Stay current with emerging technologies relevant to platform governance and ecommerce **Requirements** * Minimum of 5 years of relevant software engineering experience in complex, scalable systems * Strong experience with PHP and proficiency in Go or Scala programming languages with readiness to work across all three languages * Expertise with OpenTelemetry, Prometheus, and Elastic Stack (ELK) for monitoring and performance analysis * Knowledge of cloud platforms such as Google Cloud Platform, AWS, or Azure and microservices architectures * Experience with continuous integration and continuous deployment (CI/CD) pipelines * Solid problem\-solving and debugging skills with a focus on system performance * Prior experience in the ecommerce domain including store operations, catalog management, and checkout workflows * Ability to articulate complex technical concepts to diverse technical and non\-technical audiences * Proactive attitude with a strong drive to identify challenges and implement solutions * Growth mindset with eagerness to learn new technologies and adapt to evolving challenges * Upper\-Intermediate English proficiency (B2\) for effective communication across teams **Nice to have** * Familiarity with distributed systems and event\-driven architectures * Experience in scalability and performance testing including load generation and monitoring * Expertise in automation for testing, data collection, and reporting * Hands\-on experience with load testing tools such as K6, JMeter, or Blazemeter * Prior exposure to Scala programming language **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.*